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Fishing, Trophic Cascades, and the Process of Grazing on Coral Reefs.

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Title: Fishing, Trophic Cascades, and the Process of Grazing on Coral Reefs.
Authors: Mumby, Peter J., Dahlgren, Craig P., Harborne, Alastair R., Kappel, Carrie V., Micheli, Fiorenza, Brumbaugh, Daniel R., Holmes, Katherine E., Mendes, Judith M., Broad, Kenneth, Sanchirico, James N., Buch, Kevin, Box, Steve, Stoffle, Richard W., Gill, Andrew B.
Source: Science (pre-March 2025). 1/6/2006, Vol. 311 Issue 5757, p98-101. 3p. 4 Graphs.
Subjects: Coral reefs & islands, Fishes, Mortality, Grazing, Landforms, Parrotfishes, Consumers, Fishing, Research
Abstract: Since the mass mortality of the urchin Diadema antillarum in 1983, parrotfishes have become the dominant grazer on Caribbean reefs. The grazing capacity of these fishes could be impaired if marine reserves achieve their long-term goal of restoring large consumers, several of which prey on parrotfishes. Here we compare the negative impacts of enhanced predation with the positive impacts of reduced fishing mortality on parrotfishes inside reserves. Because large-bodied parrotfishes escape the risk of predation from a large piscivore (the Nassau grouper), the predation effect reduced grazing by only 4 to 8%. This impact was overwhelmed by the increase in density of large parrotfishes, resulting in a net doubling of grazing. Increased grazing caused a fourfold reduction in the cover of macroalgae, which, because they are the principal competitors of corals, highlights the potential importance of reserves for coral reef resilience. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Fishing, Trophic Cascades, and the Process of Grazing on Coral Reefs.
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  Data: <searchLink fieldCode="AR" term="%22Mumby%2C+Peter+J%2E%22">Mumby, Peter J.</searchLink><br /><searchLink fieldCode="AR" term="%22Dahlgren%2C+Craig+P%2E%22">Dahlgren, Craig P.</searchLink><br /><searchLink fieldCode="AR" term="%22Harborne%2C+Alastair+R%2E%22">Harborne, Alastair R.</searchLink><br /><searchLink fieldCode="AR" term="%22Kappel%2C+Carrie+V%2E%22">Kappel, Carrie V.</searchLink><br /><searchLink fieldCode="AR" term="%22Micheli%2C+Fiorenza%22">Micheli, Fiorenza</searchLink><br /><searchLink fieldCode="AR" term="%22Brumbaugh%2C+Daniel+R%2E%22">Brumbaugh, Daniel R.</searchLink><br /><searchLink fieldCode="AR" term="%22Holmes%2C+Katherine+E%2E%22">Holmes, Katherine E.</searchLink><br /><searchLink fieldCode="AR" term="%22Mendes%2C+Judith+M%2E%22">Mendes, Judith M.</searchLink><br /><searchLink fieldCode="AR" term="%22Broad%2C+Kenneth%22">Broad, Kenneth</searchLink><br /><searchLink fieldCode="AR" term="%22Sanchirico%2C+James+N%2E%22">Sanchirico, James N.</searchLink><br /><searchLink fieldCode="AR" term="%22Buch%2C+Kevin%22">Buch, Kevin</searchLink><br /><searchLink fieldCode="AR" term="%22Box%2C+Steve%22">Box, Steve</searchLink><br /><searchLink fieldCode="AR" term="%22Stoffle%2C+Richard+W%2E%22">Stoffle, Richard W.</searchLink><br /><searchLink fieldCode="AR" term="%22Gill%2C+Andrew+B%2E%22">Gill, Andrew B.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 1/6/2006, Vol. 311 Issue 5757, p98-101. 3p. 4 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Coral+reefs+%26+islands%22">Coral reefs & islands</searchLink><br /><searchLink fieldCode="DE" term="%22Fishes%22">Fishes</searchLink><br /><searchLink fieldCode="DE" term="%22Mortality%22">Mortality</searchLink><br /><searchLink fieldCode="DE" term="%22Grazing%22">Grazing</searchLink><br /><searchLink fieldCode="DE" term="%22Landforms%22">Landforms</searchLink><br /><searchLink fieldCode="DE" term="%22Parrotfishes%22">Parrotfishes</searchLink><br /><searchLink fieldCode="DE" term="%22Consumers%22">Consumers</searchLink><br /><searchLink fieldCode="DE" term="%22Fishing%22">Fishing</searchLink><br /><searchLink fieldCode="DE" term="%22Research%22">Research</searchLink>
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  Label: Abstract
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  Data: Since the mass mortality of the urchin Diadema antillarum in 1983, parrotfishes have become the dominant grazer on Caribbean reefs. The grazing capacity of these fishes could be impaired if marine reserves achieve their long-term goal of restoring large consumers, several of which prey on parrotfishes. Here we compare the negative impacts of enhanced predation with the positive impacts of reduced fishing mortality on parrotfishes inside reserves. Because large-bodied parrotfishes escape the risk of predation from a large piscivore (the Nassau grouper), the predation effect reduced grazing by only 4 to 8%. This impact was overwhelmed by the increase in density of large parrotfishes, resulting in a net doubling of grazing. Increased grazing caused a fourfold reduction in the cover of macroalgae, which, because they are the principal competitors of corals, highlights the potential importance of reserves for coral reef resilience. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=19476249
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        Value: 10.1126/science.1121129
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 3
        StartPage: 98
    Subjects:
      – SubjectFull: Coral reefs & islands
        Type: general
      – SubjectFull: Fishes
        Type: general
      – SubjectFull: Mortality
        Type: general
      – SubjectFull: Grazing
        Type: general
      – SubjectFull: Landforms
        Type: general
      – SubjectFull: Parrotfishes
        Type: general
      – SubjectFull: Consumers
        Type: general
      – SubjectFull: Fishing
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      – SubjectFull: Research
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    Titles:
      – TitleFull: Fishing, Trophic Cascades, and the Process of Grazing on Coral Reefs.
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              Text: 1/6/2006
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              Y: 2006
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