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Formal report series, containing results of research and monitoring carried out by Marine Scotland Science

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UK Open Government Licence (OGL)

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Swimming Depth of Sea Trout

Scottish Marine and Freshwater Science Vol 7 No 13

Data on swimming depth of sea trout Salmo trutta (L.) in Icelandic waters was extracted and collated into a suitable format for use in marine renewables risk assessment. The data shows that the fish are close to the surface much of the time, with some time being spent at greater depths.

doi: 
10.7489/1755-1
Citation: 
Sturlaugsson, J. (2016) Swimming Depth of Sea Trout. Scottish Marine and Freshwater Science Vol 7 No 13: 36pp.

Dataset Info

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FieldValue
Publisher
Modified Date
2017-05-09
Release Date
2016-05-09
Identifier
6cc67c7a-5709-4d3a-91c8-a5ef836e0f2e
Spatial / Geographical Coverage Location
Iceland
Temporal Coverage
Monday, January 1, 1996 - 00:00 to Wednesday, December 31, 2008 - 00:00
License
UK Open Government Licence (OGL)
Author
J Sturlaugsson
Data Dictionary

The sea trout were tagged in the rivers, and included both immature and mature fish. Most were captured by rod fishing and tagged and released the same day. The great majority of fish were tagged in the spring prior to their annual sea migration, although a few were tagged at their spawning grounds in the autumn. Most of the DSTs were attached externally using a modified Carlin method although, in a few instances, the DSTs were implanted into the peritoneal cavity. The manufacturer’s declared accuracy of depth measurements for the DSTs used in the studies was +/- 0.4% of selected depth range, which was 50 m. The accuracy of the temperature measurements was +/- 0.1°C and the accuracy of salinity measurements +/- 1 psu. The sampling rate differed between and within years, depending on the tag memory, tag type and the aim of the particular study. The densest (highest frequency) measurements were collected over shorter periods within the summer, when recording intervals of up to 5-10 seconds were used to obtain more detailed information on the vertical distribution and on the actual swimming between depth layers.

Contact Name
Marine Scotland Science
Contact Email
Public Access Level
Public