Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic
We present an objective method for identifying associations between environmental (habitat) conditions and the distributions of marine fishes using survey data. The method tests the null hypothesis of a random association between fish distribution and habitat conditions. We apply this method to bott...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1994
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Online Access: | http://dx.doi.org/10.1139/f94-061 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-061 |
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crcansciencepubl:10.1139/f94-061 2024-10-13T14:05:55+00:00 Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic Perry, R. Ian Smith, Stephen J. 1994 http://dx.doi.org/10.1139/f94-061 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-061 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue 3, page 589-602 ISSN 0706-652X 1205-7533 journal-article 1994 crcansciencepubl https://doi.org/10.1139/f94-061 2024-09-27T04:07:25Z We present an objective method for identifying associations between environmental (habitat) conditions and the distributions of marine fishes using survey data. The method tests the null hypothesis of a random association between fish distribution and habitat conditions. We apply this method to bottom depth, temperature, and salinity data and to the distributions of four groundfish species (yellowtail flounder (Pleuronectes ferruginens, previously Limanda ferruginea), haddock (Melanogrammus aeglefinus), silver hake (Merluccius bilinearis), and Atlantic cod (Gadus morhua)) from trawl surveys of the eastern Scotian Shelf (northwest Atlantic) conducted in winter/spring (March) and summer (July) 1979–84. Haddock and silver hake maintained similar temperatures in winter and summer by changing their depth distributions (temperature-keepers), with haddock generally at cooler temperatures than silver hake. Yellowtail flounder (a depth-keeper) maintained similar depths between seasons while tolerating a wide range of temperatures and salinities. Atlantic cod were not consistently associated with particular depths in either sprang or summer, and we were unable to distinguish between temperature or salinity as a single factor modifying their distributions, perhaps because of age-related effects. Identification of persistent habitat associations of marine fishes provides an opportunity to improve fisheries management procedures. Article in Journal/Newspaper atlantic cod Gadus morhua Northwest Atlantic Canadian Science Publishing Hake ENVELOPE(15.612,15.612,66.797,66.797) Canadian Journal of Fisheries and Aquatic Sciences 51 3 589 602 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
We present an objective method for identifying associations between environmental (habitat) conditions and the distributions of marine fishes using survey data. The method tests the null hypothesis of a random association between fish distribution and habitat conditions. We apply this method to bottom depth, temperature, and salinity data and to the distributions of four groundfish species (yellowtail flounder (Pleuronectes ferruginens, previously Limanda ferruginea), haddock (Melanogrammus aeglefinus), silver hake (Merluccius bilinearis), and Atlantic cod (Gadus morhua)) from trawl surveys of the eastern Scotian Shelf (northwest Atlantic) conducted in winter/spring (March) and summer (July) 1979–84. Haddock and silver hake maintained similar temperatures in winter and summer by changing their depth distributions (temperature-keepers), with haddock generally at cooler temperatures than silver hake. Yellowtail flounder (a depth-keeper) maintained similar depths between seasons while tolerating a wide range of temperatures and salinities. Atlantic cod were not consistently associated with particular depths in either sprang or summer, and we were unable to distinguish between temperature or salinity as a single factor modifying their distributions, perhaps because of age-related effects. Identification of persistent habitat associations of marine fishes provides an opportunity to improve fisheries management procedures. |
format |
Article in Journal/Newspaper |
author |
Perry, R. Ian Smith, Stephen J. |
spellingShingle |
Perry, R. Ian Smith, Stephen J. Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
author_facet |
Perry, R. Ian Smith, Stephen J. |
author_sort |
Perry, R. Ian |
title |
Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
title_short |
Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
title_full |
Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
title_fullStr |
Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
title_full_unstemmed |
Identifying Habitat Associations of Marine Fishes Using Survey Data: An Application to the Northwest Atlantic |
title_sort |
identifying habitat associations of marine fishes using survey data: an application to the northwest atlantic |
publisher |
Canadian Science Publishing |
publishDate |
1994 |
url |
http://dx.doi.org/10.1139/f94-061 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-061 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
atlantic cod Gadus morhua Northwest Atlantic |
genre_facet |
atlantic cod Gadus morhua Northwest Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue 3, page 589-602 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f94-061 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
51 |
container_issue |
3 |
container_start_page |
589 |
op_container_end_page |
602 |
_version_ |
1812811957361704960 |