Results 21 to 30 of about 3,196 (192)
Dental microwear texture analysis as a tool for dietary discrimination in elasmobranchs
Scientific Reports, 2021 As abundant and widespread predators, elasmobranchs play influential roles in food-web dynamics of marine communities. Clearly, these trophic interactions have significant implications for fisheries management and marine conservation, yet elasmobranch ...
Laura J. McLennan, Mark A. Purnell
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Gill function in an elasmobranch [PDF]
Zeitschrift f�r Vergleichende Physiologie, 1971 Highly efficient oxygen uptake in elasmobranchs, as indicated by frequent excess of PaO2 over PEO2 has previously been ascribed to the operation of multicapillary rather than counter-current gas exchange by the gills. Analysis of models shows that, at maximum efficiency, a multicapillary system cannot account for values of PaO2 greater than (PIO2+PEO2)/
Grigg, GC, Read, J
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Quantitative assessment of inner ear variation in elasmobranchs
Scientific Reports, 2023 Considerable diversity has been documented in most sensory systems of elasmobranchs (sharks, rays, and skates); however, relatively little is known about morphological variation in the auditory system of these fishes.
Derek J. Sauer +3 more
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Journal of Asia-Pacific Biodiversity, 2019 Elasmobranchs are experiencing population declines worldwide because of anthropogenic stressors. Marine protected areas (MPAs) have been shown to benefit mesopredatory species of shark.
Ryan Murray +7 more
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Frontiers in Marine Science, 2023 The present study, based on microsatellite markers, describes a population genetic analysis of the small-spotted catshark Scyliorhinus canicula (Linnaeus, 1758), representing one of the most abundant and commonly caught cartilaginous fishes in the ...
Riccardo Melis +14 more
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Animals, 2021 The age and growth rate of the giant electric ray, Narcine entemedor, was estimated using growth bands deposited in the vertebral centra of 245 specimens.
Pablo Mora-Zamacona +6 more
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Evidence of tide pool use by a viviparous elasmobranch as a parturition site [PDF]
Acta Ichthyologica et Piscatoria, 2019 Despite the frequent occurrence of elasmobranchs in surf zones, the use of tidal pools by these animals is unknown, with only one incidental observation reported in the literature.
N. Wosnick +3 more
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Strengthening Angel Shark Conservation in the Northeastern Mediterranean Sea
Journal of Marine Science and Engineering, 2022 Angel sharks are among the most threatened species of sharks globally. Twenty-two species have been identified globally so far, with three species being present in the Mediterranean Sea: Squatina aculeata, Squatina oculata, and Squatina squatina.
Ioannis Giovos +16 more
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A socio‐psychological approach for understanding and managing bycatch in small‐scale fisheries
People and Nature, 2023 Fisheries bycatch is the greatest threat to migratory, long‐lived marine animals. Addressing bycatch ultimately requires changing fisher behaviour, yet social and behavioural sciences are rarely applied to bycatch mitigation, with an absence of theory ...
Hollie Booth +6 more
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Catch Composition, Seasonality, and Biological Aspects of Sharks Caught in the Ecuadorian Pacific
Diversity, 2022 Although sharks have a fundamental role in maintaining the balance of aquatic ecosystems, exerting a great influence on lower levels of the food chain, their populations are declining worldwide due, to a large extent, to overfishing.
Jesús Briones-Mendoza +2 more
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