| dc.description.abstract | There many activities around marine Belawan alters the marine water
quality of Belawan. The information and understanding of environmental change
are indispensable in ecosystem monitoring efforts. This research aims for
knowing the value of primary productivity, chlorophyl-a, and the relationships
between physical and chemical factors was done on Desember 2013 – February
2014 in Marine of Belawan, North Sumatera. The sampling was determined based
on four location which is in various activities. There are 4 sampling in 3 months.
The analysis of other factor, such as water temperature, pH, brightness, salinity,
DO, nitrate, phosphate, and chlorophyll.
The research result of chlorophyll-a showed there was a relation of
physical chemical factors in marine of Belawan, North Sumatera. The range of the
chlorophyll-a is 1,93 – 5,96 mg/ m3. The highest concentration of chlorophyll-a
was located in floating net cages in the range of 4,06 – 5,96 mg/m3. The lowest
concentration of chlorophyll-a was located in offshore in the range of 1,93 – 2,53
mg/m3. The average value chlorophyll and primary poductivity top are on the
location 4 and the lowest in the location. | en_US |
