Regulation of the fitness of Atlantic salmon (Salmo salar) by intra-specific competition amongst the juveniles

Gibson, R. John (1995) Regulation of the fitness of Atlantic salmon (Salmo salar) by intra-specific competition amongst the juveniles. Freshwater Forum, 5(1), pp. 54-72.

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Abstract

Factors affecting the fitness of juvenile salmon are discussed. Although fitness from the genetic point of view is defined as the relative capacity of carriers of a given genotype to transmit their genes to the gene pool of the following generations, growth and survival of individuals are also components of fitness, and are influenced by responses to competition, which is the major topic of this article including implications for management. In order to better understand the relationships of density-dependent survival in Newfoundland, egg depositions were manipulated experimentally in the Freshwater River. Figures demonstrate the relationship between stock (number of eggs per 100 m2 of river) and recruitment (number of smolts per l00 m2 of Atlantic salmon, and also the percentage survival from egg to smolt stage related to potential egg depositions.

Item Type: Article
Title: Regulation of the fitness of Atlantic salmon (Salmo salar) by intra-specific competition amongst the juveniles
Personal Creator/Author:
CreatorsEmail
Gibson, R. John
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 5
Number: 1
Page Range: pp. 54-72
Date: 1995
ISSN: 0961-4664
Contact Email Address: library@fba.org.uk
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Salmon fisheries; Newfoundland; Salmo salar; regulation
Subjects: Ecology
Fisheries
Item ID: 4557
Depositing User: Hardy B Schwamm
Date Deposited: 18 Nov 2010 12:35
Last Modified: 29 Sep 2011 16:14
URI: http://aquaticcommons.org/id/eprint/4557

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