Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate
This paper reviews the information available on the population genetics and systematics of krill (Euphausiidae, Crustacea), integrating the published data with new data collected in our laboratory. Phylogenetic analysis of several Antarctic and sub-Antarctic Euphausia species indicates the importanc...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f00-166 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-166 |
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crcansciencepubl:10.1139/f00-166 2024-05-19T07:28:50+00:00 Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate Zane, Lorenzo Patarnello, Tomaso 2000 http://dx.doi.org/10.1139/f00-166 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-166 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue S3, page 16-23 ISSN 0706-652X 1205-7533 journal-article 2000 crcansciencepubl https://doi.org/10.1139/f00-166 2024-04-25T06:52:00Z This paper reviews the information available on the population genetics and systematics of krill (Euphausiidae, Crustacea), integrating the published data with new data collected in our laboratory. Phylogenetic analysis of several Antarctic and sub-Antarctic Euphausia species indicates the importance of dispersal in determining the present-day geographic distribution. Dating speciation events suggest that the formation of the Antarctic Convergence, the oceanographic barrier isolating the Southern Ocean, may have played a role in separating the ancestral Antarctic and sub-Antarctic lineages. Intraspecific data show that the Antarctic krill (Euphausia superba) is characterized by weak genetic differentiation, whereas the northern krill (Meganyctiphanes norvegica) is more structured showing discrete genetic pools. This difference can be explained, at least partly, by the oceanographic conditions in the areas inhabited by the two species. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 57 S3 16 23 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
This paper reviews the information available on the population genetics and systematics of krill (Euphausiidae, Crustacea), integrating the published data with new data collected in our laboratory. Phylogenetic analysis of several Antarctic and sub-Antarctic Euphausia species indicates the importance of dispersal in determining the present-day geographic distribution. Dating speciation events suggest that the formation of the Antarctic Convergence, the oceanographic barrier isolating the Southern Ocean, may have played a role in separating the ancestral Antarctic and sub-Antarctic lineages. Intraspecific data show that the Antarctic krill (Euphausia superba) is characterized by weak genetic differentiation, whereas the northern krill (Meganyctiphanes norvegica) is more structured showing discrete genetic pools. This difference can be explained, at least partly, by the oceanographic conditions in the areas inhabited by the two species. |
format |
Article in Journal/Newspaper |
author |
Zane, Lorenzo Patarnello, Tomaso |
spellingShingle |
Zane, Lorenzo Patarnello, Tomaso Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
author_facet |
Zane, Lorenzo Patarnello, Tomaso |
author_sort |
Zane, Lorenzo |
title |
Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
title_short |
Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
title_full |
Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
title_fullStr |
Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
title_full_unstemmed |
Krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
title_sort |
krill: a possible model for investigating the effects of ocean currents on the genetic structure of a pelagic invertebrate |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/f00-166 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-166 |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue S3, page 16-23 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f00-166 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
57 |
container_issue |
S3 |
container_start_page |
16 |
op_container_end_page |
23 |
_version_ |
1799476184090673152 |