| 1. |
Distribution and Food of the Cormorant on the Lower Reaches of the River Tweed |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 107-113
R. McINTOSH,
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摘要:
ABSTRACTRegular counts were made of the number of cormorants feeding on a 22 km stretch of the River Tweed above its mouth during the winter of 1972/73. Daily counts rose to a peak of 99 birds in late December and declined towards the end of March, with the birds tending to congregate round favoured roosting sites.Stomach analysis was carried out on a sample of 26 birds shot during the period of the investigation and roach, salmonid fish and flounders were found to be the main food species. Size of fish taken ranged from 3·6 to 67 cms and the daily food consumption was estimated at 650–700 gms fresh weight.It is suggested that in view of the relative availability of each of the prey species and the other factors governing the survival of young salmon, that predation by cormorants is unlikely to significantly affect salmon catches by anglers and netsmen on the River Twe
ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00392.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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| 2. |
Telemetric Techniques for Studying Fish Behaviour in the Field |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 114-115
JAMES D. McCLEAVE,
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ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00393.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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| 3. |
INSTITUTE AFFAIRS |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 116-117
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ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00394.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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| 4. |
NOTEBOOK |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 117-118
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ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00395.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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| 5. |
Illegal Netting |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 118-118
David A. Wren,
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ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00396.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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| 6. |
BOOK REVIEWS |
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Aquaculture Research,
Volume 9,
Issue 4,
1978,
Page 119-120
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摘要:
Book reviews in this article:The Economics of Fisheries Managementby Lee G. Anderson.New Strategic Factors in the North Atlantic. Edited by Christoph Bertram and Johan J. Hoist.
ISSN:1355-557X
DOI:10.1111/j.1365-2109.1978.tb00398.x
出版商:Blackwell Publishing Ltd
年代:1978
数据来源: WILEY
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