Results 161 to 170 of about 28,986 (305)

Habitat associations of freshwater sawfish (Pristis microdon) and Northern River sharks (Glyphis sp. C): including genetic analysis of P. microdon across northern Australia

, 2008
This study investigated the ecology, morphology, habitat utilisation and population genetics of the vulnerable (Environment Protection and Biodiversity Conservation Act (EPBC) 1999) or critically endangered (IUCN) Freshwater Sawfish (Pristis microdon ...
Thorburn, D.C., Peverell, S.C., Chaplin, J.A., Whitty, J.M., Morgan, D.L., Phillips, N.M.   +5 more
core  

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

Journal 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, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

Basking sharks overlap with primary and secondary deep scattering layers during overwintering migration in the Northwest Atlantic Ocean. [PDF]

PLoS One
Elcock JN, Arostegui MC, McDonnell LH, Klöcker CA, Skomal GB, Thorrold SR, Braun CD.   +6 more
europepmc   +1 more source

Mr. Goldschmidt with sharks

, 1975
Mr Goldschmidt poses while showing the teeth of one of the sharks that he ...

core  

‘It's not much, but it's honest work’: The status of environmental DNA analyses of fish biodiversity in southern Africa

Journal of Fish Biology, EarlyView.
Abstract Environmental DNA (eDNA) biodiversity surveys have the power to transform the detection of species in natural environments, which is crucial for the conservation and management of freshwater, estuarine and marine environments. Globally, eDNA‐based analyses have increased significantly, with fishes being the most widely studied aquatic ...
Sophie von der Heyden
wiley   +1 more source

Ontogenetic shifts in morphology and ecology of eastern Pacific white sharks revealed by computer vision. [PDF]

PLoS One
DiGiacomo AE, Andrzejaczek S, Block BA.
europepmc   +1 more source

Hidden partnerships in the dark: Cold‐water coral–fish associations in Fiordland, New Zealand

Journal of Fish Biology, EarlyView.
Abstract The ichthyofauna of the Fiordland ecosystems of southern Aotearoa New Zealand was documented during four remotely operating vehicle (ROV) dives between 100 and 350 m depth. A total of 26 fish species were documented within two fiord basins.
Alexander H. Knorrn, Peter Marriott, Kareen Schnabel, André Freiwald   +3 more
wiley   +1 more source

Catchability Pattern of Cartilaginous Fishes with an Updated Their Diversity and Distribution Along the Egypt's Mediterranean Coast: Conservation and Bycatch Challenges. [PDF]

Animals (Basel)
Farrag MMS, Adel M, El-Geddawy MMA, Serena F.   +3 more
europepmc   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

Journal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima, Aline. N. Poscai, Laura F. Mianutti, Nathalie. M. R. de Abreu, Jade Medeiros, Marcus V. G. Araújo, Frederico. B. de Sousa, João Paulo C. B. da Silva   +7 more
wiley   +1 more source

Environmental and Protection Effects of Shark-Companion Associations Across Three Ocean Basins. [PDF]

Ecol Evol
Walker JK, Meeuwig JJ, Thompson CDH.
europepmc   +1 more source