Fishery-independent data reveal negative effect of human population density on Caribbean predatory fish communities.
Fishery-independent data reveal negative effect of human population density on Caribbean predatory fish communities.
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DOI:
10.1371/journal.pone.0005333
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发表时间:
2009
期刊:
影响因子:
3.7
通讯作者:
Stallings CD
中科院分区:
文献类型:
--
作者:
Stallings CD
Understanding the current status of predatory fish communities, and the effects fishing has on them, is vitally important information for management. However, data are often insufficient at region-wide scales to assess the effects of extraction in coral reef ecosystems of developing nations. Here, I overcome this difficulty by using a publicly accessible, fisheries-independent database to provide a broad scale, comprehensive analysis of human impacts on predatory reef fish communities across the greater Caribbean region. Specifically, this study analyzed presence and diversity of predatory reef fishes over a gradient of human population density. Across the region, as human population density increases, presence of large-bodied fishes declines, and fish communities become dominated by a few smaller-bodied species. Complete disappearance of several large-bodied fishes indicates ecological and local extinctions have occurred in some densely populated areas. These findings fill a fundamentally important gap in our knowledge of the ecosystem effects of artisanal fisheries in developing nations, and provide support for multiple approaches to data collection where they are commonly unavailable.
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影响因子:
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作者:
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通讯作者:
Tanner, J
影响因子:
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作者:
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通讯作者:
Hughes, Terence P.
影响因子:
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作者:
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Carr, MH
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作者:
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Sala, Enric
DOI:
10.1016/j.dsr2.2003.07.018
发表时间:
2004-01-01
影响因子:
3
作者:
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通讯作者:
Bécu, G