Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey
Abstract Capelin ( Mallotus villosus ) is both an important commercial and ecological resource of the North Atlantic subpolar region. Two decades ago, the stock distribution around Iceland drastically changed. During autumn, which corresponds to the main feeding period, the capelin stock was previou...
Published in: | Environmental DNA |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/edn3.415 https://onlinelibrary.wiley.com/doi/pdf/10.1002/edn3.415 |
id |
crwiley:10.1002/edn3.415 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/edn3.415 2024-06-02T08:07:35+00:00 Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey Pampoulie, Christophe Singh, Warsha Guðnason, Kristinn Bárðarson, Birkir Ólafsdóttir, Guðbjörg Þórarinsson, Þorri Sveinsson, Sæmundur Gíslason, Davið 2023 http://dx.doi.org/10.1002/edn3.415 https://onlinelibrary.wiley.com/doi/pdf/10.1002/edn3.415 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Environmental DNA volume 6, issue 1 ISSN 2637-4943 2637-4943 journal-article 2023 crwiley https://doi.org/10.1002/edn3.415 2024-05-03T11:23:24Z Abstract Capelin ( Mallotus villosus ) is both an important commercial and ecological resource of the North Atlantic subpolar region. Two decades ago, the stock distribution around Iceland drastically changed. During autumn, which corresponds to the main feeding period, the capelin stock was previously located between the North of Iceland and the Jan Mayen area. Since the beginning of 2000s, the feeding aggregation has been located at the east coast of Greenland, inducing slight changes in the timing and route of the capelin spawning migration along the Icelandic shelf, and therefore in the catches. Changes in the distribution of capelin around Iceland made it both more difficult and expensive to assess the distribution of the stock with current survey methods. Here, we compare environmental DNA (eDNA) data to the acoustic data collected during the autumn monitoring survey, which leads to a preliminary estimation of the stock size. eDNA samples were collected at five different depths and were analyzed both horizontally across latitudes and longitudes and vertically across depth profiles. We detected eDNA in most of the locations where acoustic data detected capelin. Generalized linear models suggested that eDNA concentrations can be used as a proxy for the detection and quantification of capelin. The horizontal distribution of eDNA observed during both years corresponds with the horizontal distribution of capelin registered with the acoustic approach, while the vertical distribution indicated both effects of oceanic currents and diel vertical migration on eDNA detection and quantification. Article in Journal/Newspaper Greenland Iceland Jan Mayen North Atlantic Wiley Online Library Greenland Jan Mayen Environmental DNA |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Capelin ( Mallotus villosus ) is both an important commercial and ecological resource of the North Atlantic subpolar region. Two decades ago, the stock distribution around Iceland drastically changed. During autumn, which corresponds to the main feeding period, the capelin stock was previously located between the North of Iceland and the Jan Mayen area. Since the beginning of 2000s, the feeding aggregation has been located at the east coast of Greenland, inducing slight changes in the timing and route of the capelin spawning migration along the Icelandic shelf, and therefore in the catches. Changes in the distribution of capelin around Iceland made it both more difficult and expensive to assess the distribution of the stock with current survey methods. Here, we compare environmental DNA (eDNA) data to the acoustic data collected during the autumn monitoring survey, which leads to a preliminary estimation of the stock size. eDNA samples were collected at five different depths and were analyzed both horizontally across latitudes and longitudes and vertically across depth profiles. We detected eDNA in most of the locations where acoustic data detected capelin. Generalized linear models suggested that eDNA concentrations can be used as a proxy for the detection and quantification of capelin. The horizontal distribution of eDNA observed during both years corresponds with the horizontal distribution of capelin registered with the acoustic approach, while the vertical distribution indicated both effects of oceanic currents and diel vertical migration on eDNA detection and quantification. |
format |
Article in Journal/Newspaper |
author |
Pampoulie, Christophe Singh, Warsha Guðnason, Kristinn Bárðarson, Birkir Ólafsdóttir, Guðbjörg Þórarinsson, Þorri Sveinsson, Sæmundur Gíslason, Davið |
spellingShingle |
Pampoulie, Christophe Singh, Warsha Guðnason, Kristinn Bárðarson, Birkir Ólafsdóttir, Guðbjörg Þórarinsson, Þorri Sveinsson, Sæmundur Gíslason, Davið Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
author_facet |
Pampoulie, Christophe Singh, Warsha Guðnason, Kristinn Bárðarson, Birkir Ólafsdóttir, Guðbjörg Þórarinsson, Þorri Sveinsson, Sæmundur Gíslason, Davið |
author_sort |
Pampoulie, Christophe |
title |
Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
title_short |
Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
title_full |
Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
title_fullStr |
Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
title_full_unstemmed |
Detection and distribution of the North Atlantic capelin ( Mallotus villosus) using environmental DNA—comparison with data from the main fishery management survey |
title_sort |
detection and distribution of the north atlantic capelin ( mallotus villosus) using environmental dna—comparison with data from the main fishery management survey |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/edn3.415 https://onlinelibrary.wiley.com/doi/pdf/10.1002/edn3.415 |
geographic |
Greenland Jan Mayen |
geographic_facet |
Greenland Jan Mayen |
genre |
Greenland Iceland Jan Mayen North Atlantic |
genre_facet |
Greenland Iceland Jan Mayen North Atlantic |
op_source |
Environmental DNA volume 6, issue 1 ISSN 2637-4943 2637-4943 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1002/edn3.415 |
container_title |
Environmental DNA |
_version_ |
1800752685885947904 |