Relationship between distribution of dimethyl sulfide (DMS) and plankton community structure in Spermonde, Indonesia

Abstract

Abstract Dimethylsulfide (DMS), particulate dimethylsulfoniopropionate (DMSP) and phytoplankton abundance are measured on the surface of the sea and sub-surface in the spermonde area, the Makassar Strait in January 2018. At the mouth of the Tallo River, domestic runoff affects the dominance (D) of phytoplankton from the Makassar city river flow, and the reduction of nutrients from the sea cannot be predicted. Pangkep river estuary abundance of phytoplankton is more dominant than the genus Chaetoceros sp . The location is relatively strong research at the highest flow velocity at the estuary Pangkep is 10.45 cm/sec, and the lowest is located at the estuary Tallo is 5.87 cm/sec. The most abundant phytoplankton abundance in the west are found in sea level comes from Coscinodiscus sp class with the same abundance percentage composition of 71% and zooplankton groups are most often found originated from Temora sp class with composition percentage of 6.2%. The highest abundance of phytoplankton in the substrate Leptocylindricus sp is 73%, while the highest zooplankton abundance was 4.9%. The average value of the diversity index is 1.11; 0.082 and 0.521 while the value of diversity index, uniformity and dominance at sea subsurface 1.14; 0.088 and 0.55.

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