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You searched for: Journal Marine and freshwater behaviour and physiology Remove constraint Journal: Marine and freshwater behaviour and physiology Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.50 no.4 Remove constraint Source: 2017 v.50 no.4
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1. Acute toxicity of carbon dioxide to juvenile marine shrimp Litopenaeus vannamei (Boone 1931)

Author:
Furtado, Plínio S.; Gaona, Carlos A. P.; Serra, Fabiane P.; Poersch, Luis H.; Wasielesky, Wilson
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 293-301
ISSN:
1029-0362
Subject:
Litopenaeus vannamei; acute toxicity; carbon dioxide; dissolved carbon dioxide; fish; juveniles; lethal concentration 50; mortality; pH; shrimp; transportation
Abstract:
... Elevated concentrations of dissolved carbon dioxide (CO₂) and reduced pH levels are observed during the culture and transportation of aquatic organisms. Studies on the toxicity effects of CO₂ in penaeid shrimp are scarce when compared to the amount of research in fish. The objective of the present study was to determine the lethal concentration and safety levels of CO₂ for juvenile white shrimp Li ...
DOI:
10.1080/10236244.2017.1371568

2. A second site occupied by Octopus tetricus at high densities, with notes on their ecology and behavior

Author:
Scheel, David; Chancellor, Stephanie; Hing, Martin; Lawrence, Matthew; Linquist, Stefan; Godfrey-Smith, Peter
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 285-291
ISSN:
1029-0362
Subject:
Octopodidae; ecology; humans; social behavior
Abstract:
... We report wild octopuses (Octopus tetricus) living at high density at a rock outcrop, the second such site known. O. tetricus are often observed as solitary individuals, with the species known to exist at similar densities and exhibiting complex social behaviors at only one site other than that described here. The present site was occupied by 10–15 octopuses on eight different days. We recorded fr ...
DOI:
10.1080/10236244.2017.1369851

3. Effects of salinity variations on the rates of photosynthesis and respiration of the juvenile giant clam (Tridacna gigas, Bivalvia, Cardiidae)

Author:
Maboloc, Elizaldy A.; Villanueva, Ronald D.
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 273-284
ISSN:
1029-0362
Subject:
Cardiidae; Tridacna gigas; cell respiration; clams; coral reefs; juveniles; mortality; osmotic stress; photosynthesis; salinity; symbiosis
Abstract:
... Giant clams are in symbiotic relationship with the photosynthesizing zooxanthellae and dwell in the shallow coral reefs of the Indo-Pacific region where they may be exposed to fluctuating salinities during high levels of precipitation. This study evaluated the effects of reduced salinities (18, 25, and 35‰ as control) on the rates of photosynthesis and respiration in juvenile Tridacna gigas for 14 ...
DOI:
10.1080/10236244.2017.1386861

4. Linear intermolt growth in Americamysis bahia (Molenock 1969) (Mysida, Mysidae)

Author:
Scarfe, A. David; Steele, Craig W.
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 257-272
ISSN:
1029-0362
Subject:
Mysidae; abdomen; allometry; ecdysis; equations; instars; postlarvae; puberty
Abstract:
... Two phases of allometry, prepubertal, and pubertal, are evident in A. bahia, equally dividing the first six instars. Coefficients of variation of the sizes of individuals’ abdomens, carapaces, and standard lengths significantly decrease in intermolt four, suggesting a synchronization of the size at which individuals enter the pubertal phase. Growth in standard length is best expressed over the fir ...
DOI:
10.1080/10236244.2017.1369075

5. Osmoregulation and muscle water control of the Amazon fish Oscar Astronotus ocellatus (Cichlidae) when facing salinity stress

Author:
Gutierre, Silvia M. M.; Schulte, Jessica M.; Schofield, Pamela J.; Prodocimo, Viviane
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 303-311
ISSN:
1029-0362
Subject:
Astronotus; distress; fish; freshwater; muscles; osmolality; osmoregulation; salinity; salt stress
Abstract:
... Specimens of Oscar Astronotus ocellatus from a fish farm were abruptly submitted to salt stress of 14 ppt and 20 ppt, for 3 and 8 h to determine their plasma osmolality. Muscle wet body mass change in vitro was analyzed from control freshwater animals. Fish in 14 ppt presented no osmolality distress even after 8 h. In 20 ppt, a slight increase (10%) in plasma osmolality was observed for both times ...
DOI:
10.1080/10236244.2017.1387480

6. The effects of thin mud deposits on the behaviour of a deposit-feeding tellinid bivalve: implications for ecosystem functioning

Author:
McCartain, Lisa D.; Townsend, Michael; Thrush, Simon F.; Wethey, David S.; Woodin, Sarah A.; Volkenborn, Nils; Pilditch, Conrad A.
Source:
Marine and freshwater behaviour and physiology 2017 v.50 no.4 pp. 239-255
ISSN:
1029-0362
Subject:
burrows; feeding behavior; hydraulic conductivity; laboratory experimentation; photography; sediments
Abstract:
... A laboratory experiment was conducted, to examine how feeding, siphon activity and movement behaviours of a tellinid bivalve, Macomona liliana (Iredale, 1915), were affected by thin surface layers of mud (1–4 mm) and the incorporation of mud into surface (0–2 cm) sediment. Time-lapse photography and porewater pressure sensors were used to characterise changes in behaviour before and after mud addi ...
DOI:
10.1080/10236244.2017.1364123