کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6359269 1622748 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tolerance of Brazilian brain coral Mussismilia braziliensis to sediment and organic matter inputs
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Tolerance of Brazilian brain coral Mussismilia braziliensis to sediment and organic matter inputs
چکیده انگلیسی
In Brazil, where reefs occur in markedly turbid environments, the relationship between sedimentation/organic matter and corals is poorly known. Thus, the ex situ effects of sediment with and without organic matter over the ΔF/Fm and physical state of Mussismilia braziliensis were analyzed. The ΔF/Fm and coral physical state, evaluated through the susceptibility index to sedimentation (SI), were measured in seven colonies exposed to sedimentation (0-450 mg cm−2 day−1) free of organic matter after 45 days of exposure, and in 12 colonies exposed to sedimentation (0-500 mg cm−2 day−1) with organic matter content (10%), in which case ΔF/Fm was measured after 72 h and SI after 120 h. In both cases there were effects of increasing sedimentation on the SI with no effect on ΔF/Fm. Despite the tolerance to high sedimentation rates shown by this coral, we noted that the presence of organic matter might reduce its tolerance to sedimentation stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 77, Issues 1–2, 15 December 2013, Pages 55-62
نویسندگان
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