Results 151 to 160 of about 3,346 (204)
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Comparative Biochemistry and Physiology A, Comparative Physiology, 1972
Abstract 1. 1. Foreign compounds generally exert effects on elasmobranchs that are qualitatively similar to those they exert in mammals. 2. 2. Certain drugs acting on higher centers of the central nervous system produce little effect in the dogfish. 3. 3.
A M Guarino
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Abstract 1. 1. Foreign compounds generally exert effects on elasmobranchs that are qualitatively similar to those they exert in mammals. 2. 2. Certain drugs acting on higher centers of the central nervous system produce little effect in the dogfish. 3. 3.
A M Guarino
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Electrophysiology of the Elasmobranch Stomach
Science, 1959A consequence of the recent study of the mechanism of gastric secretion has been the presumption, implicit ( 1 ) if not explicit ( 2 ), that the distinctive gastric transmucosal potential has a fundamental role in the formation of hydrochloric acid.
C, ADRIAN, M, HOGBEN
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Thyroglobulins of cyclostomes and an elasmobranch
General and Comparative Endocrinology, 1975Abstract As part of a study of the biosynthesis and physicochemical properties of primitive vertebrate thyroglobulins, the thyroid-containing tissues of Pacific hagfish (Eptatretus stouti) and of Pacific lamprey (Entosphenus tridentatus), and thyroid glands of Pacific dogfish (Squalus suckleyi) were used.
S, Suzuki +4 more
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Corticosteroids in plasma of elasmobranchs
Comparative Biochemistry and Physiology Part A: Physiology, 1972Abstract 1. 1. Free corticosteroids were quantified by double isotope derivative assay in thirteen plasma samples from seven species of elasmobranchs. 2. 2. In each instance, four batoids and three selachians, 1α-hydroxycortico-sterone was the principal plasmatic corticosteroid. 3. 3.
B, Truscott, D R, Idler
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Forebrain Organization in Elasmobranchs
Brain, Behavior and Evolution, 2012It has long been known that many elasmobranch fishes have relatively large brains. The telencephalon, in particular, has increased in size in several groups, and as a percent of total brain weight, it is as large as in some mammals. Little is known, however, about the organization, connections, and functions of the telencephalon in elasmobranchs. Early
Michael H, Hofmann, R Glenn, Northcutt
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Nature, 1958
So long ago as 1858, Staedeler and Frerichs1 discovered the presence of large amounts of urea in three species of elasmobranch fishes. Many more have been examined since that time, and it is known to-day that many, and probably all marine, elasmobranchs, including the Holocephali, contain 2–2.5 per cent of urea in their blood and tissues.
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So long ago as 1858, Staedeler and Frerichs1 discovered the presence of large amounts of urea in three species of elasmobranch fishes. Many more have been examined since that time, and it is known to-day that many, and probably all marine, elasmobranchs, including the Holocephali, contain 2–2.5 per cent of urea in their blood and tissues.
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A Digest of Elasmobranch Tapeworms
Journal of Parasitology, 2014This review brings together decades of work on elasmobranch tapeworms. The field has advanced significantly over the past 20 yr, with an emphasis on the discovery and description of novel taxa, and the establishment of phylogenetic frameworks for individual orders and their interrelationships. Tapeworms parasitizing elasmobranchs represent 9 orders and
Janine N, Caira, Kirsten, Jensen
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The microvasculature of the elasmobranch gill
Cell And Tissue Research, 1980Corrosion replicas were made of the gill vasculature of the spiny dogfish shark (S. acanthias) and little skate (R. erinacea) by methylmethacrylate perfusion via the ventral or dorsal aorta at 2.0-5.3 kPa. After tissue maceration the replicas were examined by light and scanning electron microscopy.
K R, Olson, B, Kent
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Relative Eye Size in Elasmobranchs
Brain, Behavior and Evolution, 2007Variation in relative eye size was investigated in a sample of 46 species of elasmobranch, 32 species of sharks and 14 species of batoids (skates and rays). To get a measure of eye size relative to body size, eye axial diameter was scaled with body mass using least-squares linear regression, using both raw species data, where species are treated as ...
Lisney, Thomas J., Collin, Shaun P.
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