کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4545318 1626933 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative diel oxygen cycles preceding and during a Karenia bloom in Sarasota Bay, Florida, USA
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Comparative diel oxygen cycles preceding and during a Karenia bloom in Sarasota Bay, Florida, USA
چکیده انگلیسی

The diel change in dissolved oxygen concentrations were recorded with an automated incubator containing a pulsed oxygen sensor in Sarasota Bay, Florida. The deployments occurred during a ‘pre-bloom’ period in May to June 2006, and during a harmful algal bloom dominated by Karenia brevis in September 2006. The diurnal (daylight) increase in dissolved oxygen concentrations varied from 16 to 104 μmol O2 l−1 with the corresponding nocturnal decrease in oxygen varying from 16 to 77 μmol O2 l−1. Nocturnal respiration consumed 42–113% of the diurnal net oxygen production with the minimum and maximum during the pre-bloom period. Hourly production rates closely followed fluctuations in irradiance with maximum rates in the late morning. Hourly oxygen utilization rates (community respiration) at night were highest during the first few hours after sunset.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Harmful Algae - Volume 38, September 2014, Pages 95–100
نویسندگان
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