E W Setyaningrum, - and Endang Dewi Masithah and M Yuniartik, - and M P Nugrahani, - (2020) Comparison of water quality and its influences on phytoplankton abundance based on water characteristics in coastal of Banyuwangi Regency, Jawa Timur, Indonesia. 2nd International Conference on Fisheries and Marine Science, 441. ISSN doi:10.1088/1755-1315/441/1/012129

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Abstract

Abstract. Coastal waters of Banyuwangi Regency, East Java, Indonesia obtains water resources from residential areas, the fishing industry, the shipping industry in the surrounding area. This study aims to determine the influences of water quality on phytoplankton abundance, seen from differences characteristics of coastal waters of Banyuwangi. The research method is descriptive. Data collection technique is observation, with the required data including water quality parameters (Sn, PO4, Total Organic Matter, NO3, Cu Copper, DO, Water Temperature, Pb, Salinity, Alkalinity, pH, and NH4) and phytoplankton. The analysis used plankton abundance analysis calculated using the Lachlan modification formula (1982), and multiple regression analysis. The analysis result showed that the type of phytoplankton found was green algae Chlorella type and blue-green algae Oscillatoria type. The abundance of phytoplankton in the coastal area of Banyuwangi is around 12.5 - 513.75 ind/L, where it is included in the level of eutrophic phytoplankton abundance, which waters in a high fertility. There is an influence between water quality on the abundance of phytoplankton on the coast of Wongsorejo, Banyuwangi and Blimbingsari Districts. Whereas in Lampon (Pesanggaran subdistrict), water quality does not affect the abundance of phytoplankton.

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