Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Communications earth & environment
2025
|
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40486188/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1868266193687674882 |
|---|---|
| author | Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin |
| author_facet | Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin |
| collection | PubMed - marine biology |
| contents | Seasonal vertical migration of large polar copepods reinterpreted as a dispersal mechanism throughout the water column. Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin Seasonal vertical migration of large lipid-rich copepods is often described as a mass descent of animals when primary production ceases, with important implications for mesopelagic food webs and global carbon sequestration. This view ignores the existence of surface-resident individuals, but here we show that non-migrants can form a substantial part of the populations of polar migrant species. In the Central Arctic Ocean, the biomass-dominant was evenly distributed throughout the water column from November 2019 to March 2020, with ~20% of subadults and adult females remaining in the upper 200 m and ~41% migrating to 1000-2000 m. These vertical positions aligned with differences in the copepods' cholesterol content, which can enhance the tissue density at higher temperatures. Gonad development and the vertical distribution of their offspring indicate that both non-migrant and migrant females contribute to the population recruitment. We reinterpret copepod seasonal migration as a bet-hedging strategy that balances nutritional benefits near the surface with survival benefits at depth, and thereby contributes to the species' resilience under climatic change. |
| format | Artículo científico |
| id | pubmed_40486188 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Communications earth & environment |
| record_format | pubmed |
| spellingShingle | Seasonal vertical migration of large polar copepods reinterpreted as a dispersal mechanism throughout the water column. Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin Seasonal vertical migration of large polar copepods reinterpreted as a dispersal mechanism throughout the water column. Schmidt, Katrin Niehoff, Barbara Cornils, Astrid Hagen, Wilhelm Flores, Hauke Heuzé, Céline Welteke, Nahid Knϋppel, Nadine Dorschner, Sabrina Woll, Matthias Jones, Katie Laudone, Giuliano Campbell, Robert G Ashjian, Carin J Gelfman, Cecilia E Shoemaker, Katyanne M Jenkins, Rebecca Kvile, Kristina Øie Lebreton, Benoit Guillou, Gaël Hoppe, Clara J M Sakinan, Serdar Schaafsma, Fokje L Hildebrandt, Nicole Castellani, Giulia Belt, Simon T Fong, Allison A Atkinson, Angus Graeve, Martin Seasonal vertical migration of large lipid-rich copepods is often described as a mass descent of animals when primary production ceases, with important implications for mesopelagic food webs and global carbon sequestration. This view ignores the existence of surface-resident individuals, but here we show that non-migrants can form a substantial part of the populations of polar migrant species. In the Central Arctic Ocean, the biomass-dominant was evenly distributed throughout the water column from November 2019 to March 2020, with ~20% of subadults and adult females remaining in the upper 200 m and ~41% migrating to 1000-2000 m. These vertical positions aligned with differences in the copepods' cholesterol content, which can enhance the tissue density at higher temperatures. Gonad development and the vertical distribution of their offspring indicate that both non-migrant and migrant females contribute to the population recruitment. We reinterpret copepod seasonal migration as a bet-hedging strategy that balances nutritional benefits near the surface with survival benefits at depth, and thereby contributes to the species' resilience under climatic change. |
| title | Seasonal vertical migration of large polar copepods reinterpreted as a dispersal mechanism throughout the water column. |
| url | https://pubmed.ncbi.nlm.nih.gov/40486188/ |