Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake
Abstract Spawning is a key but often fragile event in the life cycles of fish populations. Nevertheless, it has been relatively little studied for lithophilic lacustrine species requiring hard spawning substrates, such as gravels or stones, largely devoid of fine sediments. Twelve demonstrated or pu...
Published in: | Ecology of Freshwater Fish |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2014
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/eff.12122 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feff.12122 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12122 |
id |
crwiley:10.1111/eff.12122 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/eff.12122 2024-06-02T08:00:03+00:00 Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake Miller, Helen Winfield, Ian J. Fletcher, Janice M. Ben James, J. van Rijn, Joey Bull, Jonathan M. Cotterill, Carol J. Natural Environment Research Council University of Southampton 2014 http://dx.doi.org/10.1111/eff.12122 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feff.12122 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12122 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 24, issue 1, page 32-43 ISSN 0906-6691 1600-0633 journal-article 2014 crwiley https://doi.org/10.1111/eff.12122 2024-05-03T11:42:43Z Abstract Spawning is a key but often fragile event in the life cycles of fish populations. Nevertheless, it has been relatively little studied for lithophilic lacustrine species requiring hard spawning substrates, such as gravels or stones, largely devoid of fine sediments. Twelve demonstrated or putative spawning grounds of Arctic charr ( Salvelinus alpinus ) in shallow and deep areas of the north and south basins of the eutrophicated lake of Windermere, UK, were described by hydroacoustic, physical and visual surveys. In addition, their current conditions were compared with their original qualitative descriptions made over 50 years ago. Spawning ground characteristics were found to be more complex than originally described, with considerable overlaps in depth ranges and only limited areas of appropriate hard substrates. Moreover, extensive gill netting surveys in recent years have found spawning Arctic charr at only seven of the original 12 demonstrated or putative spawning grounds, although several new spawning areas have also been found. The distribution of unsuitable fine sediments is widespread in the lake, particularly in the more eutrophicated south basin where suitable spawning habitat within the putative spawning areas is limited. Windermere faces a number of environmental problems including climate change and species introductions. However, the temporal and spatial patterns of the lake's eutrophication suggest that associated increases in fine sediments have been a major driver of the observed deterioration of Arctic charr spawning grounds and so may have also contributed to a marked decline recently observed in the local abundance of this species. Article in Journal/Newspaper Arctic charr Arctic Climate change Salvelinus alpinus Wiley Online Library Arctic Basin Lake ENVELOPE(-71.750,-71.750,67.083,67.083) Ecology of Freshwater Fish 24 1 32 43 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Spawning is a key but often fragile event in the life cycles of fish populations. Nevertheless, it has been relatively little studied for lithophilic lacustrine species requiring hard spawning substrates, such as gravels or stones, largely devoid of fine sediments. Twelve demonstrated or putative spawning grounds of Arctic charr ( Salvelinus alpinus ) in shallow and deep areas of the north and south basins of the eutrophicated lake of Windermere, UK, were described by hydroacoustic, physical and visual surveys. In addition, their current conditions were compared with their original qualitative descriptions made over 50 years ago. Spawning ground characteristics were found to be more complex than originally described, with considerable overlaps in depth ranges and only limited areas of appropriate hard substrates. Moreover, extensive gill netting surveys in recent years have found spawning Arctic charr at only seven of the original 12 demonstrated or putative spawning grounds, although several new spawning areas have also been found. The distribution of unsuitable fine sediments is widespread in the lake, particularly in the more eutrophicated south basin where suitable spawning habitat within the putative spawning areas is limited. Windermere faces a number of environmental problems including climate change and species introductions. However, the temporal and spatial patterns of the lake's eutrophication suggest that associated increases in fine sediments have been a major driver of the observed deterioration of Arctic charr spawning grounds and so may have also contributed to a marked decline recently observed in the local abundance of this species. |
author2 |
Natural Environment Research Council University of Southampton |
format |
Article in Journal/Newspaper |
author |
Miller, Helen Winfield, Ian J. Fletcher, Janice M. Ben James, J. van Rijn, Joey Bull, Jonathan M. Cotterill, Carol J. |
spellingShingle |
Miller, Helen Winfield, Ian J. Fletcher, Janice M. Ben James, J. van Rijn, Joey Bull, Jonathan M. Cotterill, Carol J. Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
author_facet |
Miller, Helen Winfield, Ian J. Fletcher, Janice M. Ben James, J. van Rijn, Joey Bull, Jonathan M. Cotterill, Carol J. |
author_sort |
Miller, Helen |
title |
Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
title_short |
Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
title_full |
Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
title_fullStr |
Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
title_full_unstemmed |
Distribution, characteristics and condition of Arctic charr ( Salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
title_sort |
distribution, characteristics and condition of arctic charr ( salvelinus alpinus) spawning grounds in a differentially eutrophicated twin‐basin lake |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/eff.12122 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feff.12122 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12122 |
long_lat |
ENVELOPE(-71.750,-71.750,67.083,67.083) |
geographic |
Arctic Basin Lake |
geographic_facet |
Arctic Basin Lake |
genre |
Arctic charr Arctic Climate change Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Climate change Salvelinus alpinus |
op_source |
Ecology of Freshwater Fish volume 24, issue 1, page 32-43 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/eff.12122 |
container_title |
Ecology of Freshwater Fish |
container_volume |
24 |
container_issue |
1 |
container_start_page |
32 |
op_container_end_page |
43 |
_version_ |
1800744076307333120 |