Results 31 to 40 of about 1,875 (217)
Abstract Increasing fishing pressure has negatively impacted elasmobranch populations globally. Despite high levels of historical and current fishing pressure, the Bay of Bengal region remains data‐poor. Focusing on Bangladesh, we conducted a socio‐ecological study to characterize elasmobranch fisheries and evaluate their impact on threatened species ...
Alifa Bintha Haque +2 more
wiley +1 more source
Morphological description is given for whitebrow skate Bathyraja minispinosa caught in the northwestern Pacific in 1978–1989, both juveniles and adults. Counts for vertebras, pectoral fin, teeth rows, and intestinal valves are presented.
V. N. Dolganov
doaj +1 more source
Early life sensory ability—ventilatory responses of thornback ray embryos (Raja clavata) to predator-type electric fields [PDF]
Predator avoidance is fundamental for survival and it can be particularly challenging for prey animals if physical movement away from a predatory threat is restricted. Many sharks and rays begin life within an egg capsule that is attached to the sea bed.
Ballard +37 more
core +1 more source
Competition for food could be a major force driving changes in the community structure of skates (Rajidae) subjected to fishing exploitation. Under this hypothesis, small skates are released from competition with larger skates after fishing has depleted ...
Natalia L Ruocco +5 more
doaj +1 more source
Specimens representing two new species of Guidus Ivanov, 2006 were collected from the Magellan skate (Bathyraja magellanica [Philippi]) in the Patagonian Continental Shelf of Argentina, Southwestern Atlantic Ocean. Guidus francoi sp. n.
A. Menoret, V. Ivanov
semanticscholar +1 more source
Reproductive biology of the eyespot skate atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae) an endemic species of the southwestern atlantic ocean (34ºs - 42ºS) [PDF]
Atlantoraja cyclophora is an endemic skate to the continental shelf of the Southwestern Atlantic Ocean (22ºS-47ºS) and a bycatch species in commercial bottom trawl fisheries. The morphometric relationships, the size at maturity and the reproductive cycle
Colonello, Jorge Horacio +3 more
core +3 more sources
On little known deep-sea skate Bathyraja abyssicola (Gilbert, 1896) from the waters of Russia
Morphological description is given for 38 specimens of rare skate Bathyraja abyssicola caught in the North-West Pacific in the 1974-1989, including juveniles and adults of both sexes.
Vladimir N. Dolganov, Talija T. Ginanova
doaj +1 more source
Age and growth of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae) in southern Brazil [PDF]
Age and growth studies are fundamental to successful fisheries management. Zapteryx brevirostris (Muller & Henle, 1841) is distributed off the Brazilian continental shelf and this species is assessed as "Vulnerable" in the Red List of the International ...
Carmo, Wanessa P. D. +2 more
core +4 more sources
Several new species of oviparous skates of the genus Bathyraja have been identified over the past 2 decades, yet it is possible that a complete understanding of species diversity among this group has not been achieved.
I. Spies +6 more
semanticscholar +1 more source
On rare skate Bathyraja bergi Dolganov, 1985 from the waters of Russia with notes on its taxonomy
Morphological description for 12 specimens of skate Bathyraja bergi caught in the North-West Pacific in 1978-2013. Plastic signs and counts for teeth, vertebras, pectoral fin, and intestinal valve are presented.
Vladimir N. Dolganov, Talija T. Ginanova
doaj +1 more source

