Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic

The timing of river entry in the Atlantic salmon is known to depend on genetic, demographic and environmental factors, but little is known about the relative magnitude of among population and among year variation and covariation in this respect in natural state Atlantic salmon rives. To investigate...

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Main Authors: Anna KUPARINEN, Juha MERILÄ
Format: Article in Journal/Newspaper
Language:English
Published: Oxford University Press 2009
Subjects:
Online Access:https://doaj.org/article/8ad43fe136aa48b1847f544c15e35f19
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spelling ftdoajarticles:oai:doaj.org/article:8ad43fe136aa48b1847f544c15e35f19 2023-05-15T15:28:27+02:00 Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic Anna KUPARINEN Juha MERILÄ 2009-10-01T00:00:00Z https://doaj.org/article/8ad43fe136aa48b1847f544c15e35f19 EN eng Oxford University Press http://www.currentzoology.org/paperdetail.asp?id=11283 https://doaj.org/toc/1674-5507 1674-5507 https://doaj.org/article/8ad43fe136aa48b1847f544c15e35f19 Current Zoology, Vol 55, Iss 5 (2009) Atlantic salmon Coastal fisheries Fisheries management Freshwater entry Migration River entry Zoology QL1-991 article 2009 ftdoajarticles 2022-12-31T12:02:44Z The timing of river entry in the Atlantic salmon is known to depend on genetic, demographic and environmental factors, but little is known about the relative magnitude of among population and among year variation and covariation in this respect in natural state Atlantic salmon rives. To investigate this, variability in the timing of river entry in three historical Finnish Atlantic salmon populations were analyzed using salmon trap data collected during 1870–1902. The analyses reveled that 1) the timing of river entry differed substantially and consistently among the rivers, and that 2) variation among the rivers was much larger than variation among years. Annual variations were not explained by regional environmental conditions, whereas in one river the timing of the local flood peak was a significant predictor of the timing of river entry. Differences in the timing of salmon entry to geographically closely situated rivers suggests that a regionally fixed opening date for coastal fisheries might not be the best management strategy as it may lead to uneven exploitation of salmon populations from different rivers [Current Zoology 55 (5): –2009]. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Atlantic salmon
Coastal fisheries
Fisheries management
Freshwater entry
Migration
River entry
Zoology
QL1-991
spellingShingle Atlantic salmon
Coastal fisheries
Fisheries management
Freshwater entry
Migration
River entry
Zoology
QL1-991
Anna KUPARINEN
Juha MERILÄ
Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
topic_facet Atlantic salmon
Coastal fisheries
Fisheries management
Freshwater entry
Migration
River entry
Zoology
QL1-991
description The timing of river entry in the Atlantic salmon is known to depend on genetic, demographic and environmental factors, but little is known about the relative magnitude of among population and among year variation and covariation in this respect in natural state Atlantic salmon rives. To investigate this, variability in the timing of river entry in three historical Finnish Atlantic salmon populations were analyzed using salmon trap data collected during 1870–1902. The analyses reveled that 1) the timing of river entry differed substantially and consistently among the rivers, and that 2) variation among the rivers was much larger than variation among years. Annual variations were not explained by regional environmental conditions, whereas in one river the timing of the local flood peak was a significant predictor of the timing of river entry. Differences in the timing of salmon entry to geographically closely situated rivers suggests that a regionally fixed opening date for coastal fisheries might not be the best management strategy as it may lead to uneven exploitation of salmon populations from different rivers [Current Zoology 55 (5): –2009].
format Article in Journal/Newspaper
author Anna KUPARINEN
Juha MERILÄ
author_facet Anna KUPARINEN
Juha MERILÄ
author_sort Anna KUPARINEN
title Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
title_short Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
title_full Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
title_fullStr Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
title_full_unstemmed Variation in the timing of river entry of Atlantic salmon (Salmo salar L.) in the Baltic
title_sort variation in the timing of river entry of atlantic salmon (salmo salar l.) in the baltic
publisher Oxford University Press
publishDate 2009
url https://doaj.org/article/8ad43fe136aa48b1847f544c15e35f19
genre Atlantic salmon
Salmo salar
genre_facet Atlantic salmon
Salmo salar
op_source Current Zoology, Vol 55, Iss 5 (2009)
op_relation http://www.currentzoology.org/paperdetail.asp?id=11283
https://doaj.org/toc/1674-5507
1674-5507
https://doaj.org/article/8ad43fe136aa48b1847f544c15e35f19
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