Results 101 to 110 of about 16,128 (317)

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

open access: yesJournal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe   +4 more
wiley   +1 more source

Sturgeon Parasites: A Review of Their Diversity and Distribution

open access: yesDiversity
Sturgeon species have inhabited the world’s seas and rivers for more than 200 million years and hold significant taxonomic significance, representing a strong conservation interest in aquatic biodiversity as well as in the economic sector, as their meat ...
György Deák   +3 more
doaj   +1 more source

Effects of acute crude oil exposure on basic physiological functions of Persian sturgeon, Acipenser persicus [PDF]

open access: yes, 2016
Hematological parameters are suitable biomarkers for evaluating the potential risk of the chemicals. The aim of this study was to investigate of acute crude oil exposure on basic physiological functions of Persian sturgeon,Acipenser persicus.
Khoshbavar Rostami, H., Soltani, M.
core   +1 more source

Determinig the Specific Status of the Iberian Sturgeons by Means Genetic Analyses of Old Specimens [PDF]

open access: yes, 2010
To clarify the species status of sturgeon from rivers of the Iberian Peninsula, eight molecular markers (4 nuclear and 4 mitochondrial) have been analysed in different specimens from historical museum samples and prehistoric samples from archaeological ...
Aguayo de Hoyos, Pedro   +12 more
core   +1 more source

The key mechanisms associated with the survival of Gulf toadfish, Opsanus beta, when in severe hypoxia

open access: yesJournal of Fish Biology, EarlyView.
Abstract Florida's shallow seagrass beds experience daily diurnal fluctuations in environmental oxygen, leading to hypoxic episodes (PO2 < 2 mg L−1, ~6 kPa) that have increased in frequency and intensity in recent decades. The native Gulf toadfish (Opsanus beta) have been shown to employ a suite of adaptive cardiovascular, ventilatory and metabolic ...
Anastasiya Plotnikova   +17 more
wiley   +1 more source

Bioaccumulation of heavy metals Cu, Zn, and Hg in muscles and liver of the stellate sturgeon (Acipenser stellatus) in the Caspian Sea and their correlation with growth parameters [PDF]

open access: yes, 2012
Bioaccumulation of Cu, Zn, Hg in muscles and liver tissues of stellate sturgeon (Acipenser stellatus) from the southern Caspian Sea was measured.
Heidary, S.   +2 more
core  

Longest documented coastal migrations of shortnose sturgeon

open access: yesJournal of Fish Biology, EarlyView.
Abstract The shortnose sturgeon (SNS; Acipenser brevirostrum) is a United States federally endangered diadromous species. Although SNS spend much of their time in riverine habitat, inter‐river migrations have been documented in northern populations.
Joseph D. Nolan   +8 more
wiley   +1 more source

Marine recreational fisheries statistics survey for northern and central California, quarterly report no. 13, July to September, 1982 [PDF]

open access: yes, 1988
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September 1982, is presented in a data report format.
Karpov, Konstantin A.   +1 more
core  

Pollock and Sturgeon on defeaters

open access: yesSynthese, 2016
Scott Sturgeon has recently challenged Pollock’s account of undercutting defeaters. The challenge involves three primary contentions: (1) the account is both too strong and too weak, (2) undercutting defeaters exercise their power to defeat only in conjunction with higher-order beliefs about the basis of the lower-order beliefs whose justification they
openaire   +3 more sources

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