Historical changes in age structure of Atlantic salmon,Salmo salarL., in the River Eo, northern Spain

The genetic influence of stocking on the Atlantic salmon (Salmo salar) population from the Spanish Esva River was analysed by electrophoresis of protein loci. Genetic variation within parr and mature male parr samples demonstrated that Scottish-origin parr stocked in 1990 survived the first summer. However, samples collected from returning adults in 1990 and 1991 did not indicate any contribution from previous stocking programs. Altered MEP-2* frequencies indicate that the native gene pool may have been disrupted by foreign genomes from precocious males or grilse.

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Genetic Characterization of Introduced Populations of Atlantic Salmon, Salmo Salar, in Asturias (Northern Spain)

Hereditas ◽

10.1111/j.1601-5223.1993.00047.x ◽

2004 ◽

Vol 119 (1) ◽

pp. 47-51 ◽

Cited By ~ 16

Author(s):

E. Vazquez ◽

P. Presa ◽

J. A. Sánchez ◽

G. Blanco ◽

F. Utter

Keyword(s):

Atlantic Salmon ◽

Salmo Salar ◽

Genetic Characterization ◽

Northern Spain ◽

Atlantic Salmon Salmo Salar ◽

Introduced Populations

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Spatial and temporal variation of genetic diversity and estimation of effective population sizes in Atlantic salmon (Salmo salar, L.) populations from Asturias (Northern Spain) using microsatellites

Conservation Genetics ◽

10.1007/s10592-007-9400-5 ◽

2007 ◽

Vol 9 (4) ◽

pp. 807-819 ◽

Cited By ~ 7

Author(s):

Yaisel Juan Borrell ◽

David Bernardo ◽

Gloria Blanco ◽

Emilia Vázquez ◽

José Antonio Sánchez

Keyword(s):

Genetic Diversity ◽

Atlantic Salmon ◽

Temporal Variation ◽

Salmo Salar ◽

Spatial And Temporal Variation ◽

Effective Population ◽

Northern Spain ◽

Atlantic Salmon Salmo Salar ◽

Population Sizes

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RESULTS OF ATLANTIC SALMON INVESTIGATIONS IN NORTHERN DVINA RIVER DURING FISHING FOR RESEARCH PURPOSES

Fisheries ◽

10.37663/0131-6184-2020-3-64-70 ◽

2020 ◽

Vol 2020 (3) ◽

pp. 64-70

Author(s):

Igor Studenov ◽

Dmitriy Chupov ◽

Gennadiy Ustyuzhinskiy ◽

Alexey Tortsev

Keyword(s):

Atlantic Salmon ◽

Age Structure ◽

Innovative Development ◽

Financing System ◽

Fishery Research ◽

Migration Dynamics

Since 2008, due to the change in the fishery research financing system, a decrease in research variety was noticed. After changes in fisheries legislation, the use of the "quasi-budget" financing through the implementation of "scientific" quotas was discontinued. Obvious enough, that the destruction of valuable living resources caught during research fishing led to inability of fisheries research to ensure innovative development of the branch, as well as to preserve the scope of research achieved by 2008. Despite this, the studies carried out in 1994-2014 have significantly expanded the understanding of the Atlantic salmon biology in the Northern Dvina River. The observations produced extensive material on migration dynamics, catch on effort in fishing gear, length and weight indicators, sex and age structure of spawning herds of Atlantic salmon of the Northern Dvina River.

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