Results 21 to 30 of about 21,186 (271)
Swiss Journal of Palaeontology, 2020 Despite today’s controversy regarding several aspects of his legacy, Swiss-born Harvard Professor Louis Agassiz (1807–1873) was one of the most eminent scientists of his time.
Frederik H. Mollen
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Osmoregulation in Elasmobranchs [PDF]
American Zoologist, 1977 Osmoregulatory mechanisms were examined in major groups of fishes including hagfish, holocephalans, elasmobranchs, the coelacanth, and ray-fin fishes. Four main patterns of body fluid composition emerged. These represent the three main osmoregulatory processes in the marine environment and the one in fresh water.
PETER K. T. PANG +2 more
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Scientific Reports, 2020 Understanding how threatened species are distributed in space and time can have direct applications to conservation planning. However, implementing standardized methods to monitor populations of wide-ranging species is often expensive and challenging. In
M. Espinoza +4 more
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Distribution of skates and sharks in the North Sea: 112 years of change [PDF]
, 2016 How have North Sea skate and shark assemblages changed since the early 20th century when bottom trawling became widespread, whilst their environment became increasingly impacted by fishing, climate change, habitat degradation and other anthropogenic ...
Ellis, JR +4 more
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iScience, 2023 Summary: Trade restrictions for endangered elasmobranch species exist to disincentivise their exploitation and curb their declines. However, trade monitoring is challenging due to product variety and the complexity of import/export routes. We investigate
Andhika P. Prasetyo +6 more
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Satellite Remote Sensing in Shark and Ray Ecology, Conservation and Management
Frontiers in Marine Science, 2019 Global elasmobranch populations have declined dramatically over the past 50 years, and continued research into the drivers of their habitats and distributions is vital for improved conservation and management.
Michael J. Williamson +4 more
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Age and growth of Zapteryx brevirostris (Elasmobranchii: Rhinobatidae) in southern Brazil [PDF]
, 2018 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
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Frontiers in Marine Science, 2023 IntroductionLoss of biodiversity in marine ecosystems is a globally acknowledged problem. To address this and avoid extinctions, improved conservation is required to protect and restore our oceans.
Martha O’Keefe +10 more
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Diversity, 2023 The taxonomy of the enigmatic dark-mouth skate, Bathyraja arctowskii (Dollo, 1904), from the Southern Ocean was finally resolved after more than 100 years of ambiguity in 2021.
Simon Weigmann, Thomas Reinecke
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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
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