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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Sumberdaya Akuatik Indopasifik Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian
Lutfi Lutfi
Program Studi Budidaya Perikanan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Papua, Jalan Gunung Slaju, Amban, Manokwari, 98314, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary

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STRUKTUR KOMUNITAS BULU BABI (Echinoidea) DI ZONA INTERTIDAL PERAIRAN MANOKWARI Jenly Haurissa; Lutfi Lutfi; Abdul Hamid A. Toha
Jurnal Kelautan Vol 14, No 2: Agustus (2021)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v14i2.10834

Abstract

ABSTRACTSea urchins (Echinoidea) are spread from shallow intertidal areas to the deep sea. This study aims to determine species diversity and abundance of sea urchins in the intertidal zone of Manokwari Waters. The study took place in three locations in the intertidal zone of Manokwari waters. The method used was purposive sampling with a line transect sampling technique measuring 1x1 meter in size. We found 10 species namely H. mammilatus, E. mathaei, E. oblonga, E. viridis, E. lucunter, D. setosum, E. calamaris, D. savignyi, Echinotrix sp., and E. diadema. Sea urchin (H ') index value ranges from H’= 0.2173–0.448430; Index (E) ranges between 0.3108–0.7477 and the Index Value (C) ranges between 0.3769-0.7911 in each of the intertidal zones. L1 (Di = 0.5 ind / 6m2 - 21.8 ind / 6m2); KR = (2.0270%–88.5135%); L2 (Di = 0.5 ind / 6m2–9.5 ind / 6m2; KR = 0.8474% -48.3050%) and L3 (Di = 0.8 ind / 6m2–7.1 ind / 6m2; KR = 7.6923% -66.1538%).Keywords: Abundance, Intertidal, Manokwari, Sea Urchin, Species Diversity,ABSTRAKBulu babi (Echinoidea) tersebar di daerah pasang surut yang dangkal hingga laut dalam. Penelitian ini bertujuan untuk mengetahui keanekaragaman jenis dan kelimpahan bulu babi di zona intertidal. Penelitian dilakukan pada tiga lokasi di Perairan Manokwari. Metode yang digunakan adalah purposive sampling dengan teknik line transect sampling berukuran 1 × 1 meter. Kami menemukan 10 spesies yaitu H. mammilatus, E. mathaei, E. oblonga, E. viridis, E. lucunter, D. setosum, E. calamaris, D. savignyi, Echinotrix sp., dan E. diadema. Nilai indeks bulu babi (H') berkisar dari H' = 0,2173–0,448430; Indeks (E) berkisar antara 0,3108–0,7477 dan Nilai Indeks (C) berkisar antara 0,3769–0,7911. Kelimpahan mutlak dan relatif pada setiap lokasi adalah: L1 (Di = 0,5 ind/6m2 - 21,8 ind/6m2); KR = (2,0270% - 88,5135%); L2 (Di = 0,5 ind/6m2–9,5 ind/6m2; KR = 0,8474% -48.3050%) dan L3 (Di = 0,8 ind/6m2–7,1 ind/6m2; KR = 7.6923% -66,1538%).Kata Kunci: Bulu Babi, Intertidal, Keanekaragaman Jenis, Kelimpahan, Manokwari
PERFORMA PERTUMBUHAN CALON INDUK IKAN GABUS Channa striata YANG DIBERI PAKAN BENIH IKAN NILA Oreochromis sp.: Growth Performance of Snakehead Fish Channa striata Broodstock Feeding By Tilapia Seeds Oreochromis sp. M. Muslim; Andri Iskandar; Andri Hendriana; L. Lutfi
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 11 No. 1 (2021): Jurnal Sains Terapan, Volume 11 Nomor 1, Tahun 2021
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.156 KB) | DOI: 10.29244/jstsv.11.1.1-8

Abstract

ABSTRACTThe purpose of this study was to determine the growth of parent stock snakehead fish Channa striata in a pond fed with tilapia Oreochromis sp. seeds using different feeding rates. Studies were carried out using three different treatments feeding rate (FR), which is 2%, 3%, and 4%. The parameters observed included growth, feed conversion ratio, and water quality. The results showed that the growth of the average weight of fish FR 4% per day (growth rate 86,01 g) had higher than other treatments. The value of feed conversion is 2,5 while the fish is given FR 2%. Parameters of water quality, i.e. pH, temperature, alkalinity, and ammonia still in the range of tolerance.
Pembekuan semen lele dumbo (Clarias gariepinus Burchell 1822) sebagai model kriopreservasi semen ikan [Freezing of african catfish semen (Clarias gariepinus Burchell 1822) as a model of cryopreservation fish semen] Lutfi Lutfi; R. I. Arifiantini; B. Purwantara
Jurnal Iktiologi Indonesia Vol 11 No 2 (2011): Desember 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i2.140

Abstract

Effect of four types of diluents and four concentrations of dimethyl sulfoxide (DMSO) (5%, 10%, 15% and 20%) of African catfish spermatozoa motility were evaluated after storage at freezing temperatures. Efforts African catfish semen cryopreservation in 16-thinning treatment combinations consisting of several stages, namely: preparation of dilution, mixing with DMSO diluents, packing semen in 0.3 mL straw, equilibrasi semen at a temperature of the refrigerator at 4oC for 30 minutes, freezing semen in nitrogen vapor liquid with a height of 6.5 cm for 10 min and subsequent storage of semen in the container of liquid nitrogen (-196oC) for further analyzed post-thawing motility (PTM). Results of analysis PTM, seen the level of sperm motility was shown at PiD15 treatment (45.7 ± 4.3%) and the lowest in P2D20 treatment (14.5 ± 13.2%). The best diluent on this observation is a diluent containing NaCl, KCl, CaCl2 and NaHCO3. The best concentration of DMSO is 15% DMSO concentration. While the best interaction between the diluent with the concentration of DMSO is PiD15 treatments containing NaCl, KCl, CaCl2 and NaHCO3 with a combination of 15% DMSO concentration. Conclusion, making efforts to cryopreservation of African catfish semen can use a diluent containing NaCl, KCl, CaCl2 and NaHCO3 with a combination of 15% DMSO concentration. AbstrakEfek empat jenis pengencer dan empat konsentrasi dimetil sulfoksida (DMSO) (5%, 10%, 15% dan 20%) dari motilitas spermatozoa ikan lele dumbo dievaluasi setelah penyimpanan pada suhu beku. Upaya kriopreservasi semen lele dumbo terhadap 16 kombinasi perlakuan yang terdiri atas beberapa tahap, yaitu: persiapan pengenceran semen lele dumbo; pencampuran dengan bahan pengencer DMSO; pengepakan semen di dalam straw 0,3 ml; equilibrasi pada suhu lemari es pada suhu 4oC selama 30 menit; semen lele dumbo dibekukan di atas uap nitrogen cair dengan tinggi 6,5 cm selama 10 menit dan selanjutnya disimpan dalam wadah nitrogen cair (-196oC) untuk dianalisis lanjut guna melihat postthawing motility (PTM). Hasil analisis PTM, terhadap tingkat motilitas spermatozoa lele dumbo, terlihat bahwa nilai tertinggi pada perlakuan PiD15 (45,7±4,3%) dan terendah pada perlakuan P2D20 (14,5±13,2%). Pengencer terbaik ada-lah pengencer yang mengandung NaCl, KCl, CaCl2, dan NaHCO3. Konsentrasi terbaik DMSO adalah konsentrasi DMSO 15%. Sementara interaksi terbaik antara pengencer dengan konsentrasi DMSO adalah PiD15 perlakuan yang mengandung NaCl, KCl, CaCl2, dan NaHCO3 dengan kombinasi konsentrasi DMSO 15%. Kesimpulan, upaya kriopreservasi sperma lele dumbo dapat menggunakan pengencer yang mengandung NaCl, KCl, CaCl2, dan NaHCO3 dengan kombinasi konsentrasi DMSO 15%.
Perkembangan gonad ikan betok (Anabas testudineus) betina yang diinduksi ekstrak hipofisa sapi Tanbiyaskur Tanbiyaskur; Mirna Fitrani; Muhammad Fahrudin; Lutfi Lutfi; Muslim Muslim
Jurnal Sumberdaya Akuatik Indopasifik Vol 6 No 1 (2022): Februari
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2022.Vol.6.No.1.155

Abstract

The purpose of this study was to determine the effect of giving bull pituitary extract on the development of gonads of female broodstock of climbing perch (Anabas testudineus). The research method used a completely randomized design, four treatment doses of pituitary extract, namely 0.0; 0.1; 0.3; 0.6 ml/kg. Muscular injection of pituitary extract. The results showed that the dose of 0.6 ml/kg, the best performance of gonad development, where the egg diameter was 0.640 mm, the somatic index was 4.22%, the hepatosomatic index was 0.18% and the total fecundity was 6404 eggs. Water quality parameters during fish rearing are in a good range for gonad development of climbing perch fish.
Co-Authors Abdul Hamid A. Toha B. Purwantara Hendriana, Andri Iskandar, Andri Jenly Haurissa Mirna Fitrani Muhammad Fahrudin Muslim Muslim R. I. Arifiantini Tanbiyaskur Tanbiyaskur