Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures
Predation studies in underwater cage enclosures on natural substrates were conducted in 1979 and 1980 to assess the propensity of adult American lobsters, Homarus americanus, and rock crabs, Cancer irroratus, to prey upon sea scallops, Placopecten magellanicus. In 1979, the initial prey by both pred...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
1982
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Online Access: | http://dx.doi.org/10.1139/f82-068 http://www.nrcresearchpress.com/doi/pdf/10.1139/f82-068 |
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crcansciencepubl:10.1139/f82-068 2023-12-17T10:33:26+01:00 Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures Jamieson, G. S. Stone, H. Etter, M. 1982 http://dx.doi.org/10.1139/f82-068 http://www.nrcresearchpress.com/doi/pdf/10.1139/f82-068 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 39, issue 3, page 499-505 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1982 crcansciencepubl https://doi.org/10.1139/f82-068 2023-11-19T13:39:41Z Predation studies in underwater cage enclosures on natural substrates were conducted in 1979 and 1980 to assess the propensity of adult American lobsters, Homarus americanus, and rock crabs, Cancer irroratus, to prey upon sea scallops, Placopecten magellanicus. In 1979, the initial prey by both predator species was large, embedded horse mussels (Modiolus modiolus). In the enclosure containing lobsters, this was followed by lobster cannibalism and, finally, when lobster density was reduced, predation on large sea scallops (80–110 mm shell height). No cannibalism or predation on large scallops occurred in the rock crab enclosure. In 1980, small scallops (40–55 mm shell height) were presented to lobsters and rock crabs; predation occurred regardless of predator density. Large sea scallops and unembedded horse mussels were consumed when crustacean densities approached natural levels. These studies demonstrate that small sea scallops and embedded horse mussels can be readily consumed by lobsters and rock crabs under field conditions, but that natural predation of large scallops by either rock crabs or lobsters is of lesser magnitude.Key words: sea scallops, crabs, lobsters, predation, prey selectivity Article in Journal/Newspaper Modiolus modiolus Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 39 3 499 505 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Jamieson, G. S. Stone, H. Etter, M. Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Predation studies in underwater cage enclosures on natural substrates were conducted in 1979 and 1980 to assess the propensity of adult American lobsters, Homarus americanus, and rock crabs, Cancer irroratus, to prey upon sea scallops, Placopecten magellanicus. In 1979, the initial prey by both predator species was large, embedded horse mussels (Modiolus modiolus). In the enclosure containing lobsters, this was followed by lobster cannibalism and, finally, when lobster density was reduced, predation on large sea scallops (80–110 mm shell height). No cannibalism or predation on large scallops occurred in the rock crab enclosure. In 1980, small scallops (40–55 mm shell height) were presented to lobsters and rock crabs; predation occurred regardless of predator density. Large sea scallops and unembedded horse mussels were consumed when crustacean densities approached natural levels. These studies demonstrate that small sea scallops and embedded horse mussels can be readily consumed by lobsters and rock crabs under field conditions, but that natural predation of large scallops by either rock crabs or lobsters is of lesser magnitude.Key words: sea scallops, crabs, lobsters, predation, prey selectivity |
format |
Article in Journal/Newspaper |
author |
Jamieson, G. S. Stone, H. Etter, M. |
author_facet |
Jamieson, G. S. Stone, H. Etter, M. |
author_sort |
Jamieson, G. S. |
title |
Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
title_short |
Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
title_full |
Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
title_fullStr |
Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
title_full_unstemmed |
Predation of Sea Scallops ( Placopecten magellanicus ) by Lobsters ( Homarus americanus ) and Rock Crabs ( Cancer irroratus ) in Underwater Cage Enclosures |
title_sort |
predation of sea scallops ( placopecten magellanicus ) by lobsters ( homarus americanus ) and rock crabs ( cancer irroratus ) in underwater cage enclosures |
publisher |
Canadian Science Publishing |
publishDate |
1982 |
url |
http://dx.doi.org/10.1139/f82-068 http://www.nrcresearchpress.com/doi/pdf/10.1139/f82-068 |
genre |
Modiolus modiolus |
genre_facet |
Modiolus modiolus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 39, issue 3, page 499-505 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f82-068 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
39 |
container_issue |
3 |
container_start_page |
499 |
op_container_end_page |
505 |
_version_ |
1785587434459758592 |