Nicodemus Dahoklory
Fakultas Peternakan Kelautan Dan Perikanan, Universitas Nusa Cendana, Kupang

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PERTUMBUHAN DAN KANDUNGAN KARAGINAN RUMPUT LAUT Kappaphycus striatum DENGAN MENGGUNAKAN MEDIA BUDIDAYA YANG BERBEDA DI PERAIRAN DESA OENAEK, NUSA TENGGARA TIMUR Windya Ynryani Boimau; Ridwan Tobuku; Nicodemus Dahoklory
Jurnal Aquatik Vol 9 No 1 (2026): Edisi Maret 2026
Publisher : Nusa Cendana University

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The aim of this study was to evaluate the effect of different culture media on the growth and carrageenan content of the seaweed Kappaphycus striatum. The study was conducted over 45 days in the waters off Oenaek Village, Kupang Regency, using three types of cultivation media: UV-treated plastic (Treatment A), mesh bags (Treatment B) and the conventional or long-line method (Treatment C), each with three replicates. The parameters observed included absolute weight growth, specific growth rate, and carrageenan content. The results showed that the conventional method (Treatment C) yielded the best results compared to the other treatments, with an average absolute weight growth of 296.99 g and a specific growth rate of 4.30% per day. The highest carrageenan content was also found in Treatment C, at 111 per cent. Statistical analysis using ANOVA showed no statistically significant effect on absolute growth and SGR (p > 0.05); however, from a biological perspective, the conventional medium yielded the most optimal results. These findings indicate that the conventional cultivation method (long line) is more effective in enhancing the productivity and quality of K. striatum seaweed. Keywords: Kappaphycus striatum, carrageenan, cultivation medium, long line, growth
Pengaruh Tepung Cacing Sutra (Tubifex sp) Dan Pelet Komersial Yang Dikombinasi, Terhadap Pertumbuhan Dan Kelangsungan Hidup Ikan Bandeng (Chanos chanos) Gradiana Rany Seran; Nicodemus Dahoklory; Asriati Djonu
Jurnal Aquatik Vol 9 No 1 (2026): Edisi Maret 2026
Publisher : Nusa Cendana University

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Silkworm flour is a natural ingredient, which has a high protein content that is suitable as a combination ingredient for milkfish feed. The purpose of this study was to determine the effect of providing a combination of silkworm flour (Tubifex sp) and commercial pellets on the growth and survival of milkfish (Chanos chanos). This study was conducted in the milkfish pond of Fahiluka Village, Central Malaka, East Nusa Tenggara for 60 days using a Completely Randomized Design (CRD) with 5 treatments and 2 replications. Treatments consisted of A (100% pellets), B (25% silkworm flour + 75% pellets), C (50% silkworm flour + 50% pellets), D (75% silkworm flour + 25% pellets), and E (85% silkworm flour + 15% pellets). The parameters observed in this study included absolute weight growth, specific daily growth (SGR), survival rate, and water quality. The results of this study indicate that treatment E produced the highest absolute weight gain (18.45 g), significantly different (p<0.05) compared to other treatments. The survival rate of the study reached 100% in all treatments. Water quality measurements during the study were within the optimal range for milkfish growth. Therefore, the combination of 85% silkworm meal and 15% pellets is the best feed to increase milkfish growth without affecting its survival. Keywords: Chanos chanos, Survival, Feeding, Growth, Tubifex sp