Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland
A newly introduced species, the bullhead, Cottus gobio L., was observed for the first time in the River Utsjoki, a tributary of the River Teno, in 1979. The River Teno is one of the most important Atlantic salmon, Salmo salar L., rivers in Northern Europe and its tributary the River Utsjoki is an im...
Published in: | Fisheries Management and Ecology |
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crwiley:10.1046/j.1365-2400.1998.00083.x 2024-06-02T08:02:01+00:00 Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland PIHLAJA, O. JULKUNEN, M. NIEMELÄ, E. ERKINARO, J. 1998 http://dx.doi.org/10.1046/j.1365-2400.1998.00083.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2400.1998.00083.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2400.1998.00083.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 5, issue 3, page 189-199 ISSN 0969-997X 1365-2400 journal-article 1998 crwiley https://doi.org/10.1046/j.1365-2400.1998.00083.x 2024-05-03T11:23:21Z A newly introduced species, the bullhead, Cottus gobio L., was observed for the first time in the River Utsjoki, a tributary of the River Teno, in 1979. The River Teno is one of the most important Atlantic salmon, Salmo salar L., rivers in Northern Europe and its tributary the River Utsjoki is an important salmon spawning and nursery area. The densities of bullhead were lowest in the areas to which the species has spread most recently and highest in the areas downstream of its introduction point. Densities were markedly lower upstream. Statistical analysis showed that the presence of the bullhead had not affected juvenile salmon densities in the River Utsjoki. Article in Journal/Newspaper Arctic Atlantic salmon Northern Finland Salmo salar Utsjoki Wiley Online Library Arctic Teno ENVELOPE(25.690,25.690,68.925,68.925) Fisheries Management and Ecology 5 3 189 199 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A newly introduced species, the bullhead, Cottus gobio L., was observed for the first time in the River Utsjoki, a tributary of the River Teno, in 1979. The River Teno is one of the most important Atlantic salmon, Salmo salar L., rivers in Northern Europe and its tributary the River Utsjoki is an important salmon spawning and nursery area. The densities of bullhead were lowest in the areas to which the species has spread most recently and highest in the areas downstream of its introduction point. Densities were markedly lower upstream. Statistical analysis showed that the presence of the bullhead had not affected juvenile salmon densities in the River Utsjoki. |
format |
Article in Journal/Newspaper |
author |
PIHLAJA, O. JULKUNEN, M. NIEMELÄ, E. ERKINARO, J. |
spellingShingle |
PIHLAJA, O. JULKUNEN, M. NIEMELÄ, E. ERKINARO, J. Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
author_facet |
PIHLAJA, O. JULKUNEN, M. NIEMELÄ, E. ERKINARO, J. |
author_sort |
PIHLAJA, O. |
title |
Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
title_short |
Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
title_full |
Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
title_fullStr |
Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
title_full_unstemmed |
Changes in the density of introduced bullhead, Cottus gobio L., and its impact on juvenile Atlantic salmon, Salmo salar L., densities in a sub‐Arctic salmon river in northern Finland |
title_sort |
changes in the density of introduced bullhead, cottus gobio l., and its impact on juvenile atlantic salmon, salmo salar l., densities in a sub‐arctic salmon river in northern finland |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1046/j.1365-2400.1998.00083.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2400.1998.00083.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2400.1998.00083.x |
long_lat |
ENVELOPE(25.690,25.690,68.925,68.925) |
geographic |
Arctic Teno |
geographic_facet |
Arctic Teno |
genre |
Arctic Atlantic salmon Northern Finland Salmo salar Utsjoki |
genre_facet |
Arctic Atlantic salmon Northern Finland Salmo salar Utsjoki |
op_source |
Fisheries Management and Ecology volume 5, issue 3, page 189-199 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2400.1998.00083.x |
container_title |
Fisheries Management and Ecology |
container_volume |
5 |
container_issue |
3 |
container_start_page |
189 |
op_container_end_page |
199 |
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1800746521511067648 |