Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus)
American lobster (Homarus americanus) landings have more than quadrupled in the last two decades (1990–2010), coinciding with the collapse of Gulf of Maine groundfish fisheries such as Atlantic cod (Gadus morhua). Recently there has been speculation that the release of lobster from predatory control...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
2013
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Online Access: | http://dx.doi.org/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0065 |
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crcansciencepubl:10.1139/cjfas-2013-0065 2024-06-23T07:51:03+00:00 Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) McMahan, Marissa D. Brady, Damian C. Cowan, Diane F. Grabowski, Jonathan H. Sherwood, Graham D. Jech, Josef Michael 2013 http://dx.doi.org/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0065 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 70, issue 11, page 1625-1634 ISSN 0706-652X 1205-7533 journal-article 2013 crcansciencepubl https://doi.org/10.1139/cjfas-2013-0065 2024-06-06T04:11:14Z American lobster (Homarus americanus) landings have more than quadrupled in the last two decades (1990–2010), coinciding with the collapse of Gulf of Maine groundfish fisheries such as Atlantic cod (Gadus morhua). Recently there has been speculation that the release of lobster from predatory control may have resulted in both lower predation rates and increased foraging areas. We used fine-scale acoustic telemetry within a 200 m × 250 m field enclosure to test the hypothesis that cod induce lobsters to decrease movement and seek refuge. We found a large amount of variation in the behavioral response of individual lobsters to predators; however, the addition of cod into the enclosure reduced maximum daily home range area and significantly reduced the distance traveled from shelter habitat area for all individuals. When predators were removed from the enclosure, lobsters responded by increasing home range area and significantly increasing the distance traveled from shelter habitat area. These results represent the first experimental evidence for American lobster range contraction and subsequent expansion in the presence and absence of cod, respectively. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 70 11 1625 1634 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
American lobster (Homarus americanus) landings have more than quadrupled in the last two decades (1990–2010), coinciding with the collapse of Gulf of Maine groundfish fisheries such as Atlantic cod (Gadus morhua). Recently there has been speculation that the release of lobster from predatory control may have resulted in both lower predation rates and increased foraging areas. We used fine-scale acoustic telemetry within a 200 m × 250 m field enclosure to test the hypothesis that cod induce lobsters to decrease movement and seek refuge. We found a large amount of variation in the behavioral response of individual lobsters to predators; however, the addition of cod into the enclosure reduced maximum daily home range area and significantly reduced the distance traveled from shelter habitat area for all individuals. When predators were removed from the enclosure, lobsters responded by increasing home range area and significantly increasing the distance traveled from shelter habitat area. These results represent the first experimental evidence for American lobster range contraction and subsequent expansion in the presence and absence of cod, respectively. |
author2 |
Jech, Josef Michael |
format |
Article in Journal/Newspaper |
author |
McMahan, Marissa D. Brady, Damian C. Cowan, Diane F. Grabowski, Jonathan H. Sherwood, Graham D. |
spellingShingle |
McMahan, Marissa D. Brady, Damian C. Cowan, Diane F. Grabowski, Jonathan H. Sherwood, Graham D. Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
author_facet |
McMahan, Marissa D. Brady, Damian C. Cowan, Diane F. Grabowski, Jonathan H. Sherwood, Graham D. |
author_sort |
McMahan, Marissa D. |
title |
Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
title_short |
Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
title_full |
Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
title_fullStr |
Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
title_full_unstemmed |
Using acoustic telemetry to observe the effects of a groundfish predator (Atlantic cod, Gadus morhua) on movement of the American lobster ( Homarus americanus) |
title_sort |
using acoustic telemetry to observe the effects of a groundfish predator (atlantic cod, gadus morhua) on movement of the american lobster ( homarus americanus) |
publisher |
Canadian Science Publishing |
publishDate |
2013 |
url |
http://dx.doi.org/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0065 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0065 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 70, issue 11, page 1625-1634 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2013-0065 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
70 |
container_issue |
11 |
container_start_page |
1625 |
op_container_end_page |
1634 |
_version_ |
1802642044767698944 |