Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea
Highlights: • The stress response to salinity in subpopulations of the Baltic cod was examined. • Two different profiles of response to salinity were observed. • Changes in response profiles may be a functional adaptation to variable salinity. • Adaptation protects cod against stress during vertical...
Published in: | Journal of Experimental Marine Biology and Ecology |
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Language: | English |
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2016
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Online Access: | https://oceanrep.geomar.de/id/eprint/31650/ https://oceanrep.geomar.de/id/eprint/31650/1/Kijewska%20et%20al%202016_Adaptation%20to%20salinity%20in%20Atlantic%20cod%20from%20different%20regions%20of%20the%20Baltic%20Sea.pdf https://doi.org/10.1016/j.jembe.2016.02.003 |
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ftoceanrep:oai:oceanrep.geomar.de:31650 2023-05-15T15:27:10+02:00 Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea Kijewska, Agnieszka Kalamarz-Kubiak, Hanna Arciszewski, Bartłomiej Guellard, Tatiana Petereit, Christoph Wenne, Roman 2016-05 text https://oceanrep.geomar.de/id/eprint/31650/ https://oceanrep.geomar.de/id/eprint/31650/1/Kijewska%20et%20al%202016_Adaptation%20to%20salinity%20in%20Atlantic%20cod%20from%20different%20regions%20of%20the%20Baltic%20Sea.pdf https://doi.org/10.1016/j.jembe.2016.02.003 en eng Elsevier https://oceanrep.geomar.de/id/eprint/31650/1/Kijewska%20et%20al%202016_Adaptation%20to%20salinity%20in%20Atlantic%20cod%20from%20different%20regions%20of%20the%20Baltic%20Sea.pdf Kijewska, A., Kalamarz-Kubiak, H., Arciszewski, B., Guellard, T., Petereit, C. and Wenne, R. (2016) Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea. Open Access Journal of Experimental Marine Biology and Ecology, 478 . pp. 62-67. DOI 10.1016/j.jembe.2016.02.003 <https://doi.org/10.1016/j.jembe.2016.02.003>. doi:10.1016/j.jembe.2016.02.003 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1016/j.jembe.2016.02.003 2023-04-07T15:23:56Z Highlights: • The stress response to salinity in subpopulations of the Baltic cod was examined. • Two different profiles of response to salinity were observed. • Changes in response profiles may be a functional adaptation to variable salinity. • Adaptation protects cod against stress during vertical and long-distance migrations. • Salinity is a barrier maintaining the genetic and physiological separations of cod. Abstract: Atlantic cod (Gadus morhua) occur in marine water of different salinities: from oceanic waters at salinity of 35 to Baltic Sea waters where the lowest level of salinity reaches 5–6. The stress response to different salinities in the eastern and western Baltic cod populations was examined. Two genes of Na +, K + -ATPase 1a (atp1a) and heat shock protein 70 (hsp70) expression, plasma cortisol and osmolality were used as markers of osmotic stress to characterize the reaction profiles of two populations of G. morhua from the western and eastern parts of the Baltic Sea. Atlantic cod were sampled in November 2012 from western Kiel Bight (KIEL, salinity of 18) and eastern Gdańsk Bay (GDA, salinity of 8). Live fish were transported to the Marine Station of the University of Gdańsk in Hel and were settled in tanks (3500 L). Cod were kept at 10 °C in recirculated water, which simulated the natural salinities of the geographic source region of the fish. Results showed that in the reduced and elevated salinity water of the KIEL group, we observed no change in expression of atp1a and slightly increased expression of hsp70. In the GDA group, there were no significant changes of hsp70 expression but the level of atp1a was significantly increased in both salinities. In both groups, concentration of cortisol increased after exposure to elevated salinity, while in fish exposed to reduced salinity, a significantly higher concentration of cortisol was observed after 72 h. The high expression of atp1a that observed in the eastern group (GDA) supports the thesis of a genetic background to the adaptation to variable ... Article in Journal/Newspaper atlantic cod Gadus morhua OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Experimental Marine Biology and Ecology 478 62 67 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Highlights: • The stress response to salinity in subpopulations of the Baltic cod was examined. • Two different profiles of response to salinity were observed. • Changes in response profiles may be a functional adaptation to variable salinity. • Adaptation protects cod against stress during vertical and long-distance migrations. • Salinity is a barrier maintaining the genetic and physiological separations of cod. Abstract: Atlantic cod (Gadus morhua) occur in marine water of different salinities: from oceanic waters at salinity of 35 to Baltic Sea waters where the lowest level of salinity reaches 5–6. The stress response to different salinities in the eastern and western Baltic cod populations was examined. Two genes of Na +, K + -ATPase 1a (atp1a) and heat shock protein 70 (hsp70) expression, plasma cortisol and osmolality were used as markers of osmotic stress to characterize the reaction profiles of two populations of G. morhua from the western and eastern parts of the Baltic Sea. Atlantic cod were sampled in November 2012 from western Kiel Bight (KIEL, salinity of 18) and eastern Gdańsk Bay (GDA, salinity of 8). Live fish were transported to the Marine Station of the University of Gdańsk in Hel and were settled in tanks (3500 L). Cod were kept at 10 °C in recirculated water, which simulated the natural salinities of the geographic source region of the fish. Results showed that in the reduced and elevated salinity water of the KIEL group, we observed no change in expression of atp1a and slightly increased expression of hsp70. In the GDA group, there were no significant changes of hsp70 expression but the level of atp1a was significantly increased in both salinities. In both groups, concentration of cortisol increased after exposure to elevated salinity, while in fish exposed to reduced salinity, a significantly higher concentration of cortisol was observed after 72 h. The high expression of atp1a that observed in the eastern group (GDA) supports the thesis of a genetic background to the adaptation to variable ... |
format |
Article in Journal/Newspaper |
author |
Kijewska, Agnieszka Kalamarz-Kubiak, Hanna Arciszewski, Bartłomiej Guellard, Tatiana Petereit, Christoph Wenne, Roman |
spellingShingle |
Kijewska, Agnieszka Kalamarz-Kubiak, Hanna Arciszewski, Bartłomiej Guellard, Tatiana Petereit, Christoph Wenne, Roman Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
author_facet |
Kijewska, Agnieszka Kalamarz-Kubiak, Hanna Arciszewski, Bartłomiej Guellard, Tatiana Petereit, Christoph Wenne, Roman |
author_sort |
Kijewska, Agnieszka |
title |
Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
title_short |
Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
title_full |
Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
title_fullStr |
Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
title_full_unstemmed |
Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea |
title_sort |
adaptation to salinity in atlantic cod from different regions of the baltic sea |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/31650/ https://oceanrep.geomar.de/id/eprint/31650/1/Kijewska%20et%20al%202016_Adaptation%20to%20salinity%20in%20Atlantic%20cod%20from%20different%20regions%20of%20the%20Baltic%20Sea.pdf https://doi.org/10.1016/j.jembe.2016.02.003 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
https://oceanrep.geomar.de/id/eprint/31650/1/Kijewska%20et%20al%202016_Adaptation%20to%20salinity%20in%20Atlantic%20cod%20from%20different%20regions%20of%20the%20Baltic%20Sea.pdf Kijewska, A., Kalamarz-Kubiak, H., Arciszewski, B., Guellard, T., Petereit, C. and Wenne, R. (2016) Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea. Open Access Journal of Experimental Marine Biology and Ecology, 478 . pp. 62-67. DOI 10.1016/j.jembe.2016.02.003 <https://doi.org/10.1016/j.jembe.2016.02.003>. doi:10.1016/j.jembe.2016.02.003 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.jembe.2016.02.003 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
478 |
container_start_page |
62 |
op_container_end_page |
67 |
_version_ |
1766357626579320832 |