Movement of adult Atlantic salmon in the Usk estuary, Wales

A total of 56 salmon was tagged in the Usk estuary using combined acoustic and radio tags. Those fish migrating within the estuary oscillated with the tide over c. 10 km, being towards the seaward end at low water and moving upstream on the flood tide. Fish migrating through the estuary moved upstre...

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Bibliographic Details
Published in:Journal of fish biology 1998-07, Vol.53 (1), p.221-225
Main Authors: Aprahamian, M. W., Jones, G. O., Gough, P. J.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
estuary
Fundamental and applied biological sciences. Psychology
migration
Salmo salar
Usk
Vertebrata
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Summary:A total of 56 salmon was tagged in the Usk estuary using combined acoustic and radio tags. Those fish migrating within the estuary oscillated with the tide over c. 10 km, being towards the seaward end at low water and moving upstream on the flood tide. Fish migrating through the estuary moved upstream on the flood tide and stemmed displacement downstream during the ebb. These findings, together with information on the hydrodynamics of the estuary, indicate that the fish utilize tidal currents to migrate passively in their preferred direction.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.1998.tb00123.x