Acting Fishy: Evolutionary Perspectives On Fish Behavior

The fishes be the intimately numerous and diverse of the vertebrate groups, stemming from a long and branched line of ancient ancestry. Though they lead for more than half of the worlds total vertebrate species, they make up essentially retained the same anatomical plan for 450 million over-the-hill age (Maisey, 1996). What accounts for the stamina of these living fossils? During their evolutionary history, fishes have wedded dress up to a vast diversity of forms, not merely to pull through but also to compete, they have colonized an extraordinary feed of habitats, and their sheer numbers racket argon nearly enough to assure their survival (Whitehead 1975). Alongside these tag of success be the patterns of manner that have evolved to help the heterogeneous species cope with environmental, ecological, and individual strains that stake to impede on their survival. Of the most signifi digestt categories of behavior ar migratory behavior, schooling behavior, nu trition behavior, self-asserting behavior, resting behavior, reproductive behavior, and communication.         Migration is the jam movement of fish from single neck of the woods to another. A migration can be from salt piddle to saltwater, freshwater to freshwater, saltwater to freshwater, vice versa, or hopping back and forth from one to the other. One means by which fish increase their numbers is to spawn in an knowledge domain that their young are likely to thrive in.

Though the aptitude investment is high, well-nigh fish leave swim for weeks or even months to hit a suitable spawning gro und for the discipline of larva, which ofte! n, is the same as their home area that they can severalize by its characteristic odor, orientation to the magnetic fields and water gradients (Moyle, Cech 1996). This behavior, in turn, creates a separation of life history stages in that, once hatched, the currents will carry the young to favorable feeding areas, and once they are active swimmers... If you want to get a full essay, severalize it on our website: OrderCustomPaper.com

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