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January 24, 2010 | History

Conservation of endangered Atlantic salmon in Maine 1 edition

Conservation of endangered Atlantic salmon in Maine
Cory T. Robertson

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Conservation of endangered Atlantic salmon in Maine.

Published 2005 .
Written in English.

About the Book

This thesis applies mathematical models to the conservation of Atlantic salmon (Salmo salar L.), using Endangered populations in Maine as a case study. Matrix population models help identify the causes of declines and the potential of recovery strategies. Maine populations have declined by approximately 90% since 1970, but are projected to have grown by 60% in the absence of fisheries, and by 500% in the absence of a "regime shift" in marine survival. Evaluation of recovery strategies for their potential to increase population growth rate (lambda) suggests: (1) elimination of remaining fisheries would have little effect (Deltalambda = +1.5%); (2) historical hatchery fry-stocking exacerbated declines (Deltalambda = -30%); (3) current hatcheries are unlikely to elicit recovery (Deltalambda < +3.8%); (4) hatchery smolt releases may have more positive demographic effects (Deltalambda > +18%); and (5) freshwater habitat improvement may provide the greatest opportunity to recover this endangered species (Deltalambda > +33%).

Edition Notes

Source: Masters Abstracts International, Volume: 44-02, page: 0776.

Thesis (M.Sc.)--University of Toronto, 2005.

Electronic version licensed for access by U. of T. users.

GERSTEIN MICROTEXT copy on microfiche (2 microfiches).

The Physical Object

143 leaves.
Number of pages

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Open Library

History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page