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The Ecology of Fish Migrations

The Ecology of Fish Migrations Much of what is now known about the migrations of fish has been derived from the study of commercial catch records. Such data frequently provide more information on the distribution of fishing effort than on the distribution of fish (42, 55, 74, 127) and thus require great care in interpretation. Well designed field studies of migration are very costly and have therefore been restricted in number and confined largely to commercially important species. These studies, too, experience significant prob­ lems imposed by gear selection !,lnd by the efficiency and distribution of effort (1, 2, 29, 30, 44, 55, 95, 127, 129, 137, 158, 201). For these reasons the literature relating to field investigations of fish migrations is concentrated on a relatively small number of species and is largely descriptive and nonsynthetic in nature. Only with the very recent development of underwater telemetry and sonar techniques has it become possible continuously to observe the behavior of migrating fish under field conditions (128, 191, 192). These inherent difficulties have restricted most experimental studies of fish migra­ tions to the laboratory. Laboratory studies have focused on the physiological factors involved in the initiation of migratory behavior, and on the possible mechanisms http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Ecology, Evolution, and Systematics Annual Reviews

The Ecology of Fish Migrations

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Publisher
Annual Reviews
Copyright
Copyright 1977 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4162
DOI
10.1146/annurev.es.08.110177.001441
Publisher site
See Article on Publisher Site

Abstract

Much of what is now known about the migrations of fish has been derived from the study of commercial catch records. Such data frequently provide more information on the distribution of fishing effort than on the distribution of fish (42, 55, 74, 127) and thus require great care in interpretation. Well designed field studies of migration are very costly and have therefore been restricted in number and confined largely to commercially important species. These studies, too, experience significant prob­ lems imposed by gear selection !,lnd by the efficiency and distribution of effort (1, 2, 29, 30, 44, 55, 95, 127, 129, 137, 158, 201). For these reasons the literature relating to field investigations of fish migrations is concentrated on a relatively small number of species and is largely descriptive and nonsynthetic in nature. Only with the very recent development of underwater telemetry and sonar techniques has it become possible continuously to observe the behavior of migrating fish under field conditions (128, 191, 192). These inherent difficulties have restricted most experimental studies of fish migra­ tions to the laboratory. Laboratory studies have focused on the physiological factors involved in the initiation of migratory behavior, and on the possible mechanisms

Journal

Annual Review of Ecology, Evolution, and Systematics – Annual Reviews

Published: Nov 1, 1977

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