Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths
Spawning habitat of pike (Esox lucius) in the Baltic Sea include brackish water bays, brooks and rivers. Elevated salinity concentrations are one of several stressors that might increase the use and importance of freshwater habitats for spawning. In the Baltic Sea, one of the largest brackish seas i...
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ftulundlup:oai:lup.lub.lu.se:ec851a82-275e-48d4-a95a-2d507c5ff655 2023-05-15T15:47:17+02:00 Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths Engstedt, Olof Stenroth, Patrik Larsson, Per Ljunggren, Lars Elfman, Mikael 2010 https://lup.lub.lu.se/record/1773510 https://doi.org/10.1007/s10641-010-9686-x eng eng Springer https://lup.lub.lu.se/record/1773510 http://dx.doi.org/10.1007/s10641-010-9686-x wos:000284976500030 scopus:78149409951 89(3-4), pp 547-555 (2010) ISSN: 0378-1909 Subatomic Physics Anadromous Strontium Natal origin Otoliths Pike Baltic Sea contributiontobookanthology/conference info:eu-repo/semantics/conferencePaper text 2010 ftulundlup https://doi.org/10.1007/s10641-010-9686-x 2023-02-01T23:35:32Z Spawning habitat of pike (Esox lucius) in the Baltic Sea include brackish water bays, brooks and rivers. Elevated salinity concentrations are one of several stressors that might increase the use and importance of freshwater habitats for spawning. In the Baltic Sea, one of the largest brackish seas in the world, freshwater species like pike, perch (Perca fluviatilis), whitefish (Coregonus sp), bream (Abramis brama), ide (Leuciscus idus), roach (Rutilus rutilus) and burbot (Lola iota) all undertake spawning migrations to freshwater. However, over the last decades populations densities of these species have declined, and recruitment failure has been argued to be at least part of the problem. The importance of brooks and rivers as spawning areas for these species have not been quantified and set in relation to spawning success in brackish bays. In this study, we collected 175 adult pike (Esox lucius) on their foraging grounds in the sea. Fish were collected in two regions on the Baltic coast, more than 600 km apart. Subsequently we determined their origin (freshwater or marine) using otolith chemistry. Sagittal otoliths were analysed for strontium using the PIXE-method. The results show that 80 of the 175 pike were recruited in freshwater, and several of the larger specimens showed reoccurring migration behaviour. Data show that freshwater is an important recruitment habitat for Baltic Sea pike, suggesting that habitat improvements in rivers entering the Baltic Sea might significantly contribute to population restoration. Conference Object Burbot Lund University Publications (LUP) Brama ENVELOPE(-58.467,-58.467,-62.208,-62.208) Lola ENVELOPE(-44.700,-44.700,-60.717,-60.717) Environmental Biology of Fishes 89 3-4 547 555 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Subatomic Physics Anadromous Strontium Natal origin Otoliths Pike Baltic Sea |
spellingShingle |
Subatomic Physics Anadromous Strontium Natal origin Otoliths Pike Baltic Sea Engstedt, Olof Stenroth, Patrik Larsson, Per Ljunggren, Lars Elfman, Mikael Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
topic_facet |
Subatomic Physics Anadromous Strontium Natal origin Otoliths Pike Baltic Sea |
description |
Spawning habitat of pike (Esox lucius) in the Baltic Sea include brackish water bays, brooks and rivers. Elevated salinity concentrations are one of several stressors that might increase the use and importance of freshwater habitats for spawning. In the Baltic Sea, one of the largest brackish seas in the world, freshwater species like pike, perch (Perca fluviatilis), whitefish (Coregonus sp), bream (Abramis brama), ide (Leuciscus idus), roach (Rutilus rutilus) and burbot (Lola iota) all undertake spawning migrations to freshwater. However, over the last decades populations densities of these species have declined, and recruitment failure has been argued to be at least part of the problem. The importance of brooks and rivers as spawning areas for these species have not been quantified and set in relation to spawning success in brackish bays. In this study, we collected 175 adult pike (Esox lucius) on their foraging grounds in the sea. Fish were collected in two regions on the Baltic coast, more than 600 km apart. Subsequently we determined their origin (freshwater or marine) using otolith chemistry. Sagittal otoliths were analysed for strontium using the PIXE-method. The results show that 80 of the 175 pike were recruited in freshwater, and several of the larger specimens showed reoccurring migration behaviour. Data show that freshwater is an important recruitment habitat for Baltic Sea pike, suggesting that habitat improvements in rivers entering the Baltic Sea might significantly contribute to population restoration. |
format |
Conference Object |
author |
Engstedt, Olof Stenroth, Patrik Larsson, Per Ljunggren, Lars Elfman, Mikael |
author_facet |
Engstedt, Olof Stenroth, Patrik Larsson, Per Ljunggren, Lars Elfman, Mikael |
author_sort |
Engstedt, Olof |
title |
Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
title_short |
Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
title_full |
Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
title_fullStr |
Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
title_full_unstemmed |
Assessment of natal origin of pike (Esox lucius) in the Baltic Sea using Sr:Ca in otoliths |
title_sort |
assessment of natal origin of pike (esox lucius) in the baltic sea using sr:ca in otoliths |
publisher |
Springer |
publishDate |
2010 |
url |
https://lup.lub.lu.se/record/1773510 https://doi.org/10.1007/s10641-010-9686-x |
long_lat |
ENVELOPE(-58.467,-58.467,-62.208,-62.208) ENVELOPE(-44.700,-44.700,-60.717,-60.717) |
geographic |
Brama Lola |
geographic_facet |
Brama Lola |
genre |
Burbot |
genre_facet |
Burbot |
op_source |
89(3-4), pp 547-555 (2010) ISSN: 0378-1909 |
op_relation |
https://lup.lub.lu.se/record/1773510 http://dx.doi.org/10.1007/s10641-010-9686-x wos:000284976500030 scopus:78149409951 |
op_doi |
https://doi.org/10.1007/s10641-010-9686-x |
container_title |
Environmental Biology of Fishes |
container_volume |
89 |
container_issue |
3-4 |
container_start_page |
547 |
op_container_end_page |
555 |
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1766382075985788928 |