کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4544057 1327177 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatial structure and temporal patterns in a large marine ecosystem: Exploited reef fishes of the southeast United States
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Spatial structure and temporal patterns in a large marine ecosystem: Exploited reef fishes of the southeast United States
چکیده انگلیسی

The continental shelf of the southeast United States forms one of North America's Large Marine Ecosystems (LME). Despite increased attention on ecosystem management, fisheries within this LME continue to be managed on a single stock basis, in part because interactions among species and environmental effects are poorly understood. Using fishery data from two different sources (recreational and commercial), we applied multivariate statistical techniques to elucidate spatial and temporal dynamics of reef fish assemblages. Spatial analyses of species composition revealed a zoogeographic boundary near Cape Canaveral, Florida, suggesting that management of reef fishes could be applied to the northern and southern regions with discrimination. Temporal analyses revealed, in general, gradual changes in species composition of landings, but with primary shifts in 1992 and again in 1999–2000. Chronological patterns, evident in these two independent data sets, bear the signature of one or more trending factors, which in this LME could include increased exploitation, spread of invasive species, habitat degradation, or climate change.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fisheries Research - Volume 100, Issue 2, October 2009, Pages 126–133
نویسندگان
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