Role of origin and release location in pre-spawning distribution and movements of anadromous alewife

Fisheries Management and Ecology
By: , and 

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Abstract

Capturing adult anadromous fish that are ready to spawn from a self sustaining population and transferring them into a depleted system is a common fisheries enhancement tool. The behaviour of these transplanted fish, however, has not been fully evaluated. The movements of stocked and native anadromous alewife, Alosa pseudoharengus (Wilson), were monitored in the Ipswich River, Massachusetts, USA, to provide a scientific basis for this management tool. Radiotelemetry was used to examine the effect of origin (native or stocked) and release location (upstream or downstream) on distribution and movement during the spawning migration. Native fish remained in the river longer than stocked fish regardless of release location. Release location and origin influenced where fish spent time and how they moved. The spatial mosaic of available habitats and the entire trajectory of freshwater movements should be considered to restore effectively spawners that traverse tens of kilometres within coastal rivers.

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Publication type Article
Publication Subtype Journal Article
Title Role of origin and release location in pre-spawning distribution and movements of anadromous alewife
Series title Fisheries Management and Ecology
DOI 10.1111/j.1365-2400.2010.00759.x
Volume 18
Issue 1
Year Published 2011
Language English
Publisher Wiley-Blackwell Publishing Ltd.
Contributing office(s) Coop Res Unit Leetown
Description 13 p.
First page 12
Last page 24
Country United States
State Massachusetts
Other Geospatial Ipswich River
Online Only (Y/N) N
Additional Online Files (Y/N) N
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