Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio)
The area of influence of a baited trap of the type used in the southwestern Gulf of St. Lawrence snow crab fishery was studied by releasi ng tagged crabs at increasing distances from the bait and noting recaptures after fishing periods of 24 and 48 hr. For the shorter fishing period, the recapture r...
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1985
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Online Access: | https://semaphore.uqar.ca/id/eprint/1708/ https://semaphore.uqar.ca/id/eprint/1708/1/Jean-Claude_Brethes_et_al_mai1985.pdf |
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ftunivquebecar:oai:semaphore.uqar.ca:1708 2023-05-15T15:54:09+02:00 Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) Brêthes, Jean-Claude Bouchard, Roxane Desrosiers, Gaston 1985 application/pdf https://semaphore.uqar.ca/id/eprint/1708/ https://semaphore.uqar.ca/id/eprint/1708/1/Jean-Claude_Brethes_et_al_mai1985.pdf fr fre https://semaphore.uqar.ca/id/eprint/1708/1/Jean-Claude_Brethes_et_al_mai1985.pdf Brêthes, Jean-Claude et Bouchard, Roxane et Desrosiers, Gaston (1985). Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio). Journal of Northwest Atlantic Fishery Science, 6 (1). p. 37-42. Article Évalué par les pairs 1985 ftunivquebecar 2022-07-20T06:19:35Z The area of influence of a baited trap of the type used in the southwestern Gulf of St. Lawrence snow crab fishery was studied by releasi ng tagged crabs at increasing distances from the bait and noting recaptures after fishing periods of 24 and 48 hr. For the shorter fishing period, the recapture rate decreased with increasing distance of released crabs from the trap. The radius of the prospected area was estimated to be in the range of 100-140 m, with the radius of the effective fished area being about 50-70 m. Results from the48-hr experiment were inconclusive. The low recapture rates (maximum 5%) and the long distances travelled by the tagged crabs (up to 3,000 m in 48 hr) lead to the belief that biological factors, inasmuch as they interfere with the simple bait stimulus-response mechanism, play an important role in variation of catch success. The results of this study also indicated that the trap's influence extends over a greater area than has been suggested in previous studies. Article in Journal/Newspaper Chionoecetes opilio Snow crab Université du Québec à Rimouski (UQAR): Sémaphore |
institution |
Open Polar |
collection |
Université du Québec à Rimouski (UQAR): Sémaphore |
op_collection_id |
ftunivquebecar |
language |
French |
description |
The area of influence of a baited trap of the type used in the southwestern Gulf of St. Lawrence snow crab fishery was studied by releasi ng tagged crabs at increasing distances from the bait and noting recaptures after fishing periods of 24 and 48 hr. For the shorter fishing period, the recapture rate decreased with increasing distance of released crabs from the trap. The radius of the prospected area was estimated to be in the range of 100-140 m, with the radius of the effective fished area being about 50-70 m. Results from the48-hr experiment were inconclusive. The low recapture rates (maximum 5%) and the long distances travelled by the tagged crabs (up to 3,000 m in 48 hr) lead to the belief that biological factors, inasmuch as they interfere with the simple bait stimulus-response mechanism, play an important role in variation of catch success. The results of this study also indicated that the trap's influence extends over a greater area than has been suggested in previous studies. |
format |
Article in Journal/Newspaper |
author |
Brêthes, Jean-Claude Bouchard, Roxane Desrosiers, Gaston |
spellingShingle |
Brêthes, Jean-Claude Bouchard, Roxane Desrosiers, Gaston Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
author_facet |
Brêthes, Jean-Claude Bouchard, Roxane Desrosiers, Gaston |
author_sort |
Brêthes, Jean-Claude |
title |
Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
title_short |
Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
title_full |
Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
title_fullStr |
Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
title_full_unstemmed |
Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio) |
title_sort |
determination of the area prospected by a baited trap from a tagging and recapture experiment with snow crabs (chionoecetes opilio) |
publishDate |
1985 |
url |
https://semaphore.uqar.ca/id/eprint/1708/ https://semaphore.uqar.ca/id/eprint/1708/1/Jean-Claude_Brethes_et_al_mai1985.pdf |
genre |
Chionoecetes opilio Snow crab |
genre_facet |
Chionoecetes opilio Snow crab |
op_relation |
https://semaphore.uqar.ca/id/eprint/1708/1/Jean-Claude_Brethes_et_al_mai1985.pdf Brêthes, Jean-Claude et Bouchard, Roxane et Desrosiers, Gaston (1985). Determination of the Area Prospected by a Baited Trap from a Tagging and Recapture Experiment with Snow Crabs (Chionoecetes opilio). Journal of Northwest Atlantic Fishery Science, 6 (1). p. 37-42. |
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1766389324940574720 |