Rahmi Agustina, M. Ali Sarong, Fredinan Yulianda, Suhendrayatna, Rahmadi, Lelifajri
This study aims to analyze the accumulation of Lead (Pb) and Zinc (Zn) in Faunus (F.) ater and population structure of F. ater in Bale River Lhoknga Aceh Besar Indonesia. Samples of sediment and F. ater were taken from November 2016 to April 2017, the first 3 months represent the rainy season and the second 3 months represent the dry season. The population structures analyzed include density, dispersion patterns and growth patterns. The content of heavy metals in F. ater and sediments was analyzed by using Atomic Absorption Spectrophotometer, Shimadzu AA 630 after it was devised using Toxicity Characteristic Leaching Procedure (TCLP) method. The population structure was analyzed by calculating the dispersion pattern of F. ater using the Morisita Index, while the growth pattern was analyzed through the shell length and body weight data. The population density of F. ater was calculated using the formula D = ni/a. The results showed that The Accumulation of heavy metals Pb and Zn in F. ater and sediments varies at each station and each month, respectively 0-54.190 mg-Pb/kg and 18.935-113.04 mg-Zn/kg in rainy season, while 0-32.87 mg-Pb/kg and 0-84.53 mg-Zn/kg in dry season; The accumulation of heavy metals does not affect the existence of F. ater in the Bale river, but excessive levels for a long time will certainly have a negative effect on the health of the people who consume them. The highest density of F. ater are found in the dry season in April at Station 2 which is a rocks area and is favored as a habitat of its life, amounting to 442 species. The F. ater populations on the Bale River have a grouped distribution pattern commonly; uniform pattern only found in January for rainy season, and in February and April for dry season. The growth pattern of F. ater in Bale River was negative allometric characterized which long increment faster than weight gain, this happens both in the rainy and dry seasons. © 2018, Elite Scientific Publications.
Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh, Indonesia; Departement of Biology, Faculty of Teacher Training and Education, Jabal Ghafur University, Sigli, Indonesia; Departement of Biology, Faculty of Teacher Training and Education, Universitas Syiah Kuala, Banda Aceh, Indonesia; Departement of Water Resources Management, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, Bogor, Indonesia; Department of Chemical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia; Department of Chemistry, Faculty of Mathematics and Science, Universitas Syiah Kuala, Banda Aceh, Indonesia
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