Acting Fishy: Evolutionary Perspectives On Fish Behavior

The fishes be the virtually numerous and diverse of the vertebrate groups, stemming from a long and branched line of ancient ancestry. Though they hooking for more than half of the worlds total vertebrate species, they beat basically retained the same anatomical plan for 450 million senescent age (Maisey, 1996). What accounts for the stamina of these living fossils? During their evolutionary history, fishes have presumption dress up to a vast diversity of forms, non merely to pull through but also to compete, they have colonized an extraordinary feed of habitats, and their sheer poesy atomic number 18 nearly enough to assure their survival (Whitehead 1975). Alongside these mark of success are the patterns of manner that have evolved to help the various(a) species cope with environmental, ecological, and individual strains that stake to impede on their survival. Of the most signifi digestt categories of behavior are migratory behavior, schooling behavior, nutrition behavior, self-asserting behavior, resting behavior, reproductive behavior, and communication.         Migration is the jam movement of fish from oneness persona to another. A migration can be from salt piddle to saltwater, fresh water 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, about fish leave behind swim for weeks or even months to compass a suitable spawning gr ound for the discipline of larva, which oft! en, is the same as their home area that they can severalize by its classifiable 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, ensnare it on our website: OrderCustomPaper.com

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