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Journal : Journal of Fisheries

Analisis Kandungan Logam Berat Tembaga (Cu) pada Kepiting Bakau (Scylla sp.) di Sungai Wonorejo, Surabaya [Analysis of Heavy Metal Copper (Cu) Content on Mud Crab (Scylla sp.) at Wonorejo River, Surabaya] Boedi Setya Rahardja; Adriana Monica Sahidu; Fani Fariedah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 10 No. 2 (2018): Jurnal ilmiah perikanan dan kelautan
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v10i2.10499

Abstract

AbstrakPerairan Wonorejo merupakan salah satu daerah penghasil kepiting bakau di Surabaya. Namun perairan ini berpotensi mengalami pencemaran logam berat akibat aktivitas yang ada di daratan. Tembaga (Cu) merupakan salah satu jenis logam berat yang mencemari perairan Wonorejo dan jika dalam jumlah besar menyebabkan kerusakan hati organisme. Penelitian ini bertujuan untuk mengetahui konsentrasi logam berat tembaga pada kepiting bakau dan mengetahui keamanan pangan hasil tangkapan kepiting bakau di Sungai Wonorejo. Penelitian ini dilaksanakan pada bulan April 2018 dengan pengambilan sampel di tiga stasiun dengan waktu setiap minggu selama tiga kali. Analisis logam berat tembaga (Cu) pada kepiting bakau (Scylla sp.), air dan sedimen dilakukan di Laboratorium Gizi Fakultas Kesehatan Masyarakat Universitas Airlangga. Metode penelitian menggunakan metode observasi yang dilakukan di perairan dan tambak di Wonorejo Surabaya. Sampel daging kepiting bakau, air dan sedimen diuji menggunakan alat Atomic Absoption Spectrophotometry (AAS). Hasil kandungan kadar logam berat tembaga (Cu) pada kepiting bakau di Sungai Wonorejo pada stasiun 1 dan 2 yaitu 0,008 mg/kg dan pada stasiun 3 yaitu 0,002 mg/kg dimana nilai kadar ini masih berada di bawah ambang batas baku mutu logam berat Cu pada kepiting yaitu 20 mg/kg.AbstractWonorejo river as one area in Surabaya that has produce mud crab and potentially has heavy metal pollution caused by human activities. Copper (Cu) is on the heavy metals that pollute in the waters Wonorejo. Copper in large quantities can damage the liver. This research was conducted in April 2018 samples taken at three stations. Analysis of heavy metals copper (Cu) in samples of water, sediment, and meat of mud crab (Scylla sp.) is done in Laboratory Nutrition Department of Public Health, Universitas Airlangga. Other research methods of observation methods conducted in coastal areas and pond.Wonorejo Surabaya. Heavy metal testing of copper in samples of water, sediment, and meat of mud crab use Absorption Atomic Spectrophotometry (AAS). Results Cu content of heavy metal levels in the meat of mud crab in the Wonorejo river for site 1 and 2 was 0,008 mg/kg and for site 3 was 0,002 mg/kg. This shows the copper content in the meat of mud crab is under the allowable quality standards for copper of 20 mg/kg.
Application of Probiotics for Organic Matter and Enhancement of Growth Performance in White Shrimp (Litopenaeus vannamei) Muhammed Jefri; Woro Hastuti Satyantini; Adriana Monica Sahidu; Daruti Dinda Nindarwi; Rozi Rozi
Jurnal Ilmiah Perikanan dan Kelautan Vol. 12 No. 1 (2020): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v12i1.16618

Abstract

HighlightsLitopenaeus vannamei has been established as alternative to Penaeus monodon to shrimp farming in several countries.Increased importance of in situ microorganisms both in regulating biogeochemical cycles within the culture environment and in directly affecting shrimp growth and survival.To improve water quality in aquaculture is the application of probiotics and/or enzymes to ponds. AbstractIntensive shrimp farming has raised environmental issues due to aquaculture pollution, which is caused by uneaten feed, feces, organic matter, and toxic compounds (ammonia and H2S). One way to solve this issue is by using probiotics. Thus, this study aimed at investigating the effect of probiotic administration (Pseudomonas sp. and Bacillus sp.) at varying concentrations on total organic matter in the rearing water, feed conversion ratio, feed efficiency, and growth rate of white shrimp (Litopenaeus vannamei). This study used a Completely Randomized Design consisting of four treatments: T0 (without the probiotic supplementations), T1 (probiotics at 106 CFU/ml), T2 (probiotics at 107 CFU/mL), T3 (probiotics at 108 CFU/mL) with three replicates each. The results showed that the administration of probiotics at different concentrations had a significant effect on the total amount of organic matter, feed conversion ratio, feed efficiency, and specific growth rate of white shrimp. Administration of probiotics at a concentration of 107 CFU/ ml had the lowest organic matter in the rearing water, 138 mg /Lt. While probiotic administration at 108 CFU/ ml gave the lowest feed conversion ratio (1.22), the highest feed efficiency (81.57%) and the best growth rate (2.25%/day). This research suggests that the administration of 107-108 CFU/ ml probiotics could be applied to reduce organic content in the rearing water and improve the growth performances of white shrimp.