Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland
Abstract We used otolith microstructure analysis to reconstruct the growth histories of larval radiated shanny (Ulvaria subbifurcata) collected over a 2-week period in Trinity Bay, Newfoundland. A dynamic 3-dimensional, eddy-resolving circulation model of the region provided larval drift patterns, w...
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Language: | English |
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Oxford University Press (OUP)
2003
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Online Access: | http://dx.doi.org/10.1016/s1054-3139(03)00019-5 http://academic.oup.com/icesjms/article-pdf/60/2/243/29118803/60-2-243.pdf |
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croxfordunivpr:10.1016/s1054-3139(03)00019-5 2024-10-13T14:09:07+00:00 Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland Baumann, Hannes Pepin, Pierre Davidson, Fraser J.M Mowbray, Fran Schnack, Dietrich Dower, John F 2003 http://dx.doi.org/10.1016/s1054-3139(03)00019-5 http://academic.oup.com/icesjms/article-pdf/60/2/243/29118803/60-2-243.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 60, issue 2, page 243-258 ISSN 1095-9289 1054-3139 journal-article 2003 croxfordunivpr https://doi.org/10.1016/s1054-3139(03)00019-5 2024-09-17T04:27:49Z Abstract We used otolith microstructure analysis to reconstruct the growth histories of larval radiated shanny (Ulvaria subbifurcata) collected over a 2-week period in Trinity Bay, Newfoundland. A dynamic 3-dimensional, eddy-resolving circulation model of the region provided larval drift patterns, which were combined with measurements of temperature and zooplankton abundance to assess the environmental history of the larvae. The abundance of juvenile and adult capelin (Mallotus villosus), the dominant planktivorous fish in this area, was monitored using five hydroacoustic surveys. The goal was to determine whether environmental histories are helpful in explaining spatial and temporal differences in larval shanny growth, measured as cumulative distribution functions (CDF) of growth rates. We found evidence for a selective loss of slower growing individuals and recognized considerable spatial differences in the CDF of larval growth rates. Consistent patterns in capelin abundance suggested that faster growing survivors, sampled at the end of the 2-week period, developed in areas of low predator densities. A dome-shaped relationship between temperature and larval growth was observed, explaining a significant but small amount of the overall variability (14%). Effects of experienced prey concentrations on larval growth rates could not be demonstrated. Article in Journal/Newspaper Newfoundland Oxford University Press ICES Journal of Marine Science 60 2 243 258 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract We used otolith microstructure analysis to reconstruct the growth histories of larval radiated shanny (Ulvaria subbifurcata) collected over a 2-week period in Trinity Bay, Newfoundland. A dynamic 3-dimensional, eddy-resolving circulation model of the region provided larval drift patterns, which were combined with measurements of temperature and zooplankton abundance to assess the environmental history of the larvae. The abundance of juvenile and adult capelin (Mallotus villosus), the dominant planktivorous fish in this area, was monitored using five hydroacoustic surveys. The goal was to determine whether environmental histories are helpful in explaining spatial and temporal differences in larval shanny growth, measured as cumulative distribution functions (CDF) of growth rates. We found evidence for a selective loss of slower growing individuals and recognized considerable spatial differences in the CDF of larval growth rates. Consistent patterns in capelin abundance suggested that faster growing survivors, sampled at the end of the 2-week period, developed in areas of low predator densities. A dome-shaped relationship between temperature and larval growth was observed, explaining a significant but small amount of the overall variability (14%). Effects of experienced prey concentrations on larval growth rates could not be demonstrated. |
format |
Article in Journal/Newspaper |
author |
Baumann, Hannes Pepin, Pierre Davidson, Fraser J.M Mowbray, Fran Schnack, Dietrich Dower, John F |
spellingShingle |
Baumann, Hannes Pepin, Pierre Davidson, Fraser J.M Mowbray, Fran Schnack, Dietrich Dower, John F Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
author_facet |
Baumann, Hannes Pepin, Pierre Davidson, Fraser J.M Mowbray, Fran Schnack, Dietrich Dower, John F |
author_sort |
Baumann, Hannes |
title |
Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
title_short |
Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
title_full |
Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
title_fullStr |
Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
title_full_unstemmed |
Reconstruction of environmental histories to investigate patterns of larval radiated shanny (Ulvaria subbifurcata) growth and selective survival in a large bay of Newfoundland |
title_sort |
reconstruction of environmental histories to investigate patterns of larval radiated shanny (ulvaria subbifurcata) growth and selective survival in a large bay of newfoundland |
publisher |
Oxford University Press (OUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1016/s1054-3139(03)00019-5 http://academic.oup.com/icesjms/article-pdf/60/2/243/29118803/60-2-243.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
ICES Journal of Marine Science volume 60, issue 2, page 243-258 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/s1054-3139(03)00019-5 |
container_title |
ICES Journal of Marine Science |
container_volume |
60 |
container_issue |
2 |
container_start_page |
243 |
op_container_end_page |
258 |
_version_ |
1812815964008349696 |