Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8
We examined quantitative catches of large medusae from summer bottom trawl surveys that sampled vir-tually the same grid station on the eastern Bering Sea shelf using the same methodology every year from 1979 to 1997. This series shows a gradual increase in biomass of medusae from 1979 to 1989, foll...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.540.1650 2023-05-15T15:42:50+02:00 Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 Richard D. Brodeur Claudia E James E. Overland Gary E The Pennsylvania State University CiteSeerX Archives 1999 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.540.1650 http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.540.1650 http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf Key words Bering Sea ecosystem change physical± text 1999 ftciteseerx 2016-01-08T11:01:51Z We examined quantitative catches of large medusae from summer bottom trawl surveys that sampled vir-tually the same grid station on the eastern Bering Sea shelf using the same methodology every year from 1979 to 1997. This series shows a gradual increase in biomass of medusae from 1979 to 1989, followed by a dramatic increase in the 1990s. The median biomass increased tenfold between the 1982±1989 and 1990± 1997 periods. Most of this biomass was found within the Middle Shelf Domain (50 < z < 100 m). The greatest rate of increase occurred in the north-west portion of this domain. Whether this dramatic increase in biomass of gelatinous zooplankton has resulted from some anthropogenic perturbation of the Bering Sea environment or is a manifestation of nat-ural ecosystem variability is unclear. However, several large-scale winter/spring atmospheric and oceano-graphic variables in the Bering Sea exhibited con-comitant changes beginning around 1990, indicating that a possible regime change occurred at this time. Text Bering Sea Unknown Bering Sea |
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Key words Bering Sea ecosystem change physical± |
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Key words Bering Sea ecosystem change physical± Richard D. Brodeur Claudia E James E. Overland Gary E Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
topic_facet |
Key words Bering Sea ecosystem change physical± |
description |
We examined quantitative catches of large medusae from summer bottom trawl surveys that sampled vir-tually the same grid station on the eastern Bering Sea shelf using the same methodology every year from 1979 to 1997. This series shows a gradual increase in biomass of medusae from 1979 to 1989, followed by a dramatic increase in the 1990s. The median biomass increased tenfold between the 1982±1989 and 1990± 1997 periods. Most of this biomass was found within the Middle Shelf Domain (50 < z < 100 m). The greatest rate of increase occurred in the north-west portion of this domain. Whether this dramatic increase in biomass of gelatinous zooplankton has resulted from some anthropogenic perturbation of the Bering Sea environment or is a manifestation of nat-ural ecosystem variability is unclear. However, several large-scale winter/spring atmospheric and oceano-graphic variables in the Bering Sea exhibited con-comitant changes beginning around 1990, indicating that a possible regime change occurred at this time. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Richard D. Brodeur Claudia E James E. Overland Gary E |
author_facet |
Richard D. Brodeur Claudia E James E. Overland Gary E |
author_sort |
Richard D. Brodeur |
title |
Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
title_short |
Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
title_full |
Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
title_fullStr |
Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
title_full_unstemmed |
Substantial increase in gelatinous zooplankton in the Bering Sea, with possible links to climate change. Fisheries Oceanography 8 |
title_sort |
substantial increase in gelatinous zooplankton in the bering sea, with possible links to climate change. fisheries oceanography 8 |
publishDate |
1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.540.1650 http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf |
geographic |
Bering Sea |
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Bering Sea |
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Bering Sea |
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Bering Sea |
op_source |
http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.540.1650 http://www.pmel.noaa.gov/np/pages/inter-agency/brodeur_jellyfish.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766376798585618432 |