Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf
A one-dimensional model is developed to describe the vertical distribution of cod eggs and larvae on the northeastern Newfoundland Shelf. The model is dependent on egg buoyancy, temperature-dependent development, and age-dependent changes in density for eggs in good and poor condition. The model was...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1995
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Online Access: | http://dx.doi.org/10.1139/f95-789 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-789 |
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crcansciencepubl:10.1139/f95-789 2023-12-17T10:44:12+01:00 Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf Anderson, John T. Young, Brad de 1995 http://dx.doi.org/10.1139/f95-789 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-789 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 9, page 1978-1989 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1995 crcansciencepubl https://doi.org/10.1139/f95-789 2023-11-19T13:39:12Z A one-dimensional model is developed to describe the vertical distribution of cod eggs and larvae on the northeastern Newfoundland Shelf. The model is dependent on egg buoyancy, temperature-dependent development, and age-dependent changes in density for eggs in good and poor condition. The model was fit to physical oceanographic data from the inner and outer shelf collected in 1991. Output from the model compared favourably with field observations. Cod eggs (stages I to III) were bimodally distributed above and below 100 m depth. Late stage eggs (stage IV) and larvae (5–6 mm) were only abundant in surface waters (<50 m). There was a progression from deeper to shallower depths as cod eggs developed through to larvae. Cod eggs observed deeper in the water column were thought to be in poor condition and were probably sinking. The model demonstrates that the vertical distribution of cod eggs is sensitive to changes in water temperature, water density (salinity), and egg condition. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 52 9 1978 1989 |
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 Anderson, John T. Young, Brad de Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A one-dimensional model is developed to describe the vertical distribution of cod eggs and larvae on the northeastern Newfoundland Shelf. The model is dependent on egg buoyancy, temperature-dependent development, and age-dependent changes in density for eggs in good and poor condition. The model was fit to physical oceanographic data from the inner and outer shelf collected in 1991. Output from the model compared favourably with field observations. Cod eggs (stages I to III) were bimodally distributed above and below 100 m depth. Late stage eggs (stage IV) and larvae (5–6 mm) were only abundant in surface waters (<50 m). There was a progression from deeper to shallower depths as cod eggs developed through to larvae. Cod eggs observed deeper in the water column were thought to be in poor condition and were probably sinking. The model demonstrates that the vertical distribution of cod eggs is sensitive to changes in water temperature, water density (salinity), and egg condition. |
format |
Article in Journal/Newspaper |
author |
Anderson, John T. Young, Brad de |
author_facet |
Anderson, John T. Young, Brad de |
author_sort |
Anderson, John T. |
title |
Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
title_short |
Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
title_full |
Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
title_fullStr |
Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
title_full_unstemmed |
Application of a one-dimensional model to vertical distributions of cod eggs on the northeastern Newfoundland Shelf |
title_sort |
application of a one-dimensional model to vertical distributions of cod eggs on the northeastern newfoundland shelf |
publisher |
Canadian Science Publishing |
publishDate |
1995 |
url |
http://dx.doi.org/10.1139/f95-789 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-789 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 9, page 1978-1989 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f95-789 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
52 |
container_issue |
9 |
container_start_page |
1978 |
op_container_end_page |
1989 |
_version_ |
1785561398608134144 |