Ockstan Kalesaran
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Published : 5 Documents
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Studi Parameter Fisika Kimia Air pada Areal Budidaya Ikan di Danau Tondano, Desa Paleloan, Kabupaten Minahasa Tatangindatu, Frits; Kalesaran, Ockstan; Rompas, Robert
e-Journal BUDIDAYA PERAIRAN Vol 1, No 2 (2013)
Publisher : e-Journal BUDIDAYA PERAIRAN

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Abstract

The purpose of this research was to analyze the physical and chemical parameters of waters (temperature, turbidity, pH, dissolved oxygen, nitrate, phosphate, ammonia and BOD) around net cage culture area at Peleloan Village, Minahasa Regency and to determine the suitable culture site supporting optimal growth of fish. water quality was measured at three sites. Temperature, turbidity, and pH were measured in situ while dissolved oxygen, nitrate, phosphate, ammonia and BOD were analised in laboratorium. Research results showed water temperature at all observation sites ranged from 25.5-28.2 0C, turbidity 2.02-3.15 m, pH 6.8 – 8.2, DO 7.41-7.77 mg/L, nitrate 0.3-0.5 mg/L, phosphate 0.00-0.4 mg/L, ammonia 0.13-0.77 mg/L. Based on water quality standard criteria stated in PP No. 82, 2001, temperature, turbidity, pH, DO and nitrate at fish culture area were suitable for floating and stick net cage cultures but ammonia at all sites of observation, phosphate at site I at 0.5 m from the bottom and BOD at site III at 0.5 m from the bottom were exceeding the standard criteria. Keywords: water physical and chemical Parameters, floating net cage, Lake Tondano, Paleloan Village
The effect of immersion in different doses of methyl testosteron hormone on survival and growth of nile tilapia larvae, Oreochromis niloticus Matheos, Refli; Watung, Juliaan Ch.; Kalesaran, Ockstan
e-Journal BUDIDAYA PERAIRAN Vol 1, No 3 (2013)
Publisher : e-Journal BUDIDAYA PERAIRAN

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Abstract

This study aimed to determine the effect of methyl testosterone hormone for immersion of tilapia larvae for 8 hours on survival rate and growth of tilapia larvae (Oreochromis niloticus). Test animals used were as many as 240 larvae of tilapia, with methyl testosterone hormone treatment as much as A = 0 mg / l, B = 1,5 mg / l, C = 2,5 mg / l, and D = 3,5 mg /. Survival rate of tilapia larvae live on the highest dose of 1.5 mg / l which is 93.33% (A) followed by 83.3% (C), 80% (A), 75% (D). Highest absolute growth of larvae at the 2,34 cm (D) followed at 2,23 cm (C), 2,21 cm (B), 2,13 cm (A). The results showed that the differences in the dose of methyl testosterone did not give significantly different effect on survival rate of larvae and absolute growth. Keywords: immersion, methyl testosterone hormone, Oreochromis niloticus, survival
Sintasan Dan Pertumbuhan Larva Ikan Ikan Lele (Clarias sp) Hasil Penetasan Telur Melalui Penambahan Madu Dalam Pengenceran Sperma Mambrasar, Pulinus; Monijung, Revol; Kalesaran, Ockstan; Watung, Juliaan Ch
e-Journal BUDIDAYA PERAIRAN Vol 3, No 1 (2015)
Publisher : Universitas Sam Ratulangi

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Abstract

The purposes of research were to determine the survival and growth of catfish larvae (Clarias sp) produced from eggs using honey in sperm dilution.  Sperm dilution was prepared by disolving honey (0 mL; 0,6 mL; 0,65 mL; dan 0,7 mL) in 100 mL, 99,4 mL; 99,35 mL dan 99,3 mL NaCl respectively. The research was conducted using Complete Randomized Design (CRD) with four treatments each with three replications. Research results showed that survival of larvae at treatment D was the highest (81,33%), followed by treatment C (75%) and B (72%) and the lowest was treatment A (63.67%). The highest absolute length growth was achieved at treatment D (1.73 cm) followed by treatment C (1.40 cm), B (1.10 cm) and the lowest was treatment A (1.03 cm). It could be concluded that supplementation of honey in sperm dilution influenced the survival and growth of catfish larvae Keywords: honey, Clarias sp, sperm dilution, survival, growth
Studi pengembangan unit perbenihan ikan laut di Pulau Gumilamo Kabupaten Halmahera Utara Koloba, Yitzhak; Sinjal, Hengky J; Kalesaran, Ockstan
e-Journal BUDIDAYA PERAIRAN Vol 3, No 3 (2015)
Publisher : e-Journal BUDIDAYA PERAIRAN

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Abstract

This research intended  to evaluate the development strategy of Marine Fish Hatchery Unit at Gumilamo Island, North Halmahera. Analysis SWOT was used to determine the development strategy. Data were collected by questionnaire, interview and literature relevant to the research. SWOT analysis showed the internal and external factors that affected the development of Marine Fish Hatchery at Gumilamo island. The strenght were location, water quality , local government support, and availability of seeds and feed. Weakness were lack of public interest, lack of extension and human resources. Opportunity were the high value of the sale, business opportunities and  local government regulation. Treat were  dependence on fishing effort and safety.   Keywords : hatchery, gumilamo, north halmahera, SWOT analysis
Pengaruh ovaprim, aromatase inhibitor, dan hipofisa terhadap kualitas telur ikan Lele Dumbo (Clarias gariepinus) Aziz, Erwin A.; Kalesaran, Ockstan
e-Journal BUDIDAYA PERAIRAN Vol 5, No 1 (2017)
Publisher : e-Journal BUDIDAYA PERAIRAN

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Abstract

This study aimed to determine the effect of ovaprim hormone, aromatase inhibitor and pituitary on the quality of the catfish eggs (Clarias gariepinus). Experimental Design used was Completely Randomized Design (CRD) with four treatments, each with three replications. Treatment A: ovaprim; treatment B: Aromatase inhibitors, treatment C: hypophysis and treatment D: Control. The results showed that the difference in treatment gave highly significant effect on fertilization and hatching eggs but no significant effect on the survival rate of larvae. Aromatase inhibitor hormone was the best because it provided highly significant effect on fertilization (92.66%), hatchability of eggs (95%), and surviva rate (81.33%) of fish larvae.   Keywords : Clarias gariepinus. Ovaprim, Aromatase Inhibitor, Hypophysis, egg, larvae