کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4531681 1626110 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Water quality assessment in the Mexican Caribbean: Impacts on the coastal ecosystem
ترجمه فارسی عنوان
ارزیابی کیفیت آب در کارائیب مکزیک: تاثیر بر اکوسیستم ساحلی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی


• Groundwater and recirculated seawater contribution were quantified by Ra isotopes.
• Groundwater springs are significant nutrient sources in Akumal coastal area.
• The adjacent coral reef is impacted by anthropogenic sources of nutrients.

Coastal zones are dominated by economically important ecosystems, and excessive urban, industrial, agricultural, and tourism activities can lead to rapid degradation of those habitats and resources. Groundwater in the Eastern Yucatan Peninsula coastal aquifer discharges directly into the coastal ocean affecting the coral reefs, which are part of the Mesoamerican Coral Reef System. The composition and impacts of groundwater were studied at different coastal environments around Akumal (SE Yucatan Peninsula). Radium isotopes and salinity were used to quantify fresh groundwater and recirculated seawater contributions to the coastal zone. Excess Ra distribution suggests spatially variable discharge rates of submarine groundwater. High NO3− levels and high coliform bacteria densities indicate that groundwater is polluted at some sites. Dissolved phosphorous content is elevated in the winter and during the high tourism season, likely released from untreated sewage discharge and from aquifer sediments under reducing conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 102, 1 July 2015, Pages 62–72
نویسندگان
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