www.elsevier.com/locate/pocean Climate change and the control of energy flow in the
We examine how coupling between physical and biological processes influences the production and transfer of energy to upper trophic-level species in the southeastern Bering Sea. We review time series that illustrate changes in the marine climate of the southeastern Bering Sea since the mid-1970s, pa...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.594.619 2023-05-15T15:43:27+02:00 www.elsevier.com/locate/pocean Climate change and the control of energy flow in the Southeastern Bering Sea George L. Hunt Jr. A Phyllis J. Stabeno B The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.619 http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.619 http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf text ftciteseerx 2016-01-08T13:40:48Z We examine how coupling between physical and biological processes influences the production and transfer of energy to upper trophic-level species in the southeastern Bering Sea. We review time series that illustrate changes in the marine climate of the southeastern Bering Sea since the mid-1970s, particularly variability in the persistence of sea ice and the timing of its retreat. Time series (1995 – 2001) from a biophysical mooring in the middle domain of the southeastern shelf support the hypothesis that retreat of the winter sea ice before mid-March (or the failure of ice to be advected into a region) results in an open water bloom in May or June in relatively warm water (3°C). Conversely, when ice retreat is delayed until mid-March or later, an ice-associated bloom occurs in cold (0°C) water in early spring. These variations are important because the growth and production of zooplankton and the growth and survival of larval and juvenile fish are sensitive to water temperature. The Oscillating Control Hypothesis (OCH) recently proposed by Hunt et al. (2002), predicts that control of the abundance of forage fish, and in the case of walleye pollock (Theragra chalcogramma), recruitment of large piscivorous fish, will switch from bottom-up limitation in extended periods with late ice retreat to top-down in warmer periods when ice retreat occurs before mid-March. In support of this hypothesis, we review recent data from the southeastern Bering Sea that show 2- to 13-fold changes in copepod abundance with changes in spring water temperatures of 3 to 5°C. We also provide indirect evidence that the abundance Text Bering Sea Sea ice Theragra chalcogramma Unknown Bering Sea |
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English |
description |
We examine how coupling between physical and biological processes influences the production and transfer of energy to upper trophic-level species in the southeastern Bering Sea. We review time series that illustrate changes in the marine climate of the southeastern Bering Sea since the mid-1970s, particularly variability in the persistence of sea ice and the timing of its retreat. Time series (1995 – 2001) from a biophysical mooring in the middle domain of the southeastern shelf support the hypothesis that retreat of the winter sea ice before mid-March (or the failure of ice to be advected into a region) results in an open water bloom in May or June in relatively warm water (3°C). Conversely, when ice retreat is delayed until mid-March or later, an ice-associated bloom occurs in cold (0°C) water in early spring. These variations are important because the growth and production of zooplankton and the growth and survival of larval and juvenile fish are sensitive to water temperature. The Oscillating Control Hypothesis (OCH) recently proposed by Hunt et al. (2002), predicts that control of the abundance of forage fish, and in the case of walleye pollock (Theragra chalcogramma), recruitment of large piscivorous fish, will switch from bottom-up limitation in extended periods with late ice retreat to top-down in warmer periods when ice retreat occurs before mid-March. In support of this hypothesis, we review recent data from the southeastern Bering Sea that show 2- to 13-fold changes in copepod abundance with changes in spring water temperatures of 3 to 5°C. We also provide indirect evidence that the abundance |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Southeastern Bering Sea George L. Hunt Jr. A Phyllis J. Stabeno B |
spellingShingle |
Southeastern Bering Sea George L. Hunt Jr. A Phyllis J. Stabeno B www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
author_facet |
Southeastern Bering Sea George L. Hunt Jr. A Phyllis J. Stabeno B |
author_sort |
Southeastern Bering Sea |
title |
www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
title_short |
www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
title_full |
www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
title_fullStr |
www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
title_full_unstemmed |
www.elsevier.com/locate/pocean Climate change and the control of energy flow in the |
title_sort |
www.elsevier.com/locate/pocean climate change and the control of energy flow in the |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.619 http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Sea ice Theragra chalcogramma |
genre_facet |
Bering Sea Sea ice Theragra chalcogramma |
op_source |
http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.619 http://www.pmel.noaa.gov/foci/publications/2002/huntS523.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766377608091533312 |