Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis
This study explored the spawning dynamics of southern calamary (Sepioteuthis australis) by estimating small-scale temporal and spatial variability in egg production in an area known to attract spawning aggregations. Surveys of the seagrass beds (Amphibolis antarctica) over 14 months determined the t...
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Online Access: | https://doi.org/10.1007/s00227-002-0975-6 http://ecite.utas.edu.au/26335 |
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ftunivtasecite:oai:ecite.utas.edu.au:26335 2023-05-15T13:59:07+02:00 Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis Moltschaniwskyj, NA Pecl, GT 2003 https://doi.org/10.1007/s00227-002-0975-6 http://ecite.utas.edu.au/26335 en eng Springer-Verlag http://dx.doi.org/10.1007/s00227-002-0975-6 Moltschaniwskyj, NA and Pecl, GT, Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis , Marine Biology, 142, (3) pp. 509-516. ISSN 0025-3162 (2003) [Refereed Article] http://ecite.utas.edu.au/26335 Biological Sciences Ecology Population Ecology Refereed Article PeerReviewed 2003 ftunivtasecite https://doi.org/10.1007/s00227-002-0975-6 2019-12-13T21:07:17Z This study explored the spawning dynamics of southern calamary (Sepioteuthis australis) by estimating small-scale temporal and spatial variability in egg production in an area known to attract spawning aggregations. Surveys of the seagrass beds (Amphibolis antarctica) over 14 months determined the timing and location of egg deposition, as well as estimating total egg production and loss of deposited egg masses from the spawning grounds. Egg laying in the inshore seagrass beds occurred predominantly during the austral spring and early summer. Egg production at one location (Hazards Bay) was very similar between the two years, but at the second location (Coles Bay) egg production was threefold less during the second summer. There was considerable spatial variability in egg production among seagrass beds within a kilometre of each other as well as within 10 kin. Variability in the use of seagrass beds by the squid during each summer could not be attributed to differences in seagrass density or vegetation cover. Losses of deposited egg masses in the A. antarctica beds were detected on two occasions. On the first occasion the loss was correlated with storms; however, the second and smaller loss of egg masses was not correlated with storm activity. Information about the spatial and temporal patterns of egg production was used to make recommendations about the use of fishing closures to protect spawning adults from over-fishing. Article in Journal/Newspaper Antarc* Antarctica eCite UTAS (University of Tasmania) Austral Marine Biology 142 3 509 516 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Population Ecology |
spellingShingle |
Biological Sciences Ecology Population Ecology Moltschaniwskyj, NA Pecl, GT Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
topic_facet |
Biological Sciences Ecology Population Ecology |
description |
This study explored the spawning dynamics of southern calamary (Sepioteuthis australis) by estimating small-scale temporal and spatial variability in egg production in an area known to attract spawning aggregations. Surveys of the seagrass beds (Amphibolis antarctica) over 14 months determined the timing and location of egg deposition, as well as estimating total egg production and loss of deposited egg masses from the spawning grounds. Egg laying in the inshore seagrass beds occurred predominantly during the austral spring and early summer. Egg production at one location (Hazards Bay) was very similar between the two years, but at the second location (Coles Bay) egg production was threefold less during the second summer. There was considerable spatial variability in egg production among seagrass beds within a kilometre of each other as well as within 10 kin. Variability in the use of seagrass beds by the squid during each summer could not be attributed to differences in seagrass density or vegetation cover. Losses of deposited egg masses in the A. antarctica beds were detected on two occasions. On the first occasion the loss was correlated with storms; however, the second and smaller loss of egg masses was not correlated with storm activity. Information about the spatial and temporal patterns of egg production was used to make recommendations about the use of fishing closures to protect spawning adults from over-fishing. |
format |
Article in Journal/Newspaper |
author |
Moltschaniwskyj, NA Pecl, GT |
author_facet |
Moltschaniwskyj, NA Pecl, GT |
author_sort |
Moltschaniwskyj, NA |
title |
Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
title_short |
Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
title_full |
Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
title_fullStr |
Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
title_full_unstemmed |
Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis |
title_sort |
small-scale spatial and temporal patterns of egg production by the temperate loliginid squid sepioteuthis australis |
publisher |
Springer-Verlag |
publishDate |
2003 |
url |
https://doi.org/10.1007/s00227-002-0975-6 http://ecite.utas.edu.au/26335 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://dx.doi.org/10.1007/s00227-002-0975-6 Moltschaniwskyj, NA and Pecl, GT, Small-scale spatial and temporal patterns of egg production by the temperate loliginid squid Sepioteuthis australis , Marine Biology, 142, (3) pp. 509-516. ISSN 0025-3162 (2003) [Refereed Article] http://ecite.utas.edu.au/26335 |
op_doi |
https://doi.org/10.1007/s00227-002-0975-6 |
container_title |
Marine Biology |
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142 |
container_issue |
3 |
container_start_page |
509 |
op_container_end_page |
516 |
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1766267529482731520 |