Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985
A number of authors have described the manner in which young salmonids, soon after emergence from the gravel, set up and defend territories. This leads to mortality or downstream displacement of the individuals which are unable to acquire territories and is widely accepted as the main method of popu...
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Freshwater Biological Association
1985
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| Online Access: | http://hdl.handle.net/1834/22737 |
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ftoceandocs:oai:aquadocs.org:1834/22737 2023-05-15T15:32:21+02:00 Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 Crisp, D.T. 1985 application/pdf 37 http://hdl.handle.net/1834/22737 en eng Freshwater Biological Association Ambleside, UK http://www.fba.org.uk WIT/73/29 http://hdl.handle.net/1834/22737 http://aquaticcommons.org/id/eprint/5218 1256 2011-09-29 15:12:02 5218 Freshwater Biological Association Ecology Fisheries Limnology Freshwater fish Experimental data Survival Juveniles Territoriality Catadromous migrations Current velocity England Grassholme Reservoir monograph 1985 ftoceandocs 2023-04-06T17:02:13Z A number of authors have described the manner in which young salmonids, soon after emergence from the gravel, set up and defend territories. This leads to mortality or downstream displacement of the individuals which are unable to acquire territories and is widely accepted as the main method of population regulation amongst young salmonids. In some field experiments the fish were constrained in screened reaches and the option of downstream dispersal for the surplus fry was thus excluded. In order to explore some aspects of downstream dispersal more closely under conditions which gave more control than is obtained in a natural stream, four experimental channels were set up at Grassholme reservoir in Teesdale. The report describes the results of investigations on the timing and rate of downstream movement of young brown trout (Salmo trutta L.) and Atlantic salmon (Salmo salar L.) out of experimental channels, with special reference to the effect of water velocity on the rate of ”emigration”. Book Atlantic salmon Salmo salar IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
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Open Polar |
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IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
| op_collection_id |
ftoceandocs |
| language |
English |
| topic |
Ecology Fisheries Limnology Freshwater fish Experimental data Survival Juveniles Territoriality Catadromous migrations Current velocity England Grassholme Reservoir |
| spellingShingle |
Ecology Fisheries Limnology Freshwater fish Experimental data Survival Juveniles Territoriality Catadromous migrations Current velocity England Grassholme Reservoir Crisp, D.T. Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| topic_facet |
Ecology Fisheries Limnology Freshwater fish Experimental data Survival Juveniles Territoriality Catadromous migrations Current velocity England Grassholme Reservoir |
| description |
A number of authors have described the manner in which young salmonids, soon after emergence from the gravel, set up and defend territories. This leads to mortality or downstream displacement of the individuals which are unable to acquire territories and is widely accepted as the main method of population regulation amongst young salmonids. In some field experiments the fish were constrained in screened reaches and the option of downstream dispersal for the surplus fry was thus excluded. In order to explore some aspects of downstream dispersal more closely under conditions which gave more control than is obtained in a natural stream, four experimental channels were set up at Grassholme reservoir in Teesdale. The report describes the results of investigations on the timing and rate of downstream movement of young brown trout (Salmo trutta L.) and Atlantic salmon (Salmo salar L.) out of experimental channels, with special reference to the effect of water velocity on the rate of ”emigration”. |
| format |
Book |
| author |
Crisp, D.T. |
| author_facet |
Crisp, D.T. |
| author_sort |
Crisp, D.T. |
| title |
Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| title_short |
Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| title_full |
Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| title_fullStr |
Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| title_full_unstemmed |
Experiments on downstream movement of recently emerged trout and salmon parr in Grassholme channels, 1983-1985 |
| title_sort |
experiments on downstream movement of recently emerged trout and salmon parr in grassholme channels, 1983-1985 |
| publisher |
Freshwater Biological Association |
| publishDate |
1985 |
| url |
http://hdl.handle.net/1834/22737 |
| genre |
Atlantic salmon Salmo salar |
| genre_facet |
Atlantic salmon Salmo salar |
| op_source |
http://aquaticcommons.org/id/eprint/5218 1256 2011-09-29 15:12:02 5218 Freshwater Biological Association |
| op_relation |
http://www.fba.org.uk WIT/73/29 http://hdl.handle.net/1834/22737 |
| _version_ |
1766362852750262272 |