Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada
Wild lobster (Homarus americanus) abundance was monitored before, during, and after salmon (Salmo salar) aquaculture production in a bay on Grand Manan Island, New Brunswick, Canada, in an 8-year survey, 2008 to 2015. Diver transects and free-area spot-dives were used to measure the carapace length...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2017-0547 2024-09-15T18:33:03+00:00 Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada Grant, Jon Simone, Michelle Daggett, Tara 2019 http://dx.doi.org/10.1139/cjfas-2017-0547 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0547 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0547 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 76, issue 7, page 1096-1102 ISSN 0706-652X 1205-7533 journal-article 2019 crcansciencepubl https://doi.org/10.1139/cjfas-2017-0547 2024-08-22T04:08:44Z Wild lobster (Homarus americanus) abundance was monitored before, during, and after salmon (Salmo salar) aquaculture production in a bay on Grand Manan Island, New Brunswick, Canada, in an 8-year survey, 2008 to 2015. Diver transects and free-area spot-dives were used to measure the carapace length and determine sex (including berried state) of each lobster encountered both inside (farm) and outside (reference) the lease boundaries. In pairwise comparisons of each sampling date, there was no significant difference between the number of lobsters inside the salmon farming area versus a nearby reference site and no significant difference in the number of berried females inside or out of the farm lease area. Combining data from all lobster surveys (farm and reference sites) indicated an increase over 8 years, similar in slope to the increase of the trap fishery in Lobster Fishing Area (LFA) 38. These results indicate that the fish farm had no obvious impact on lobster density at any point in the salmon production cycle and that inshore lobster abundance followed trends similar to those of the general fishery of LFA 38. Article in Journal/Newspaper Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 76 7 1096 1102 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Wild lobster (Homarus americanus) abundance was monitored before, during, and after salmon (Salmo salar) aquaculture production in a bay on Grand Manan Island, New Brunswick, Canada, in an 8-year survey, 2008 to 2015. Diver transects and free-area spot-dives were used to measure the carapace length and determine sex (including berried state) of each lobster encountered both inside (farm) and outside (reference) the lease boundaries. In pairwise comparisons of each sampling date, there was no significant difference between the number of lobsters inside the salmon farming area versus a nearby reference site and no significant difference in the number of berried females inside or out of the farm lease area. Combining data from all lobster surveys (farm and reference sites) indicated an increase over 8 years, similar in slope to the increase of the trap fishery in Lobster Fishing Area (LFA) 38. These results indicate that the fish farm had no obvious impact on lobster density at any point in the salmon production cycle and that inshore lobster abundance followed trends similar to those of the general fishery of LFA 38. |
format |
Article in Journal/Newspaper |
author |
Grant, Jon Simone, Michelle Daggett, Tara |
spellingShingle |
Grant, Jon Simone, Michelle Daggett, Tara Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
author_facet |
Grant, Jon Simone, Michelle Daggett, Tara |
author_sort |
Grant, Jon |
title |
Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
title_short |
Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
title_full |
Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
title_fullStr |
Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
title_full_unstemmed |
Long-term studies of lobster abundance at a salmon aquaculture site, eastern Canada |
title_sort |
long-term studies of lobster abundance at a salmon aquaculture site, eastern canada |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
http://dx.doi.org/10.1139/cjfas-2017-0547 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0547 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0547 |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 76, issue 7, page 1096-1102 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2017-0547 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
7 |
container_start_page |
1096 |
op_container_end_page |
1102 |
_version_ |
1810474805249441792 |