التفاصيل البيبلوغرافية
| العنوان: |
Real-time monitoring of harmful algal blooms in the southern Benguela |
| المؤلفون: |
Fawcett, A, Bernard, S, Pitcher, GC, Probyn, TA, du Randt, A |
| المصدر: |
African Journal of Marine Science; Vol 28, No 5 (2006) ; 1814-232X |
| بيانات النشر: |
NISC |
| سنة النشر: |
2011 |
| المجموعة: |
AJOL - African Journals Online |
| مصطلحات موضوعية: |
Benguela, bio-optical, buoy, harmful algal bloom, monitoring, mooring |
| الوصف: |
The southern Benguela Current region off South Africa is subject to frequent harmful algal blooms (HABs), which can have serious impacts — both through the introduction of toxins into the ecosystem and the collapse of high-biomass blooms leading to anoxia. As part of the Benguela Current Large Marine Ecosystem Programme, a bio-optical buoy has been developed for monitoring HABs in the region, providing both real-time and time-series data. Considerations in developing the buoy were that it should be small, cost effective and robust, allowing for field calibration of the sensors and servicing from a small boat. The instrument package on the buoy consists of two hyperspectral radiometers (providing remote sensing reflectance), a thermistor chain, a fluorometer and an Acoustic Doppler Current Profiler. A half-hourly acquisition regime collects data from the instruments, which are transmitted in real time using cellular phone telemetry. A website is updated with these data, when available, along with satellite data and shellfish warnings, to provide near real-time information on conditions in the area. Demonstration data from the buoy, related to observed blooms of dinoflagellates and the ciliate Mesodinium rubrum, are presented. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
http://www.ajol.info/index.php/ajms/article/view/66223/53945Test; http://www.ajol.info/index.php/ajms/article/view/66223Test |
| الإتاحة: |
http://www.ajol.info/index.php/ajms/article/view/66223Test |
| حقوق: |
Copyright for articles published in this journal is retained by the publisher. |
| رقم الانضمام: |
edsbas.8FC79837 |
| قاعدة البيانات: |
BASE |
