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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
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Ontogenetic vertical migration of the mesopelagic carnivorous copepod Paraeuchaeta spp. is related to their increase in body mass
| Title: | Ontogenetic vertical migration of the mesopelagic carnivorous copepod Paraeuchaeta spp. is related to their increase in body mass |
| Authors: | Yamaguchi, Atsushi Browse this author →KAKEN DB | | Ashjian, Carin J. Browse this author | | Campbell, Robert G. Browse this author | | Abe, Yoshiyuki Browse this author |
| Keywords: | copepods | | vertical distribution | | mesopelagic | | Paraeuchaeta | | moltincrement | | Arctic |
| Issue Date: | 5-Nov-2019 |
| Publisher: | Oxford University Press |
| Journal Title: | Journal of plankton research |
| Volume: | 41 |
| Issue: | 5 |
| Start Page: | 791 |
| End Page: | 797 |
| Publisher DOI: | 10.1093/plankt/fbz051 |
| Abstract: | Two dominant mesopelagic carnivorous Paraeuchaeta copepods, Paraeuchaeta glacialis in the western Arctic Ocean and Paraeuchaeta elongata in the western subarctic Pacific, exhibited specialized ontogenetic vertical migration patterns with deeper occurrences of early copepodids (C1) and adults (C6F/M) and shallower occurrences of older copepodids C3-C5. Molt increments in body masses (wet, dry and ash-free dry masses) exhibited highly significant negative correlations with habitat depth. These facts suggest that both Paraeuchaeta species spend their reproductive (C6F/M) and early developmental (C1) stages in deeper layers to avoid predation and migrate upwards to where prey is abundant during the middle-late copepodid stages (C3-C5) to achieve greater mass growth. |
| Rights: | This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Plankton Research following peer review. The version of record Atsushi Yamaguchi, Carin J Ashjian, Robert G Campbell, Yoshiyuki Abe, Ontogenetic vertical migration of the mesopelagic carnivorous copepod Paraeuchaeta spp. is related to their increase in body mass, Journal of Plankton Research, Volume 41, Issue 5, September 2019, Pages 791–797 is available online at: https://doi.org/10.1093/plankt/fbz051. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/79702 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 山口 篤
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