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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Florea Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Asrul Sahri Siregar
Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Social Sciences Other

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Survival Rate, Growth And Chemical Content of Dendronereis pinnaticirris (Polychaeta, Nereidae) In Maintenance With Different Food And Substrate Eko Setio Wibowo; Edy Yuwono; Purnama Sukardi; Asrul Sahri Siregar
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 25, No 2 (2020): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.811 KB) | DOI: 10.14710/ik.ijms.25.2.75-84

Abstract

The worm Dendronereis pinnaticirris is used as feed of shrimp broodstock in a hatchery, mainly because of its availability in the local market, and its nutritional content required for improving gonad maturation and post larvae production. The important economic value of the worm and the increasing demand for feed in shrimp hatcheries have led to an intense exploitation that suppers its population and the sustainability of the whole estuarine ecosystem. The study, which represents the starting point of large-scale production of the polychaete worm by culture in the artificial system, shall be undertaken. Accordingly, a production study using D. pinnaticirris juvenile was carried out under controlled conditions fed with two different feed (feed contains mainly plant protein and animal protein, respectively), and kept in three different substrates (substrate consists of mud and 8.78%, 37.34%, 39.17% sand, respectively). The treatments were arranged according to randomized completely block design in 8 (eight) replicates. The survival rate, body weight increment and growth, oxygen consumption, proximate body chemical, and fatty acid contents were measured. The results showed that growth and oxygen consumption was significantly influenced by a substrate and feed type (P<0.05).  Worms on the mud substrate with 39.17% sand, and feed containing vegetable protein showed the highest oxygen consumption.  Survival rate and chemical body content were not significantly influenced by the type of substrate and feed (P<0.05). The protein content of the worm was 32.02-43.81%, while fat content was 2.41-9.89%. Twenty different fatty acids were identified in the worm of all treatment groups. 
KOMPOSISI DAN LUAS RELUNG MAKANAN IKAN PALUNG (Hampala macrolepidota C.V.1823) DI WADUK PB. SOEDIRMAN BANJARNEGARA, JAWA TENGAH Elsa Melisa; Asrul Sahri Siregar; Siti Rukayah
Florea : Jurnal Biologi dan Pembelajarannya Vol 8, No 2 (2021)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/florea.v8i2.11049

Abstract

This study aims to determine the composition and value of the natural feed niche of trough fish caught from the waters of the PB Reservoir. Sudirman. The research method used is a survey method with a sampling technique using purposive random sampling. The research location was divided into three stations, namely I (Karang Kemiri), II (Wanadadi), and III (Karang Jambe). Sampling was carried out three times (19 February, 07 March, and 2 August 2020). Data were analyzed descriptively comparatively. The results showed that the composition of the trough fish diet was dominated by Chlorophyta and plant debris. Based on the selectivity index and the most significant part of trough fish, including omnivorous fish. Large trough fish have a high food niche area. Small, medium and large trough fish have stiff competition for food in the waters
Peningkatan Keterampilan Petani pada Usaha Budidaya Ikan Lele dengan Teknologi Kawin Suntik Norman Prayogo; Purnama Sukardi; Asrul Sahri Siregar
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 6 (2022): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v6i6.7825

Abstract

Answering higher challenge of occupational area along with smaller available job opportunities, it is needed business creation for the society based on local resources and science and technology. One of aquaculture activity that conducted was application of injected spawning technique among and rearing larvae of catfish. The objective of this activity, skill, and increase income also as a new economic activity for students in Farmer Group Mandiri Jaya, Sokaraja, Banyumas. Research method comprised of activities like transfer of knowledge, training, demonstration plot and application of production for 4 months. Evaluation of technology transfer activity viewed from questionnaire value, training and demonstration plot viewed from ability and of participant to produce seed and profit gained. Generally, knowledge and skill of participant was improved. However viewed from production yield was still varied Evaluasi kegiatan transfer teknologi dilihat dari nilai kuisioner , pelatihan dan percontohan dilihat dari kemampuan dan keterampilan penguasaan teknologi sedangkan aplikasi produksi adalah kemampuan peserta menghasilkan benih dan keuntungan yang diperoleh. Secara umum pengetahuan, keterampilan peserta meningkat. Namun ditinjau dari segi hasil produksi masih bervariasi.
Co-Authors Edy Yuwono Eko Setio Wibowo Elsa Melisa Norman Prayogo Purnama Sukardi Siti Rukayah