کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5764505 | 1626081 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Does human pressure affect the community structure of surf zone fish in sandy beaches?
ترجمه فارسی عنوان
آیا فشار انسانی بر ساختار جامعه ماهی گشت و گذار در سواحل شنی تاثیر می گذارد؟
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کلمات کلیدی
ماهی، منطقه گشت و گذار، ساختار جامعه، فشار انسانی، پیشگویی، ساحل شنی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Intense tourism and human activities have resulted in habitat destruction in sandy beach ecosystems with negative impacts on the associated communities. To investigate whether urbanized beaches affect surf zone fish communities, fish and their benthic macrofaunal prey were collected during periods of low and high human pressure at two beaches on the Southeastern Brazilian coast. A BACI experimental design (Before-After-Control-Impact) was adapted for comparisons of tourism impact on fish community composition and structure in urbanized, intermediate and non-urbanized sectors of each beach. At the end of the summer season, we observed a significant reduction in fish richness, abundance, and diversity in the high tourist pressure areas. The negative association between visitors' abundance and the macrofaunal density suggests that urbanized beaches are avoided by surf zone fish due to higher human pressure and the reduction of food availability. Our results indicate that surf zone fish should be included in environmental impact studies in sandy beaches, including commercial species, e.g., the bluefish Pomatomus saltatrix. The comparative results from the less urbanized areas suggest that environmental zoning and visitation limits should be used as effective management and preservation strategies on beaches with high conservation potential.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 132, 1 January 2017, Pages 1-10
Journal: Continental Shelf Research - Volume 132, 1 January 2017, Pages 1-10
نویسندگان
Leonardo Lopes Costa, Júlia G. Landmann, Luiz R. Gaelzer, Ilana R. Zalmon,