PRIMARY AQUATIC PRODUCTIVITY OF FISHPOND IN PALM OIL PLANTATION IN GUNUNG MELATI VILLAGE BATU AMPAR SUBDISTRICT TANAH LAUT REGENCY

Abstract

This research attempted to find out the level of primary aquatic productivity of fishpond in palm oil plantation in Gunung Melati Village Batu Ampar Subdistrict Tanah Laut Regency and to find out the quality of water based on the abundance of plankton. The measurement of the primary productivity used combination of two oxygen methods, withdrawal of sample of water, and plankton analysis. The result of the measurement was tabulated in form of table and described in form of graphic so that the difference in every observational station would be seen. Data analysis of primary productivity used oxygen measuring methods; those were dark bottle and clear bottle methods. The classification used for fertility level was according to Purnomo, et al, 1993.

Result of the measurement showed that station 1 and station 2 had fertility level that belonged to trophic oligotrophic level (less fertile). Index value of plankton diversity t in station 1 and station 2 were ranked not extremely low and belonged to minor contaminated category.