LUTHFIANA APRILIANITA SARI, '- and Kustiawan Tri Pursetyo, - and SULASTRI ARSAD, '- and Endang Dewi Masithah and EKO SETIAWAN, '- and Mochammad Affandi, '- (2019) THE EFFECT OF NUTRIENT ABUNDANCE ON DISTRIBUTION OF CYANOBACTERIA AND CHLOROPHYll-A IN SEDATI WATER, SIOOARJO. Ecology, Environment and Conservation, 38. pp. 538-543. ISSN ISSN -0971-765X

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Abstract

Cyanobacteria are algae that are dominated by Harmful Algal Blooms group (HABs). The phenomenon of farmed fish mortality due to HABs has occurred in several Asian countries, such as Korea, Japan, and the Philippines in 2004. HABs phenomenon occurs due to the emergence of excessive nutrient pollution in the waters. One of the waters around Surabaya is Sedati waters where the waters of the estuary of the 10 rivers that are in the waters around them. The results showed an average BOD value results in March (22.86 mg. L-1.) and April (23.86 mg. L-1.). Density of plankton March was 84.533 cells mL-1.and in April 10,086,667 cells. mL-1.A chlorophyll concentration level in March (0.05 mg. L-1.) and April (0.07). These results are expected because organic and inorganic materials that exist in waters Sedati is a nutrient for plankton growth.

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