کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8883996 | 1626047 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identifying key habitat and spatial patterns of fish biodiversity in the tropical Brazilian continental shelf
ترجمه فارسی عنوان
شناسایی زیستگاه کلیدی و الگوهای فضایی تنوع زیستی ماهی در قفسه قاره استوایی
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کلمات کلیدی
مونتاژ ماهی ماهی دودی، ساحل برزیل شمال شرقی، فیلم های زیر آب ساختار مونتاژ ماهی، مناطق حفاظت شده دریایی، ترکیب محل زندگی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Knowledge of the spatial distribution of fish assemblages biodiversity and structure is essential for prioritizing areas of conservation. Here we describe the biodiversity and community structure of demersal fish assemblages and their habitat along the northeast Brazilian coast by combining bottom trawl data and underwater footage. Species composition was estimated by number and weight, while patterns of dominance were obtained based on frequency of occurrence and relative abundance. A total of 7235 individuals (830â¯kg), distributed in 24 orders, 49 families and 120 species were collected. Community structure was investigated through clustering analysis and by a non-metric multidimensional scaling technique. Finally, diversity was assessed based on six indices. Four major assemblages were identified, mainly associated with habitat type and depth range. The higher values of richness were found in sand substrate with rocks, coralline formations and sponges (SWCR) habitats, while higher values of diversity were found in habitats located on shallow waters (10-30â¯m). Further, assemblages associated with sponge-reef formations presented the highest values of richness and diversity. In management strategies of conservation, we thus recommend giving special attention on SWCR habitats, mainly those located on depths between 30 and 60â¯m. This can be achieved by an offshore expansion of existing MPAs and/or by the creation of new MPAs encompassing those environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 166, 15 August 2018, Pages 108-118
Journal: Continental Shelf Research - Volume 166, 15 August 2018, Pages 108-118
نویسندگان
Leandro Nolé Eduardo, Thierry Frédou, Alex Souza Lira, Beatrice Padovani Ferreira, Arnaud Bertrand, Frédéric Ménard, Flávia Lucena Frédou,