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PE GARUH UPWELLI G TERHADAP LEDAKA ALGA (BLOOMI G ALGAE) DI LI GKU GA PERAIRA LAUT

Murdahayu Makmur

! !

ABSTRAK

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ABSTRACTS

I FLUE CE UPWELLI G PROCESSES TO BLOOMI G ALGAE I MARI E ECOSYSTEM. It has been done the study about influence of upwelling processes to blooming algae. Upwelling definite that rise up the deeply water to surface cause by physical oceanic parameter. Upwelling processes was be marked by accumulation nutrient content in these area. It was caused the deeply water contain more nutrient compared with surface water. utrients, especially phosphate, nitrate and silicate will influences the high numbers of phytoplankton. The blooms of phytoplankton population would become precursor to fish mortalities, seafood contamination, threat to human health and changes ecosystem community. The data from Oceanographical Cruise Report (OCR) that have been done the observation in the west Sumatera Island, included the nutrient content in the several station sampling points. Sampling were carried out in 30 point sampling and 8 point analyzed and reported indicated rise up the nutrient content with more deep sea level. utrient content in the deeply seawater will move to surface level and would be trigger the blooming algae. However, the controlled upwelling could be gave the benefit to fish farming.

Keywords : Blooming algae, HABs, upwelling, nutrient.

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