The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales.
A detailed comparative study of the diets of natural brown trout and stocked Atlantic salmon in Llyn Dwythwch, North Wales, was carried out over a period of 13 months. The annual and seasonal composition of both diets was calculated by number, volume and occurrence methods. Food in relation to fish...
Published in: | Journal of Fish Biology |
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Language: | English |
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Wiley
1978
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Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1978.tb04170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1978.tb04170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1978.tb04170.x |
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crwiley:10.1111/j.1095-8649.1978.tb04170.x 2024-06-02T08:03:28+00:00 The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. Pedley, R. B. Jones, J. W. 1978 http://dx.doi.org/10.1111/j.1095-8649.1978.tb04170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1978.tb04170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1978.tb04170.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 12, issue 3, page 239-256 ISSN 0022-1112 1095-8649 journal-article 1978 crwiley https://doi.org/10.1111/j.1095-8649.1978.tb04170.x 2024-05-03T12:06:44Z A detailed comparative study of the diets of natural brown trout and stocked Atlantic salmon in Llyn Dwythwch, North Wales, was carried out over a period of 13 months. The annual and seasonal composition of both diets was calculated by number, volume and occurrence methods. Food in relation to fish size was compared by Spearman rank correlation. Interspecific competition was only significant during the summer months when food was abundant. The bottom fauna was classified according to accessibility, and utilization of the fauna and electivity is discussed for each species. The similarity of diet between the salmon stocked into Llyn Dwythwch and those in Welsh rivers implies that the former is the result of inheritance rather than from interactive segregation with the lake trout. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 12 3 239 256 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A detailed comparative study of the diets of natural brown trout and stocked Atlantic salmon in Llyn Dwythwch, North Wales, was carried out over a period of 13 months. The annual and seasonal composition of both diets was calculated by number, volume and occurrence methods. Food in relation to fish size was compared by Spearman rank correlation. Interspecific competition was only significant during the summer months when food was abundant. The bottom fauna was classified according to accessibility, and utilization of the fauna and electivity is discussed for each species. The similarity of diet between the salmon stocked into Llyn Dwythwch and those in Welsh rivers implies that the former is the result of inheritance rather than from interactive segregation with the lake trout. |
format |
Article in Journal/Newspaper |
author |
Pedley, R. B. Jones, J. W. |
spellingShingle |
Pedley, R. B. Jones, J. W. The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
author_facet |
Pedley, R. B. Jones, J. W. |
author_sort |
Pedley, R. B. |
title |
The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
title_short |
The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
title_full |
The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
title_fullStr |
The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
title_full_unstemmed |
The comparative feeding behaviour of brown trout, Salmo trutta L. and Atlantic salmon, Salmo salar L. in Llyn Dwythwch, Wales. |
title_sort |
comparative feeding behaviour of brown trout, salmo trutta l. and atlantic salmon, salmo salar l. in llyn dwythwch, wales. |
publisher |
Wiley |
publishDate |
1978 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1978.tb04170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1978.tb04170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1978.tb04170.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 12, issue 3, page 239-256 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1978.tb04170.x |
container_title |
Journal of Fish Biology |
container_volume |
12 |
container_issue |
3 |
container_start_page |
239 |
op_container_end_page |
256 |
_version_ |
1800747996614230016 |