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: Subject Cyprinidae Remove constraint Subject: Cyprinidae Subject term females Remove constraint Subject term: females
Start Over

Search

37  Search Results

« Previous | 1 - 20 of 37 |
Number of results to display per page

Search Results

1. Ovulation induction in nase (Chondrostoma nasus, Cyprinidae) using pituitary extract or GnRH analogue combined with domperidone

Author:
Szabo, T.; Medgyasszay, C.; Horvath, L.
Source:
Aquaculture 2002 no.3/4 pp. 389-395
ISSN:
0044-8486
Subject:
Cyprinidae; ovulation; gonadotropin-releasing hormone; streams; spawning; ova; weight; mass; body weight; females
Abstract:
... Changes to the natural character of European streams as a result of human activities was followed by the dramatic decrease of nase (Chondrostoma nasus, Cyprinidae) populations. Techniques of induced spawning would help culturists to increase hatchery production and supplement insufficient natural reproduction. Spawning experiments showed that the mean ovulation index (weight of stripped egg mass x ...

2. Seasonal Diets of Male and Female Double-crested Cormorants from an Oxbow Lake in Arkansas, USA

Author:
Fenech, Amy S.; Lochmann, Steve E.; Radomski, Andrew A.
Source:
Waterbirds 2004 v.27 no.2 pp. 170-176
ISSN:
1938-5390
Subject:
Phalacrocorax auritus; wildlife food habits; feeding preferences; freshwater fish; Morone mississippiensis; Ictalurus punctatus; Dorosoma cepedianum; Cyprinidae; gender differences; males; females; seasonal variation; lakes; Arkansas
Abstract:
... Diets were examined and analyzed for 418 wintering Double-crested Cormorants (Phalacrocorax auritus) collected from January to mid-April 2001 and October to December 2001 at an oxbow lake in southeast Arkansas. The fish community was also sampled to examine prey availability. Gizzard Shad (Dorosoma cepedianum) and Yellow Bass (Morone mississippiensis) were the most important species in cormorant d ...
Handle:
10113/44081
DOI:
10.1675/1524-4695(2004)027[0170:SDOMAF]2.0.CO;2

3. Induction of gynogenesis in endangered sarpunti, Puntius sarana (Hamilton) and evidence for female homogamety

Author:
Chakraborty, B.K.; Miah, M.I.; Mirja, M.J.A.; Habib, M.A.B.
Source:
Aquaculture 2006 v.258 no.1-4 pp. 312-320
ISSN:
0044-8486
Subject:
fish culture; fish eggs; Cyprinidae; fertilization (reproduction); gynogenesis; hatching; mortality; meiosis; females
Abstract:
... The experiment was conducted to optimize a procedure of gynogenesis induction in Puntius sarana by suppressing meiotic cell division in fertilized eggs. Gynogenesis was induced by fertilizing normal eggs with genetically inactivated sperm followed by heat shocking. The sperm were inactivated by exposing them to a UV dose of 250 mu W cm- 2 for 2 min at a concentration of 1 x 10(8) sperm/ml. Seven d ...
DOI:
10.1016/j.aquaculture.2006.03.037

4. Estrogen-like properties of perfluorooctanoic acid as revealed by expressing hepatic estrogen-responsive genes in rare minnows (Gobiocypris rarus)

Author:
Wei, Y.; Dai, J.; Liu, M.; Wang, J.; Xu, M.; Zha, J.; Wang, Z.
Source:
Environmental toxicology and chemistry 2007 v.26 no.11 pp. 2440-2447
ISSN:
0730-7268
Subject:
freshwater fish; estrogenic properties; receptors; adults; testicular development; males; gene expression; minnows; enzyme-linked immunosorbent assay; vitellogenin; testes; females; environmental exposure; water pollution; messenger RNA; endocrine-disrupting chemicals; Cyprinidae; pollutants; oocytes; histopathology; microscopy; protein synthesis; liver; reverse transcriptase polymerase chain reaction; estrogens
DOI:
10.1897/07-008R1.1
PubMed:
17941737

5. Gonadal maturity in vimba (Vimba vimba L.) raised in carp ponds

Author:
Łuszczek-Trojnar, E.; Drąg-Kozak, E.; Kleszcz, M.; Popek, W.; Epler, P.
Source:
Journal of applied ichthyology 2008 v.24 no.3 pp. 316-320
ISSN:
0175-8659
Subject:
Cyprinidae; carp; females; fish culture; fish ponds; hatcheries; histology; males; maturity stage; oocytes; probability; rivers; spawning; spermatogonia; testes; Poland
Abstract:
... The aim of the study was to determine gonadal maturity in male and female vimba after induced spawning in the years 2001 throughout 2004, based on spawners derived from an anadromous population obtained from the Barycz River. For these 4 years, fry derived from each successive spawning were raised in carp ponds at the Experimental Hatchery Centre of the Polish Angling Association in Szczodre, Pola ...
DOI:
10.1111/j.1439-0426.2008.01057.x

6. Estrogenic Compounds Downstream From Three Small Cities in Eastern Nebraska: Occurrence and Biological Effect

Author:
Sellin, Marlo K.; Snow, Daniel D.; Kolok, Alan S.
Source:
Journal of the American Water Resources Association 2009 v.45 no.1 pp. 14-21
ISSN:
1093-474X
Subject:
wastewater treatment; freshwater fish; mass spectrometry; estradiol; liquid chromatography; males; estrone; minnows; gene expression; cities; vitellogenin; surface water; females; water pollution; endocrine-disrupting chemicals; messenger RNA; Cyprinidae; liver; fish cages; Nebraska
Abstract:
... Recent studies have detected estrogenic compounds in surface waters in North America and Europe. Furthermore, the presence of estrogenic compounds in surface waters has been attributed, in some cases, to the discharge of wastewater treatment plant (WWTP) effluent. The primary objective of the current study was to determine if WWTP effluent contributes estrogens to the surface waters of Nebraska. A ...

7. Reproductive isolation and the expansion of an invasive hybrid swarm

Author:
Blum, Michael J.; Walters, David M.; Burkhead, Noel M.; Freeman, Byron J.; Porter, Brady A.
Source:
Biological invasions 2010 v.12 no.8 pp. 2825-2836
ISSN:
1387-3547
Subject:
fertilization (reproduction); Cyprinidae; freshwater fish; interspecific hybridization; hybrids; genetic variation; gene flow; zygote; reproductive isolation; invasive species; ecological invasion; viability; females; males; gender differences; fecundity; egg hatchability; larvae; mortality; heterosis; Georgia; Tennessee
Abstract:
... Biological invasions involving hybridization proceed according to prezygotic and postzygotic reproductive isolating mechanisms. Yet few comparisons of reproductive isolation have been carried out to understand how different mechanisms prevent or promote invasions involving hybridization. Here we present a study of prezygotic and postzygotic isolation between non-native red shiner (Cyprinella lutre ...
DOI:
10.1007/s10530-010-9688-9

8. Length‐weight relationship of freshwater fish, Puntius shalynius Yazdani and Talukdar (Cypriniformes: Cyprinidae), in Meghalaya, India

Author:
M. Manorama; S. N. Ramanujam
Source:
Journal of applied ichthyology 2011 v.27 no.6 pp. 1404-1405
ISSN:
0175-8659
Subject:
Cyprinidae; females; freshwater fish; males; rivers; India
Abstract:
... The present investigation gives the length‐weight relationship (LWR) of Puntius shalynius in Meghalaya, India. The samples for the study were collected from Umiam river. The value of the exponent ‘b’ in the LWR was less than 3, with 0.885 for males and 1.616 in females. This shows that the species exhibit allometric growth pattern. There was no difference in LWR between sexes and seasons. ...
DOI:
10.1111/j.1439-0426.2011.01785.x

9. Morphometric differences among populations of Tu'ini, Capoeta damascina (Teleostei: Cyprinidae), in the interior basins of Iran

Author:
Samaee, S.-M.; Patzner, R.A.
Source:
Journal of applied ichthyology 2011 v.27 no.3 pp. 928-933
ISSN:
0175-8659
Subject:
Cyprinidae; basins; discriminant analysis; eyes; females; fish; head; males; peduncle; rivers; Iran
Abstract:
... Tu'ini, Capoeta damascina, is a widespread species in the interior basins of Iran. To examine the morphometric variations residing within the taxon, six isolated river systems from the west, south, southwest, and centre of Iran were investigated: Ghárásu, Hánnã, Bãzoft, Eghlid, Ãbãdeh, and Gãmãsiyãb. A total of 240 adult fish specimens ≥180 mm standard length (females: 180-336; males: 186-304) wer ...
DOI:
10.1111/j.1439-0426.2010.01587.x

10. Size and structure of a new lake minnow, Eupallasella percnurus (Pall.), population established through translocations

Author:
Justyna Sikorska; Jacek Wolnicki; Rafał Kamiński
Source:
Archiwum rybactwa polskiego = 2011 v.19 no.3 pp. 195-200
ISSN:
2083-6139
Subject:
Cyprinidae; females; juveniles; lakes; males; minnows; peat; population size; surface water; villages; Poland
Abstract:
... In July and August 2010, the Lincoln-Petersen capture-recapture method was used to assess the size and basic structure of a newly established population of the endangered in Poland cyprinid fish lake minnow, Eupallasella percnurus (Pall). The population that inhabits a small (0.08 ha) peat excavation site in the village of Kowalicha near Radzymin (Mazowieckie Voivodeship, Poland) was initiated in ...
DOI:
10.2478/v10086-011-0024-5

11. Age, growth rate and size at sexual maturity of Labeobarbus aeneus (Teleostei: Cyprinidae) in the middle Vaal River, South Africa

Author:
R Gerber; NJ Smit; GM Wagenaar
Source:
African journal of aquatic science 2012 v.37 no.1 pp. 49-58
ISSN:
1727-9364
Subject:
Cyprinidae; age structure; females; fish; males; otoliths; rivers; sexual maturity; sport fishing; South Africa
Abstract:
... Age structure, growth and size at sexual maturity of smallmouth yellowfish, Labeobarbus aeneus (Burchell), were assessed in 2008–2009. Despite its angling and food importance, little has been published on many aspects of its ecology and biology, specifically its age structure in the Vaal River system. Of 193 L. aeneus collected by gillnetting, 96 were assessed for sexual maturity, and ages were es ...
DOI:
10.2989/16085914.2012.666337

12. Life-history strategies of Acrossocheilus fasciatus (Barbinae, Cyprinidae) in the Huishui Stream of the Qingyi watershed, China

Author:
Yun-zhi Yan; Ren Zhu; Shan He; Ling Chu; Yang-yang Liang; Yi-feng Chen
Source:
Ichthyological research 2012 v.59 no.3 pp. 202-211
ISSN:
1341-8998
Subject:
Cyprinidae; age determination; animal growth; body size; eggs; fecundity; females; fish; gender differences; gonadosomatic index; life history; males; sexual dimorphism; spatial variation; streams; watersheds; China
Abstract:
... Life-history traits of Acrossocheilus fasciatus were examined using 384 specimens collected monthly during May 2009 and April 2010 in the Huishui Stream of the Qingyi watershed, China. Using scales for age determination, female and male fish comprised five and four age groups, respectively. The monthly changes in marginal increment ratio suggested that annuli on scales were formed during March thr ...
DOI:
10.1007/s10228-012-0271-5

13. Winter Diet of River Otters in Kentucky

Author:
Barding Erin E.; Lacki Michael J.
Source:
Northeastern naturalist 2012 v.19 no.2 pp. 157-164
ISSN:
1092-6194
Subject:
Ambloplites; Catostomidae; Clupeidae; Cyprinidae; Lepomis; Lontra canadensis; Micropterus; Pomoxis; adults; crayfish; diet; ecosystems; females; fish; juveniles; males; trapping; Kentucky
Abstract:
... Lontra canadensis (River Otter) have been reintroduced throughout much of their former range in North America, but our understanding of the function they serve in ecosystems to which they have been reintroduced remains incomplete. We examined the winter diet of reintroduced River Otters in Kentucky based on contents of 126 stomachs collected over three trapping seasons, 2006–2009. Fish and crayfis ...
DOI:
10.1656/045.019.0202

14. Evolution of mating systems and sexual size dimorphism in North American cyprinids

Author:
M. Pyron; T. E. Pitcher; S. J. Jacquemin
Source:
Behavioral ecology and sociobiology 2013 v.67 no.5 pp. 747-756
ISSN:
0340-5443
Subject:
Cyprinidae; body size; dimorphism; females; fish; males; mating systems; models; phylogeny; spawning; sperm competition; testes
Abstract:
... Mating systems evolve with sexual size dimorphism (SSD) in many animals. Mating systems with males larger than females occur when males compete for female access or guard territories, while mating systems with group mating tend to occur in species where females are the same size or larger than males. In addition to variation in SSD with mating system, sperm competition varies among mating systems ...
DOI:
10.1007/s00265-013-1498-5

15. Reduced growth and reproductive investment of Hemiculter leucisculus (Cyprinidae) in a reservoir with introduced icefish Neosalanx taihuensis (Salangidae)

Author:
Xinglu Wang; Jianguo Xiang; Jiashou Liu; Ming Liu; Lang Wu; Brian R. Murphy; Songguang Xie
Source:
Environmental biology of fishes 2013 v.96 no.7 pp. 895-903
ISSN:
0378-1909
Subject:
Cyprinidae; body weight; egg weight; fauna; females; fish; fisheries; gonads; indigenous species; males; population dynamics
Abstract:
... Neosalanx taihuensis is an important zooplanktivorous commercial fish that has been widely introduced into Chinese freshwaters. Introduction of this species has induced decline and even extinction of native fish species in some waters. In this study, impacts of N. taihuensis introduction on growth and reproductive characteristics of an indigenous zooplanktivorous fish Hemiculter leucisculus were i ...
DOI:
10.1007/s10641-012-0085-3

16. Evidence for lacustrine breeding by sanjika Opsaridium microcephalum (Teleostei: Cyprinidae) in Lake Malawi

Author:
D Tweddle; GF Turner
Source:
African journal of aquatic science 2014 v.39 no.4 pp. 479-480
ISSN:
1727-9364
Subject:
Cyprinidae; breeding; courtship; dry season; females; lakes; males; rivers; spawning; streams; watersheds; Lake Malawi
Abstract:
... Three species of Opsaridium occur in the Lake Malawi catchment. The kabyabya Opsaridium tweddleorum is a small species restricted to inflowing rivers and streams, the mpasa Opsaridium microlepis is a large lake-dwelling species that ascends the lower reaches of inflowing rivers during the rains to spawn, and the sanjika Opsaridium microcephalum has riverine, potamodromous and lake spawning populat ...
DOI:
10.2989/16085914.2014.982499

17. Male red coloration, female mate preference, and sperm longevity in the cyprinid fish Puntius titteya

Author:
Shoko Fukuda; Kenji Karino
Source:
Environmental biology of fishes 2014 v.97 no.11 pp. 1197-1205
ISSN:
0378-1909
Subject:
Cyprinidae; color; eggs; females; fish; genes; longevity; males; mating behavior; progeny; spermatozoa
Abstract:
... In recent decades, the link between the exaggeration of male sexual ornaments and ejaculate quality has received much attention. When males with conspicuous sexual ornaments have high-quality ejaculate, females are believed to obtain benefits, such as high fertilization success and offspring with good genes, by choosing mates on the basis of male ornamentation. In this study, we examined the relat ...
DOI:
10.1007/s10641-013-0207-6

18. Population Demographics and Life History of the Round Hickorynut (Obovaria subrotunda) in the Duck River, Tennessee

Author:
Ehlo Chase A; Layzer James B
Source:
American midland naturalist 2014 v.171 no.1 pp. 1-15
ISSN:
0003-0031
Subject:
Cottus carolinae; Cyprinidae; Etheostoma blennioides; adults; demographic statistics; fecundity; females; fish; gills; hosts; juveniles; life history; males; mussels; population structure; rivers; sexual maturity; spawning; summer; Tennessee
Abstract:
... Population characteristics and life history aspects of healthy mussel populations are poorly understood. The reproductive cycle, age and growth, and population structure of Obovaria subrotunda were examined at four sites in the middle Duck River, Tennessee. Obovaria subrotunda was confirmed to be a bradytictic species, spawning in the late summer and holding glochidia in the gills for 11 mo until ...
DOI:
10.1674/0003-0031-171.1.1

19. Spawning behaviour of a threatened Iberian cyprinid and its implications for conservation

Author:
C. Sousa-Santos; J. Robalo; V. Almada
Source:
Acta ethologica 2014 v.17 no.2 pp. 99-106
ISSN:
0873-9749
Subject:
Cyprinidae; breeding season; courtship; endangered species; females; males; reproductive behavior; spawning; Iberian Peninsula
Abstract:
... This study presents the first ethological description of the reproductive behaviour of the cyprinid Squalius pyrenaicus, endemic to the Iberian Peninsula. The behavioural pattern of this endangered species during the breeding season is non-communal and includes the preparation of a spawning pit (depressions in the substratum) by males, a behaviour not described for Iberian cyprinids so far but alr ...
DOI:
10.1007/s10211-014-0185-5

20. Age and growth rates of the critically endangered fish Garra ghorensis can inform their conservation management

Author:
Nashat Hamidan; J. Robert Britton
Source:
Aquatic conservation 2015 v.25 no.1 pp. 61-70
ISSN:
1052-7613
Subject:
Cyprinidae; Oreochromis aureus; age structure; air temperature; extinction; females; fish; habitat destruction; habitats; invasive species; life history; longevity; males; spawning; Jordan
Abstract:
... Information on the life‐history traits of threatened fishes can inform their conservation as they can indicate resilience to environmental change and vulnerability to extirpation and extinction. Garra ghorensis, a small (< 140 mm total length) riverine cyprinid fish, endemic to the southern Dead Sea area, is critically endangered through habitat loss and invasive species. There are, however, no da ...
DOI:
10.1002/aqc.2449