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A Review of Upstream Migration and Movements in Inland Waters by Anguillid Eels: Toward a General Theory

Feunteun, Eric and Laffaille, Pascal and Robinet, Tony and Briand, Cédric and Baisez, Aurore and Olivier, Jean-Michel and Acou, Anthony A Review of Upstream Migration and Movements in Inland Waters by Anguillid Eels: Toward a General Theory. (2003) In: Eel Biology. Springer, 191-213. ISBN 978-4-431-00458-5

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Official URL: http://dx.doi.org/10.1007/978-4-431-65907-5

Abstract

Anguillid eels are well known as catadromous highly migratory species, with marine spawning grounds well separated from inshore and inland growth areas. However, invasion mechanisms of river systems are poorly documented. This theory is based upon the identification of four distinct movement behaviors: "founders" that colonize rivers until they settle in the first available suitable habitat they encounter; "pioneers" that migrate upstream to the upper boundaries of the system; "home range dwellers" that establish in a given area for several months to several years; and „nomads;“ which are erratic eels that perform a general upstream shift as they search for suitable areas to forage or to settle. These behaviors are not mutually exclusive, any eel shifting from one behavior to another, depending upon ontogenetic attributes (age, experience, morphology, physiological stage, etc.), population parameters that determine density-dependent movements; and environmental parameters such as food availability, temperature, flow, and the carrying capacity of the ecosystem.

Item Type:Book Section
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institution d’Aménagement de la Vilaine - IAV (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
French research institutions > Institut national de recherche en sciences et technologies pour l’environnement et l’agriculture - CEMAGREF (FRANCE)
Other partners > Université de La Rochelle (FRANCE)
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Deposited By: Pascal LAFFAILLE
Deposited On:21 Feb 2013 15:54

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