How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery?
Abstract This article reviews the adequacy of data and models currently being used to estimate the present and future population sizes of the Antarctic toothfish ( Dissostichus mawsoni Norman) in the Ross Sea regional ecosystem. The current tagging programme is unlikely to provide an accurate pictur...
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Online Access: | http://dx.doi.org/10.1017/s0954102013000801 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102013000801 |
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crcambridgeupr:10.1017/s0954102013000801 2024-03-03T08:39:18+00:00 How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? Abrams, Peter A. 2013 http://dx.doi.org/10.1017/s0954102013000801 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102013000801 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 26, issue 1, page 3-14 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2013 crcambridgeupr https://doi.org/10.1017/s0954102013000801 2024-02-08T08:28:08Z Abstract This article reviews the adequacy of data and models currently being used to estimate the present and future population sizes of the Antarctic toothfish ( Dissostichus mawsoni Norman) in the Ross Sea regional ecosystem. The current tagging programme is unlikely to provide an accurate picture of total population size, and estimates of both the pre-exploitation spawning stock biomass and the ratio of current to pre-exploitation biomass are unreliable. Many parameters necessary for estimating future population growth or decline have not been measured, and the current objective of a 50% reduction in biomass relative to unexploited biomass may easily fail to prevent a much larger reduction from taking place. The need to guess values of important parameters makes it impossible to set bounds on the potential errors of population forecasts. Current scientific knowledge is far from what is needed to predict the likely effects of food-web responses to harvesting of toothfish in the Ross Sea, or to predict the feedback effects of those food-web changes on toothfish populations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctic Toothfish Ross Sea Cambridge University Press Antarctic The Antarctic Ross Sea Antarctic Science 26 1 3 14 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Abrams, Peter A. How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract This article reviews the adequacy of data and models currently being used to estimate the present and future population sizes of the Antarctic toothfish ( Dissostichus mawsoni Norman) in the Ross Sea regional ecosystem. The current tagging programme is unlikely to provide an accurate picture of total population size, and estimates of both the pre-exploitation spawning stock biomass and the ratio of current to pre-exploitation biomass are unreliable. Many parameters necessary for estimating future population growth or decline have not been measured, and the current objective of a 50% reduction in biomass relative to unexploited biomass may easily fail to prevent a much larger reduction from taking place. The need to guess values of important parameters makes it impossible to set bounds on the potential errors of population forecasts. Current scientific knowledge is far from what is needed to predict the likely effects of food-web responses to harvesting of toothfish in the Ross Sea, or to predict the feedback effects of those food-web changes on toothfish populations. |
format |
Article in Journal/Newspaper |
author |
Abrams, Peter A. |
author_facet |
Abrams, Peter A. |
author_sort |
Abrams, Peter A. |
title |
How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
title_short |
How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
title_full |
How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
title_fullStr |
How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
title_full_unstemmed |
How precautionary is the policy governing the Ross Sea Antarctic toothfish ( Dissostichus mawsoni ) fishery? |
title_sort |
how precautionary is the policy governing the ross sea antarctic toothfish ( dissostichus mawsoni ) fishery? |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1017/s0954102013000801 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102013000801 |
geographic |
Antarctic The Antarctic Ross Sea |
geographic_facet |
Antarctic The Antarctic Ross Sea |
genre |
Antarc* Antarctic Antarctic Science Antarctic Toothfish Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctic Toothfish Ross Sea |
op_source |
Antarctic Science volume 26, issue 1, page 3-14 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102013000801 |
container_title |
Antarctic Science |
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26 |
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1 |
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3 |
op_container_end_page |
14 |
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1792494766941798400 |