Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf
The life cycle of Calanus finmarchicus on and around Western Bank, 19911992, was essentially annual; the overwintered generation (G 0 ) produced G 1 that developed at temperature-dependent rates and then largely disappeared after June to winter as late copepodids at depth. However, a small fraction...
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2001
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crcansciencepubl:10.1139/f01-007 2023-12-17T10:28:26+01:00 Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf McLaren, Ian A Head, Erica Sameoto, D D 2001 http://dx.doi.org/10.1139/f01-007 http://www.nrcresearchpress.com/doi/pdf/10.1139/f01-007 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 58, issue 4, page 659-670 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2001 crcansciencepubl https://doi.org/10.1139/f01-007 2023-11-19T13:38:17Z The life cycle of Calanus finmarchicus on and around Western Bank, 19911992, was essentially annual; the overwintered generation (G 0 ) produced G 1 that developed at temperature-dependent rates and then largely disappeared after June to winter as late copepodids at depth. However, a small fraction of G 1 matured to spawn a less rapidly developing G 2 that outnumbered G 1 in the depths of Emerald Basin in autumn 1990. Estimated mortality on the central Scotian Shelf for G 1 from egg to copepodid stage 5 in June was ~4%·day 1 but subsequently for G 1 and G 2 was nearly constant at ~1%·day 1 . Populations on Western Bank mostly derived from reproduction by overwintered G 2 on the Scotian Shelf. Larger populations in Emerald Basin in 19871988 were augmented from advected animals enabled to diapause there at depth and on Emerald Bank by inputs from beyond the shelf break, ultimately from farther north. Our observations and analyses match the physical circulation in the region. Article in Journal/Newspaper Calanus finmarchicus Canadian Science Publishing (via Crossref) Emerald Basin ENVELOPE(162.500,162.500,-54.000,-54.000) Canadian Journal of Fisheries and Aquatic Sciences 58 4 659 670 |
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 McLaren, Ian A Head, Erica Sameoto, D D Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The life cycle of Calanus finmarchicus on and around Western Bank, 19911992, was essentially annual; the overwintered generation (G 0 ) produced G 1 that developed at temperature-dependent rates and then largely disappeared after June to winter as late copepodids at depth. However, a small fraction of G 1 matured to spawn a less rapidly developing G 2 that outnumbered G 1 in the depths of Emerald Basin in autumn 1990. Estimated mortality on the central Scotian Shelf for G 1 from egg to copepodid stage 5 in June was ~4%·day 1 but subsequently for G 1 and G 2 was nearly constant at ~1%·day 1 . Populations on Western Bank mostly derived from reproduction by overwintered G 2 on the Scotian Shelf. Larger populations in Emerald Basin in 19871988 were augmented from advected animals enabled to diapause there at depth and on Emerald Bank by inputs from beyond the shelf break, ultimately from farther north. Our observations and analyses match the physical circulation in the region. |
format |
Article in Journal/Newspaper |
author |
McLaren, Ian A Head, Erica Sameoto, D D |
author_facet |
McLaren, Ian A Head, Erica Sameoto, D D |
author_sort |
McLaren, Ian A |
title |
Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
title_short |
Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
title_full |
Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
title_fullStr |
Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
title_full_unstemmed |
Life cycles and seasonal distributions of Calanus finmarchicus on the central Scotian Shelf |
title_sort |
life cycles and seasonal distributions of calanus finmarchicus on the central scotian shelf |
publisher |
Canadian Science Publishing |
publishDate |
2001 |
url |
http://dx.doi.org/10.1139/f01-007 http://www.nrcresearchpress.com/doi/pdf/10.1139/f01-007 |
long_lat |
ENVELOPE(162.500,162.500,-54.000,-54.000) |
geographic |
Emerald Basin |
geographic_facet |
Emerald Basin |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 58, issue 4, page 659-670 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f01-007 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
58 |
container_issue |
4 |
container_start_page |
659 |
op_container_end_page |
670 |
_version_ |
1785580547470262272 |