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All Journal Jurnal Akuakultur Indonesia Jurnal Akuakultur Rawa Indonesia Zuriat BERITA BIOLOGI JURNAL BIOLOGI INDONESIA LIMNOTEK - Perairan Darat Tropis di Indonesia Indonesian Aquaculture Journal Jurnal Riset Akuakultur Media Akuakultur EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup

Jojo Subagja

Balai Riset Perikanan Budidaya Air Tawar dan Penyuluhan Perikanan

Author-ID : 386892

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Mathematics

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PERTUMBNHAN IKAN TAMBRA (TOR TAMBROIDES) DAN KANCERA (TOR SORO) PADA PROSES DOMESTIKASI DENGAN JENIS PAKAN YANG BERBEDA Haryono, Haryono; Subagja, Jojo
JURNAL BIOLOGI INDONESIA Vol 4, No 3 (2007): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i3.3261

ABSTRACTThe Growth of Tarnbra fish (Tor tambroides) and Kancera fish (Tor soro) inDomestication Process with Different Fed. The experiment was conducted toevaluate the growth of two mahseer (tambra and kancera) from Muller Mountainareas in Central Kalimantan which were different fed in aquarium i.e: A. Frozenworm, B. Fish feed, and C. shrimp feed. The experiment follows Randomized CompleteDesign Methods. The replication of treatment is three times, each aquarium filled with1 individual as treatment and replication. They were fed daily for 100 days andmeasured each 20 days. The results showed shrimp feed gave growth fastest (0.460gldays), and the lowest is 0.170 gldays; the growth oftambra fish faster than kancerafish. The water quality of aquarium is suitable for growing these fish.Kata kunci: Growth, Tambra fish (Tor tambroides), Kancera fish (Tor soro), Fed

REKAYASA LINGKUNGAN PEMELIHARAAN BENIH IKAN BAUNG (Hemibagrus nemurus ) UNTUK MENINGKATKAN PERTUMBUHAN DAN SINTASAN Kusdiarti Kusdiarti; Jojo Subagja; Otong Zaenal Arifin; RR Sri Pudji Sinarni Dewi
Jurnal Akuakultur Rawa Indonesia Vol 8, No 2 (2020): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jari.v8i2.12759

Hemibagrus nemurus is a local commodity fish that is especially favored by people in South Sumatra, Java and Kalimantan. The low survival rate of H. nemurus in the seed rearing phase is one of the obstacles in developing its cultivation. In this study an environmental modification was carried out in the rearing of H. nemurus seed containers through the addition of aeration and recirculation to increase the growth and survival. The study was conducted at a hatchery of farmers in the Kemang area, West Java. The initial length of seed was 10.1 ± 0.17 mm. The container size used was 300 liters of fiberglass. Stocking density was 10 fish / L. The maintenance period was 1 month. The treatments tested were rearing of seeds in an aquarium using A) Aeration system, B) Recirculation System, and C) Aeration + Recirculation System. The results showed that the use of rearing containers equipped with Aeration + Recirculation system resulted in better growth (29.4 mm) and survival (24.5%) compared to rearing in containers with only aeration or recirculation systems. Key words : Aeration,Growth, Hemibagrus nemurus, Recirculation, Survival rate

PENGARUH PERBEDAAN PADAT TEBAR LARVA TERHADAP PERTUMBUHAN DAN SINTASAN PADA IKAN UCENG (Nemacheilus fasciatus) Jojo Subagja; Vitas Atmadi Prakoso; Otong Zenal Arifin; Anang Hari Kristanto
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.3561

Proper stocking density on larval rearing of barred loach (Nemacheilus fasciatus Valenciennes, 1846) is very important in terms of obtaining the best growth and survival rate. This study was aimed to observe the growth and survival rate of barred loach subjected to different larval stocking density. Fish larvae were obtained by artificial spawning from in aquarium. Larvae were stocked on aquariums (50 × 40 × 30 cm) with three stocking density treatments (5, 10, and 15 individuals/L) and three replications. The experimental fish larvae were fed by Artemia and commercial feed (crude protein content: 30%) and feeding frequency twice per day (ad libitum). The length and weight were reassured every 10 days during 70 days of rearing period. Temperature, pH, and dissolved oxygen were measured at each treatment. Data obtained from measurements were analysed to assess the length gain, weight gain, specific growth rate (SGR), biomass gain, and survival rate. The results showed length gain of 3.35 ± 0.01, 2.94 ± 0.10, and 2.82 ± 0.15 cm and weight gain of 0.573 ± 0.023, 0.436 ± 0.018, and 0.417 ± 0.043 g in larval stocking density of 5, 10 and 15 individuals/L, respectively. Specific growth rates and biomass growth were of 6.22 ± 0.41, 5.93 ± 0.21, and 5.68 ± 0.41 %/day and 94.04 ± 5.39, 146.80 ± 3.81, and 167.24 ± 17.48 g in larval stocking density of 5, 10 and 15 individuals/L, respectively. Meanwhile, the survival rates obtained in this study were 89.13 ± 7.25, 93.13 ± 5.13, and 76.50 ± 3.54 % in larval stocking density of 5, 10 and 15 individuals/L, respectively. Increased stocking density has a negative impact on the growth and survival rate of barred loach.

BIOLOGI REPRODUKSI DAN TINGKAT KEBERHASILAN PEMIJAHAN IKAN BAUNG Hemibagrus nemurus (Valenciennes, 1840) POPULASI CIRATA DENGAN INKUBASI SUHU BERBEDA Deni Radona; Jojo Subagja; Vitas Atmadi Prakoso; Irin Iriana Kusmini; Anang Hari Kristanto
Jurnal Riset Akuakultur Vol 13, No 2 (2018): (Juni, 2018)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Ikan baung merupakan salah satu komoditas populer di Indonesia. Dalam pengembangan budidayanya masih diperlukan input teknologi terutama pada proses pembenihan. Penelitian ini bertujuan untuk mengevaluasi karakter biologi reproduksi dan keberhasilannya dalam proses pemijahan pada ikan baung populasi Cirata yang diinkubasi pada suhu 23°C-24°C, 25°C-26°C, 27°C-28°C, dan 29°C-30°C. Inkubasi induk dilakukan pada styrofoam berukuran 45 cm x 35 cm x 25 cm dengan ketebalan 3 cm. Setiap styrofoam diisi satu ekor induk yang matang gonad. Seleksi tingkat kematangan gonad dilakukan secara kanulasi dan induksi hormon menggunakan LHRH analog (0,6 mL/kg). Penyuntikan dilakukan dua kali dengan selang waktu enam jam. Styrofoam diisi air dengan ketinggian 20 cm, dilengkapi tutup pada bagian atas, water heater, dan sistem aerasi. Inkubasi suhu dilakukan secara eksperimental menggunakan rancangan acak lengkap dengan empat perlakuan suhu dan masing-masing perlakuan diulang sebanyak tiga kali. Hasil penelitian menunjukkan suhu optimal inkubasi pada induk yaitu 27°C-28°C dengan waktu laten 8 jam 35 menit, dan derajat ovulasi 100%. Secara statistik inkubasi induk pada suhu 27°C-28°C menunjukkan nilai karakter biologi reproduksi yang berbeda nyata (P<0,05) dibandingkan dengan inkubasi suhu 23°C-24°C dan 25°C-26°C. Nilai biologi reproduksi yang dihasilkan pada perlakuan terbaik tersebut adalah indeks kematangan gonad 8,6 ± 0,5%; fekunditas 23.909 ± 1.473 butir per ekor; derajat pembuahan 85,5 ± 5,5%; derajat penetasan 69,9 ± 5,0%; dan sintasan 72,3 ± 5,8%. Pada inkubasi suhu 27C°-28°C, telur terdistribusi dengan diameter telur rata-rata sebesar 1,5 mm.Asian redtail catfish is one of the most popular fish commodities in Indonesia. However, improvements in its aquaculture technology are still needed, especially in the breeding process. This study was aimed to evaluate the characters of reproductive biology and level of spawning on Asian redtail catfish from Cirata population incubated at different temperature settings of 23°C-24°C, 25°C-26°C, 27°C-28°C, and 29°C-30°C. Broodstock incubation was conducted in styrofoam boxes (sized 45 cm x 35 cm x 25 cm) with a wall thickness of 3 cm. One mature broodstock was placed inside each Styrofoam. Each styrofoam box was previously filled with freshwater of 20 cm deep, equipped with a lid on top, a water heater, and an aeration system. The gonad maturity stage of each broodstock was determined using cannulation, whilst the hormone induction used LHRH hormone analog (0.6 mL/kg). The injection was performed twice within six hours interval. The incubation was arranged in a completely randomized design (CRD) with four temperature treatments with three replicates. The results showed that the optimal incubation temperature for the broodstock was 27°C-28°C with the latent time ovulation of 8 hours 35 minutes and an ovulation rate of 100%. Statistically, the incubation of broodstock at 27°C-28°C showed a significant difference on the reproductive biological character value (P<0.05) compared to temperature ranges at 23°C-24°C and 25°C-26°C. The reproductive biology parameters generated were gonadosomatic index of 8.6 ± 0.5%; fecundity of 23,909 ± 1,473 egg per individual; fertilization rate of 85.5 ± 5.5%; hatching rate of 69.9 ± 5.0%; and survival rate of 72.3 ± 5.8%. At the incubation temperature of 27°C-28°C, the egg was distributed with an average egg diameter of 1.5 mm.

PERFORMA PEMIJAHAN IKAN BELIDA (Notopterus chitala) MELALUI INDUKSI HORMON HCG DAN LHRH Lies Setijaningsih; Jojo Subagja; Deni Radona; Brata Pantjara; Anang Hari Kristanto; Yohanna Retnaning Widyastuti
Jurnal Riset Akuakultur Vol 13, No 2 (2018): (Juni, 2018)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Permintaan ikan belida cukup tinggi untuk memenuhi kebutuhan konsumsi dan bahan baku olahan makanan yang masih mengandalkan tangkapan dari alam. Tingginya eksploitasi mengakibatkan populasi ikan dari tahun ke tahun semakin berkurang dan terancam punah. Teknologi pembenihan ikan belida dengan penggunaan hormon diduga dapat meningkatkan produksi larva untuk keperluan budidaya. Penelitian dilakukan untuk mengevaluasi performasi pemijahan ikan belida secara alami dan buatan melalui induksi hormon HCG dan LHRH analog. Pemijahan alami dan buatan dilakukan menggunakan induk betina sebanyak enam ekor dan jantan tiga ekor (rasio 2:1). Induk yang digunakan berukuran panjang 46 ± 5 cm dan bobot 2.209 ± 623 g. Pemijahan buatan dilakukan dengan induksi hormon HCG dosis 500 IU/kg dan LHRH analog dosis 0,5 mL/kg. Penyuntikan HCG dan LHRH diberikan dengan interval 24 jam. Hasil penelitian menunjukkan pada pemijahan buatan (induksi hormon) diperoleh induk yang memijah sebanyak dua ekor dengan nilai diameter telur (3,1 ± 0,3 mm); fekunditas (282-907 butir); derajat pembuahan (21%-40%); derajat penetasan (56%-75%); dan sintasan (30%-50%); sedangkan pada pemijahan alami diperoleh satu ekor induk yang memijah dengan nilai diameter telur (3,5 ± 0,3 mm); fekunditas (1.616 butir); dan derajat pembuahan (86,7%); selama tiga bulan pengamatan secara intensif dengan frekuensi pemijahan enam kali. Aplikasi teknologi pemijahan dengan menggunakan induksi hormon dapat menghasilkan produk larva pada ikan belida.The demand for fish consumption of Clown Knifefish is considerably high. However, the fish supply for consumption and processed food still relies on wild-caught. Such exploitation has decreased the population of Clown Knifefish to a point that it can become an endangered species. Efforts on the breeding technology of Clown Knifefish through natural and artificial propagation using of hormones have shown promising results. The current study was conducted to evaluate the performance of Clown Knifefish in natural and artificial spawning conditions using the induction of HCG hormone and LHRH analogues. The natural and artificial spawning treatments were conducted using six fish females and three fish males (a ratio of 2:1). The average Broodstocks’ size was 46 ± 5 cm in length and 2,209 ± 623 g in weight. The artificial spawning was conducted with HCG hormone induction (dose of 500 IU/kg body weight) and LHRH analogue (dose: 0.5 mL/kg). HCG and LHRH injections were given within 24 hours interval. The results showed that the artificial spawning (hormone induction) had successfully caused two broodstock to spawn producing eggs with the diameter of 3.1 ± 0.3 mm; fecundity of 282-907 eggs; fertilization rate of 21%-40%; hatching rate of 56%-75%; and survival rate of 30%-50%. In the natural spawning, one broodstock had spawned with the egg diameter of 3.5 ± 0.3 mm; fecundity of 1,616 eggs; and fertilization rate of 86.7%. This study concludes that spawning technology applications using hormonal induction can increase the production larvae of Clown Knifefish broodstock.

KERAGAAN BIOREPRODUKSI TIGA GENERASI IKAN TAMBAKAN (Helostoma temminckii Cuvier, 1829) Wahyulia Cahyanti; Jojo Subagja; Kusdiarti Kusdiarti; Deni Irawan; Otong Zenal Arifin
Media Akuakultur Vol 16, No 1 (2021): (Juni, 2021)
Publisher : Pusat Riset Perikanan

Ikan tambakan merupakan ikan lokal yang potensial menjadi ikan budidaya. Salah satu proses penting dalam budidaya adalah aspek reproduksi. Penelitian untuk mengetahui karakteristik bioreproduksi tiga generasi ikan tambakan hasil kegiatan domes‘tikasi di Balai Riset Perikanan Budidaya Air Tawar dan Penyuluhan Perikanan, Bogor. Pengujian dilakukan untuk mengetahui posisi gonad, fekunditas, derajat pembuahan, dan derajat penetasan ikan tambakan generasi yang berbeda. Hasil yang diperoleh menunjukkan posisi gonad vertikal mengarah ke tulang belakang, di bagian ujung melengkung ke arah depan dan gonad berada di belakang urogenital. Fekunditas telur/gram bobot ikan yang dihasilkan tidak berbeda antar generasi dengan jumlah berkisar antara 76 ± 13 sampai 83 ± 14 butir. Persentase telur terbuahi dan telur menetas antar generasi juga tidak berbeda, masing-masing berkisar antara antara 70,6 ± 16,05 sampai 92,9 ± 10,88%; dan 51,3 ± 16,64 sampai 74,3 ± 10,32%. Jumlah larva yang dihasilkan juga tidak berbeda nyata antar generasi, berurutan dari yang kecil ke besar G-0 (38,7 ± 10,72 butir/g bobot ikan), G-1 (45,3 ± 5,20 butir/g bobot ikan), dan G-2 (55,7 ± 7,75 butir/g bobot ikan). Program domestikasi ikan tambakan tidak mempengaruhi karakter reproduksi ikan antar generasi. Keragaman karakter reproduksi antar generasi masih tinggi. Pembentukan generasi selanjutnya perlu dipertahankan, sehingga dapat digunakan sebagai ikan budidaya baru.Kissing gourami is an Indonesian local fish species that has the potential to be developed as a farmed fish. However, the current domestication stage of the fish still requires further information regarding its bio reproduction. The research on determining the bioreproductive characteristics of three generations of kissing gourami has been carried out at the Research Institute of Freshwater Aquaculture and Fisheries Extensions, Bogor. This research aimed to determine the gonad position, gonad maturity index, and fecundity between the kissing gourami generations. The results showed that the gonads were positioned vertically towards the backbone, curved ends towards the front and located behind the urogenital. The fecundity of produced eggs/gram body weight of fish did not differ between generations and ranged between 76 ± 13–83 ± 14 eggs. The percentages of fertilized eggs and hatched eggs between generations did not differ and ranged between 70.6 ± 16.05–92.9 ± 10.88% and 51.3 ± 16.64–74.3 ± 10.32%, respectively. The number of produced larvae was also not significantly different between generations where G-0 has the lowest number (38.7 ± 10.72 eggs/g fish weight), followed by G-1 (45.3 ± 5.20 eggs/g fish weight) and G-2 has the highest number of produced larvae (55.7 ± 7.75 eggs/g fish weight). The aquaculture domestication program does not affect the reproductive character of fish between generations. The diversity of reproductive characters between generations is still high. The formation of the next generation needs to be maintained, so that it can be used as a new cultured fish.

A STUDY ON THE GROWTH AND PHYSIOLOGICAL RESPONSE OF JUVENILE TINFOIL BARB Barbonymus schwanenfeldii (Bleeker, 1854) UNDER THE INFLUENCE OF pH CHANGES Oktavia, Nia; Prakoso, Vitas Atmadi; Kamal, Mohammad Mukhlis; Arifin, Otong Zenal; Subagja, Jojo; Kurniawan, Kurniawan; Iswantari, Aliati; Kusmini, Irin Iriana; Irawan, Deni; Cahyanti, Wahyulia; Radona, Deni; Putri, Fera Permata; Bosman, Ofan; Wibowo, Arif; Kristanto, Anang Hari; Gustiano, Rudhy
Indonesian Aquaculture Journal Vol 19, No 1 (2024): (June, 2024)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.19.1.2024.35-44

Tinfoil barb Barbonymus schwanenfeldii is recognized as one of the potential aquaculture commodities in Indonesia. Nonetheless, lack of data on their environmental tolerance causing this issue to become essential to be investigated. The present study was carried out to assess the pH influence on growth and physiological response of juvenile tinfoil barb. Juvenile tinfoil barbs (TL: 5.5 ± 0.8 cm; BW: 2.4 ± 1.0 g) were treated with four pH level treatments (5, 6, 7, and 8) and three replications with the stocking density of 10 fish each aquarium. Fish were kept for 21 days and fed with commercial fish feed. In this study, pH 8 exposure resulted to lower growth of juvenile tinfoil barb compared to pH treatment 5 to 7 (p<0.05). In terms of survival rate, the results show significantly lower value at pH 8 treatment compared to those of pH 6 and 7 treatment (p<0.05), while it is not significantly different with pH 5 treatment (p>0.05). Additionally, this study found the highest value of glucose, cortisol, and aspartate aminotransferase (AST) on pH 8 treatment (p<0.05). On the other hand, pH 8 exposure led to the lowest creatinine, blood urea nitrogen (BUN), and ALP level (p<0.05). In conclusion, the optimal pH for juvenile tinfoil barb rearing ranged around 6-7.

FIRST GENERATION REPRODUCTIVE PERFORMANCE AND SECOND GENERATION LARVAL PRODUCTION ON THE DOMESTICATED TINFOIL BARB, Barbonymus schwanenfeldii (BLEEKER, 1854) Kusmini, Irin Iriana; Cahyanti, Wahyulia; Gustiano, Rudhy; Sundari, Sri; Iskandar, Andri; Radona, Deni; Kurniawan, Kurniawan; Prakoso, Vitas Atmadi; Putri, Fera Permata; Arifin, Otong Zenal; Subagja, Jojo; Kristanto, Anang Hari; Prihadi, Tri Heru; Mulyasari, Mulyasari; Yosmaniar, Yosmaniar; Subaryono, Subaryono
Indonesian Aquaculture Journal Vol 18, No 2 (2023): (December, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.2.2023.97-104

Tinfoil barb, Barbonymus schwanenfeldii (Bleeker, 1854), is a potential freshwater fish for Indonesian aquaculture. Before widely used, the candidate needs to be evaluated. This research aimed to evaluate the reproductive performance of the first generation (G1) and larval performance of the second generation (G2) of domesticated tinfoil barb. A total of 68 female and 24 male broodstocks were selected for the artificial breeding program. The gonadal maturity test was carried out by canulating the eggs every month. Before spawning, GnRHa hormone was injected into the dorsal area (0.5 mL/kg for female and 0.2 mL/kg for male). Fecundity, fertility rate, hatching rate, embryogenesis, and larvae ontogeny were recorded. The results showed that the first matured G1 males of tinfoil barb were at the standard length of 16.01 ± 1.18 cm, while females at 15.79 ± 1.23 cm. The mature broodstock indicated by the gonad maturity stage III and IV confirming higher estradiol concentration (above 400 pg mL-1). The fecundity of two mature broodstock-sized of 217.2 g and 197.3 g were 12,495 and 15,782 eggs, respectively. The spawning season of G1 tinfoil barb was in October and November (rainy seasons). The fertilized eggs latency time was 10 hours 44 minutes at 25°C and hatched after 23 hours 7 minutes. The fertility rate was 96.96 % and the hatching rate was 95.16 %. The survival rate of G2 normal larvae was 100 % at three days of the rearing period. The G2 larvae production in this experiment provides an excellent opportunity for fish diversification both for aquaculture and restocking.

RESILIENCE AND PHYSIOLOGICAL RESPONSES OF THE DOMESTICATED ASIAN REDTAIL CATFISH Hemibagrus nemurus TO HYPOXIA CONDITION Iswantari, Aliati; Kurniawan, Kurniawan; Prakoso, Vitas Atmadi; Radona, Deni; Irawan, Deni; Putri, Fera Permata; Cahyanti, Wahyulia; Arifin, Otong Zenal; Subagja, Jojo; Gustiano, Rudhy; Kusmini, Irin Iriana; Wibowo, Arif; Kristanto, Anang Hari
Indonesian Aquaculture Journal Vol 18, No 1 (2023): (June, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.1.2023.53-60

Hypoxia is one of the critical issues in aquaculture production systems as it can lead to physiological disturbances in cultured fish. This research aimed to evaluate the tolerance level and physiological responses of domesticated Asian redtail catfish Hemibagrus nemurus reared in various hypoxia conditions. A total of 12 fish/treatment were acclimated to gradually decreased dissolved oxygen treatments until fish experienced aquatic surface respiratory (ASR) and loss of equilibrium (LOE). Cortisol, haemoglobin, and glucose levels were detected in the blood plasma to evaluate the stress response of the fish to hypoxia. The result showed that ASR of H. nemurus was identified at 2.17 ± 0.14 ppm of dissolved oxygen (DO) concentration with the percentage of ASR was 77.67 ± 9.53%, while LOE critical of H. nemurus happened at 0.63 ± 0.15 ppm of DO where 55.56 ± 4.81% of the fish experienced LOE. There were significant differences in the values of physiological parameters (blood cortisol, haemoglobin, and glucose) between control and treatments as fish experienced LOE (P<0.05). In the present study, it was found that the Asian redtail catfish is classified as a hypoxia-sensitive fish group. Tehis finding is valuable information for the rearing and growing of the fish to provide an optimal DO concentration for their growth and survival.

EFFECTS OF DIFFERENT SALINITY LEVELS ON GROWTH AND PHYSIOLOGICAL RESPONSE OF Tor soro JUVENILE Leying, Ananda Ghifari; Prakoso, Vitas Atmadi; Arifin, Otong Zenal; Subagja, Jojo; Kurniawan, Kurniawan; Irawan, Deni; Cahyanti, Wahyulia; Putri, Fera Permata; Bosman, Ofan; Wibowo, Arif; Kristanto, Anang Hari; Pramono, Taufik Budhi
Indonesian Aquaculture Journal Vol 18, No 1 (2023): (June, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.1.2023.71-77

Tor soro is one of the most economically important native freshwater fish species in Indonesia. Nonetheless, the insufficient data regarding its salinity tolerance makes a thorough investigation of this issue imperative. This research was conducted to determine the effects of salinity on the growth and physiological response of Tor soro juveniles at optimum salinity levels. This study used Tor soro (total length: 5.0±0.08 cm; initial weight: 2.0 ± 0.06 g) with five salinity level treatments of, 0, 2, 4, 6, and 8 ppt, and the stocking density of 15 fish per aquarium (three replications). Fish were maintained for 30 days and fed with commercial aquafeed. In this study, the best growth was found in 2 ppt (length gain: 0.37 ± 0.05 cm; weight gain: 0.23 ± 0.01 g; specific growth rate in length: 1.38 ± 0.16 % day-1; specific growth rate in weight: 0.78 ± 0.05% day-1) which is significantly higher than 4, 6, and 8 ppt (p<0.05), but it is not significantly different from 0 ppt (p>0.05). The results of the physiological response showed that there were no significant stress responses in Tor soro juvenile for all salinity treatments (p>0.05). there was no effect of 2 ppt salinity on the growth parameters compared to controls, but salinities above ppt had a significant detrimental effect. Exposure to salinities did not have any stress effect as shown by physiological indicators.

Co-Authors Aliati Iswantari Anang Hari Kristanto Arif Wibowo Arifin, Otong Z Asih, Sidi Asih, Sidi Ath-Thar, M H F Bosman, Ofan Brata Pantjara Cahyanti, Wahyulia Deni Irawan Deni Irawan, Deni Deni Radona Deni Radona, Deni E Mulyati Effendi, E Mulyati Fera Permata Putri, Fera Permata Haryono Haryono Irin Iriana Kusmini Irin Iriana Kusmini, Irin Iriana Iskandar, Andri Kristanto, Anang H Kristanto, Anang Hari Kristanto, Anang Hari Kurniawan Kurniawan Kusdiarti Kusdiarti Kusmini, Irin I Leying, Ananda Ghifari Lies Setijaningsih Mohammad Mukhlis Kamal Mulyasari, Mulyasari Ningrum Suhenda Oktavia, Nia Otong Zaenal Arifin Otong Zenal Arifin Otong Zenal Arifin Prakoso, Vitas A Prakoso, Vitas Atmadi Prakoso, Vitas Atmadi Pratama, Ikhsan Prihadi, Tri H Reza Samsudin RR Sri Pudji Sinarni Dewi Rudhy Gustiano Saputra, Adang Subaryono Subaryono, Subaryono Sulhi, M. Sulhi, M. Sundari, Sri Taufik Budhi Pramono Tri Heru Prihadi Vitas Atmadi Prakoso Wahyulia Cahyanti Yohanna Retnaning Widyastuti Yosmaniar, Yosmaniar

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