Aquatic Productivity Analysis based on The Relationship between Physical and Chemical of Benthic Sediment with NO3 and PO4 in the Estuarine of Tuntang River

*Djoko Suprapto -  Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang, Indonesia
Pujiono W. Purnomo -  Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang, Indonesia
Bambang Sulardiono -  Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang, Indonesia
Published: 29 Aug 2014.
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Language: EN
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Abstract

There are several types of water mixing in the estuary, as anexample is tuntang river which could be a model in the coast of north
java island.The aims of this research are known, the spatial distribution of physical structure, organic matter, including he content of
Nitrogene and phosphor in the sediment. Further more the role of physical and chemical sediment are also evaluated. The research
was conducted in of May 2014, in an area which devided into 11 stations : one of them is located before the esturary while in the
west, north west, east and north east the station are distributed proportionally. The variables measured are total organic matters,
total nitrogen, total phosphate, NO3-N, PO4-P , Dissolved oxygen, current, depth and visibility. The result of the research shown that
spatial distribution of the sediment strongly suggest the form of clay in front of estuary, south westward as well as north westwards.
Clay distribution is well influenced by organic matter and nitrogene while phosphate content tend to be randomly distributed. In the
case of the the current is weak while the oxygen content is high enough so that the relationship between nitrogen and sediment of clay
contribute to the water environment condition as eutrophic status.

Keywords : Aquatic Productivity, Sediment, NO3, PO4, Tuntang River

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