Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden
The River Dalälven Baltic salmon, Salmo salar L., population has been maintained by stocking reared fish since the early 1920s. Initially, all rearing was carried out at one hatchery, but since the late 1980s two have been used. Both hatcheries are situated 9–10 km from the river mouth but some 600...
Published in: | Fisheries Management and Ecology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2001
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1046/j.1365-2400.2001.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2400.2001.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2400.2001.00177.x |
id |
crwiley:10.1046/j.1365-2400.2001.00177.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1046/j.1365-2400.2001.00177.x 2024-06-02T08:13:59+00:00 Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden Insulander, C. Ragnarsson, B. 2001 http://dx.doi.org/10.1046/j.1365-2400.2001.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2400.2001.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2400.2001.00177.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 8, issue 1, page 61-67 ISSN 0969-997X 1365-2400 journal-article 2001 crwiley https://doi.org/10.1046/j.1365-2400.2001.00177.x 2024-05-03T10:50:22Z The River Dalälven Baltic salmon, Salmo salar L., population has been maintained by stocking reared fish since the early 1920s. Initially, all rearing was carried out at one hatchery, but since the late 1980s two have been used. Both hatcheries are situated 9–10 km from the river mouth but some 600 m apart. All broodfish were caught in a single fish trap situated some 700 m upstream of the upper hatchery. The salmon smolts were released just below the water outlets of each hatchery, respectively. About 2% of the released smolts from each hatchery were tagged annually with Carlin tags. Total recapture rates were higher for smolts from the lower hatchery. A higher proportion of recaptured fish was reported from the home river for salmon from the upper hatchery. The migration within the river to the fish trap was more precise for fish from the upper station. Strays were very late in the season and of a higher number from the lower hatchery. Observations of jumping salmon by the outlet from the lower station indicated that salmon returned to that point. The lower recaptures in the trap were considered a result of a shorter river migration of salmon from the lower hatchery. Article in Journal/Newspaper Salmo salar Wiley Online Library Fisheries Management and Ecology 8 1 61 67 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The River Dalälven Baltic salmon, Salmo salar L., population has been maintained by stocking reared fish since the early 1920s. Initially, all rearing was carried out at one hatchery, but since the late 1980s two have been used. Both hatcheries are situated 9–10 km from the river mouth but some 600 m apart. All broodfish were caught in a single fish trap situated some 700 m upstream of the upper hatchery. The salmon smolts were released just below the water outlets of each hatchery, respectively. About 2% of the released smolts from each hatchery were tagged annually with Carlin tags. Total recapture rates were higher for smolts from the lower hatchery. A higher proportion of recaptured fish was reported from the home river for salmon from the upper hatchery. The migration within the river to the fish trap was more precise for fish from the upper station. Strays were very late in the season and of a higher number from the lower hatchery. Observations of jumping salmon by the outlet from the lower station indicated that salmon returned to that point. The lower recaptures in the trap were considered a result of a shorter river migration of salmon from the lower hatchery. |
format |
Article in Journal/Newspaper |
author |
Insulander, C. Ragnarsson, B. |
spellingShingle |
Insulander, C. Ragnarsson, B. Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
author_facet |
Insulander, C. Ragnarsson, B. |
author_sort |
Insulander, C. |
title |
Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
title_short |
Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
title_full |
Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
title_fullStr |
Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
title_full_unstemmed |
Homing patterns of Baltic salmon, Salmo salar L., from smolts released from two hatcheries in the River Dalälven, Sweden |
title_sort |
homing patterns of baltic salmon, salmo salar l., from smolts released from two hatcheries in the river dalälven, sweden |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.1365-2400.2001.00177.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2400.2001.00177.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2400.2001.00177.x |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
Fisheries Management and Ecology volume 8, issue 1, page 61-67 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2400.2001.00177.x |
container_title |
Fisheries Management and Ecology |
container_volume |
8 |
container_issue |
1 |
container_start_page |
61 |
op_container_end_page |
67 |
_version_ |
1800737661774725120 |