Results 81 to 90 of about 14,511 (238)
Journal of Fish Biology, EarlyView.Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres +5 more
wiley +1 more source
Analysis of permanent magnets as elasmobranch bycatch reduction devices in hook-and-line and longline trials [PDF]
, 2011 Previous studies indicate that elasmobranch fishes (sharks, skates and rays) detect the Earth’s geomagnetic field by indirect magnetoreception through electromagnetic induction, using their ampullae of Lorenzini. Applying this concept, we evaluated the
Abel, Daniel C. +3 more
core
Colonization of the deep sea by fishes [PDF]
, 2013 Peer ...
Froese, R, Priede, I G
core +1 more source
Journal of Fish Biology, EarlyView.Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Andrea Parmegiani +7 more
wiley +1 more source
Elasmobranchs small-scale fishery in Guatemala: Socioeconomic aspects and value chain structure
Social Sciences and Humanities OpenSmall-scale fishing (SSF) stands as a cornerstone of economic activity along Guatemala's coastlines. Fisheries products, including those derived from elasmobranchs, serve as vital sources of income for fishers and dealers.
María de los Angeles Rosales-Melgar +5 more
doaj +1 more source
Ecology and Evolution, 2023 Based on an explorative but rigorous elicitation framework, we obtained the bycatch fishing probability at the fishing fleet segment level using expert estimates.
Umberto Scacco +2 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract This study reports three cases of pigmentation disorders in Squalus acanthias from the Gulf of Venice. Two specimens exhibited spotless phenotypes, whereas one exhibited hypermelanism. Morphological assessments were conducted for two individuals, alongside genetic analysis of mitochondrial genes to determine phylogeographic relationships. Both
Jacopo Bernardi +5 more
wiley +1 more source
Artisanal elasmobranch fisheries of northwestern Baja California, Mexico
Ciencias Marinas, 2020 Elasmobranch species composition and spatiotemporal variability can often be characterized from landing surveys of local fisheries, with important management implications. In the present study, we describe the elasmobranch landing composition of 4 major
Omar Santana-Morales +5 more
doaj +1 more source
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 +7 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract Sex is an important driver of variation in behaviour, ecology and physiology. Sex identification in the Critically Endangered European eel (Anguilla anguilla) currently requires fish sacrifice, or the use of morphological differences such as body length, which can be inaccurate in certain habitats and at intermediate body lengths.
Michael J. Williamson +12 more
wiley +1 more source