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All Journal Management of Aquatic Resources Journal (Maquares) Journal of Aquaculture Management and Technology Jurnal Kelautan Tropis Omni-Akuatika Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Jurnal Riset Akuakultur Jurnal Litbang: Media Informasi Penelitian, Pengembangan dan IPTEK Scripta Biologica
Dicky Harwanto
Department Of Aquaculture, Faculty Of Fisheries And Marine Science, Universitas Diponegoro. Jl. Prof. H. Soedarto, S.H., Tembalang, Semarang 50275, Central Java, Indonesia. Tel.: +62-24-7474698, Fax.: +62-24-7474698
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Other

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Strategi pemasaran hasil panen akuakultur pada berbagai level pokdakan di Kabupaten Banyumas Salim, Rahmad Aditya; Elfitasari, Tita; Harwanto, Dicky
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 9, No 1 (2025): SAT edisi Maret
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v9i1.22147

Abstract

Kelompok pembudidaya ikan (Pokdakan) adalah kumpulan pembudidaya ikan yang terorganisir, mempunyai pengurus, aturan – aturan serta tumbuh dan berkembang atas dasar perasaan saling tertarik, karena kebutuhan akan tukar menukar informasi untuk saling melengkapi dan kesamaan kepentingan dan kesamaan kondisi lingkungan (sosial, ekonomi dan sumberdaya) untuk mengembangkan usaha perikanan anggotanya. Pokdakan terbagi menjadi 3 level, yaitu level pemula, madya dan utama. Pemasaran merupakan bagian tak terpisahkan dari budidaya ikan karena dengan pemasaran produk yang diproduksi dapat sampai ke tangan kosumen. Tujuan penelitian ini untuk mengetahui perbedaan strategi pemasaran antara level pemula, madya dan utama. Penelitian yang dilakukan merupakan penelitian kualitatif. Responden merupakan anggota pokdakan di Kabupaten Banyumas sejumlah 8 orang dan 1 informan sebagai penguji keabsahan sumber data penelitian. Hasil temuan penelitian menunjukkan perbedaan strategi pemasaran antar pokdakan lebih disebabkan karena kebijakan tiap-tiap pokdakan dalam mengenali dan menyelesaikan masalah yang mereka hadapi bukan disebabkan karena perbedaan level pokdakan. Tidak banyak perbedaan antara pokdakan level pemula dan madya dalam aspek pemasaran.
The Effect of Stocking Density on Survival and Growth of Tiger Shrimp (Penaeus monodon) Cultivated with Seaweed (Gracilaria sp.) in Traditional Pond Rejeki, Sri; Ibrahim, Maulana; Harwanto, Dicky
Journal Omni-Akuatika Vol 21, No 1 (2025): Omni-Akuatika May (in progress)
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2025.21.1.1169

Abstract

In order to overcome the decline of pond carrying capacity due to intensification, polyculture of Penaeus monodon with Gracilaria sp. can be implemented to allow sustainability. This study aimed  to evaluate the effect of shrimp densities in a polyculture system with Gracilaria sp. on the shrimp’s survival rate and growth. The research design used in this study was Randomized Block Design (RBD) in triplicate with 3 treatments of stocking density (2, 3, and 4 ind/m2). This research was carried out for 90 days in extensive ponds with 0% use of artificial feed. At the end of the study, the results showed that different stocking density applied had no significant effect (p>0.05) on growth performance. Nonetheless, shrimp at a stocking density of 2 ind/m2 had the highest survival rate (30.30±1.48%) compared to other treatments. Higher shrimp density causes competition for space, food, and oxygen which leads to stress resulting in suppressed growth of shrimp. However, Gracilaria integration in shrimp polyculture effectively reduces nutrient loads and stabilize water quality (temperature, pH, salinity, and DO), leading to improved shrimp health and a decreased need for chemical inputs, offering a practical, eco-friendly solution for maintaining shrimp growth in such a denser environment.Keywords: algae, aquaculture, bioremediation, coastal, integrated
Peppermint Oil Administration Can Stabilizes Blood Glucose and Improves Survival of Bonylip Barb in Closed Transportation System Azizah, Latifah Nur Reza; Harwanto, Dicky; Nurhayati, Dewi; Suryaningtyas, Indyaswan Tegar
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 9, No 2 (2025): SAT edisi September
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v9i2.29321

Abstract

Transportation of Bonylip barb fish is important for supports the production of cultivation and economic markets distribution. The high mortality of Bonylip barb seeds is an problem for Bonylip barb fish farmers. An addition of peppermint oil (Mentha piperita L.) attempts to suppress respiratory response and minimize mortality. The purposes the research was to test the effect of peppermint oil on Bonylip barb seeds and find out the best dosage of peppermint oil on Bonylip barb seeds. The research design is Completely Randomized Design consisting of 4 treatments and 3 replications, i.e. A (0 mL/L); B (0.1 mL/L); C (0.2 mL/L); and D (0.3 mL/L). This study used Bonylip barb seeds (3.33 ± 0.58 g) with density of 20 fish/L. Research procedures included seed preparation and acclimatization, fasting, adding peppermint oil, packaging, fish transportation for 8 hours, and rearing for 7 days. The results showed that peppermint oil had a significant effect on induction time, recovery time, blood glucose after transportation and maintenance, and survival life of Bonylip barb seeds.  The best dose of peppermint oil was shown by 0.1 mL/L, which produced an induction time of 8.14 ± 5.07 minutes and a sedative time of 11.54 ± 2.60 minutes; fish blood glucose after transportation and maintenance was 68.33 ± 3.06 mg/dL and 64.67 ± 0.58 mg/dL, and the survival rate of 88.33 ± 5.77%. Result of this research is expected to provide essential guidance for fish farmers during the transportation of Bonylip barb, helping to enhance the safety and well-being of the fish throughout the shipping process
PENGARUH EKSTRAK KASAR JAGUNG (Zea mays) SEBAGAI ZAT PENGATUR TUMBUH ALAMI TERHADAP LAJU PERTUMBUHAN Caulerpa racemosa Rahmawati, Winda; Harwanto, Dicky; Windarto, Seto
Jurnal Riset Akuakultur Vol 17, No 2 (2022): (Juni) 2022
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.17.2.2022.109-120

Abstract

Caulerpa racemosa atau dikenal dengan nama latoh adalah salah satu komoditas perikanan yang digemari karena memiliki kandungan gizi yang tinggi. Namun, dalam budidaya C. racemosa masih terdapat kendala yaitu produksi yang belum maksimal dan pertumbuhan yang belum optimal. Salah satu cara untuk meningkatkan pertumbuhannya yaitu dengan melakukan perendaman bibit rumput laut menggunakan hormon pertumbuhan dari ekstrak bahan alami. Jagung merupakan salah satu bahan alami yang mengandung hormon pertumbuhan giberelin, sitokinin, dan auksin. Hormon tersebut dapat merangsang pertumbuhan batang dan akar. Tujuan dari penelitian ini adalah untuk mengetahui efektivitas penambahan hormon dengan menggunakan ekstrak kasar jagung terhadap pertumbuhan dan morfologi C. racemosa dan mengetahui lama waktu perendaman terbaik ekstrak kasar jagung terhadap pertumbuhan C. racemosa. Penelitian ini dilakukan dengan menggunakan metode eksperimen dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 kali pengulangan. Perlakuan yang dilakukan yaitu perendaman selama 0 menit (sebagai kontrol) (A), 30 menit (B), 40 menit (C), dan 50 menit (D). Data yang diperoleh selama penelitian meliputi morfologi, pertumbuhan bobot mutlak, laju pertumbuhan spesifik, dan kualitas air. Lama waktu perendaman C. racemosa dalam media ekstrak kasar jagung berpengaruh nyata (P<0,05) terhadap pertumbuhan. Perlakuan B menunjukkan hasil terbaik terhadap pertumbuhan bobot mutlak (123,63 ± 6,55 g) dan laju pertumbuhan spesifik (4,15 ± 0,21% per hari). Perlakuan B memiliki morfologi thalus dan ramulli yang besar serta rimbun. Parameter kualitas air dalam kisaran yang sesuai untuk pertumbuhan C. racemosa.Caulerpa racemosa, known as latoh, is a popular edible green alga due to its high nutritional content and medicinal benefits. However, low quality and slow growth of seed prevented the aquaculture development C. racemosa. Soaking the seaweed seed with growth hormone immersion from extracts of natural ingredients could potentially improve its growth rate. Corn contains growth hormone gibberellins, cytokinins, and auxins. These hormones can stimulate the growth of stems and roots. This study aimed to determine the effectiveness of growth hormones in corn crude extract and the best soaking time of the extract on the growth development and morphology of C. racemosa. This research was conducted using an experimental method with a Completely Randomized Design (CRD) consisting of four treatments with three replicates. The treatments were soaking the seed in corn extract for 0 minutes (as a control) (A), 30 minutes (B), 40 minutes (C), and 50 minutes (D). The data obtained during the study included morphology, absolute weight growth, specific growth rate, and water quality. The duration of immersion of C. racemosa in maize extract media had a significant effect (P<0.05) on growth. Treatment B showed the best results with absolute weight growth and growth rate values of 123.63 ± 6.55 g and 4.15 ± 0.21% per day, respectively. This research successfully determines that corn extract improves the growth of C. racemosa seeds indicated by the large thallus and ramuli of the cultured seaweed.
Co-Authors Agung Sudaryono Agus Nadlir Aji, Nisa Pamesty Rahma Alfabetian Harjuno Condro Haditomo Ali Imron Ariska Nur Oktavia Aryanti, Astarini Shabrina Ayudya Wisma Hapsari Azizah, Latifah Nur Reza Bella Manik Hapsari CHONDRORESMI BANOR FAWWAZ Desrina Desrina Dewi Nurhayati Hani Wahyunida Isnaini Herna Octivia Damayanti Ibrahim, Maulana Istiqomah, Dian Annisa Johannes Hutabarat Kurnia Adi Lailiyah, Mamluatul Lisya Junus Martha Wahyuningrum Metachul Husna Mira Andhika Pierrenia Muchammad Zidni Ilman Nadia Elisabet Br. Hutapea Norma Afiati Nurul Aziz Panjaitan, Rio Judika Samuel Prayitno, S. Budi Putri Puspita Ningrum Rosa Amalia RR. Ella Evrita Hestiandari Salim, Rahmad Aditya Sarjito - Seto Windarto Sigit Bayu Aji Sri Hastuti Sri Rejeki Sri Rejeki Suminto Suminto Suryaningtyas, Indyaswan Tegar Sya’bana, Izzatin Nashiroh Tita Elfitasari Titik Susilowati Tristiana Yuniarti Winda Rahmawati Windarto, Seto Wisnu Widyantoro Zuib, Mauvi Ahdha