Quantifying an overlooked aspect of partial migration using otolith microchemistry
Rohtla, M.; Matetski, L.; Taal, I.; Svirgsden, R.; Kesler, M.; Paiste, P.; Vetemaa, M. (2020). Quantifying an overlooked aspect of partial migration using otolith microchemistry. J. Fish Biol. 97(5): 1582-1585. https://dx.doi.org/10.1111/jfb.14522
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112; e-ISSN 1095-8649, more
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| Keyword |
Salmo trutta Linnaeus, 1758 [WoRMS]
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| Author keywords |
anadromy, Baltic Sea, brown trout, otolith microchemistry, resident |
| Authors | | Top |
- Rohtla, M.
- Matetski, L.
- Taal, I.
- Svirgsden, R.
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- Kesler, M.
- Paiste, P.
- Vetemaa, M.
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| Abstract |
For the first time, an overlooked aspect of partial migration was quantified using otolith microchemistry and brown trout, Salmo trutta, as a model species. Relative contributions of freshwater resident and anadromous female brown trout to mixed‐stock sea trout populations in the Baltic Sea were estimated. Out of 236 confirmed wild sea trout sampled around the coast of Estonia 88% were of anadromous maternal origin and 12% were of resident maternal origin. This novel finding underscores the importance of the resident contingent in maintaining the persistence and resilience of the migratory contingent. |
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