An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait)
Echo integration, a multistage plankton sampler (BIONESS), and a bottom trawl were used to examine the horizontal and vertical distribution of shrimp (Pandalus montagui) near Resolution Island in eastern Hudson Strait. Shrimp were concentrated in two locations within the study area and they maintain...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1992
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Online Access: | http://dx.doi.org/10.1139/f92-095 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-095 |
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crcansciencepubl:10.1139/f92-095 2023-12-17T10:31:24+01:00 An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) Crawford, R. E. Hudon, C. Parsons, D. G. 1992 http://dx.doi.org/10.1139/f92-095 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-095 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 49, issue 5, page 842-856 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1992 crcansciencepubl https://doi.org/10.1139/f92-095 2023-11-19T13:38:44Z Echo integration, a multistage plankton sampler (BIONESS), and a bottom trawl were used to examine the horizontal and vertical distribution of shrimp (Pandalus montagui) near Resolution Island in eastern Hudson Strait. Shrimp were concentrated in two locations within the study area and they maintained this pattern of horizontal distribution for at least 7 d. Acoustic observations revealed a scale of horizontal patchiness that was obscured by the "homogenization effect" of sampling by bottom trawl and plankton net. The shrimp underwent a nocturnal vertical migration with other zooplankton to > 200 m from the bottom and a subsequent downward migration during early daylight hours. This diel migration resulted in reduced availability of shrimp to the bottom trawl at night. Timing of the migrations varied, possibly as a result of interaction with oceanographic processes. Article in Journal/Newspaper Hudson Strait Resolution Island Canadian Science Publishing (via Crossref) Hudson Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) Resolution Island ENVELOPE(-64.981,-64.981,61.551,61.551) Canadian Journal of Fisheries and Aquatic Sciences 49 5 842 856 |
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 Crawford, R. E. Hudon, C. Parsons, D. G. An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Echo integration, a multistage plankton sampler (BIONESS), and a bottom trawl were used to examine the horizontal and vertical distribution of shrimp (Pandalus montagui) near Resolution Island in eastern Hudson Strait. Shrimp were concentrated in two locations within the study area and they maintained this pattern of horizontal distribution for at least 7 d. Acoustic observations revealed a scale of horizontal patchiness that was obscured by the "homogenization effect" of sampling by bottom trawl and plankton net. The shrimp underwent a nocturnal vertical migration with other zooplankton to > 200 m from the bottom and a subsequent downward migration during early daylight hours. This diel migration resulted in reduced availability of shrimp to the bottom trawl at night. Timing of the migrations varied, possibly as a result of interaction with oceanographic processes. |
format |
Article in Journal/Newspaper |
author |
Crawford, R. E. Hudon, C. Parsons, D. G. |
author_facet |
Crawford, R. E. Hudon, C. Parsons, D. G. |
author_sort |
Crawford, R. E. |
title |
An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
title_short |
An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
title_full |
An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
title_fullStr |
An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
title_full_unstemmed |
An Acoustic Study of Shrimp ( Pandalus montagui ) Distribution near Resolution Island (Eastern Hudson Strait) |
title_sort |
acoustic study of shrimp ( pandalus montagui ) distribution near resolution island (eastern hudson strait) |
publisher |
Canadian Science Publishing |
publishDate |
1992 |
url |
http://dx.doi.org/10.1139/f92-095 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-095 |
long_lat |
ENVELOPE(-70.000,-70.000,62.000,62.000) ENVELOPE(-64.981,-64.981,61.551,61.551) |
geographic |
Hudson Hudson Strait Resolution Island |
geographic_facet |
Hudson Hudson Strait Resolution Island |
genre |
Hudson Strait Resolution Island |
genre_facet |
Hudson Strait Resolution Island |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 49, issue 5, page 842-856 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f92-095 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
49 |
container_issue |
5 |
container_start_page |
842 |
op_container_end_page |
856 |
_version_ |
1785584706356510720 |