Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages
Comparison of catch rates between small (20-cm, 0.165-mm-mesh nets) and large (61-cm, 0.333- and 0.505-mm-mesh nets) plankton samplers was carried out for Calanus finmarchicus copepodite stages sampled simultaneously during six different times. It is concluded that C. finmarchicus stages CI and CII...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1991
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Online Access: | http://dx.doi.org/10.1139/f91-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-042 |
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crcansciencepubl:10.1139/f91-042 2024-04-07T07:51:36+00:00 Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages Anderson, John T. Warren, William G. 1991 http://dx.doi.org/10.1139/f91-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-042 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 48, issue 2, page 303-308 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1991 crcansciencepubl https://doi.org/10.1139/f91-042 2024-03-08T00:37:50Z Comparison of catch rates between small (20-cm, 0.165-mm-mesh nets) and large (61-cm, 0.333- and 0.505-mm-mesh nets) plankton samplers was carried out for Calanus finmarchicus copepodite stages sampled simultaneously during six different times. It is concluded that C. finmarchicus stages CI and CII were undersampled in 0.333-mm-mesh samples, while stages CIV–CVI were undersampled in 0.165-mm-mesh samples. Stage CIII catch rates were not different for these two samplers. Comparison of catch rates between 0.165- and 0.505-mm-mesh samples demonstrated that stages CI–CIII were undersampled in the 0.505-mm-mesh samples, stages CV and CVI were undersampled in the 0.165-mm-mesh samples, and there was no difference in catch rates for stage CIV. There was evidence of substantial variability in results among cruises for most stages. This is attributed to inherent variability associated with plankton sampling due to their patchy distribution. Due to the large variation in catch rates between these different samplers, it is recommended that the appropriate sized sampler be used to collect different stages of C. finmarchicus copepodites rather than attempting to correct for catch rate differences among different sized samplers. Article in Journal/Newspaper Calanus finmarchicus Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 48 2 303 308 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Anderson, John T. Warren, William G. Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Comparison of catch rates between small (20-cm, 0.165-mm-mesh nets) and large (61-cm, 0.333- and 0.505-mm-mesh nets) plankton samplers was carried out for Calanus finmarchicus copepodite stages sampled simultaneously during six different times. It is concluded that C. finmarchicus stages CI and CII were undersampled in 0.333-mm-mesh samples, while stages CIV–CVI were undersampled in 0.165-mm-mesh samples. Stage CIII catch rates were not different for these two samplers. Comparison of catch rates between 0.165- and 0.505-mm-mesh samples demonstrated that stages CI–CIII were undersampled in the 0.505-mm-mesh samples, stages CV and CVI were undersampled in the 0.165-mm-mesh samples, and there was no difference in catch rates for stage CIV. There was evidence of substantial variability in results among cruises for most stages. This is attributed to inherent variability associated with plankton sampling due to their patchy distribution. Due to the large variation in catch rates between these different samplers, it is recommended that the appropriate sized sampler be used to collect different stages of C. finmarchicus copepodites rather than attempting to correct for catch rate differences among different sized samplers. |
format |
Article in Journal/Newspaper |
author |
Anderson, John T. Warren, William G. |
author_facet |
Anderson, John T. Warren, William G. |
author_sort |
Anderson, John T. |
title |
Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
title_short |
Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
title_full |
Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
title_fullStr |
Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
title_full_unstemmed |
Comparison of Catch Rates among Small and Large Bongo Sampler for Calanus finmarchicus Copepodite Stages |
title_sort |
comparison of catch rates among small and large bongo sampler for calanus finmarchicus copepodite stages |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/f91-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-042 |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 48, issue 2, page 303-308 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f91-042 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
48 |
container_issue |
2 |
container_start_page |
303 |
op_container_end_page |
308 |
_version_ |
1795666604746342400 |