Habitat use and migratory behaviour of pikeperch Sander lucioperca in Lithuanian and Latvian waters as inferred from otolith Sr:Ca ratios
Linas Lozys, Jen-Chieh Shiao, Yoshiyuki Iizuka, Atis Minde, Zilvinas Putys, Egle Jakubaviciute, Justas Dainys, Harry Gorfine, Wann-Nian Tzeng
ESTUARINE COASTAL AND SHELF SCIENCE | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Published : 2017
Determination of the geographic boundaries that define a stock is a key challenge in fisheries management. Acquiring an understanding of spatial distribution and migration patterns of pikeperch Sander lucioperca populations in the south-eastern Baltic Sea region would help to delineate the stocks and contribute towards sustainable exploitation of the population. In this study, habitat use and migratory behaviour of S. lucioperca were inferred from otolith Sr:Ca ratios obtained via an Electron Probe Micro-Analyzer. S. lucioperca collected from the inland Kaunas City water reservoir, where downstream migration is precluded by a hydro-power plant, consistently showed a freshwater signature in t..View full abstract
Awarded by Academia Sinica (Republic of China)
Awarded by Research Council of Lithuania under the National Research Programme 'Sustainability of agro-, forest and water ecosystems
We are grateful to the Lithuania-Latvia-Taiwan (Republic of China) Mutual Fund for financial support for field surveys in Lithuania and Latvia. The otolith analysis was supported by the Ministry of Science and Technology (former National Science Council) and Academia Sinica (Republic of China) (Contracts No. NSC 93-2313-B-002-114 and 99-2116-M-001-013). Data analysis and arrangement of this paper was funded by Research Council of Lithuania under the National Research Programme 'Sustainability of agro-, forest and water ecosystems (2015-2021)' (project No SIT-11/2015). We are grateful to B. M. Jessop for constructive suggestions, Ms. Hsieh Hui-Ho for her assistance on EPMA analysis.