Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors
The downstream migration of Atlantic salmon (Salmo salar L.) and sea trout smolt (S. trutta L.) was investigated using radio telemetry in the spring of 1999 and 2000. Forty wild sea trout smolts, 20 F1 sea trout smolts, 20 hatchery salmon smolts and 20 salmon smolts from river stockings were radio t...
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ftdtupubl:oai:pure.atira.dk:publications/bdcdaba0-9bc9-4880-b30b-b85c851a987e 2024-05-19T07:37:38+00:00 Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors Aarestrup, Kim Nielsen, C. Koed, Anders 2002 https://orbit.dtu.dk/en/publications/bdcdaba0-9bc9-4880-b30b-b85c851a987e eng eng https://orbit.dtu.dk/en/publications/bdcdaba0-9bc9-4880-b30b-b85c851a987e info:eu-repo/semantics/restrictedAccess Aarestrup , K , Nielsen , C & Koed , A 2002 , ' Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors ' , Hydrobiologia , vol. 483 , no. 1-3 , pp. 95-102 . Habitat og klima article 2002 ftdtupubl 2024-05-01T00:13:55Z The downstream migration of Atlantic salmon (Salmo salar L.) and sea trout smolt (S. trutta L.) was investigated using radio telemetry in the spring of 1999 and 2000. Forty wild sea trout smolts, 20 F1 sea trout smolts, 20 hatchery salmon smolts and 20 salmon smolts from river stockings were radio tagged and released in the Danish River Lilleaa. The downstream migration of the different groups of fish was monitored by manual tracking and by three automatic listening stations. The downstream migration of radio tagged smolts of both species occurred concurrently with their untagged counterparts. The diel migration pattern of the radio tagged smolts was predominantly nocturnal in both species. Wild sea trout smolt migrated significantly faster than both the F1 trout and the introduced salmon. There was no correlation between net ground speed, gill Na+, K+-ATPase activity or fish length in any of the different groups. The migration speed of wild sea trout smolts was positively correlated with water discharge in both years. In F1 sea trout smolts, migration speed was positively correlated with temperature in 1999. The migration speed of salmon smolts did not correlate to any of the investigated parameters Article in Journal/Newspaper Atlantic salmon Salmo salar Technical University of Denmark: DTU Orbit |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Habitat og klima |
spellingShingle |
Habitat og klima Aarestrup, Kim Nielsen, C. Koed, Anders Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
topic_facet |
Habitat og klima |
description |
The downstream migration of Atlantic salmon (Salmo salar L.) and sea trout smolt (S. trutta L.) was investigated using radio telemetry in the spring of 1999 and 2000. Forty wild sea trout smolts, 20 F1 sea trout smolts, 20 hatchery salmon smolts and 20 salmon smolts from river stockings were radio tagged and released in the Danish River Lilleaa. The downstream migration of the different groups of fish was monitored by manual tracking and by three automatic listening stations. The downstream migration of radio tagged smolts of both species occurred concurrently with their untagged counterparts. The diel migration pattern of the radio tagged smolts was predominantly nocturnal in both species. Wild sea trout smolt migrated significantly faster than both the F1 trout and the introduced salmon. There was no correlation between net ground speed, gill Na+, K+-ATPase activity or fish length in any of the different groups. The migration speed of wild sea trout smolts was positively correlated with water discharge in both years. In F1 sea trout smolts, migration speed was positively correlated with temperature in 1999. The migration speed of salmon smolts did not correlate to any of the investigated parameters |
format |
Article in Journal/Newspaper |
author |
Aarestrup, Kim Nielsen, C. Koed, Anders |
author_facet |
Aarestrup, Kim Nielsen, C. Koed, Anders |
author_sort |
Aarestrup, Kim |
title |
Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
title_short |
Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
title_full |
Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
title_fullStr |
Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
title_full_unstemmed |
Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors |
title_sort |
net ground speed of downstream migrating radio-tagged atlantic salmon ( salmo salar l.) and brown trout ( salmo trutta l.) smolts in relation to environmental factors |
publishDate |
2002 |
url |
https://orbit.dtu.dk/en/publications/bdcdaba0-9bc9-4880-b30b-b85c851a987e |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aarestrup , K , Nielsen , C & Koed , A 2002 , ' Net ground speed of downstream migrating radio-tagged Atlantic salmon ( Salmo salar L.) and brown trout ( Salmo trutta L.) smolts in relation to environmental factors ' , Hydrobiologia , vol. 483 , no. 1-3 , pp. 95-102 . |
op_relation |
https://orbit.dtu.dk/en/publications/bdcdaba0-9bc9-4880-b30b-b85c851a987e |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1799476978060886016 |