Instruments for Measuring Subice Algal Profiles and Productivity in situ
Instruments have been developed for the in situ measurement of concentration and productivity of bottom ice algal layers in Resolute Passage, eastern Canadian Arctic. Measurements are accomplished by deploying an instrument on an arm articulated remotely through a hole in the ice, sampling the subic...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1993
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Online Access: | http://dx.doi.org/10.1139/f93-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f93-041 |
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crcansciencepubl:10.1139/f93-041 2023-12-17T10:26:09+01:00 Instruments for Measuring Subice Algal Profiles and Productivity in situ Herman, A. W. Knox, D. F. Conrad, J. Mitchell, M. R. 1993 http://dx.doi.org/10.1139/f93-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f93-041 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 50, issue 2, page 359-369 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1993 crcansciencepubl https://doi.org/10.1139/f93-041 2023-11-19T13:38:41Z Instruments have been developed for the in situ measurement of concentration and productivity of bottom ice algal layers in Resolute Passage, eastern Canadian Arctic. Measurements are accomplished by deploying an instrument on an arm articulated remotely through a hole in the ice, sampling the subice surface, and finally recovering the instrument and sample. The first instrument is an incubation system that is used to measure in situ productivity of a subice core. Results show the extent and range of productivity in bottom ice, with low and high biomass at the commencement of the algal bloom and near the end of the bloom period, respectively. The second instrument is a reflectance meter that can be used to measure chlorophyll profiles at the subice surface. The meter was calibrated against measured chlorophyll concentrations of extracted cores. After calibration the instrument can be used to measure integrated chlorophyll (milligrams per square metre) and profiles (milligrams per cubic metre) rapidly and synoptically. Deployment of the arm coupled with a plankton pump sampler is also briefly described. Article in Journal/Newspaper Arctic Canadian Science Publishing (via Crossref) Arctic Resolute Passage ENVELOPE(-95.585,-95.585,74.702,74.702) Canadian Journal of Fisheries and Aquatic Sciences 50 2 359 369 |
institution |
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 Herman, A. W. Knox, D. F. Conrad, J. Mitchell, M. R. Instruments for Measuring Subice Algal Profiles and Productivity in situ |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Instruments have been developed for the in situ measurement of concentration and productivity of bottom ice algal layers in Resolute Passage, eastern Canadian Arctic. Measurements are accomplished by deploying an instrument on an arm articulated remotely through a hole in the ice, sampling the subice surface, and finally recovering the instrument and sample. The first instrument is an incubation system that is used to measure in situ productivity of a subice core. Results show the extent and range of productivity in bottom ice, with low and high biomass at the commencement of the algal bloom and near the end of the bloom period, respectively. The second instrument is a reflectance meter that can be used to measure chlorophyll profiles at the subice surface. The meter was calibrated against measured chlorophyll concentrations of extracted cores. After calibration the instrument can be used to measure integrated chlorophyll (milligrams per square metre) and profiles (milligrams per cubic metre) rapidly and synoptically. Deployment of the arm coupled with a plankton pump sampler is also briefly described. |
format |
Article in Journal/Newspaper |
author |
Herman, A. W. Knox, D. F. Conrad, J. Mitchell, M. R. |
author_facet |
Herman, A. W. Knox, D. F. Conrad, J. Mitchell, M. R. |
author_sort |
Herman, A. W. |
title |
Instruments for Measuring Subice Algal Profiles and Productivity in situ |
title_short |
Instruments for Measuring Subice Algal Profiles and Productivity in situ |
title_full |
Instruments for Measuring Subice Algal Profiles and Productivity in situ |
title_fullStr |
Instruments for Measuring Subice Algal Profiles and Productivity in situ |
title_full_unstemmed |
Instruments for Measuring Subice Algal Profiles and Productivity in situ |
title_sort |
instruments for measuring subice algal profiles and productivity in situ |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/f93-041 http://www.nrcresearchpress.com/doi/pdf/10.1139/f93-041 |
long_lat |
ENVELOPE(-95.585,-95.585,74.702,74.702) |
geographic |
Arctic Resolute Passage |
geographic_facet |
Arctic Resolute Passage |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 50, issue 2, page 359-369 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f93-041 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
50 |
container_issue |
2 |
container_start_page |
359 |
op_container_end_page |
369 |
_version_ |
1785577858734751744 |