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Morphology and Innervation of the Fish Heart (Paperback)
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Morphology and Innervation of the Fish Heart (Paperback)
Series: Advances in Anatomy, Embryology and Cell Biology, 89
Expected to ship within 10 - 15 working days
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Fish have adapted extremely successfully to the extremes of the
aqueous environ ment, with the teleosts being outstanding in this
respect. Amongst the class Pisces are pelagic species which must
maintain certain swimming speeds in order to remain buoyant,
species which migrate over thousands of miles, abyssal species
living in waters with markedly reduced oxygen content, species
living in the subzero waters of the Antarctic and also the
obligatory air-breathing species of the tropics. Even in a
comparatively benign environment such as the relatively shallow
waters over continental shelves, the lifestyle of fish species
varies greatly, with sedentary benthic and pelagic shoaling species
coexisting within a comparatively narrow depth-range. Clearly,
widely varying physiologi cal demands are made on species occupying
such different environments and exhibiting such different
lifestyles, and the successful provision of an adequate oxygen
supply to the tissues is therefore of paramount importance to the
fish. It follows that the demands made on the fish heart in
irrigating the gill vascula ture will vary greatly according to the
lifestyle and habitat of a particular species, and it is therefore
surprising that authors reporting physiological, pharmacologi cal,
biochemical and morphological investigations on the hearts of a
consider able number of cyclostome, elasmobranch and teleost
species imply that their results and conclusions can be extended to
"the fish heart" in general."
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