The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment
We use a simple model of temperature‐dependent egg development and mortality to develop several hypotheses concerning the effect of temperature on the occurrence of eggs of Atlantic cod, Gadus morhua , in Placentia Bay, Newfoundland. Predictions from this exploratory model were tested through a seri...
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Online Access: | http://dx.doi.org/10.1046/j.1365-2419.2001.00179.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.2001.00179.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.2001.00179.x |
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crwiley:10.1046/j.1365-2419.2001.00179.x 2024-06-02T08:03:09+00:00 The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment Bradbury, Ian R. Snelgrove, Paul V. R. Fraser, Sandra 2001 http://dx.doi.org/10.1046/j.1365-2419.2001.00179.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.2001.00179.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.2001.00179.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 10, issue 4, page 342-352 ISSN 1054-6006 1365-2419 journal-article 2001 crwiley https://doi.org/10.1046/j.1365-2419.2001.00179.x 2024-05-03T11:28:03Z We use a simple model of temperature‐dependent egg development and mortality to develop several hypotheses concerning the effect of temperature on the occurrence of eggs of Atlantic cod, Gadus morhua , in Placentia Bay, Newfoundland. Predictions from this exploratory model were tested through a series of synoptic ichthyoplankton surveys throughout spawning and postspawning periods during 1997 and 1998. Although several egg mortality relationships were explored through the simulation, a constant mortality rate best represented the pattern observed in the two years of data. Peaks in late stage egg densities occurred in August of both 1997 and 1998 and were apparently decoupled from egg production peaks in April. We observed a decrease in mortality and the distance dispersed during egg development with increases in water temperature. We suggest that the effects of predation are small relative to the advective effects within this system, and that the interaction between advection and temperature‐dependent vital rates of eggs may have dramatic consequences for coastal retention of propagules produced by inshore spawning events. Article in Journal/Newspaper atlantic cod Gadus morhua Newfoundland Wiley Online Library Fisheries Oceanography 10 4 342 352 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
We use a simple model of temperature‐dependent egg development and mortality to develop several hypotheses concerning the effect of temperature on the occurrence of eggs of Atlantic cod, Gadus morhua , in Placentia Bay, Newfoundland. Predictions from this exploratory model were tested through a series of synoptic ichthyoplankton surveys throughout spawning and postspawning periods during 1997 and 1998. Although several egg mortality relationships were explored through the simulation, a constant mortality rate best represented the pattern observed in the two years of data. Peaks in late stage egg densities occurred in August of both 1997 and 1998 and were apparently decoupled from egg production peaks in April. We observed a decrease in mortality and the distance dispersed during egg development with increases in water temperature. We suggest that the effects of predation are small relative to the advective effects within this system, and that the interaction between advection and temperature‐dependent vital rates of eggs may have dramatic consequences for coastal retention of propagules produced by inshore spawning events. |
format |
Article in Journal/Newspaper |
author |
Bradbury, Ian R. Snelgrove, Paul V. R. Fraser, Sandra |
spellingShingle |
Bradbury, Ian R. Snelgrove, Paul V. R. Fraser, Sandra The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
author_facet |
Bradbury, Ian R. Snelgrove, Paul V. R. Fraser, Sandra |
author_sort |
Bradbury, Ian R. |
title |
The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
title_short |
The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
title_full |
The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
title_fullStr |
The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
title_full_unstemmed |
The influence of temperature on advective loss of Atlantic cod ( Gadus morhua) eggs from the inshore environment |
title_sort |
influence of temperature on advective loss of atlantic cod ( gadus morhua) eggs from the inshore environment |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.1365-2419.2001.00179.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.2001.00179.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.2001.00179.x |
genre |
atlantic cod Gadus morhua Newfoundland |
genre_facet |
atlantic cod Gadus morhua Newfoundland |
op_source |
Fisheries Oceanography volume 10, issue 4, page 342-352 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2419.2001.00179.x |
container_title |
Fisheries Oceanography |
container_volume |
10 |
container_issue |
4 |
container_start_page |
342 |
op_container_end_page |
352 |
_version_ |
1800747617243627520 |