Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine
Abstract Understanding the influence of spawning behaviour on the fine-scale distribution of Atlantic cod is essential to the design of effective conservation measures. Laboratory studies suggest that spawning activity occurs primarily at night, yet no field studies have evaluated the influence of d...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsu040 http://academic.oup.com/icesjms/article-pdf/71/6/1474/29147294/fsu040.pdf |
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croxfordunivpr:10.1093/icesjms/fsu040 2024-05-12T08:00:54+00:00 Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine Dean, Micah J. Hoffman, William S. Zemeckis, Douglas R. Armstrong, Michael P. 2014 http://dx.doi.org/10.1093/icesjms/fsu040 http://academic.oup.com/icesjms/article-pdf/71/6/1474/29147294/fsu040.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 71, issue 6, page 1474-1489 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2014 croxfordunivpr https://doi.org/10.1093/icesjms/fsu040 2024-04-18T08:15:31Z Abstract Understanding the influence of spawning behaviour on the fine-scale distribution of Atlantic cod is essential to the design of effective conservation measures. Laboratory studies suggest that spawning activity occurs primarily at night, yet no field studies have evaluated the influence of diel period on the behaviour of individual wild spawning cod. Using an acoustic telemetry positioning system, the fine-scale movements of spawning cod were observed in situ as they returned to the same spawning location over consecutive seasons. The resulting data identify clear gender-based diel patterns in space use and aggregation behaviour among cod on a spawning ground. During the day, females remained aggregated in one small location that varied little within and between years. Males also aggregated during the day, but occupied a much larger adjacent area. At night, individual males sought out separate small territories while females generally remained near their daytime aggregation site, making periodic excursions into the surrounding area. These patterns were surprisingly stable over the 2 years of observation, indicating little interannual variability in spawning behaviour. This study provides an unprecedented examination of the natural spawning behaviour of Atlantic cod, and makes connections between earlier laboratory studies and field observations. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press ICES Journal of Marine Science 71 6 1474 1489 |
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Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Dean, Micah J. Hoffman, William S. Zemeckis, Douglas R. Armstrong, Michael P. Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Understanding the influence of spawning behaviour on the fine-scale distribution of Atlantic cod is essential to the design of effective conservation measures. Laboratory studies suggest that spawning activity occurs primarily at night, yet no field studies have evaluated the influence of diel period on the behaviour of individual wild spawning cod. Using an acoustic telemetry positioning system, the fine-scale movements of spawning cod were observed in situ as they returned to the same spawning location over consecutive seasons. The resulting data identify clear gender-based diel patterns in space use and aggregation behaviour among cod on a spawning ground. During the day, females remained aggregated in one small location that varied little within and between years. Males also aggregated during the day, but occupied a much larger adjacent area. At night, individual males sought out separate small territories while females generally remained near their daytime aggregation site, making periodic excursions into the surrounding area. These patterns were surprisingly stable over the 2 years of observation, indicating little interannual variability in spawning behaviour. This study provides an unprecedented examination of the natural spawning behaviour of Atlantic cod, and makes connections between earlier laboratory studies and field observations. |
format |
Article in Journal/Newspaper |
author |
Dean, Micah J. Hoffman, William S. Zemeckis, Douglas R. Armstrong, Michael P. |
author_facet |
Dean, Micah J. Hoffman, William S. Zemeckis, Douglas R. Armstrong, Michael P. |
author_sort |
Dean, Micah J. |
title |
Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
title_short |
Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
title_full |
Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
title_fullStr |
Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
title_full_unstemmed |
Fine-scale diel and gender-based patterns in behaviour of Atlantic cod (Gadus morhua) on a spawning ground in the Western Gulf of Maine |
title_sort |
fine-scale diel and gender-based patterns in behaviour of atlantic cod (gadus morhua) on a spawning ground in the western gulf of maine |
publisher |
Oxford University Press (OUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1093/icesjms/fsu040 http://academic.oup.com/icesjms/article-pdf/71/6/1474/29147294/fsu040.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 71, issue 6, page 1474-1489 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsu040 |
container_title |
ICES Journal of Marine Science |
container_volume |
71 |
container_issue |
6 |
container_start_page |
1474 |
op_container_end_page |
1489 |
_version_ |
1798842965255258112 |