کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6358973 | 1622751 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Can stormwater be detected by algae in an urban reef in Hawai'i?
ترجمه فارسی عنوان
آیا می توان آب جاری در جاده ها در یک صخره شهری در هاوایی تشخیص داد؟
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
Nitrogen (N) enrichment of tropical reefs can result in the dominance of invasive algae. The invasive alga Acanthophora spicifera and the native alga Laurencia nidifica are part of a diverse reef assemblage in 'Ewa Beach, O'ahu. Their N contents and δ15N values were investigated to determine if N was enriched and to evaluate potential nitrogenous sources near and removed from storm-drain outlets. δ15N values of algae (3.8-17.7â°) were within and above the range for algae around the island (1.9-11.9â°). Elevated algae N isotope values (δ15N > +7â°, [N] > 1.6%) and seawater nitrate + nitrite levels (0.59-7.93 μM) indicated a mixed, high nutrient environment. The overlap in δ15N values with multiple nitrogenous sources precluded identification. However, spatial and temporal patterns did not support stormwater as the dominant, nitrogenous source. Patterns were congruent with algal incorporation of terrestrial derived N, subjected to a high degree of biogeochemical cycling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 71, Issues 1â2, 15 June 2013, Pages 92-100
Journal: Marine Pollution Bulletin - Volume 71, Issues 1â2, 15 June 2013, Pages 92-100
نویسندگان
T. Erin Cox, Celia M. Smith, Brian N. Popp, Michael S. Foster, Isabella A. Abbott,