Estimating the proportion of river and sea spawning whitefish in catches from the brackish Gulf of Bothnia (Baltic Sea) by gill raker counting, genotyping and otolith chemistry analysis
European whitefish (Coregonus lavaretus) is a commercially and recreationally important species in the Gulf of Bothnia (Figure 1), where the salinity of the surface water increases from ~2 ‰ to ~6 ‰ in the north-south (~725 km) direction. Two sympatric ecotypes with similar outer features occur: sta...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Frontiers Media S.A.
2015-11-01
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Series: | Frontiers in Marine Science |
Subjects: | |
Online Access: | http://journal.frontiersin.org/Journal/10.3389/conf.FMARS.2015.03.00171/full |