Lusiana BR Ritonga
Politeknik Kelautan dan Perikanan Sidoarjo

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Natural Spawning Technique of Seahorse (Hippocampus comes) In Center For Marine Cultivation Fisheries of Lampung Lusiana BR Ritonga
Journal of Aquaculture Development and Environment Vol 4, No 2 (2021): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v4i2.4494

Abstract

Seahorse (Hippocampus comes) is a fishery commodity that has high economic value, both alive and dead. Seahorse seeds production was highly dependent on the availability of large and high quality gonad mature stock. One alternative that can be done to meet the needs of seeds by naturally spawning. The main parameters observed in this study were egg incubation, harvesting of juveniles, maintenance of juveniles, growth and survival of juveniles and maintenance of seeds. The water quality during the observation was still in the normal range, the temperature ranges between 29,6 0C, pH between 7,71-7,96 and dissolved oxygen between > 4,90-5,22 mg / l.
ARTIFICIAL SPAWNING OF PATIN SIAM CATFISH (Pangasianodon hypopthalamus) IN THE RESEARCH CENTER OF SUKAMANDI FISH BREEDING Lusiana BR Ritonga; M. hery Riyadi Alauddin; Fatin Safira
Journal of Aquaculture Development and Environment Vol 3, No 2 (2020): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v3i2.3193

Abstract

Ikan patin siam  (Pangasianodon hypopthalamus) merupakan salah satu komoditi ikan budidaya air tawar yang potensial untuk dikembangkan karena memiliki nilai ekonomis yang tinggi. Produksi benih ikan patin sangat tergantung dari ketersediaan stok induk matang gonad dalam jumlah banyak dan berkualitas. Salah satu alternatif yang dapat dilakukan untuk  memenuhi kebutuhan benih yaitu dengan melakukan pemijahan secara buatan dengan cara kawin suntik menggunakan hormon Human Chorionic Gonadotropin (HCG) dan ovaprim. Parameter utama yang diamati dalam penelitian ini adalah  fekunditas telur,  fertilisasi telur, hatching rate, growth rate dan survival rate. Kualitas air selama pengamatan masih berada pada batas kisaran normal yakni suhu berkisar antara 28–31.0C, pH antara 6-8 dan oksigen terlarut antara >3-4 mg/l.
SEAWEED TISSUE CULTURE TECHNIQUE IN BALAI PERIKANAN BUDIDAYA AIR PAYAU (BPBAP) SITUBONDO Lusiana BR Ritonga
Journal of Aquaculture Development and Environment Vol 5, No 1 (2022): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v5i1.5474

Abstract

Kappapyhcus alvarezii seaweed or more commonly known as Eucheuma cottonii is a potential commodity to be developed because seaweed has many benefits. The problem found in the development of seaweed in Indonesia is the number of pests and diseases in seaweed, especially ice-ice. In vitro culture techniques have become an alternative to help overcome the problems that are often faced in the provision of seeds through conventional means. There are 6 stages in seaweed tissue culture, namely broodstock acclimatization, callus induction, callus/micropropagule regeneration, micropropagule regeneration, plantlet acclimatization and seed propagation in the sea. During the observation, water quality was still in the normal range, namely temperatures ranging from 25-30 0C, pH between 8.16-8.35 and salinity 34-36 ppt. 
WATER QUALITY MANAGEMENT IN INTENSIVE AQUACULTURE OF VANNAMEI Shrimp (Litopenaeus vannamei) at PT. ANDULANG SHRIMP FARM Lusiana BR Ritonga
Journal of Aquaculture Development and Environment Vol 4, No 1 (2021): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v4i1.3739

Abstract

Vaname shrimp (Litopenaeus vannamei) is one of the commodities that is very promising for aquaculture and is a prima donna because of the high international market demand so that vaname shrimp production needs to be increased. Increasing shrimp production can be done with a high stocking density system. However, one of the drawbacks of this system is that it can reduce water quality because this system requires high feeding. Declining water quality will cause stress to the shrimps and cause diseases that cause failure in shrimp enlargement, it is necessary to manage water quality properly and appropriately. The main parameters observed in this study were stocking density, feed management and water quality monitoring. Water quality during the observation is still in the normal range of brightness, 25-90 cm, temperature ranges between 27-31.8.0C, pH between 67.1-8.7, salinity 19-31 ppt, dissolved oxygen between> 4.03 -5.60 mg / l, alkalinity ranges from 74-154 mg / l, TOM ranges from 24.8-90.0 mg / l, ammonium ranges from 0.5-5 mg / l, nitrites range between 0.5 -18 mg / l, and phosphate ranges from 0.25-18 mg / l.
Application of The Temperature Shock Method (Heat Shock) on Pearl Oyster (Pinctada maxima) Hatcheries Lusiana BR Ritonga
Journal of Aquaculture Development and Environment Vol 5, No 1 (2022): Journal Of Aquaculture Development And Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v5i1.5666

Abstract

The low production and quality of pearls produced from the cultivation process, one of which iscaused by the less than optimal quality of pearl oysters. Spawning is a determining factor in hatcheryactivities. Therefore, in an effort to increase production, it requires strategies and improvements inthe pearl oyster spawning process. This study aims to apply the temperature shock method as an effortto increase productivity and success rate of pearl oyster hatchery. The results of observations ongonad maturity in pearl oyster broodstock obtained data from a total of 200 broods consisting of 135male broods and 75 female brooders aged 3.5 years, the percentage of perfectly gonadally maturebroodstock was 11.85% and 12%, respectively a total of 25 individuals. The results of spawning pearloyster broodstock through the temperature shock method of a total of 18 broods observed were 12brooders or 66.7% which spawned perfectly. The results of the observation of the spawning process ofpearl oyster broodstock showed that from 8 female broodstock ± 90,000,000 eggs were obtained witha hatching rate of 70% with a spat harvest of ± 1,575,000 individuals or 2.5% of the total hatchedlarvae final yield.