Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic
Abstract Kilada, R. W., Campana S. E., and Roddick, D. 2007. Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic. ICES Journal of Marine Science, 64: 31–38. The age structure of offshore (Sable Bank) and inshore (St Mary's Bay) populati...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2006
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsl001 http://academic.oup.com/icesjms/article-pdf/64/1/31/29126762/fsl001.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsl001 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsl001 2023-12-31T10:04:24+01:00 Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic Kilada, Raouf W. Campana, Steven E. Roddick, Dale 2006 http://dx.doi.org/10.1093/icesjms/fsl001 http://academic.oup.com/icesjms/article-pdf/64/1/31/29126762/fsl001.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 64, issue 1, page 31-38 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2006 croxfordunivpr https://doi.org/10.1093/icesjms/fsl001 2023-12-06T08:54:00Z Abstract Kilada, R. W., Campana S. E., and Roddick, D. 2007. Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic. ICES Journal of Marine Science, 64: 31–38. The age structure of offshore (Sable Bank) and inshore (St Mary's Bay) populations of eastern Canadian ocean quahogs (Arctica islandica), and of a northwestern Iceland population, is investigated. Age estimates for eastern Canadian ocean quahogs were validated through analysis of bomb-produced 14C in quahog shell growth increments deposited before, during, and after the atmospheric atomic bomb testing periods of the 1950s and 1960s. Delta 14C from shells with presumed birthdates between the late 1950s and 1970s clearly reflects the sharp increase in oceanic radiocarbon attributable to nuclear testing. The results validate our age interpretations of Sable Bank quahogs to an age of 45 y, and support longevity estimates of more than 200 y for the same population. Longevity calculations for the other populations exceeded 60 y. Von Bertalanffy growth parameters were estimated for the three populations; the growth rate of all three was relatively rapid for the first 20–30 y of life, but thereafter was very slow. The instantaneous rate of natural mortality (M), calculated using the age–frequency distribution of the unexploited populations, was estimated to be 0.03 and 0.10 for the Sable Bank and St Mary's Bay populations, respectively. Article in Journal/Newspaper Arctica islandica Iceland Ocean quahog Oxford University Press (via Crossref) ICES Journal of Marine Science 64 1 31 38 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
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 Kilada, Raouf W. Campana, Steven E. Roddick, Dale Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Kilada, R. W., Campana S. E., and Roddick, D. 2007. Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic. ICES Journal of Marine Science, 64: 31–38. The age structure of offshore (Sable Bank) and inshore (St Mary's Bay) populations of eastern Canadian ocean quahogs (Arctica islandica), and of a northwestern Iceland population, is investigated. Age estimates for eastern Canadian ocean quahogs were validated through analysis of bomb-produced 14C in quahog shell growth increments deposited before, during, and after the atmospheric atomic bomb testing periods of the 1950s and 1960s. Delta 14C from shells with presumed birthdates between the late 1950s and 1970s clearly reflects the sharp increase in oceanic radiocarbon attributable to nuclear testing. The results validate our age interpretations of Sable Bank quahogs to an age of 45 y, and support longevity estimates of more than 200 y for the same population. Longevity calculations for the other populations exceeded 60 y. Von Bertalanffy growth parameters were estimated for the three populations; the growth rate of all three was relatively rapid for the first 20–30 y of life, but thereafter was very slow. The instantaneous rate of natural mortality (M), calculated using the age–frequency distribution of the unexploited populations, was estimated to be 0.03 and 0.10 for the Sable Bank and St Mary's Bay populations, respectively. |
format |
Article in Journal/Newspaper |
author |
Kilada, Raouf W. Campana, Steven E. Roddick, Dale |
author_facet |
Kilada, Raouf W. Campana, Steven E. Roddick, Dale |
author_sort |
Kilada, Raouf W. |
title |
Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
title_short |
Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
title_full |
Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
title_fullStr |
Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
title_full_unstemmed |
Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic |
title_sort |
validated age, growth, and mortality estimates of the ocean quahog (arctica islandica) in the western atlantic |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1093/icesjms/fsl001 http://academic.oup.com/icesjms/article-pdf/64/1/31/29126762/fsl001.pdf |
genre |
Arctica islandica Iceland Ocean quahog |
genre_facet |
Arctica islandica Iceland Ocean quahog |
op_source |
ICES Journal of Marine Science volume 64, issue 1, page 31-38 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsl001 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
1 |
container_start_page |
31 |
op_container_end_page |
38 |
_version_ |
1786832693180235776 |