Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England.
This paper deals with the development and use of biological reference points for salmon conservation on the River Lune, England. The Lune supports recreational and net fisheries with annual catches in the region of 1,000 and 1356 salmon respectively. Using models transported from other river systems...
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Environment Agency North West
2005
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Online Access: | http://hdl.handle.net/1834/24889 |
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ftoceandocs:oai:aquadocs.org:1834/24889 2023-05-15T15:32:44+02:00 Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. Aprahamian , M.W. Wyatt, R. Shields, B. 2005 application/pdf http://hdl.handle.net/1834/24889 en eng Environment Agency North West Warrington, UK http://fba.org.uk http://hdl.handle.net/1834/24889 dis@fba.org.uk http://aquaticcommons.org/id/eprint/8087 1256 2012-03-01 17:31:45 8087 Environment Agency, UK (Freshwater Biological Association) Conservation Fisheries Limnology England Lune Catchment Nature conservation Salmo salar Sport fishing Juveniles Population density Fishery management monograph 2005 ftoceandocs 2023-04-06T17:02:45Z This paper deals with the development and use of biological reference points for salmon conservation on the River Lune, England. The Lune supports recreational and net fisheries with annual catches in the region of 1,000 and 1356 salmon respectively. Using models transported from other river systems, biological reference points exclusive to the Lune were developed; specifically the number of eggs deposited and carrying capacity estimates for age 0+ and 1+ parr. The conservation limit was estimated at 11.9 million eggs and between 1989 and 1998 was exceeded in two years. Comparison of juvenile salmon densities in 1991 and 1997 with estimates of carrying capacity indicated that 0+ and 1+ parr densities were at around 60 % of carrying capacity and may relate to the number of eggs deposited in 1990 and 1996 being approximately 70% of the target value. The paper discusses the management actions taken in order to ensure that the management target of the conservation limit being met four years out of five is delivered. It also discusses the balance between conservation and exploitation and the socio-economic decisions made in order to ensure parity of impacts on the rod and net fisheries. The regulations have been enforced since 1999 and the paper concludes with an assessment of the actions taken to deliver the management targets, over the last five years. Environment Agency Archives North West No date on publication. Date given is estimated guess. Book Atlantic salmon Salmo salar IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Conservation Fisheries Limnology England Lune Catchment Nature conservation Salmo salar Sport fishing Juveniles Population density Fishery management |
spellingShingle |
Conservation Fisheries Limnology England Lune Catchment Nature conservation Salmo salar Sport fishing Juveniles Population density Fishery management Aprahamian , M.W. Wyatt, R. Shields, B. Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
topic_facet |
Conservation Fisheries Limnology England Lune Catchment Nature conservation Salmo salar Sport fishing Juveniles Population density Fishery management |
description |
This paper deals with the development and use of biological reference points for salmon conservation on the River Lune, England. The Lune supports recreational and net fisheries with annual catches in the region of 1,000 and 1356 salmon respectively. Using models transported from other river systems, biological reference points exclusive to the Lune were developed; specifically the number of eggs deposited and carrying capacity estimates for age 0+ and 1+ parr. The conservation limit was estimated at 11.9 million eggs and between 1989 and 1998 was exceeded in two years. Comparison of juvenile salmon densities in 1991 and 1997 with estimates of carrying capacity indicated that 0+ and 1+ parr densities were at around 60 % of carrying capacity and may relate to the number of eggs deposited in 1990 and 1996 being approximately 70% of the target value. The paper discusses the management actions taken in order to ensure that the management target of the conservation limit being met four years out of five is delivered. It also discusses the balance between conservation and exploitation and the socio-economic decisions made in order to ensure parity of impacts on the rod and net fisheries. The regulations have been enforced since 1999 and the paper concludes with an assessment of the actions taken to deliver the management targets, over the last five years. Environment Agency Archives North West No date on publication. Date given is estimated guess. |
format |
Book |
author |
Aprahamian , M.W. Wyatt, R. Shields, B. |
author_facet |
Aprahamian , M.W. Wyatt, R. Shields, B. |
author_sort |
Aprahamian , M.W. |
title |
Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
title_short |
Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
title_full |
Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
title_fullStr |
Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
title_full_unstemmed |
Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. |
title_sort |
use of biological reference points for the conservation of atlantic salmon (salmo salar l.)in the river lune, north west england. |
publisher |
Environment Agency North West |
publishDate |
2005 |
url |
http://hdl.handle.net/1834/24889 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
dis@fba.org.uk http://aquaticcommons.org/id/eprint/8087 1256 2012-03-01 17:31:45 8087 Environment Agency, UK (Freshwater Biological Association) |
op_relation |
http://fba.org.uk http://hdl.handle.net/1834/24889 |
_version_ |
1766363222159392768 |