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Chrisna Adi Suryono
Jurusan Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro Jl. Prof. Dr. Soedarto, Tembalang, Semarang, Indonesia. 50275
Earth & Planetary Sciences

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STUDI KANDUNGAN BAHAN ORGANIK SEDIMEN TERHADAP KELIMPAHAN BIVALVIA DI PERAIRAN SEMARANG BAGIAN TIMUR Nurfakih, Asnandi; Suryono, Chrisna Adi; Sunaryo, Sunaryo
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (115.938 KB) | DOI: 10.14710/jmr.v2i3.3146

Abstract

The condition of waters east of Semarang allegedly tainted by the many human activities such as settlements, ports, industries, fishing and bivalves are large, it will create different ecological conditions for the biota that are inside. Study of the bivalves is considered important because of its high tolerance and live it life in order to describe the environmental changes that occur in this waters. This research was conducted on October 7, 12 November and 11 December in the waters of eastern Semarang. The material on this research was substrate or sediment, and bivalves were taken using a modification dredge. The result showed that 8 species were found, there were, Anadara granosa, Anadara gubernaculum, Anadara innaequivalvis, Anadara pilula, Marcia hiantia, Placuna placenta, Paphia undulate, and Pharella javanic. The species with the highest abundance was Anadara granosa ( 301.1 Ind / ha (Station III)). Organic matter content was highest at station II, period 2, amounting to 22.56%, and lowest was at station V, period 3, amounting to 9.48%. The correlation between organic matter content of sediment with an abundance of bivalves in the waters of eastern Semarang overall was not significant.
Sebaran Kerang Anadara granosa Berdasarkan Kelas Ukuran Terhadap Logam Berat Cr (Chromium) Di Perairan Pantai Semarang Bagian Timur Feriano, Hafidz; Suryono, Chrisna Adi; Yulianto, Bambang
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.9 KB) | DOI: 10.14710/jmr.v2i3.3136

Abstract

Anadara granosais one of bivalve species, which lives in the bottom of marine waters it has a long life cycle. This species is commonly used as bioindicator in the assessment of water quality. The variety of human activities, such as settlements, ports, industries, and fishing coastal areas cause a decrease in water quality which directly affect the presence and abudance of mussels in the waters.The aimed was research to determine the relationship between the heavy metal concentration of Cr (Chromium) and size class distribution of the blood mussels (A. granosa) at Eastern Semarang Coastal Waters.The research was conducted from March to April 2012 at 8 stations in Eastern Semarang coastal waters, Semarang Central Java. The method of the research was case study with descriptive data analysis. Sampling locations were determined by purposive sampling methode.The results showed that the lowest heavy metal concentrations of Cr (Chromium) were found at Station III and IV, in front of estuaries of Benger River. They were are 13,92 mg/l for Station III and 19,60 mg/l for Station IV. The highest number of A.granosa were also found at Station III and Station IV, which was 56 and 130. The distribution pattern of A. granosa at the research locations showed a clumped pattern, and the A.granosa most dominant size found in medium class (2-3Cm).
Co-Authors Asnandi Nurfakih Bambang Yulianto Hafidz Feriano Sunaryo Sunaryo