کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6358608 | 1315631 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Light requirements of seagrasses determined from historical records of light attenuation along the Gulf coast of peninsular Florida
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Light requirements of seagrasses determined from historical records of light attenuation along the Gulf coast of peninsular Florida Light requirements of seagrasses determined from historical records of light attenuation along the Gulf coast of peninsular Florida](/preview/png/6358608.png)
چکیده انگلیسی
Seagrasses around the world are threatened by human activities that degrade water quality and reduce light availability. In this study, light requirements were determined for four common and abundant seagrasses along the Gulf coast of peninsular Florida using a threshold detecting algorithm. Light requirements ranged from 8% to 10% of surface irradiance for Halophila engelmannii to 25-27% of surface irradiance for Halodule wrightii. Requirements for all species differed from previous reports generated at other locations. Variations were attributed to morphological and physiological differences, as well as adaptation to light histories at specific locations. In addition, seagrasses were absent from stations with significantly higher concentrations of total nitrogen, total phosphorus, chlorophyll a and color. These results confirm the need to address links between increased anthropogenic nutrient loads, eutrophication, reduced light penetration, and loss of seagrasses and the services they provide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 81, Issue 1, 15 April 2014, Pages 94-102
Journal: Marine Pollution Bulletin - Volume 81, Issue 1, 15 April 2014, Pages 94-102
نویسندگان
Zanethia D. Choice, Thomas K. Frazer, Charles A. Jacoby,