Results 181 to 190 of about 10,818 (235)
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Calcium isotopes reveal the trophic position of extant and fossil elasmobranchs
Chemical Geology, 2015Sylvain Adnet +2 more
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Effect of gillnet selectivity on elasmobranchs off the northwestern coast of Mexico
Ocean and Coastal Management, 2019The regulation of mesh size is important for the effective and sustainable management of fisheries using gillnets, which are the main fishing gear used in artisanal elasmobranch fisheries throughout northwestern Mexico.
Sergio Ramírez-Amaro +1 more
semanticscholar +1 more source
Morphological abnormalities in elasmobranchs
Journal of Fish Biology, 2015A total of 10 abnormal free‐swimming (i.e. post‐birth) elasmobranchs are reported from The (Persian–Arabian) Gulf, encompassing five species and including deformed heads, snouts, caudal fins and claspers. The complete absence of pelvic fins in a milk shark Rhizoprionodon acutus may be the first record in any elasmobranch. Possible causes, including the
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Journal of Fish Biology, 2012
The Subclass Elasmobranchii is widely considered nowadays to be the sister group of the Subclass Holocephali, although chimaeroid fishes were originally classified as elasmobranchs along with modern sharks and rays. While this modern systematic treatment provides an accurate reflection of the phylogenetic relationships among extant taxa, the ...
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The Subclass Elasmobranchii is widely considered nowadays to be the sister group of the Subclass Holocephali, although chimaeroid fishes were originally classified as elasmobranchs along with modern sharks and rays. While this modern systematic treatment provides an accurate reflection of the phylogenetic relationships among extant taxa, the ...
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Journal of Experimental Zoology, 1990
Man has been fascinated with elasmobranchs — the sharks, skates and rays — for centuries. The visual sense of these sometimes-dangerous creatures has been much maligned; elasmobranchs have been described as seeing poorly and only at night. Since the last large review on vision in elasmobranchs (Gruber and Cohen, 1978), the field has expanded greatly ...
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Man has been fascinated with elasmobranchs — the sharks, skates and rays — for centuries. The visual sense of these sometimes-dangerous creatures has been much maligned; elasmobranchs have been described as seeing poorly and only at night. Since the last large review on vision in elasmobranchs (Gruber and Cohen, 1978), the field has expanded greatly ...
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A Neurohypophyseal Principle in the Elasmobranch Pituitary
Nature, 1960THE elasmobranch pituitary gland consists of three distinct and largely separate regions (Fig. 1). Two of these, the rostral and ventral lobes, appear to represent the pars anterior of higher vertebrates, while the third, the so-called neurointermediate lobe, consists of intimately interdigitated neural and intermediate tissue1. Scharrer2 has described
A M, PERKS, M H, DODD, J M, DODD
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Reviewing the genetic evidence for sex-biased dispersal in elasmobranchs
Reviews in Fish Biology and Fisheries, 2021N. M. Phillips +3 more
semanticscholar +1 more source
Anatomy and Embryology, 1985
The nephron and collecting ducts of the little skate (Raja erinacea) and spiny dogfish shark (Squalus acanthias) have been investigated by light microscopy of semi-thin sections. Parts of the tubules (collecting ducts and distal segments) were identified after tubular injections with Microfil or carbon.
E R, Lacy, E, Reale
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The nephron and collecting ducts of the little skate (Raja erinacea) and spiny dogfish shark (Squalus acanthias) have been investigated by light microscopy of semi-thin sections. Parts of the tubules (collecting ducts and distal segments) were identified after tubular injections with Microfil or carbon.
E R, Lacy, E, Reale
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Osmoregulation in elasmobranch fish — A review
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007In recent years our understanding of the control of ion and urea metabolism in elasmobranch fish has increased with many more species being investigated. This has demonstrated that some species regarded previously as stenohaline marine are, at least partially, euryhaline and may survive in environments less concentrated than full seawater.
Hazon, N. +5 more
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