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Analisis Dampak Lingkungan (AMDAL) Pada Sektor Budidaya Laut Dengan Sistem Keramba Jaring Apung (KJA) Di perairan Teluk Ekas Lombok Timur Nusa Tenggara Barat Aonullah, Asep Akmal; BR Ritonga, Lusiana; Nisa, Andina Chairun; Fahruddin, Faisal; Nazran
JURNAL LEMURU Vol 6 No 1 (2024): JURNAL LEMURU: Jurnal Ilmu Perikanan dan Kelautan Indonesia
Publisher : Program Studi Teknologi Hasil Perikanan|Fakultas Pertanian|Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jl.v6i1.3503

Abstract

Pengembangan sektor perikanan budidaya laut di perairan Nusa Tenggara Barat (NTB) salah satunya terletak diperairan Teluk Ekas, Lombok Timur, dimana umumnya kegiatan budidaya yang dilakukan merupakan budidaya ikan dengan sistem keramba jaring apung. Perairan Teluk Ekas sangat berpotensi bagi pengembangan budidaya laut, karena memiliki sumberdaya ikan yang cukup beragam serta karakteristik perairannya yang terlindung dan relatif tenang. Kawasan Teluk Ekas merupakan salah satu sentral terbesar budidaya laut di kabupaten Lombok Timur. Namun, patut disadari bahwa salah satu kunci keberhasilan budidaya adalah dengan penentuan lokasi yang sesuai dan memperhatikan aspek daya dukung lingkungannya. Kegiatan budidaya juga menghasilkan limbah organik yang berasal dari sisa pakan dan hasil metabolisme kultivan budidaya. Karena itu perlu dilakukan tinjauan terhadap daya dukung lingkungan perairan Teluk Ekas dari pra produksi-produksi dan pasca produksi. Kajian ini bertujuan untuk menganalisis daya dukung lingkungan budidaya keramba jarring apung. Metodologi yang digunakan adalah dengan telaah pustaka dari beberapa penelitian terdahulu yang terkait dengan dampak kegiatan budidaya laut. Dari kajian diamati tahap produksi lebih menimbulkan banyak dampak negatif bila dibandingkan dengan tahap pra produksi dan pasca produksi. Dampak yang dihasilkan pada tahap produksi, lebih banyak ditimbulkan saat kegiatan pemeliharaan. Hal tersebut menimbulkan perubahan pada lingkungan sekitar seperti adanya perubahan bentuk lahan, penurunan kualitas air laut, dan terganggunya biota disekitar kawasan perairan.
THE GROWTH PERFORMANCE OF WHITE SNAPPER (Lates calcarifer) FINGERLINGS IN ODE AQUACULTURE AND AGRICULTURE HATCHERY UNIT, BRUNEI-MUARA BRUNEI DARUSSALAM DISTRICT Ritonga, Lusiana BR; Harijono, Teguh; Asmarany, Anja; Widodo, Agus; Aonullah, Asep Akmal; Akbar, M.Baihaqi; Affisramyraj, Rizky
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.14754

Abstract

White snapper (Lates calcarifer) is a high value aquaculture commodity with increasing market demand. This study aimed to analyzed the growth performance of white snapper fry during the nursery phase at the ODE Aquaculture and Agriculture Hatchery Unit, Brunei-Muara District, Brunei Darussalam, from March to June 2023.The nursery utilized controlled fiberglass tanks equipped with aeration and a flow-through water system. Two types of tanks were used: rectangular tanks measuring 4 × 1.5 × 1 m (capacity: 6,000 L) and circular tanks with a diameter of 2 m (capacity: 3,140 L). A total of 100,000 fry were stocked, with 30,000–40,000 fry per tank. Observed parameters included survival rate (SR), absolute length growth rate, absolute weight growth rate, specific growth rate (SGR), and feed conversion ratio (FCR). Water quality parameters measured were temperature, salinity, and pH. Results indicated an absolute length growth rate of 1.2 cm/week, surpassing previous studies reporting only 0.4 cm/week. The absolute weight growth rate was 1.3 g/week, exceeding the 0.6–1 g/week range reported in other research. The FCR was 0.33, demonstrating excellent feed efficiency. However, the survival rate was 30.77%, below the standard for controlled nursery systems (>50%), likely due to high stocking density and cannibalism. Harvest size ranged from 8 to 9 cm. Water quality remained stable, with temperatures between 31–32.5°C, pH levels from 7.6–8.3, and salinity ranging from 30–32 ppt. Despite the low survival rate attributed to high stocking density, the nursery phase at this facility achieved commendable growth rates compared to previous studies. This success is supported by stable water quality and the provision of high-protein feed.
WATER QUALITY AND VIBRIO DYNAMICS IN VANNAMEI SHRIMP HATCHERY AT PT DELTA WINDU PURNAMA, SITUBONDO Dwi Saputro, Nella Azzahra; Suprakto, Bambang; Aonullah, Asep Akmal
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.15680

Abstract

Vannamei shrimp (Litopenaeus vannamei) is a high-value aquaculture commodity. However, during the post-larval rearing phase, fluctuations in water quality and high abundance of Vibrio can cause stress and larval mortality. Therefore, evaluation of rearing practices and water quality is important to support successful juvenile shrimp production. This study aims to evaluate water quality, health, and growth of vannamei shrimp juveniles during the post-larval rearing period. Rearing was conducted from PL4–5 to PL10–11 using three tanks measuring 6 x 4 x 2 meters (water volume 40 tons), each labeled A6, B4, and B11. The fry quality results showed that all tanks achieved grade A, with optimal stadia development and gut muscle ratio. Observations on juvenile shrimp health revealed no necrosis, low Vibrio infection, and high stress resistance. Observations on post-larval growth showed an average length of 7.76–9.27 mm and an average survival rate of 88%, exceeding the minimum standard of SNI 7311:2009. Therefore, effective water quality management and control of Vibrio abundance during the rearing period of shrimp post-larvae can significantly improve the survival rate and quality of vannamei shrimp post-larvae.