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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Akuakultur Indonesia Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Jurnal Akuakultur Rawa Indonesia Maspari Journal Biospecies Jurnal Veteriner Bumi Lestari ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Natur Indonesia Berkala Perikanan Terubuk BIOTROPIA - The Southeast Asian Journal of Tropical Biology Maspari Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Aceh Journal of Animal Science Jurnal Edukasi dan Sains Biologi JURNAL BIOLOGI INDONESIA ZOO INDONESIA Jurnal Biodjati Omni-Akuatika Acta Aquatica: Aquatic Sciences Journal LIMNOTEK - Perairan Darat Tropis di Indonesia Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Indonesian Aquaculture Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Zoo Indonesia Jurnal Risalah Kebijakan Pertanian dan Lingkungan JESBIO : Jurnal Edukasi dan Sains Biologi Manfish Journal

RIDWAN AFFANDI

Departemen Manajemen Sumber Daya Perairan Fakultas Perikanan Dan Ilmu Kelautan, Institut Pertanian Bogor, Bogor 16680, Jawa Barat, Indonesia.

Author-ID : 431625

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Social Sciences Veterinary Other

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Distribusi Ukuran, Pola Pertumbuhan, dan Faktor Kondisi Ikan Endemik Opudi (Telmatherina prognatha) di Danau Matano, Sulawesi Selatan Andi Chadijah; Sulistiono Sulistiono; Gadis Sri Haryani; Ridwan Affandi; Ali Mashar
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 4 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Opudi fish (Telmatherina prognatha) is an endemic fish that live in the Lake Matano. Growth pattern of Telmatherina prognatha is very important to be studied for species conservation and management effort. This study aimed to analyze size distribution, growth pattern and condition factors of the fish as a basic information for fish resources management at Lake Matano. The study was conducted from March to August 2018 on six sampling locations. The fish sampling was carried out using multifilament nets with 0.5 inches in mesh size (30 m length and 2 m width) in the lake. The caught fishes were measured for total length and weight for growth analysis. The total of fish (n=853 individuals) consisted of male (483 individuals) and female (370 individuals). Total length (TL) of the fish ranged between 36.46-64.09 mm (mean 51.73±4,74mm) for male and 32.93-66.20 mm (mean 49.81±5.31 mm) for female fish. The growth patterns (length-weight relationships) of male and female fish were W=0.0004L2,5995 and W=0.0006L2,4875, indicating negative allometric growth patterns, respectively. Range condition factors in average were various and 0.9864±0.2084 in average for male and 1.0121±0.1571 for female, respectively, with quite high values on June 2018.

Pair replacement on the spawning success of broodstock Seahorse (Hippocampus barbouri) . Syafiuddin; M. Zairin Junior; Dedi Jusadi; Odang Carman; Ridwan Affandi
Jurnal Akuakultur Indonesia Vol. 10 No. 1 (2011): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Seahorse, (Hippocampus barbouri) is one of marine living resources having high commercial values and has commonly been traded especially as live ornamental aquarium fish, raw material of traditional medicine and as souvenirs. This expriment was conducted to determine the succces of spawning rate by replacing the broodstock pair of seahorse. This study was done experimentally with treatment of replacement of broodstock pair after spawning under control condition. The experiment was designed to apply completely randomize design by using the following treatments: Treatment A, without replacement neither male nor female. Treatment B, spawned female broodstock was being mated with her unpaired male broodstock. Treatment C, a male broodstock that still brood was being mated with his unpaired female broodstock. Treatment D, a spawned male broodstock that has released larva was being mated with his unpaired female broodstock. Results showed that under control condition the replacement of broodstock pairs of seahorse had significantly influenced the spawning interval, number of eggs released and number of juveniles produced (P0,05). It can be concluded that seahorse is not monogamous, either male or female after being spawned may accept other pair for the next spawning. Key words: pair replacement, broodstock, success spawning, Hippocampus barbouri ABSTRAK Kuda laut, (Hippocampus barbouri) merupakan salah satu sumberdaya hayati laut yang memiliki nilai komersial dan telah banyak diperdagangkan terutama sebagai ikan hias, bahan baku obat tradisional dan juga sebagai suvenir. Penelitian ini dilakukan dengan tujuan untuk mengkaji tingkat keberhasilan pemijahan dengan penggantian pasangan induk kuda laut pada wadah budidaya. Percobaan ini dilakukan secara ekperimental dengan perlakuan penggantian pasangan induk setelah pemijahan dalam wadah budidaya. Percobaan dirancang dengan menggunakan rancangan acak lengkap (RAL) dengan perlakuan sebagai berikut: Perlakuan A, pemijahan sepasang induk kuda laut (tanpa pergantian). Perlakuan B, pemijahan induk betina yang telah memijah dengan induk jantan bukan pasangannya. Perlakuan C, pemijahan induk jantan yang telah memijah (mengerami telur) dengan induk betina bukan pasangannya. Perlakuan D, pemijahan induk jantan yang telah melahirkan dengan induk betina bukan pasangannya. Hasil penelitian menunjukan bahwa penggantian pasangan induk pada wadah budidaya sangat berpengaruh terhadap interval pemijahan, jumlah telur yang dikeluarkan dan jumlah juwana yang dihasilkan (P0,05). Dari hasil penelitian ini disimpulkan bahwa kuda laut, tidak bersifat monogami, artinya baik jantan maupun betina setelah memijah dapat menerima pasangan lain untuk pemijahan berikutnya. Kata kunci: induk, keberhasilan pemijahan, pergantian pasangan, Hippocampus barbouri

Substitution time of natural food by artificial diet on survival rate and growth of pacific white shrimp (Litopenaeus vannamei) postlarvae during rearing in low salinity media Ferdinand Hukama Taqwa; Daniel Djokosetiyanto; Ridwan Affandi
Jurnal Akuakultur Indonesia Vol. 10 No. 1 (2011): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

This research was conducted to determine natural food substitution time by artificial diet after salinity acclimatization from 20 ppt until 2 ppt, which can increase survival and growth of (Litopenaeus vannamei) postlarvae during rearing period. Design experiment was completely randomized design with five treatments and three replications of natural food Chironomus sp. (60% of crude protein) substitution time by artificial diet (40% of crude protein) at day: 1 (A), 7 (B), 14 (C), 21 (D) and full natural food without artificial diet (E) during 28 days rearing period. White shrimp postlarvae and rearing media in this experiment based from best result of earlier research that is PL25 from acclimatization in media 2 ppt with addition of potassium 25 ppm to freshwater media. The densities of PL25 white shrimp were 20 PLs/50 liters of 2 ppt media. The result of this experiment showed that the use of artificial diet as soon as after salinity acclimatization (PL25) gave best performance production compared to which only that was given natural food Chironomus sp. during experiment or with treatment by artificial diet substitution at day-7, day-14 or day-21, shown with the highest value of food consumption level, protein retention, energy retention, daily growth rate and food efficiency. Survival rate of PL54 was above 80% and not significant different between treatment. That is supported by chemical-physical value of water quality still in range appropriate to survival rate of white shrimp post larvae during a rearing period. The result of this experiment indicated that requirement nutrient of PL25 in low salinity did not fulfilled if only rely on natural food, so that require artificial diet with nutrition content to support growth and survival rate of white shrimp post larvae more maximal. Key words: salinity, natural food, artificial diet, Pacific white shrimp ABSTRAK Tujuan penelitian ini adalah untuk menentukan waktu penggantian pakan alami oleh pakan buatan yang tepat selama masa pemeliharaan postlarva udang vaname di media bersalinitas rendah setelah melalui masa aklimatisasi penurunan salinitas dari 20 ppt hingga 2 ppt, sehingga dapat meningkatkan pertumbuhan dan kelangsungan hidup. Rancangan percobaan berupa rancangan acak lengkap dengan perlakuan yang diterapkan berupa waktu penggantian pakan alami Chironomus sp. (kadar protein 62%) oleh pakan buatan (kadar protein 40%) pada hari ke-1 (A), ke-7 (B), ke-14 (C), ke-21 (D) dan pakan alami (E) selama masa pemeliharaan. Postlarva udang vaname dan media pemeliharaan yang dipergunakan selama percobaan mengacu pada hasil terbaik yang didapatkan dari penelitian pendahuluan yaitu berupa PL25 hasil aklimatisasi di media bersalinitas 2 ppt dengan penambahan kalium 25 ppm ke media air tawar pengencer. Padat tebar sebanyak 20 ekor/50 liter/wadah. Hasil percobaan menunjukkan bahwa pemberian pakan buatan yang diberikan segera setelah masa aklimatisasi salinitas (pada awal pemeliharaan PL25) memberikan performa produksi budidaya terbaik bila dibandingkan dengan yang hanya diberi pakan alami selama masa pemeliharaan maupun waktu penggantian pakan alami oleh pakan buatan pada hari ke-7, ke-14 dan hari ke-21 yang ditunjukkan dengan tingkat konsumsi pakan, retensi protein, retensi energi, laju pertumbuhan harian dan efisiensi pakan yang tertinggi. Kelangsungan hidup di akhir pemeliharaan (PL54) di atas 80% dan tidak berbeda nyata antar perlakuan. Hal ini ditunjang oleh nilai fisika kimia air yang berada dalam kisaran yang layak selama masa pemeliharaan. Hasil percobaan ini menunjukkan bahwa kebutuhan nutrisi pada stadia PL25 di media bersalinitas rendah tidak terpenuhi jika hanya mengandalkan pakan alami sehingga perlu ditunjang dari pakan buatan dengankandungan nutrisi yang dapat mendukung pertumbuhan dan kelangsungan hidup yang lebih maksimal. Kata kunci: salinitas, pakan alami, pakan buatan, udang vaname.

Feeding rate of freshwater eel Anguilla bicolor bicolor: at the body weight of 1–2 g Latifa Fekri; Ridwan Affandi; Tatag Budiardi
Jurnal Akuakultur Indonesia Vol. 13 No. 1 (2014): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT The aim of the research was to determine feed requirement for the maintenance, optimum, and maximum growth of freshwater eel (Anguilla bicolor bicolor) seed (1–2 g body weight). Feed used in this research was KRA feed with 46% protein content, with different feeding level (FR) at 0%, 5%, 10%, and 15% of fish biomass. The experiment was conducted in 30 days. Parameters measured were survival and specific growth (SGR). The results showed that survival of fish in all treatments were 100%, except in fish fed on 15% of biomass (only 96). Fish growth with feeding of 0%, 5%,10%, and 15%, were -1.06%; 0.42%; 0.73%; and 0.19%, respectively. Based on the analysis of the relationship between feeding level and growth, the feed requirement for maintenance, optimum, and maximum growth in 1–2 g freshwater eel seed were 3.3%; 7.0%; and 9.5% of the biomass, respectively. Keywords: eel seed, feed requirement, growth ABSTRAK Penelitian dilakukan dengan tujuan untuk mendapatkan kebutuhan pakan untuk maintenance, dan untuk pertumbuhan optimum serta maksimum benih ikan sidat (Anguilla bicolor bicolor) (bobot tubuh 1–2 g). Pakan yang digunakan pada penelitian ini adalah pakan KRA dengan kadar protein 46%, dengan tingkat pemberian pakan 0%, 5%, 10%, dan 15% dari bobot biomassa ikan. Pemeliharaan berlangsung selama 30 hari. Parameter yang diukur meliputi sintasan (STS) dan laju pertumbuhan spesifik (LPS). Hasil penelitian menunjukkan bahwa STS benih ikan sidat selama pemeliharaan, memiliki nilai yang baik (100%) kecuali pada pemberian pakan 15% (hanya 96%). Laju pertumbuhan benih ikan sidat selama pemeliharaan dengan pemberian pakan 0%, 5%, 10%, dan 15% berturut-turut adalah -1,06%; 0,42%; 0,73%; dan 0,19%. Berdasarkan analisis hubungan antara tingkat pemberian pakan dan laju pertumbuhan spesifik, maka kebutuhan pakan maintenance, pertumbuhan optimum dan maksimum benih ikan sidat berukuran 1–2 g berturut-turut adalah 3,3%; 7%; dan 9,5% dari biomassa. Kata kunci: benih ikan sidat, kebutuhan pakan, pertumbuhan

Fish oil supplementation in commercial diet on growth of Anguilla bicolor bicolor Retno Cahya Mukti; Nur Bambang Priyo Utomo; Ridwan Affandi
Jurnal Akuakultur Indonesia Vol. 13 No. 1 (2014): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT This study was aimed to determine the effect of fish oil addition on growth performance and fatty acid composition of eel Anguilla bicolor bicolor. Freswater eel at an initial body weight of 9.90± 0.05 g were maintained in aquarium with volume of 120 L at stocking density of 1 g/L for 40 days. This research applied complete randomized design with four treatments addition of fish oil, i.e. 0%, 5%, 10%, and 15%. All treatments were carried out in triplicate. Feed given as much as 3% of the fish biomass a day for four times at 06:00, 11:00, 16:00, and 21:00. The results showed that the addition of fish oil in the diet have different effects (P<0.05) on specific growth (0.88–1.36%), feed efficiency (30.18–48.53%), protein retention (14.57–20.24%), fat retention (16.77–52.49%), energy retention (12.38–20.20%), and hepatosomatic index (1.72–2.72%) whereas the survival showed no difference (P>0.05) at 100%. In the fatty acid composition total of unsaturated fatty acid composition was 30.91–40.95%, n-3 fatty acids was 6.10–8.19%, and n-6 fatty acids were 6.18–8.19%. In conclusion, the addition of fish oil in the diet of freshwater eel Anguilla bicolor bicolor can be done up to 5% (13% fat content of diet). Keywords: Anguilla bicolor bicolor, fish oil, growth performance, fatty acid composition ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh penambahan minyak ikan terhadap kinerja pertumbuhan dan komposisi asam lemak ikan sidat Anguilla bicolor bicolor. Ikan sidat dengan bobot 9,90±0,05 g dipelihara dalam akuarium dengan volume 120 L pada padat tebar 1 g/L selama 40 hari. Penelitian ini menggunakan rancangan acak lengkap terdiri atas empat perlakuan penambahan minyak ikan pada pakan sebesar 0%, 5%, 15%, dan 15%. Semua perlakuan terdiri atas tiga ulangan. Pakan diberikan sebanyak 3% dari biomassa ikan dan diberikan sebanyak empat kali sehari yaitu pukul 06.00, 11.00, 16.00 dan 21.00. Hasil penelitian menunjukkan bahwa penambahan minyak ikan dalam pakan memberikan pengaruh yang berbeda (P<0,05) terhadap spesific growth rate (0,88– 1,36%), efisiensi pakan (30,18–48,53%), retensi protein (14,57–20,24%), retensi lemak (16,77–52,49%), retensi energi (12,38–20,10%), dan indeks hepatosomatik (1,72–2,72%). Sintasan tidak menunjukkan adanya perbedaan (P>0,05) yaitu 100%. Pada komposisi asam lemak dihasilkan total komposisi asam lemak tidak jenuh 30,91– 40,95%, asam lemak n-3 6,10–8,19%, dan asam lemak n-6 6,18–8,19%. Dengan demikian, dapat disimpulkan bahwa penambahan minyak ikan dalam pakan ikan sidat Anguilla bicolor bicolor dapat dilakukan sampai dengan 5% (kadar lemak pakan 13%). Kata kunci: Anguilla bicolor bicolor, minyak ikan, kinerja pertumbuhan, komposisi asam lemak

Growth of off-flavours-caused phytoplankton in milkfish culture fertilized with different N:P Rahmadi Azis; Ridwan Affandi; Kukuh Nirmala; Triheru Prihadi
Jurnal Akuakultur Indonesia Vol. 14 No. 1 (2015): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT Milkfish culture in ponds currently use inorganic fertilizers for growing phytoplankton. Giving of urea and SP (superphosphate) too much in the pond environment will cause eutrophication and often cause fish smell of mud (off-flavours). Off-flavours in fish is caused by two chemical compounds those are geosmin and 2-methylisoborneol (MIB). Research was performed to evaluate the growth of off-flavours-caused phytoplankton in milkfish culture fertilized by different N:P. This study used nine ponds. Ponds are used for fish rearing area of 600 m2. Fish reared in ponds at the density of 1 fish/m2 for 90 days. The study were showed that types of phytoplankton obtained were the phylum Chlorophyta, Cyanophyta, Bacillariophyta, Dinoflagellate, Glaocophyta, and Euglenophyta. Percentage abundance of phytoplankton that produced geosmin and MIB (Cyanophyta) in each treatment was less than 50% of the percentage of total phytoplankton. Organoleptic scores showed that the treatment pond G (N:P ratio 4) score of 7 (not fresh, no off-flavours). Organoleptic scores of treatments with N:P ratio 5, 15 and 30 in pond A (freshwater pond) and pond B (brackish water pond) were 8 (fresh, no off-flavours). Keywords: extensive pond-culture, phytoplankton, N:P ratio, organoleptic ABSTRAK Budidaya bandeng di tambak saat ini menggunakan pupuk anorganik untuk menumbuhkan fitoplankton. Pemberian pupuk urea dan SP (superphosphate) yang berlebihan pada lingkungan budidaya akan menyebabkan kondisi perairan tersebut menjadi sangat subur dan sering menyebabkan ikan bau lumpur off-flavours. Bau lumpur di ikan disebabkan oleh dua senyawa kimia yaitu geosmin dan 2-methylisoborneol (MIB). Penelitian dilakukan untuk menguji pertumbuhan fitoplankton penyebab bau lumpur pada tambak ikan bandeng dipupuk dengan N:P berbeda. Penelitian ini menggunakan sembilan petak tambak. Tambak yang digunakan berukuran 600 m2. Ikan ditebar di tambak dengan kepadatan 1 ikan/m2 dan dipelihara selama 90 hari. Hasil penelitian menunjukkan fitoplankton yang didapatkan antara lain berasal dari filum Chlorophyta, Cyanophyta, Bacillariophyta, Dinoflagellata, Glaocophyta, dan Euglenophyta. Kelimpahan fitoplankton Cyanophyta lebih kecil dibandingkan dengan fitoplankton bukan Cyanophyta yaitu di bawah 50%. Skor organoleptik perlakuan tambak G (rasio N:P 4) yaitu 7 (kurang segar, tidak bau lumpur). Skor organoleptik perlakuan rasio N:P 5, 15, dan 30 di tambak A (tambak air tawar) dan tambak B (tambak air payau) adalah 8 (segar, tidak bau lumpur). Kata kunci: budidaya kolam ekstensif, fitoplankton, rasio N:P, organoleptik

Optimum salinity for growth of mangrove crab Scylla serrata seed in recirculation systems Yuni Puji Hastuti; Ridwan Affandi; Mafatih Devi Safrina; Kurnia Faturrohman; Wildan Nurussalam
Jurnal Akuakultur Indonesia Vol. 14 No. 1 (2015): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT One of the abiotic factors that affects the growth and the survival of crabs is salinity. The optimum salinity media will give maximum impact on mangrove crab Scylla serrata due to the osmoregulation process. This study aimed to examine the effect of salinity on the survival rate (SR) and spesific growth rate (SGR) of mangrove crab through the reaction of physiological condition. The treatments were rearing mangrove crab at the salinity medium of 15 ppt (A), 20 ppt (B), 25 ppt (C), and 30 ppt (D). Result showed that different salinity performed a significant effect (P<0.05) on the survival rate and specific growth rate of the crabs. The low level of stress, shown by the high value of total hemocyte and the low osmotic pressure, has made salinity of 25 ppt was the optimum condition for the mangrove crab rearing. Keywords: salinity, survival, specific growth rate, mangrove crab ABSTRAK Salah satu faktor abiotik yang memengaruhi pertumbuhan dan kelangsungan hidup kepiting adalah salinitas. Salinitas media optimum akan memberikan efek yang maksimal pada kepiting bakau Scylla serrata sehubungan dengan proses osmoregulasi tubuhnya. Penelitian ini bertujuan untuk menguji pengaruh salinitas pada kelangsungan hidup dan laju pertumbuhan spesifik kepiting bakau melalui reaksi kondisi fisiologis. Penelitian ini terdiri atas perlakuan salinitas media 15 ppt (A), 20 ppt (B), 25 ppt (C), dan 30 ppt (D). Hasil penelitian menunjukkan bahwa perbedaan salinitas media pemeliharaan kepiting bakau memberikan perbedaan nyata (P<0,05) pada kelangsungan hidup dan laju pertumbuhan spesifik kepiting bakau. Rendahnya tingkat stres pada salinitas 25 ppt dijelaskan dengan tingginya jumlah total hemosit dan rendahnya tekanan osmotik sehingga salinitas 25 ppt merupakan kondisi optimum bagi pemeliharaan kepiting bakau. Keywords: salinitas, kelangsungan hidup, laju pertumbuhan spesifik, kepiting bakau

Penentuan pH optimum untuk pertumbuhan kepiting bakau Scylla serrata dalam wadah terkontrol Yuni Puji Hastuti; Horas Nadeak; Ridwan Affandi; Kurnia Faturrohman
Jurnal Akuakultur Indonesia Vol. 15 No. 2 (2016): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT One of the abiotic factors that affects the growth and the survival of crabs is pH. The optimum pH media will give maximum impact on mangrove crabs because it is related with the osmoregulation process. This study aimed to examine the effect of pH on the survival rate (SR) and specific growth rate (SGR) of mangrove crab Scylla serrata through the reaction of physiological condition. This study consisted of the treatments with the pH medium 5 (A), pH medium 6 (B), pH medium 7 (C), and pH medium 8 (D). The crab’s maintenance in different pH gave a significant effect (P<0.05) on the survival rate of the crabs. The pH treatments also gave a significant effect (P<0.05) on the SGR of the crabs. The low level of crab stress at pH 7 was described by the total value of high hemocyte and the high osmotic load so that the pH 7 was the optimum condition for the crabs. Keywords: pH, survival, specific growth rate, mangrove crabs ABSTRAK Salah satu faktor abiotik yang mempengaruhi pertumbuhan dan kelangsungan hidup kepiting adalah pH. Media pH optimum akan memberikan dampak maksimum pada kepiting bakau karena terkait dengan proses osmoregulasi. Penelitian ini bertujuan untuk menguji pengaruh pH pada tingkat kelangsungan hidup (SR) dan laju pertumbuhan spesifik (SGR) kepiting mangrove Scylla serrata melalui reaksi kondisi fisiologis. Penelitian ini terdiri atas perlakuan dengan media pH 5 (A), sedang pH 6 (B), sedang pH 7 (C), dan menengah pH 8 (D). Pemeliharaan kepiting di pH yang berbeda memberikan pengaruh yang signifikan (P<0,05) pada tingkat kelangsungan hidup kepiting. Perlakuan pH juga memberikan efek yang signifikan (P<0,05) pada SGR dari kepiting. Rendahnya tingkat stres kepiting pada pH 7 digambarkan oleh nilai total hemosit tinggi dan beban osmotik tinggi sehingga pH 7 adalah kondisi optimum untuk kepiting. Kata kunci: pH, kelangsungan hidup, laju pertumbuhan spesifik, kepiting mangrove

Genetic variability and performance of Asian swamp eel Monopterus albus (Zuiew, 1793) from West Java cultured in saline water medium Dinar Tri Soelistyowati; Ahmad Fahrul Syarif; Ridwan Affandi; Dendi Hidayatullah
Jurnal Akuakultur Indonesia Vol. 16 No. 1 (2017): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT Asian swamp eel Monopterus albus (Zuiew, 1793) is freshwater fish species which is prospective for domestic and export markets. The production is limited depend on the catches of natural population. The cultivation of eel has been carried out to increase the production for sustainability. This study was conducted to evaluate the genetic variability and performance of Asian swamp eel from West Java and its potential cultivation in water based media with salinity. Three populations from West Java were collected of different altitudes from Sukabumi (673 m asl), Cianjur (429 m asl), Karawang (51 m asl) sized 19–26.5 cm and weighed 4.95–11.4 g. The cultivation was performed during 30 days in water media without substrate at salinity 6 ppt with density of 1 kg/m2 and maintenance at container 50×30×30 cm completed with shelter pipe of ¾ inches diameter and 20 cm length, height of water 10 cm and water exchange 100% every day, fed at satiation using Tubificidae once a day. Genetically, all of the populations showed low heterozygosity at 1.19–1.23% and genetic distance 0.01–0.04. Asian swamp eel adapted better at water salinity 6 ppt which indicated by low mesure of osmotic gradient and blood glucose. Asian swamp eel from Karawang showed superior at survival rate (90%) and daily growth rate (1.42/day). Keywords: Asian swamp eel, Monopterus albus, cultivation, genetic variability, salinity ABSTRAK Belut sawah Monopterus albus (Zuiew, 1793) merupakan komoditas ikan air tawar potensial di pasar domestik maupun ekspor, namun produksinya masih mengandalkan hasil tangkapan dari alam karena budidaya belum berkembang. Penelitian ini bertujuan untuk mengevaluasi keragaman genetik dan keragaan belut sawah asal Jawa Barat dan potensinya untuk dikembangkan dengan teknik budidaya di air bersalinitas tanpa lumpur. Tiga populasi belut sawah dikoleksi dari lokasi di Jawa Barat dengan ketinggian berbeda yaitu Sukabumi (673 m dpl), Cianjur (429 m dpl), Karawang (51 m dpl). Sumber genetik belut berukuran 19–26,5 cm dan bobot berkisar 4,95–11,4 g dipelihara selama 30 hari dalam media air tanpa substrat bersalinitas 6 ppt. Wadah pemeliharaan berukuran 50×30×30 cm dilengkapi shelter pipa paralon diameter ¾ inci dan panjang 20 cm serta ketinggian air 10 cm. Padat penebaran ikan 1 kg/m2 (20 ekor/wadah), serta pergantian air 100% dilakukan setiap hari dan pemberian pakan berupa Tubificidae secara at satiation satu kali sehari. Secara genetik ketiga populasi menunjukkan tingkat heterosigositas yang rendah yaitu berkisar 0,19–0,23 % dan jarak genetik 0,01–0,04. Belut sawah menunjukkan respons adaptasi yang baik dalam media air tanpa substrat pada salinitas 6 ppt berdasarkan indikator beban osmotik dan kadar glukosa yang rendah. Belut sawah asal Karawang unggul pada laju pertumbuhan harian (1,42/hari) dan kelangsungan hidup (90 %). Kata kunci: belut sawah Monopterus albus, budidaya, keragaman genetik, salinitas

Survival and growth responses of snakehead fish Channa striata Bloch. juvenile in aerated and unaerated acid sulfate water , Purnamawati; Daniel Djokosetiyanto; Kukuh Nirmala; Enang Harris Surawidjaja; Ridwan Affandi
Jurnal Akuakultur Indonesia Vol. 16 No. 1 (2017): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

ABSTRACT The aim of the research was to analyze survival rate, specific growth rate, albumin, and feed efficiency and physiological (blood glucose, cortisol, dan haemoglobin) responses of snake head fish juvenil that reared at aerated and unaerated of tidal land water have been conducted in the laboratory. Experiments using completely randomized design with aerated and unaerated as a treatment, and each treatment has twelve replications. The snakehead fish juvenil wich length 2.4±0.2 cm and weight of 0.21±0.05 g reared in the aquarium that are size 30×25×35 cm (water volume 25 L) with a stocking density 2 juvenile/L, for 40 days. The fishes were fed with commercial feed with protein content about 40%, feeding two times a day (morning and afternoon) were at satiation. Replacement of water done every two days about 10% of the total water volume in the aquarium. The results showed that unaerated median significantly affected to biometric and physiological response of juvenile of snake head fish. The media un-aerated gives the best results shown by the higher value of survival (92%), specific growth rate (6.73%/ day), feed efficiency (78.22%), protein retention (41.91%), energy retention (30.81%) value of albumin (6.60 g/100 mL) and the haemoglobin (5.58 g/dL), and have the lowest value of cortisol (21.49 ng/L) and blood glucose (43.36 mg/100 mL). Keywords: acid sulfate water, growth rate, aeration, Channa striata ABSTRAK Penelitian ini bertujuan untuk menganalisis respons kelangsungan hidup, pertumbuhan spesifik, albumin, dan efisiensi pakan dan fisiologis (kortisol, glukosa darah, dan hemoglobin) juvenil ikan gabus yang dipelihara dengan dan tanpa aerasi pada media air rawa pasang surut. Penelitian menggunakan rancangan acak lengkap dengan aerasi dan tanpa aerasi sebagai perlakuan, dan masing-masing perlakuan memiliki 12 ulangan. Juvenil ikan gabus berukuran panjang 2,4±0,3 cm dan bobot 0,21±0,03 g dipelihara dalam akuarium 30×25×35 cm (volume 25 L) dengan padat tebar 2 ekor/L, selama 40 hari. Ikan diberi pakan berupa pakan komersial dengan kadar protein ±40%, pemberian pakan dua kali sehari (pagi dan sore) at satiation. Penggantian air dan penyiponan dilakukan dua hari sekali sebanyak 10% dari volume total dalam akuarium. Hasil penelitian menunjukkan bahwa perlakuan tanpa aerasi berpengaruh nyata terhadap respons biometrik dan fisiologis juvenil ikan gabus. Media tanpa aerasi memberikan hasil yang lebih baik ditunjukkan oleh kelangsungan hidup (92%), laju pertumbuhan spesifik (6,73%/ hari), efisiensi pakan (78,22%), retensi protein (41,91%), retensi energi (30,81%), kadar albumin (6,60 g/100 mL), dan hemoglobin (5,85 g/dL) yang lebih tinggi, sedangkan kadar kortisol (219 ng/L) dan glukosa darah (43,36 mg/100 mL) yang terendah. Kata kunci: media sulfat masam, pertumbuhan, aerasi, Channa striata

Co-Authors , Purnamawati , Robin , Suharsono . Sulistiono . Syafiuddin Abdul Rahman Singkam Agoes Mardiono Jacoeb Agus Alim Hakim Agus Oman Sudrajat Agus Salim Ahmad Fachrudin Ahmad Fahrul Syarif Akhmad Firmansyah Ali Mashar Am Azbas Taurusman Andi Chadijah Andi Gunawan Antonius Suwanto dan Meity S. Sinaga . Budi Tjahjono Andi Khaeruni R Arul Tabah Prastomo Asbar Laga, Asbar Azam B. Zaidy Bambang Kiranadi Bambang Priyo Utomo Benny Heltonika Cecep Kusmana Chair Rani Charles Parningotan Haratua Simanjuntak Daniel Djokosetiyanto Daniel Djokosetiyanto Daniel Djokosetiyanto Daniel R Monintja Daniel R Monintja DEDI JUSADI Dedi Soedarma Dedi Soedharma DEDI SOEDHARMA Dedy Soedharma Dendi Hidayatullah Desrita Desrita Didik Wahju Hendro Tjahjo Dietriech Geoffrey Bengen Dinar Tri Soelistyowati Djadja S . Sjafei Djadja Subardja Sjafei Djamar Tumpal F. Lumbanbatu Dudi Muhammad Wildan Eddy Supriyono Efriyeldi, Efriyeldi Elen Selviana Ena Sutisna Enang Harris Enang Harris Surawidjaja Enang Harris Surawidjaja Endah Purnamawati Epa Paujiah, Epa Etty Riani Farida Nur Rachmawati Ferdinand Hukama Taqwa Firat Meiyasa Gadis Sri Haryani Gadis Sri Haryani Gadis Sri Haryani Gatot Yulianto Gema Wahyu Dewantoro Gema Wahyu Dewantoro, Gema Wahyu Hardono Manan Harpasis S. Sanusi Harpasis S. Sanusi Haryono . Haryono Haryono Haryono Haryono Haryono Haryono Hayono, Hayono Hayono, Hayono Henni Syawal Hesti Lukas, Ade Yulita Horas Nadeak Husain Latuconsina Ilham Zulfahmi Iman Rusmana iman supriatna Indrayani Indrayani ING MOKOGINTA Irzal Effendi Isdradjad Setyobudiandi Ismudi Muchsin Ismudi Muchsin Jack Mamangke Jimmi . Kadarwan Soewardi Kardiyo Praptokardiyo Kasful Anwar Kukuh Nirmala Kurnia Faturrohman Kurniawati H Ekosafitri La Eddy Latifa Fekri Lella Herdiana Lenny S Syafei M F Rahardjo M Mukhlis Kamal M. Apuk Ismane M. F. Rahardjo M. F. Rahardjo, M. F. M. Mukhlis Kamal M. Zairin Junior Mafatih Devi Safrina Mala Nurilmala Mennofatria Boer Menofatria Boer Mia Setiawati Mohammad Kamal Mohammad Mukhlis Kamal MOZES R. TOELIHERE MOZES TOELIHERE Muchammad Sri Saeni Mufti Murhum MUHAMMAD AGUS SUPRAYUDI Muhammad Fajar Rahardjo Muhammad Jamal Muhammad Mukhlis Kamal Muhammad Mukhlis Kamal Muhammad Mukhlis Kamal Muhammad Mukhlis Kamal, Muhammad Mukhlis MUHAMMAD ZAIRIN Jr. Mukhlis Kamal Mulyadi . Mulyadi . Mulyadi Mulyadi Mulyadi Mulyadi Murniarti Brojo Nanik Mustikaning Tyas Nastiti Kusumorini NASTITI KUSUMORINI Nidya Kartini Nidya KARTINI Norman Razieb Azwar Nur Bambang Priyo Utomo Nur Bambang Priyo Utomo Nur Bambang Priyo Utomo Nurfitri Triramdani Nurhidayat Nurhidayat Nurlisa Butet, Nurlisa Odang Carman Odilia Rovara Priyo Handoyo Wicaksono Radhita Millaty Rahadjo, M F Rahadjo, M F Rahardjo, MF. Rahardjo, MF. Rahmadi Azis Retno Cahya Mukti Rita Rachmawati Rizky Regina Kawirian Rizsa Mustika Pertiwi Ronny I. Wahju Roza Elvyra SATA YOSHIDA SRIE RAHAYU Siska Tridesianti Siska Tridesianti Siti Sofiah Sri Wahyuni Srihadi Agungpriyono Sukenda Sukenda Sulistiono Sulistiono Sulistiono Surachman Suwardi Suradi Suradi Suradi Wijaya Saputra Sutrisno Sukimin Sutrisno Sukimin Syamsul Bahri Agus, Syamsul Bahri TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Tatag Budiardi TATI NURHAYATI Tezza Fauzan Thomas Nugroho Tjahjo Winanto Tjahjo Winanto, Tjahjo Tri Prartono Triheru Prihadi Triyanto Triyanto Triyanto Wahyu Budi Kuntari Wahyuni, Sri Wasmen Manalu Wildan Nurusallam Wildan Nurussalam, Wildan Y. Hadiroseyani Yanti Sinaga Yonvitner - Yulfiperius, Yulfiperius Yuli Siti Fatma Yulia Sistina Yulvian Sani Yuni Puji Hastuti YUSMINAH HALA Yusnarti Yus

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