Results 51 to 60 of about 666 (141)

New deep water skates of the genusNotorajaIshiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific [PDF]

open access: yesZoosystema, 2012
Four new skates of the genus Notoraja Ishiyama, 1958 are described from the rarely accessed, deep waters off New Caledonia, Vanuatu and Fiji islands, and the Norfolk Ridge. Three of these (N. alisae n. sp., N. longiventralis n. sp. and N. fijiensis n. sp.) are “velcro skates” which are characterised by their velvety dorsal and ventral surfaces, covered
Bernard Séret, Peter R. Last
openaire   +1 more source

Occurrence of an Intersexual Blacktip Shark in the Northern Gulf of Mexico, with Notes on the Standardization of Classifications for This Condition in Elasmobranchs [PDF]

open access: yes, 2013
An intersexual Blacktip Shark Carcharhinus limbatus with a testis, immature female reproductive tracts (embedded), and claspers was caught in the Gulf of Mexico.
Angela M. Cicia   +33 more
core   +2 more sources

A Taxonomic Revision of Eastern North Pacific Softnose Skates (Arhynchobatidae: Bathyraja Ishiyama) [PDF]

open access: yes, 2017
Softnose skates (Rajiformes: Arhynchobatidae: Bathyraja Ishiyama) are the most diverse genus of skates, with 54 described species, and are readily distinguishable from their congeners by their relatively uncalcified and flexible rostral cartilages.
Knuckey, James Desmond Stanley
core   +1 more source

Stingray Behaviour and Habitat Use in Response to Sharks in Caribbean Coral Reef Ecosystems [PDF]

open access: yes, 2023
Shark declines may cause trophic cascades, which is partially dependent on how sharks influence prey abundance and behaviour. Rays are mesopredators that play a unique role in ecosystems as bioturbators. My dissertation investigates whether sharks induce
Flowers, Kathryn I.
core   +1 more source

De bijvangst van elasmobranchen in de Nederlandse demersale visserij: deskstudy in het kader van bestek 6b [PDF]

open access: yes, 2005
In dit rapport wordt een overzicht gegeven van de haaien en roggen die voorkomen in de Noordzee. Daarnaast wordt de samenstelling van de aanvoer van roggen door Nederlandse boomkorkotters beschreven en de toestand van de bestanden van de belangrijkste ...
Heessen, H.J.L.
core   +1 more source

Atypical characteristics in the longnosed skate Dipturus oxyrinchus (Linnaeus, 1758) from the coast of Syria (Eastern Mediterranean) [PDF]

open access: yes, 2015
EnA specimen of sharpnosed skate Dipturus oxyrinchus (Linnaeus, 1758) presenting snout and tail abnormalities was captured off the Syrian coast. It is an adult female with a shortened and rounded snout, lack of second dorsal fin and a reduced and rounded
Ali, M.   +4 more
core   +2 more sources

Predation and epibiosis on egg capsules of the Shorttail fanskate, Sympterygia brevicaudata: Depredación y epibiosis sobre cápsulas de la Raya de cola corta, Sympterygia brevicaudata [PDF]

open access: yes, 2022
After deposition, chondrichthyan egg capsules are frequently exposed to numerous threats that affect their survival. However, the ecological factors affecting the development and survival of embryos inside egg capsules remain unclear.
Concha, Francisco   +4 more
core   +1 more source

Highly migratory shark fisheries research by the National Shark Research Consortium (NSRC), 2002-2007 [PDF]

open access: yes, 2007
The National Shark Research Consortium (NSRC) includes the Center for Shark Research at Mote Marine Laboratory, the Pacific Shark Research Center at Moss Landing Marine Laboratories, the Shark Research Program at the Virginia Institute of Marine Science,
Burgess, George H.   +4 more
core  

Nicho abiótico e efeitos do aquecimento global em Riorajini (Rajiformes, Arhynchobatidae), raias do Atlântico Sudoeste [PDF]

open access: yes, 2020
The abiotic niche of species tells part of their ecological and evolutionary history, as well as helps to identify groups that are more susceptible to extinction in a context of a rapidly changing climate.
Coelho, Jéssica Fernanda Ramos
core  

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