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All Journal Grouper: Jurnal Ilmiah Perikanan Jurnal Airaha
Izza Mahdiana
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Education Engineering Environmental Science Immunology & microbiology Social Sciences Veterinary

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EVALUASI SELEKTIVITAS DAN KERAMAHAN LINGKUNGAN ALAT TANGKAP DOGOL DI KABUPATEN PANGANDARAN PROVINSI JAWA BARAT Lantun Paradhita Dewanti; Izza Mahdiana; Irfan Zidni; Heti Herawati
Jurnal Airaha Vol 7 No 01: Juni 2018
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (480.513 KB) | DOI: 10.15578/ja.v7i01.84

Abstract

The purpose of this study was to determine the selectivity and level of environmental friendliness of mini bottom trawl in Pangandaran District. This research conducted on May-October 2017. Primary data obtained from purposive sampling either by interview or observation Selectivity indicator used was selectivity of catch species and size. Environmental friendly fishing was evaluated based on the FAO criteria. The result showed that catch rate of mini bottom trawl was 26.45 kg/hour. The main catch of mini bottom trawl in Pangandaran District was Trachypenaeus asper amount of 39,5% while by catch was Acetes sp¸ Oiolithes ruber, Trichiurus lepturus, and others catch with amount 60,40%. Catch size of mini bottom trawl main catch was ranged 4 cm - 9.90 cm. The main catch was 39,00% was more than size capture and under size capture was 61.00%. Catch utilization of this fishing gear was 93%. The result evaluation of environmental friendliness based on catch selectivity was 6 point which mean ‘less environmentally’ friendly while FAO criteria showed 18 point which mean ‘not environmentally’ friendly fishing.
Effect of Adding Bioactive Compounds from Brown Algae (sargassum sp.) in Feed on The Growth Performance of Mahseer Seeds (Tor soro) M Gufron Sugih; Fittrie Meyllianawaty Pratiwy; Izza Mahdiana; Irfan Zidni
Grouper Vol. 15 No. 2 (2024): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v15i2.267

Abstract

This study aims to determine the influence and determination of the optimal dose of the addition of brown algae extract on the growth performance and immunity of god fish seeds. The research was conducted in March - May 2024, at the Aquaculture Lab Building 4, FPIK Unpad, and the production of brown algae extract was carried out at the Aquaculture Lab Building 2, FPIK Unpad. This study used a complete randomized design (RAL) experimental method with four treatments and four replicates. The treatments given were (A) 100% commercial feed (control), (B) commercial feed added with brown algae extract at a dose of 10gr/kg, (C) commercial feed added with brown algae extract at a dose of 15 g/kg, and (D) commercial feed added with brown algae extract at a dose of 20 g/kg. The maintenance of fish fry is carried out for 40 days, with feeding three times a day. The observed parameters included absolute length growth parameters (L), absolute weight (W), specific growth rate (SGR), feed conversion ratio (FCR), feed utilization efficiency (EPP), and survival rate (SR) which were analyzed using ANOVA (Analysis of Varience) with a confidence level of 95%, if there is a significant difference, followed by the Duncan test. Water quality data was analyzed descriptively. The results showed that the addition of brown algae extract for feed at a dose of 20gr/kg had a more optimal effect than other treatments because of the bioactive compounds it contained. The dose had an effect on the growth of absolute length (1.6 cm), absolute weight (126.3 g), SGR (2.39%), FCR (2.28), EPP (44%) and water quality values during the maintenance period were still in the optimal range for god fish seeds.
Co-Authors Fittrie Meyllianawaty Pratiwy heti herawati Irfan Zidni Lantun Paradhita Dewanti M Gufron Sugih