U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Marine & freshwater research Remove constraint Journal name: Marine & freshwater research Subject eggs Remove constraint Subject: eggs Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
Start Over

Search

58  Search Results

1 - 58 of 58
Number of results to display per page

Search Results

1. Contrasting sizes at sexual maturity of southern rock lobsters (Jasus edwardsii) in the two Victorian fishing zones: implications for total egg production and management

Author:
Hobday, D.K.; Ryan, T.J.
Source:
Marine & freshwater research 1997 v.48 no.8 pp. 1009-1014
ISSN:
1323-1650
Subject:
Jasus edwardsii; egg masses; egg production; eggs; equations; fecundity; females; lobsters; sexual maturity
Abstract:
... Fecundity (F) of Jasus edwardsii Hutton (Decapoda:Palinuridae) in the two Victorian fishing zones (Eastern and Western) was estimated from egg masses collected from 98 mature females (97-164 mm carapace length, CL) and was found to be related to carapace length (CL) by the equation F = 0·0316L3.359 (r2 = 0·8539; n = 571). Size at onset of sexual maturity (SOM), estimated from samples of the commer ...
DOI:
10.1071/MF97143

2. Recruitment overfishing reference point for the American lobster, Homarus americanus

Author:
Ennis, G.P.; Fogarty, M.J.
Source:
Marine & freshwater research 1997 v.48 no.8 pp. 1029-1034
ISSN:
1323-1650
Subject:
refuge habitats; risk; overfishing; Homarus americanus; egg production; lobsters; eggs; adults
Abstract:
... A 21-year series of annual estimates of egg production and recruitment in a Newfoundland lobster population indicates similar asymptotic relationships for recruitment to the fishery and to the adult population, both derived from legal stock estimates. Lines with slopes equal to the 90th-percentile and median survival ratios drawn through the origin of the egg production-adult recruitment scatterpl ...
DOI:
10.1071/MF97201

3. Recruitment strategies in lobsters and crabs: a comparison

Author:
Cobb, J. Stanley; Booth, John D.; Clancy, Michael
Source:
Marine & freshwater research 1997 v.48 no.8 pp. 797-806
ISSN:
1323-1650
Subject:
Cancer (genus); life history; crabs; fecundity; phylogeny; swimming; lobsters; larvae; eggs
Abstract:
... Early life-history characteristics that affect recruitment in spiny lobsters, clawed lobsters and crabs of the genus Cancer are reviewed. Spiny lobsters have many small eggs, a short period of parental care, and a long larval life that terminates in a swimming postlarva. Cancer species also have many small eggs, but have a longer period carrying eggs and a short larval life. Clawed lobsters have s ...
DOI:
10.1071/MF97219

4. Batch or trickle: understanding the multiple spawning strategy of southern calamary, Sepioteuthis australis (Mollusca : Cephalopoda)

Author:
Kuipers, Matthew R.; Pecl, Gretta T.; Moltschaniwskyj, Natalie A.
Source:
Marine & freshwater research 2008 v.59 no.11 pp. 987-997
ISSN:
1323-1650
Subject:
Cephalopoda; developmental stages; egg production; eggs; energy; fecundity; females; oocytes; oviducts; progeny; spawning
Abstract:
... Many cephalopods are 'multiple spawners'; however, we know little about the timing and dynamics of egg production. This has implications for the allocation of energy to reproduction, lifetime fecundity and subsequent recruitment. The current study aimed to determine if Sepioteuthis australis (Quoy and Gaimard, 1832), which spawns multiple times, produces mature oocytes for deposition in a continuo ...
DOI:
10.1071/MF07200

5. Effects of freshwater flow on the year-class strength of a non-diadromous estuarine finfish, king threadfin (Polydactylus macrochir), in a dry-tropical estuary

Author:
Halliday, Ian A.; Robins, Julie B.; Mayer, David G.; Staunton-Smith, Jonathan; Sellin, Michelle J.
Source:
Marine & freshwater research 2008 v.59 no.2 pp. 157-164
ISSN:
1323-1650
Subject:
Acetes; Lates calcarifer; Polydactylus; climate change; eggs; estuaries; estuarine fish; freshwater; humans; infrastructure; linear models; population size; postlarvae; rain; salinity; spring; summer; wet season; Australia
Abstract:
... The year-class strength of the commercial catch of king threadfin (Polydactylus macrochir (Gunther, 1876)) was correlated with freshwater flows into a dry-tropical estuary over five consecutive years. The year-class strength of king threadfin, a non-diadromous estuarine species, fluctuated and correlated significantly with freshwater flow and coastal rainfall in spring and summer; a result similar ...
DOI:
10.1071/MF07077

6. Impact of Didymosphenia geminata on hyporheic conditions in trout redds: reason for concern?

Author:
Bickel, Tobias O.; Closs, Gerard P.
Source:
Marine & freshwater research 2008 v.59 no.11 pp. 1028-1033
ISSN:
1323-1650
Subject:
Salmonidae; eggs; fisheries; gravel; hydraulic conductivity; managers; mortality; nests; oxygen; rivers; spawning; stream channels; trout; watersheds; New Zealand; North America
Abstract:
... Didymosphenia geminata (Lyngbye) Schmidt (commonly called didymo) is an invasive diatom and of concern to fisheries managers in North America and more recently New Zealand. Didymo grows in thick mats in several river systems on the South Island of New Zealand, often smothering entire river beds. Salmonid eggs, deposited in gravel nests (redds), depend on constant water exchange across the riverbed ...
DOI:
10.1071/MF08011

7. Physical environmental conditions, spawning and early-life stages of an estuarine fish: climate change implications for recruitment in intermittently open estuaries

Author:
Nicholson, Geoff; Jenkins, Gregory P.; Sherwood, John; Longmore, Andy
Source:
Marine & freshwater research 2008 v.59 no.8 pp. 735-749
ISSN:
1323-1650
Subject:
Acanthopagrus; anaerobic conditions; bream; climate change; dissolved oxygen; eggs; estuaries; estuarine fish; juveniles; larvae; mortality; salinity; spawning; temperature profiles; yolk sac; Australia
Abstract:
... Significant variation in the egg and larval survival and juvenile recruitment of estuarine fishes has been linked to fluctuating environmental conditions. This present study compared the distribution and abundance of black bream (Acanthopagrus butcheri) eggs and yolk-sac larvae between two microtidal estuaries of different flow regimes, where the riverine flow into the Glenelg estuary was around e ...
DOI:
10.1071/MF07197

8. Temporal patterns of gastropod egg mass deposition on southeastern Australian shores

Author:
Przeslawski, Rachel
Source:
Marine & freshwater research 2008 v.59 no.6 pp. 457-466
ISSN:
1323-1650
Subject:
aquatic invertebrates; eggs; environmental factors; food availability; habitats; larvae; latitude; littoral zone; phylogeny; risk; spawning; surveys; Australia
Abstract:
... Spawning of marine invertebrates may be affected by environmental factors (e.g. food availability, environmental stress) or intrinsic factors (e.g. phylogenetic constraints, developmental mode); intrinsic factors may obscure environmental effects. Two-year surveys of gastropod egg mass deposition were conducted at two rocky intertidal sites in south-eastern Australia to test the following hypothes ...
DOI:
10.1071/MF07229

9. Effect of incubation and rearing temperature on locomotor ability in barramundi, Lates calcarifer Bloch, 1790

Author:
Carey, Geoff R.; Franklin, Craig E.
Source:
Marine & freshwater research 2009 v.60 no.3 pp. 203-210
ISSN:
1323-1650
Subject:
Lates calcarifer; ambient temperature; catadromous fish; eggs; juveniles; larvae; locomotion; rearing; swimming
Abstract:
... Temperature profoundly influences virtually all aspects of fish biology. Barramundi, Lates calcarifer Bloch, 1790, is a catadromous fish that undergoes several migrations in its life cycle, necessitating locomotion under various thermal conditions. The present study examined the effects of varying thermal regimes on performance in juvenile L. calcarifer by determining the effects of rearing and am ...
DOI:
10.1071/MF07250

10. Evaluating the use of the Daily Egg Production Method for stock assessment of blue mackerel, Scomber australasicus

Author:
Ward, T.M.; Rogers, P.J.; McLeay, L.J.; McGarvey, R.
Source:
Marine & freshwater research 2009 v.60 no.2 pp. 112-128
ISSN:
1323-1650
Subject:
Scomber; adults; biomass; egg production; eggs; genetic techniques and protocols; mackerel; spawning; temperature; Australia
Abstract:
... The present study evaluates the suitability of the Daily Egg Production Method (DEPM) for stock assessment of blue mackerel, Scomber australasicus and assesses methodological options for future applications. In southern Australia, estimates of mean daily egg production were higher for Californian Vertical Egg Tow (CalVET) nets than bongo nets, and in eastern Australia, were higher in October 2003 ...
DOI:
10.1071/MF08134

11. Freshwater snails in competition: alien Physa acuta (Physidae) and native Glyptophysa gibbosa (Planorbidae) in the River Murray, South Australia

Author:
Zukowski, Sylvia; Walker, Keith F.
Source:
Marine & freshwater research 2009 v.60 no.10 pp. 999-1005
ISSN:
1323-1650
Subject:
Physa; Planorbidae; adults; eggs; fecundity; hatching; indigenous species; invasive species; juveniles; mortality; rivers; salinity; salt tolerance; snails; temperature; Europe; Japan; North America; South Africa; South Australia
Abstract:
... Physa acuta (Draparnaud), an invasive species from Europe, is the most abundant freshwater snail in the Lower River Murray. Its ascendancy follows a general decline of native species, including the morphologically and ecologically similar Glyptophysa gibbosa (Gould). We began with two hypotheses. The first required comparisons of the salinity and temperature tolerances and other attributes of eggs ...
DOI:
10.1071/MF08183

12. How might an exotic fish disrupt spawning success in a sympatric native species?

Author:
Doupé, Robert G.; Schaffer, Jason; Knott, Matthew J.; Burrows, Damien W.
Source:
Marine & freshwater research 2009 v.60 no.5 pp. 379-383
ISSN:
1323-1650
Subject:
Melanotaenia; Oreochromis mossambicus; breeding; egg production; eggs; environmental impact; females; fish; indigenous species; invasive species; males; spawning
Abstract:
... Little is known of the underlying behavioural mechanisms that allow invasive species to gain an ecological foothold in novel environments. We tested how the exotic Mozambique tilapia (Oreochromis mossambicus) might affect spawning success in groups of the native Australian eastern rainbowfish (Melanotaenia splendida splendida) under experimental tank conditions using the presence of either an isol ...
DOI:
10.1071/MF08184

13. Reproductive biology of the eastern shovelnose stingaree Trygonoptera imitata from south-eastern Australia

Author:
Trinnie, Fabian I.; Walker, Terence I.; Jones, Paul L.; Laurenson, Laurie J.
Source:
Marine & freshwater research 2009 v.60 no.8 pp. 845-860
ISSN:
1323-1650
Subject:
Urolophidae; bycatch; eggs; females; introduced species; litter size; males; ovulation; parturition; phylogeny; sex ratio; Australia
Abstract:
... In applying a quantitative approach to the reproduction of Trygonoptera imitata, the present study contributes to understanding the wide diversity in the reproductive biology of the family Urolophidae and provides insights to help determine phylogenetic relationships. This localised species is taken as bycatch in several inshore fisheries and potentially impacted by a range of other anthropogenic ...
DOI:
10.1071/MF08165

14. Reproductive seasonality and embryo development in the draughtboard shark Cephaloscyllium laticeps

Author:
Awruch, C.A.; Pankhurst, N.W.; Frusher, S.D.; Stevens, J.D.
Source:
Marine & freshwater research 2009 v.60 no.12 pp. 1265-1272
ISSN:
1323-1650
Subject:
eggs; embryogenesis; estradiol; females; gonadosomatic index; hatching; males; progesterone; seminal vesicles; sharks; spermatozoa; steroid hormones; testosterone; Australia
Abstract:
... The draughtboard shark Cephaloscyllium laticeps is a common oviparous catshark found in Australia. Studies on the reproductive seasonality of catsharks and the reproductive endocrinology of oviparous elasmobranchs are limited to a few species. The aim of the present study was to investigate the reproductive seasonality and embryo development of C. laticeps using morphological and endocrine paramet ...
DOI:
10.1071/MF09030

15. Estuarine geomorphology and low salinity requirement for fertilisation influence spawning site location in the diadromous fish, Galaxias maculatus

Author:
Hicks, Andy; Barbee, Nicole C.; Swearer, Stephen E.; Downes, Barbara J.
Source:
Marine & freshwater research 2010 v.61 no.11 pp. 1252-1258
ISSN:
1323-1650
Subject:
diadromous fish; eggs; estuaries; geomorphology; habitats; physical properties; prediction; salinity; spawning; surface water; surveys; tides; vegetation; Victoria (Australia)
Abstract:
... In habitats such as estuaries, which are characterised by large and fluctuating gradients in abiotic variables, finding appropriate habitat for successful spawning and egg development can be critical to a species' survival. We explored how salinity requirements for successful fertilisation may govern the distribution of estuarine spawning habitat for the diadromous fish, Galaxias maculatus, which ...
DOI:
10.1071/MF10011

16. Life-history traits of the southern hemisphere eastern red scorpionfish, Scorpaena cardinalis (Scorpaenidae: Scorpaeninae)

Author:
Stewart, John; Hughes, Julian M.
Source:
Marine & freshwater research 2010 v.61 no.11 pp. 1290-1297
ISSN:
1323-1650
Subject:
Scorpaena; eggs; females; fisheries; gonadosomatic index; life history; longevity; males; otoliths; rockfish; spawning; Australia
Abstract:
... Fishes of the family Scorpaenidae (scorpionfish/rockfish) are important to benthic rocky-reef communities and fisheries globally. The present study is the first to provide biological information for any species of the genus Scorpaena (Scorpaena cardinalis) in southern hemisphere waters, namely south-eastern Australia. Growth of S. cardinalis was estimated using size-at-age data from sectioned otol ...
DOI:
10.1071/MF10040

17. Sedimentological characteristics of key sea turtle rookeries: potential implications under projected climate change

Author:
Fuentes, M.M.P.B.; Dawson, J.L.; Smithers, S.G.; Hamann, M.; Limpus, C.J.
Source:
Marine & freshwater research 2010 v.61 no.4 pp. 464-473
ISSN:
1323-1650
Subject:
climate change; eggs; environmental impact; habitats; islands; molluscs; nesting; nests; reproductive performance; sea turtles; sediments; Great Barrier Reef
Abstract:
... Sea turtles rely on reef islands for key parts of their reproductive cycle and require specific sediment characteristics to incubate their eggs and dig their nests. However, little is known about the sedimentological characteristics of sea turtle rookeries, how these sediment characteristics affect the vulnerability of rookeries to climate change, and the ecological implications of different sedim ...
DOI:
10.1071/MF09142

18. Using DNA barcodes to connect adults and early life stages of marine fishes from the Yucatan Peninsula, Mexico: potential in fisheries management

Author:
Valdez-Moreno, Martha; Vásquez-Yeomans, Lourdes; Elías-Gutiérrez, Manuel; Ivanova, Natalia V.; Hebert, Paul D.N.
Source:
Marine & freshwater research 2010 v.61 no.6 pp. 655-671
ISSN:
1323-1650
Subject:
Albula; DNA barcoding; Eucinostomus; Lachnolaimus maximus; adults; barcoding; eggs; endangered species; fisheries law; fisheries management; juveniles; larvae; marine fish; spawning; sympatry; Caribbean; Mexico
Abstract:
... Barcoding has proven a useful tool in the rapid identification of all life stages of fish species. Such information is of critical importance for fisheries management and conservation, especially in high-diversity regions, such as Mexico's marine waters, where more than 2200 species occur. The present study reports the barcode analysis of 1392 specimens from the Yucatan Peninsula, corresponding to ...
DOI:
10.1071/MF09222

19. A diver survey method to quantify the clustering of sedentary invertebrates by the scale of spatial autocorrelation

Author:
McGarvey, Richard; Feenstra, John E.; Mayfield, Stephen; Sautter, Erin V.
Source:
Marine & freshwater research 2010 v.61 no.2 pp. 153-162
ISSN:
1323-1650
Subject:
Holothuroidea; abalone; autocorrelation; eggs; females; fisheries; harvesting; males; spawning; surveys
Abstract:
... Sedentary benthic invertebrates exhibit clustering at a range of spatial scales. Animal clustering reduces the precision of diver surveys and can accelerate overexploitation in dive fisheries. Dive harvesters target the densest aggregations of males and females that produce the highest rates of egg fertilisation during mass spawning events. By quantifying these effects of harvesting on fertilisati ...
DOI:
10.1071/MF08289

20. Can large branchiopods shape microcrustacean communities in Mediterranean temporary wetlands

Author:
Waterkeyn, Aline; Grillas, Patrick; Anton-Pardo, Maria; Vanschoenwinkel, Bram; Brendonck, Luc
Source:
Marine & freshwater research 2011 v.62 no.1 pp. 46-53
ISSN:
1323-1650
Subject:
Triops cancriformis; adverse effects; aquatic habitat; bioturbation; eggs; environmental factors; predation; predators; salinity; wetlands; France
Abstract:
... It was recently suggested that large branchiopods may play a keystone role in temporary aquatic habitats. Using a microcosm experiment manipulating microcrustacean communities of Mediterranean temporary wetlands (Camargue, Southern France), we tested the following hypotheses: (i) large branchiopods (the notostracan Triops cancriformis and the anostracan Chirocephalus diaphanus) can limit microcrus ...
DOI:
10.1071/MF10147

21. DNA barcoding to support conservation: species identification, genetic structure and biogeography of fishes in the Murray—Darling River Basin, Australia

Author:
Christopher M. Hardy; Mark Adams; Dean R. Jerry; Leon N. Court; Matthew J. Morgan; Diana M. Hartley
Source:
Marine & freshwater research 2011 v.62 no.8 pp. 887-901
ISSN:
1323-1650
Subject:
DNA barcoding; barcoding; basins; breeding; conservation areas; digestive system; eggs; extinction; freshwater fish; genes; genetic variation; hybrids; indigenous species; introduced species; larvae; life history; mitochondrial DNA; overfishing; pollution; population size; predators; provenance; ribosomal DNA; ribosomal RNA; rivers; taxonomy; watersheds; Australia
Abstract:
... Freshwater fish stocks worldwide are under increasing threat of overfishing, disease, pollution and competition from introduced species. In the Murray—Darling Basin (MDB), the largest river system of Australia, more than half the native species are listed as rare or endangered. Active management is required to counteract reduction in population sizes, prevent local extinctions and to maintain ge ...
DOI:
10.1071/MF11027

22. Effects of climate change on fish reproduction and early life history stages

Author:
Ned W. Pankhurst; Philip L. Munday
Source:
Marine & freshwater research 2011 v.62 no.9 pp. 1015-1026
ISSN:
1323-1650
Subject:
acidification; adults; autumn; climate change; eggs; endocrine system; estrogens; habitats; hatching; larvae; marine fish; oceans; seasonal variation; spawning; spring; temperature
Abstract:
... Seasonal change in temperature has a profound effect on reproduction in fish. Increasing temperatures cue reproductive development in spring-spawning species, and falling temperatures stimulate reproduction in autumn-spawners. Elevated temperatures truncate spring spawning, and delay autumn spawning. Temperature increases will affect reproduction, but the nature of these effects will depend on the ...
DOI:
10.1071/MF10269

23. Uterine fluid composition of the dwarf ornate wobbegong shark (Orectolobus ornatus) during gestation

Author:
Ellis, Megan T.; Otway, Nicholas M.
Source:
Marine & freshwater research 2011 v.62 no.6 pp. 576-582
ISSN:
1323-1650
Subject:
Orectolobus; coastal water; eggs; electrolytes; fecundity; gestation period; metabolism; potassium; pregnancy; seawater; sharks; sodium; urea; yolk sac; Australia
Abstract:
... Low fecundity in chondrichthyans makes them extremely susceptible to fishing, so understanding the various reproductive strategies in this group is vital for management. Knowledge of the uterine fluid (UF) composition throughout gestation is fundamental to this understanding, yet is restricted to a few species. This study focussed on the UF composition of the wobbegong (Orectolobus ornatus), which ...
DOI:
10.1071/MF10138

24. Poorer breeding by little penguins near Perth, Western Australia is correlated with above average sea surface temperatures and a stronger Leeuwin Current

Author:
Belinda L. Cannell; Lynda E. Chambers; Ron D. Wooller; J. Stuart Bradley
Source:
Marine & freshwater research 2012 v.63 no.10 pp. 914-925
ISSN:
1323-1650
Subject:
Eudyptula; breeding; chicks; eggs; oviposition; penguins; prediction; sea level; statistical models; summer; surface temperature; Western Australia
Abstract:
... Using 20 years of data (1986 to 2008), we examined relationships between oceanographic variables (Fremantle sea level (FSL) – a proxy for the strength of the Leeuwin Current – and sea surface temperature (SST)) and five measures of little penguin, Eudyptula minor, breeding performance near Perth, Western Australia: namely (1) the laying date, (2) the number of chicks produced per pair, (3) the pro ...
DOI:
10.1071/MF12139

25. Comparative larval development of three amphidromous Rhinogobius species, making reference to their habitat preferences and migration biology

Author:
Masashi Kondo; Ken Maeda; Kentarou Hirashima; Katsunori Tachihara
Source:
Marine & freshwater research 2013 v.64 no.3 pp. 249-266
ISSN:
1323-1650
Subject:
habitat preferences; islands; rearing; evolution; larval development; streams; hatching; larvae; eggs; Ryukyu Archipelago
Abstract:
... Eggs and larvae of three amphidromous species of Rhinogobius goby (Rhinogobius brunneus, Rhinogobius sp. MO and Rhinogobius sp. CB) from Okinawa Island, Japan, were reared under uniform conditions to describe and compare their larval development. Although the larval morphologies of the three species were very similar, some differences were observed in the timing of ontogenetic events among them. R ...
DOI:
10.1071/MF12234

26. Downstream spawning migration by the amphidromous Australian grayling (Prototroctes maraena) in a coastal river in south-eastern Australia

Author:
W. M. Koster; D. R. Dawson; D. A. Crook
Source:
Marine & freshwater research 2013 v.64 no.1 pp. 31-41
ISSN:
1323-1650
Subject:
diadromous fish; eggs; estuaries; rivers; spawning; telemetry; Australia
Abstract:
... Understanding the reasons and cues for migration is crucial for developing effective conservation and management strategies of diadromous fishes. Spawning and movement patterns of the threatened diadromous Australian grayling (Prototroctes maraena) were investigated in the Bunyip River, Victoria, using drift sampling (2008–2011) and acoustic telemetry (2009–2010) during the autumn–winter spawning ...
DOI:
10.1071/MF12196

27. Effect of near-future seawater temperature rises on sea urchin sperm longevity

Author:
M. T. Binet; C. J. Doyle
Source:
Marine & freshwater research 2013 v.64 no.1 pp. 1-9
ISSN:
1323-1650
Subject:
Echinoidea; aquatic invertebrates; eggs; flow cytometry; global warming; larval development; longevity; mitochondria; oceans; population dynamics; seawater; spermatozoa; temperature
Abstract:
... Global warming has and will continue to warm the world’s oceans, which may have detrimental consequences for marine life. Studies assessing the impact of climate-change stressors on early life-stages of marine invertebrates have focussed on immediate fertilisation success or larval development, but have so far not considered gamete longevity. Recent studies have suggested that sea urchin fertilisa ...
DOI:
10.1071/MF12121

28. Hydrological manipulation to assist spawning of a threatened galaxiid fish in a highland lake system

Author:
Scott A. Hardie
Source:
Marine & freshwater research 2013 v.64 no.9 pp. 887-899
ISSN:
1323-1650
Subject:
life history; inland waterways; lakes; monitoring; water management; drought; spawning; freshwater fish; hydrology; indigenous species; larvae; eggs; adults; Tasmania
Abstract:
... Hydrological alterations threaten freshwater fishes globally, with infrastructure-related modification of inland waterways (e.g. dams, water diversions) having profound impacts on many species. Adapting existing water-management systems can provide opportunities for undertaking hydrological manipulations to assist management of threatened fishes. The present study conducted two hydrological manipu ...
DOI:
10.1071/MF12197

29. Riverine flow and spawning requirements of Macquaria ambigua oriens: implications for conservation and management

Author:
B. J. Cockayne; A. J. McDougall; T. Espinoza; K. R. Burndred; C. L. Thrupp; C. D. Broadfoot; M. A. Finn
Source:
Marine & freshwater research 2013 v.64 no.1 pp. 42-53
ISSN:
1323-1650
Subject:
Macquaria; eggs; larvae; perch; rivers; spawning; viability; water flow; water temperature; watersheds
Abstract:
... Understanding the life-history attributes of aquatic species is integral to the development of environmental-flow strategies in regulated river systems. This is particularly important when species are under continual and increasing pressure from water-resource development. In this study, the water temperature and flow requirements for spawning of the Fitzroy River golden perch (Macquaria ambigua o ...
DOI:
10.1071/MF12047

30. Variability of egg escapement, fishing mortality and spawning population in the market squid fishery in the California Current Ecosystem

Author:
Emmanis Dorval; Paul R. Crone; Jennifer D. McDaniel
Source:
Marine & freshwater research 2013 v.64 no.1 pp. 80-90
ISSN:
1323-1650
Subject:
autumn; ecosystems; eggs; fecundity; females; fisheries; fisheries management; markets; models; mortality; spawning; squid; California
Abstract:
... With an average yield of 70000Mt from 1999 to 2006, market squid (Doryteuthis opalescens) represents one of the most commercially valuable and biologically productive populations off California. An egg escapement model was developed for evaluating the population’s reproductive response to varying levels of fishing pressure and, potentially, for aiding management of the fishery. The model is founde ...
DOI:
10.1071/MF12085

31. Habitat requirements and spawning strategy of an estuarine-dependent fish, Percalates colonorum

Author:
Dylan E. van der Meulen; Chris T. Walsh; Matthew D. Taylor; Charles A. Gray
Source:
Marine & freshwater research 2014 v.65 no.3 pp. 218-227
ISSN:
1323-1650
Subject:
rivers; plankton; spawning; acoustics; hydrology; perch; predation; larvae; eggs; habitats; estuaries; adults; Australia
Abstract:
... Determining the links among estuarine hydrography, habitat and spawning of estuarine-dependent fish is essential for understanding reproductive dynamics, recruitment processes and directing conservation efforts. Acoustic tracking was used to evaluate fine-scale spatial and temporal patterns in spawning activity of Percalates colonorum (estuary perch) within the Shoalhaven River, south-eastern Aust ...
DOI:
10.1071/MF13060

32. Ocean–estuarine connection for ichthyoplankton through the inlet channel of a temperate choked coastal lagoon (Argentina)

Author:
Daniel O. Bruno; Sergio M. Delpiani; María B. Cousseau; Juan M. Díaz de Astarloa; Gabriela E. Blasina; Ezequiel Mabragaña; Eduardo M. Acha
Source:
Marine & freshwater research 2014 v.65 no.12 pp. 1116-1130
ISSN:
1323-1650
Subject:
Brevoortia; life history; reproduction; correspondence analysis; spawning; ichthyoplankton; fish larvae; rain; seawater; species diversity; wind direction; temperature; eggs; estuaries; Argentina
Abstract:
... We examined the fish larvae colonising pattern of the Mar Chiquita lagoon (Argentina). We hypothesised that in this microtidal lagoon, winds could regulate fish larvae dynamics. Ichthyoplankton samples were taken in marine waters, the surf zone and the estuary. Previous studies showed no reproduction by fishes with planktonic eggs inside the lagoon. However high abundance of eggs and larvae of Bre ...
DOI:
10.1071/MF13128

33. Resource quality controls detritivore consumption, growth, survival and body condition recovery of reproducing females

Author:
Aitor Larrañaga; Ana Basaguren; Jesús Pozo
Source:
Marine & freshwater research 2014 v.65 no.10 pp. 910-917
ISSN:
1323-1650
Subject:
Alnus; Echinogammarus; Eucalyptus; Quercus; biomass; body condition; detritivores; eggs; females; freshwater; leaves; nutrients; plant litter; population structure; protein content; rearing; reproduction; secondary productivity; streams; toxicity
Abstract:
... Although the effect of resource quality on density, biomass, growth rate and secondary production of consumers has been frequently documented, the direct repercussion of resource quality on reproduction has been less investigated. Here we tested the hypothesis that resource quality can limit body-condition recovery of reproducing individuals. For this, we reared ovigerous females of the freshwater ...
DOI:
10.1071/MF13165

34. High sediment temperatures influence the emergence of dormant aquatic biota

Author:
Daryl L. Nielsen; Elke Walburga Jasper; Nathan Ning; Susan Lawler
Source:
Marine & freshwater research 2015 v.66 no.12 pp. 1138-1146
ISSN:
1323-1650
Subject:
air temperature; aquatic plants; climate change; eggs; fauna; germination; sediments; seeds; wetland plants; wetlands
Abstract:
... Under the influence of increasing air temperatures, dormant seeds of wetland plants and eggs of microfauna may be subjected to increased sediment temperatures that adversely affect their capacity to germinate or hatch, while the wetland is in its ‘dry’ phase. We conducted a mesocosm experiment to investigate the influence of sediment temperature on the emergence capacity of dormant seeds and eggs. ...
DOI:
10.1071/MF14272

35. Long-term dynamics of the zooplankton community during large salinity fluctuations in a coastal lagoon

Author:
Luciana Rabelo Araújo; Paloma Marinho Lopes; Jayme Magalhães Santangelo; Francisco de Assis Esteves; Reinaldo Luiz Bozelli
Source:
Marine & freshwater research 2015 v.66 no.4 pp. 352-359
ISSN:
1323-1650
Subject:
chlorophyll; coastal water; community structure; dormancy; eggs; environmental factors; freshwater; hatching; phosphorus; regression analysis; salinity; species diversity; zooplankton; Brazil
Abstract:
... Aquatic coastal systems are affected by high fluctuations in salinity and the zooplankton may rely on dispersal or dormancy to recolonise these environments. Here, we analysed the long-term dynamics of the zooplankton community over 6 years during large salinity fluctuations in a coastal lagoon (Garças Lagoon, Brazil) and the effect of salinity on the hatching patterns of the resting egg bank. We ...
DOI:
10.1071/MF14083

36. Reproductive capacity of a marine species (Octopus tetricus) within a recent range extension area

Author:
Jorge E. Ramos; Gretta T. Pecl; Jayson M. Semmens; Jan M. Strugnell; Rafael I. León; Natalie A. Moltschaniwskyj
Source:
Marine & freshwater research 2015 v.66 no.11 pp. 999-1008
ISSN:
1323-1650
Subject:
Octopodidae; eggs; environmental factors; fecundity; females; geographical distribution; germ cells; males; progeny; reproductive performance; spring; summer; Tasmania
Abstract:
... To persist in the face of environmental change, species must adjust to the new conditions or change their geographical distribution, e.g. by range extension. Success for individuals within a zone of range extension requires the new environment to support their capacity to produce viable gametes and survival of the offspring. Reproductive characteristics of the polewards range-shifting Octopus tetr ...
DOI:
10.1071/MF14126

37. Spatial variation in life-history traits of Oithona spp. in a shallow temperate estuarine system (Río de la Plata, south-west Atlantic) during spring

Author:
G. D. Cepeda; R. P. Di Mauro; M. C. Hozbor; D. Cucchi Colleoni; D. Hernández; M. D. Viñas
Source:
Marine & freshwater research 2015 v.66 no.9 pp. 795-804
ISSN:
1323-1650
Subject:
bacterioplankton; biomass; chlorophyll; egg production; eggs; estuaries; females; habitats; life history; population dynamics; rivers; runoff; salinity; spring; taxonomic keys; temperature; zooplankton; Atlantic Ocean
Abstract:
... Oithonid species are key components of estuarine zooplankton communities. The spatial distribution of Oithona nana and O. helgolandica (syn. O. similis) and their population dynamics were studied for the first time in a shallow temperate estuarine system in the south-west Atlantic Ocean. Here we estimated the influence of physical (salinity and temperature) and trophic (chlorophyll-a and bacteriop ...
DOI:
10.1071/MF14011

38. The effects of different rice cultivation systems and ages on resting stages of wetland invertebrates in southern Brazil

Author:
Arthur Cardoso Ávila; Thaíse Boelter; Renata Martins dos Santos; Cristina Stenert; Norma Luiza Würdig; Odete Rocha; Leonardo Maltchik
Source:
Marine & freshwater research 2015 v.66 no.3 pp. 276-285
ISSN:
1323-1650
Subject:
eggs; food webs; insects; invertebrates; paddies; pesticides; rice; sediments; viability; wetlands; Brazil
Abstract:
... The use of machinery and pesticides in modern agriculture are supposed to negatively affect the viability and diversity of invertebrate egg banks. Studies that evaluate the emergence of invertebrates through analysis of their dormant stages are needed in order to identify the resiliency of food webs in wetlands. In this study, the following hypotheses were tested: (1) richness is lower in conventi ...
DOI:
10.1071/MF14048

39. Reproductive biology of an endemic amphidromous goby, Cotylopus acutipinnis, from La Réunion Island

Author:
Nils Teichert; Pierre Valade; Alexis Fostier; Henri Grondin; Philippe Gaudin
Source:
Marine & freshwater research 2016 v.67 no.4 pp. 526-536
ISSN:
1323-1650
Subject:
eggs; fecundity; females; histology; humans; islands; larvae; mortality; ovarian follicles; reproductive traits; rivers; spawning; water temperature
Abstract:
... Amphidromous gobies living in the rivers of tropical islands display a high continuous reproductive effort in response to environmental unpredictability. Females are usually able to spawn a large number of eggs over an extended season, which contributes to offset the high larval mortality. The increasing human pressure on the insular aquatic systems threatens these gobies and highlights the urgent ...
DOI:
10.1071/MF14264

40. Age and growth, reproductive biology, and histology in Atlantic needlefish (Strongylura marina) in a coastal freshwater lake

Author:
Mary E. Egbert; Roger A. Rulifson
Source:
Marine & freshwater research 2017 v.68 no.7 pp. 1325-1335
ISSN:
1323-1650
Subject:
Strongylura marina; abnormal development; adults; anadromous fish; animal age; animal growth; autumn; coastal water; coasts; eggs; freshwater lakes; gonadosomatic index; histology; life history; otoliths; reproduction; spawning; spring; summer; watersheds; North Carolina
Abstract:
... The Atlantic needlefish (Strongylura marina) is a coastal epipelagic species inhabiting shallow coastal waters along the western Atlantic coast from Maine to Brazil. Little has been published about the species due to lack of commercial or sport value. A population exists in Lake Mattamuskeet, a coastal lake connected to Pamlico Sound (NC, USA) via four man-made canals, and fish access is controlle ...
DOI:
10.1071/MF16211

41. Effects of high pCO2 on early life development of pelagic spawning marine fish

Author:
Ana M. Faria; Soraia Filipe; Ana F. Lopes; Ana P. Oliveira; Emanuel J. Gonçalves; Laura Ribeiro
Source:
Marine & freshwater research 2017 v.68 no.11 pp. 2106-2114
ISSN:
1323-1650
Subject:
Argyrosomus regius; Diplodus sargus sargus; Solea senegalensis; carbon dioxide enrichment; egg quality; eggs; hatching; larvae; marine fish; mouth; otoliths; pH; rearing; spawning; survival rate
Abstract:
... The present study investigated the effect of elevated pCO2 on the development of early stages of the pelagic spawning marine fish Solea senegalensis, Diplodus sargus and Argyrosomus regius. Eggs and larvae were reared under control (pH 8.0, ~570μatm) and two elevated pCO2 conditions (pH 7.8, ~1100μatm; pH 7.6, ~1900μatm) until mouth opening (3 days post-hatching). Egg size did not change with expo ...
DOI:
10.1071/MF16385

42. Life history aspects of carp (Pisces:Cyprinidae) in a dam lake ecosystem: current status and future needs

Author:
Ozlem Ablak Gurbuz
Source:
Marine & freshwater research 2017 v.68 no.10 pp. 1912-1920
ISSN:
1323-1650
Subject:
Cyprinus carpio; allometry; aquaculture; carp; condition factor; correlation; ecosystems; eggs; fecundity; females; fish production; habitats; lakes; life history; males; population structure; Turkey (country)
Abstract:
... An increase in aquaculture production may have positive effects on both food resources and a country’s economy. Carp (Cyprinus carpio L.) is the most common cyprinid species in Turkey and accounts for approximately one-fifth of total inland water aquaculture production. However, carp production in Turkey has decreased in recent years. Changes in carp population of Hirfanli Dam were compared with p ...
DOI:
10.1071/MF16251

43. Spawning area and season of butterfly kingfish (Gasterochisma melampus), a large scombrid adapted to cooler temperate southern water

Author:
Tomoyuki Itoh; Shiro Sawadaishi
Source:
Marine & freshwater research 2018 v.69 no.1 pp. 16-23
ISSN:
1323-1650
Subject:
Gasterochisma melampus; eggs; females; fish; gonadosomatic index; latitude; longitude; oocytes; spawning; Pacific Ocean
Abstract:
... In the present study we investigated spawning of the butterfly kingfish (Gasterochisma melampus), a Scombridae species distributed in circumpolar temperate waters of the Southern Hemisphere in the Atlantic, Indian and Pacific oceans. Using data from 25564 individuals collected by longline operations from 1987 to 1996, analysis of the gonadosomatic index, maturity based on oocyte size and the prese ...
DOI:
10.1071/MF17077

44. The importance of a constructed near-nature-like Danube fish by-pass as a lifecycle fish habitat for spawning, nurseries, growing and feeding: a long-term view with remarks on management

Author:
Paul Meulenbroek; Silke Drexler; Christoffer Nagel; Michael Geistler; Herwig Waidbacher
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1857-1869
ISSN:
1323-1650
Subject:
Barbus barbus; Chondrostoma nasus; adults; biodiversity; eggs; endangered species; fauna; fish; habitats; indicator species; indigenous species; juveniles; larvae; rivers; spawning; watersheds
Abstract:
... Major sections of today’s rivers are man made and do not provide the essential requirements for riverine fish. A nature-like fish by-pass system in Vienna-Freudenau was assessed for its function as a fish habitat. The study was conducted continuously over 3 years; 15 years after construction of the by-pass. The chosen nature-like construction of the by-pass system functions like natural tributarie ...
DOI:
10.1071/MF18121

45. Evaluation of the 137Ba mass-marking technique and potential effects in the early life history stages of Sepioteuthis lessoniana

Author:
Chun-I Chiang; Ming-Tsung Chung; Tung-Wei Shih; Tin-Yam Chan; Atsuko Yamaguchi; Chia-Hui Wang
Source:
Marine & freshwater research 2019 v.70 no.12 pp. 1698-1707
ISSN:
1323-1650
Subject:
Cephalopoda; aquatic organisms; chemistry; copper; ecology; eggs; lead; physiological response; stable isotopes; zinc; Taiwan
Abstract:
... The use of mass-marking techniques of enriched stable isotopes has increased in studies of ecology, movement patterns and the dispersal of marine organisms. However, the efficacy of this technique and its potential effects on hatchling size and statolith chemistry of cephalopods are yet to be investigated. Sepioteuthis lessoniana egg capsules were collected from northern Taiwan and assigned random ...
DOI:
10.1071/MF18325

46. Reproductive biology of Macrobrachium amazonicum (Heller, 1862) populations with distinct phenotypes in Neotropical reservoirs during the ‘El Niño’ event

Author:
Lucas R. P. Paschoal; Leo J. F. de Oliveira; Guilherme C. Andrioli; Fernando J. Zara
Source:
Marine & freshwater research 2019 v.70 no.10 pp. 1465-1479
ISSN:
1323-1650
Subject:
Macrobrachium; Neotropics; eggs; fecundity; females; habitat preferences; incipient speciation; intrinsic factors; macrophytes; phenotype; reproductive performance; water reservoirs
Abstract:
... Here, we investigated the reproductive biology (frequency and distribution patterns of ovigerous females, fecundity, reproductive output and egg size and volume) of Macrobrachium amazonicum in four populations living in Neotropical reservoirs, so as to verify whether this process was affected by the 2014–2016 ‘El Niño’ event. The following two phenotypes were identified: in two populations, small- ...
DOI:
10.1071/MF18228

47. Tolerable ranges of fluid shear for early life-stage fishes: implications for safe fish passage at hydropower and irrigation infrastructure

Author:
Anna Navarro; Craig A. Boys; Wayne Robinson; Lee J. Baumgartner; Brett Miller; Zhiqun D. Deng; C. Max Finlayson
Source:
Marine & freshwater research 2019 v.70 no.11 pp. 1503-1512
ISSN:
1323-1650
Subject:
Maccullochella peelii peelii; Macquaria ambigua; deformation; eggs; fish larvae; guidelines; hydraulic flumes; infrastructure; irrigation; juveniles; metamorphosis; mortality; perch; rivers; water power; Australia
Abstract:
... Egg and larval fish drifting downstream are likely to encounter river infrastructure leading to mortality. Elevated fluid shear is one likely cause. To confirm this and determine tolerable strain rates resulting from fluid shear, egg and larvae of three Australian species were exposed to a high-velocity, submerged jet in a laboratory flume. Mortality was modelled over a broad range of strain rates ...
DOI:
10.1071/MF18131

48. Variability in egg and jelly-coat size and their contribution to target size for spermatozoa: a review for the Echinodermata

Author:
Dione J. Deaker; Shawna A. Foo; Maria Byrne
Source:
Marine & freshwater research 2019 v.70 no.7 pp. 995-1006
ISSN:
1323-1650
Subject:
Echinoidea; aquatic invertebrates; eggs; females; maternal effect; models; progeny; spermatozoa
Abstract:
... Fertilisation and development in broadcast-spawning marine invertebrates depends on the ability of the egg to attract spermatozoa and provision progeny. Echinoderm eggs have a jelly coat that facilitates sperm–egg collisions. We investigated variation in egg volume and target area for spermatozoa provided by the jelly coat within and between three sea urchin species (Heliocidaris erythrogramma, He ...
DOI:
10.1071/MF18134

49. Food source as a factor determining birds’ exposure to hazardous organic pollutants and egg contamination

Author:
Andrzej R. Reindl; Lucyna Falkowska
Source:
Marine & freshwater research 2020 v.71 no.4 pp. 557-568
ISSN:
1323-1650
Subject:
Larus argentatus; Thalasseus sandvicensis; aquatic environment; birds; coasts; dams (hydrology); egg contamination; eggs; fish; furans; hexabromocyclododecane; isomers; lipids; monitoring; pollutants; pollution; polychlorinated biphenyls; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; rivers; wildlife; Poland
Abstract:
... Alimentary exposure is the main factor determining halogenated organic compound pollution of wildlife, with birds’ eggs recognised as bioindicators of these contaminants and often used as a non-invasive monitoring tool. Comparisons of bird species from two aquatic environments, namely a marine coastal area (Gdansk Bay) and an inland reservoir (Włocławek Dam on the Vistula River), indicated signifi ...
DOI:
10.1071/MF19159

50. Predation on eggs of the apple snail Pomacea dolioides (Reeve, 1856) in rural and urban areas of the Amazon

Author:
Aldeiza M. Fonseca; Bruno S. Sant’Anna
Source:
Marine & freshwater research 2020 v.71 no.6 pp. 662-669
ISSN:
1323-1650
Subject:
Crematogaster; Pomacea; Solenopsis invicta; Wasmannia; egg masses; eggs; predation; predators; rural areas; urban areas; Brazil
Abstract:
... This study investigated the predation of eggs of the apple snail Pomacea dolioides in Itacoatiara, Amazonas, Brazil. Predation was compared between rural and urban areas, period of day, shaded and unshaded clutches. In addition, we evaluated clutch height and the behaviour of predators. Between April 2017 and July 2018, 962 egg clutches were observed at different times of the day: 492 in rural are ...
DOI:
10.1071/MF19095

51. Temperature dependency equation for chub mackerel (Scomber japonicus) identified by a laboratory rearing experiment and microscale analysis

Author:
Masahiro Nakamura; Michio Yoneda; Toyoho Ishimura; Kotaro Shirai; Masaki Tamamura; Kozue Nishida
Source:
Marine & freshwater research 2020 v.71 no.10 pp. 1384-1389
ISSN:
1323-1650
Subject:
Scomber japonicus; eggs; equations; juveniles; laboratory rearing; otoliths; oxygen; oxygen isotopes; resource management; seawater; stable isotopes; standard deviation; water temperature
Abstract:
... In this study, juveniles of chub mackerel (Scomber japonicus) were reared from eggs in six different temperature treatments, and their otoliths were subjected to micromilling and microvolume stable oxygen isotope (δ18O) analysis. We determined the δ18O values of otoliths (δ18Ootolith) formed at mean temperatures of 16.3, 17.6, 18.3, 20.0, 24.0 and 26.5°C and identified a linear relationship betwee ...
DOI:
10.1071/MF19313

52. A compendium of ecological knowledge for restoration of freshwater fishes in Australia’s Murray–Darling Basin

Author:
John D. Koehn; Scott M. Raymond; Ivor Stuart; Charles R. Todd; Stephen R. Balcombe; Brenton P. Zampatti; Heleena Bamford; Brett A. Ingram; Christopher M. Bice; Kate Burndred; Gavin Butler; Lee Baumgartner; Pam Clunie; Iain Ellis; Jamin P. Forbes; Michael Hutchison; Wayne M. Koster; Mark Lintermans; Jarod P. Lyon; Martin Mallen-Cooper; Matthew McLellan; Luke Pearce; Jordi Ryall; Clayton Sharpe; Daniel J. Stoessel; Jason D. Thiem; Zeb Tonkin; Anthony Townsend; Qifeng Ye
Source:
Marine & freshwater research 2020 v.71 no.11 pp. 1391-1463
ISSN:
1323-1650
Subject:
adults; aquatic plants; basins; case studies; eggs; environmental knowledge; freshwater fish; indigenous species; introduced species; juveniles; larvae; life history; lotic systems; refuge habitats; riparian areas; wetlands; Australia
Abstract:
... Many freshwater fishes are imperilled globally, and there is a need for easily accessible, contemporary ecological knowledge to guide management. This compendium contains knowledge collated from over 600 publications and 27 expert workshops to support the restoration of 9 priority native freshwater fish species, representative of the range of life-history strategies and values in south-eastern Aus ...
DOI:
10.1071/MF20127

53. Effects of magnetic fields related to submarine power cables on the behaviour of larval rainbow trout (Oncorhynchus mykiss)

Author:
Magdalena Jakubowska; Martyna Greszkiewicz; Dariusz P. Fey; Zbigniew Otremba; Barbara Urban-Malinga; Eugeniusz Andrulewicz
Source:
Marine & freshwater research 2021 v.72 no.8 pp. 1196-1207
ISSN:
1323-1650
Subject:
Oncorhynchus mykiss; eggs; freshwater; magnetic fields; oxygen consumption; research; stress response
Abstract:
... The aim of this study was to determine the effects of artificial magnetic fields on the behaviour of rainbow trout (Oncorhynchus mykiss) larvae. Individuals (from the eyed egg stage) were exposed to a static magnetic field (SMF) of 10mT or a low-frequency alternating (electromagnetic) field (EMF) of 1mT, whereas larvae in the control treatment were reared under a natural geomagnetic field (GMF). A ...
DOI:
10.1071/MF20236

54. Egg laying and embryo development of Octopus huttoni in response to temperature and season

Author:
Erica M. Y. Donlon; Jean F. McKinnon; Miles D. Lamare
Source:
Marine & freshwater research 2021 v.72 no.5 pp. 638-646
ISSN:
1323-1650
Subject:
Octopodidae; eggs; embryogenesis; food production; freshwater; life history; oviposition; plankton; research; spring; summer; temperature; New Zealand
Abstract:
... Basic life history information, such as reproductive strategy and embryo development, are lacking in many octopus species, including in the New Zealand species Octopus huttoni. Octopus paralarvae are particularly sensitive to changing temperatures; therefore, this study aimed to determine how temperature affects the egg-laying behaviour and embryo development and the implications on O. huttoni par ...
DOI:
10.1071/MF20184

55. Shape variation of the prawn Macrobrachium jelskii (Palaemonidae: Decapoda) in the Neotropical semiarid drainages: an intra- and inter-basin investigation

Author:
Sávio A. S. N. Moraes; Carlos E. R. D. Alencar; Sergio M. Q. Lima; Fúlvio A. M. Freire
Source:
Marine & freshwater research 2021 v.72 no.1 pp. 84-98
ISSN:
1323-1650
Subject:
Macrobrachium; Neotropics; abdomen; basins; cephalothorax; eggs; environmental factors; females; freshwater; geographical isolation; gonads; hydrodynamics; literature; males; morphometry; occurrence; phenotypic plasticity; population; research; sexual dimorphism; shape; shrimp; vitellogenesis
Abstract:
... The present study aims to show the intra- and inter-basin body-shape variations of the freshwater prawn Macrobrachium jelskii (Miers, 1877) in Brazilian Neotropical semiarid basins, quantifying relations to address if its occurrence is old and natural or recent and artificial (anthropic). We used a geometric-morphometric tool to explore patterns of shape variation of the cephalothorax, abdomen and ...
DOI:
10.1071/MF19201

56. Spatial variation of ostracod (Crustacea, Ostracoda) egg banks in temporary lakes of a tropical flood plain

Author:
Jonathan Rosa; Ramiro de Campos; Koen Martens; Janet Higuti
Source:
Marine & freshwater research 2021 v.72 no.1 pp. 26-34
ISSN:
1323-1650
Subject:
Ostracoda; aquatic communities; ecosystems; eggs; exhibitions; floodplains; freshwater; hatching; homogenization; lakes; ovens; research; rivers; sampling; sediments; spatial variation; species diversity
Abstract:
... Ostracods are microcrustaceans that produce resting eggs under adverse conditions. In this study we evaluated the spatial variation of ostracod resting eggs in different regions of temporary lakes in a Brazilian flood plain. Based on the homogenisation effect of flood pulses on aquatic communities in flood plains, we hypothesised that the composition and abundance of ostracod eggs in the centre of ...
DOI:
10.1071/MF19081

57. The influence of landscape-level factors on the abundance and diversity of diapausing wetland (lagoon) microinvertebrates

Author:
I. Growns; L. Frost; J. T. Hunter; S. Mika
Source:
Marine & freshwater research 2021 v.72 no.5 pp. 738-743
ISSN:
1323-1650
Subject:
altitude; carbon; diapause; eggs; fish; freshwater; landscapes; latitude; longitude; microinvertebrates; research; soil; water birds; wetlands
Abstract:
... Temporary wetlands are some of the most productive ecosystems available to aquatic and terrestrial organisms. Invertebrates play a critical role in wetlands linking aquatic and terrestrial carbon sources to higher trophic levels such as fish and waterbirds. We assessed the role of large-scale landscape variables (including altitude, longitude and latitude) and wetland size and on the egg-bank stru ...
DOI:
10.1071/MF20171

58. Distribution of adult fish and spawning nests of estuarine-dependent amphidromous goby (Gymnogobius petschiliensis) in two streams of central Japan

Author:
Yumeki Oto
Source:
Marine & freshwater research 2022 v.73 no.1 pp. 81-91
ISSN:
1323-1650
Subject:
Gymnogobius; Japan; adults; brackish water; eggs; evolution; fish; freshwater; habitat preferences; intraspecific competition; larvae; predation; research; risk; salinity
Abstract:
... Adults of the marine-originated amphidromous goby (Gymnogobius petschiliensis) inhabit both freshwater and brackish-water areas, unlike many other amphidromous species, which spend their entire lives, except the larval stage, in freshwater. Furthermore, adult G. petschiliensis individuals incur higher osmoregulatory costs in freshwater than those in hypertonic brackish water under laboratory condi ...
DOI:
10.1071/MF21181