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All Journal e-Journal BUDIDAYA PERAIRAN JURNAL ILMIAH PLATAX
Ockstan Kalesaran
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Environmental Science

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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 : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.3.2015.10360

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
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 : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.1.2.2013.1911

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 : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.1.3.2013.2734

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.1.2015.6943

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
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 : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.5.1.2017.14836

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
Morphological Characteristics and Shell Color Of Littoraria pallescens Prosobrancia Molusca From Different Mangrove In Tongkaina Waters, Manado City Salawati, Vellysa Friendly; Mantiri, Desy Maria Helena; Boneka, Farnis Bineada; Mamangkey, Noldy Gustaf Frans; Warouw, Veibe; Kalesaran, Ockstan
Jurnal Ilmiah Platax Vol. 10 No. 1 (2022): ISSUE JANUARY-JUNE 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i1.38559

Abstract

The purpose of this study was to identify sea slugs L. pallescens taken from two different mangroves, namely Rhizophora mucronata and Avicennia marina in Tongkaina waters, Bunaken District, Manado City based on morphology and anatomy as well as shell color. Identification of mangroves and sea slugs refers to the identification book. The results obtained were L. pallescens species with elongated and tapered morphology at the end of the shell measuring 0.3-2.7 cm. The operculum is purple. The color of the shell obtained was 66.85% consisting of dark colors (black, black, orange, brown and gray spots), occupying the stems and roots of the mangrove, while the light colors (yellow, yellow, dark spots and red) were found to be 33.15%, occupying the leaves and stems of mangroves. The high survival rate of L. pallescens was found in the mangrove roots. This species was found in R. mucronata by 65.26% while in A. marina only 34.74%, this could be caused by differences in the shape of the mangrove roots.Keywords: L. pallescens; Mangrove; Shell color; MorphologyAbstrakTujuan penelitian ini adalah mengindentifikasi siput laut L. pallescens yang diambil dari dua mangrove berbeda yaitu Rhizopora mucronata dan Avicennia marina di perairan Tongkaina, Kecamatan Bunaken, Kota Manado berdasarkan morfologi dan anatomi serta warna cangkang. Identifikasi mangrove dan siput laut merujuk pada buku identifikasi. Hasil penelitian yang diperoleh yaitu spesies L. pallescens dengan bentuk morfologi memanjang dan meruncing, pada bagian ujung cangkang berukuran  0,3-2,7 cm. Operculum berwarna ungu. Warna cangkang yang diperoleh 66,85% yang terdiri dari warna gelap (hitam, hitam bercak orange, coklat dan abu-abu), menempati bagian batang dan akar mangrove sedangkan warna terang (kuning, kuning bercak gelap dan merah) didapat 33,15%, menempati bagian daun dan batang mangrove. Tingginya kelangsungan hidup  L. pallescens berada pada bagian akar mangrove. Spesies ini ditemukan pada R. mucronata sebesar 65,26% sedangkan pada A. marina hanya 34,74%, hal ini dapat disebabkan oleh karena perbedaan bentuk akar mangrove.  Kata Kunci: L. Pallescens; Mangrove; Warna cangkang; Morfologi
Distribution of Size of Banggai Cardinal Fish Pterapogon kauderni Koumans, 1933 in the Front Waters of Dudepo, South Bolaang Mongondow Regency Pongajouw, Oxha Putra; Rondonuwu, Ari B.; Bataragoa, Nego E.; Kalesaran, Ockstan; Lohoo, Anneke V.; Salaki, Meiske S.
Jurnal Ilmiah Platax Vol. 10 No. 1 (2022): ISSUE JANUARY-JUNE 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i1.38695

Abstract

 This study aims to determine the distribution of sizes and morphological characters of Banggai Cardinal fish in the waters in front of Dudepo Village, South Bolaang Mongondow Regency. Field data collection using the explorer survey method with diving and snorkeling activities. Fishing in each microhabitat with “Sibu” fishing gear. The size distribution of cardinal Banggai fish is in the range of 2.7 - 9.2 cm. The size of the male Banggai Cardinal fish is in the range of 3.8 - 9.2, while the female is in the range of 3.7 - 8.1 cm. The size of fish in symbiosis with anemones is in the range of 2.7 - 7.1 cm, while those in sea urchins are in the range of 4.8 - 9.2 cm.Keywords: Size Distribution; Banggai Cardinal fish; morphological charactersAbstrakPenelitian ini bertujuan untuk mengetahui sebaran ukuran dan karakter morfologi ikan banggai kardinal di perairan Desa Dudepo, Kabupaten Bolaang Mongondow Selatan. Pengambilan data lapangan menggunakan metode survei jelajah dengan kegiatan penyelaman dan snorkling.  Penangkapan ikan di setiap mikrohabitat, dengan alat tangkap “Sibu”.  Sebaran ukuran ikan banggai kardinal berada pada kisaran 2,7 - 9,2 cm.  Ukuran ikan banggai kardinal jantan berada pada kisaran 3,8 - 9,2, sedangkan betina berada pada kisaran 3,7 - 8,1 cm.  Ukuran ikan yang bersimbiosis dengan anemon berada pada kisaran 2,7 - 7,1 cm, sementara yang berada di bulu babi berkisar 4,8 - 9,2 cm.
Co-Authors Anneke V. Lohoo Ari B. Rondonuwu Aziz, Erwin A. Boneka, Farnis Bineada Cyska Lumenta Frits Tatangindatu Hengky J Sinjal Juliaan Ch Watung Juliaan Ch. Watung Mamangkey, Noldy Gustaf Frans Mantiri, Desy M. H Nego E. Bataragoa, Nego E. Pongajouw, Oxha Putra Pulinus Mambrasar Refli Matheos Revol Monijung Robert Rompas Salaki, Meiske S. Salawati, Vellysa Friendly Veibe Warouw Winda Mingkid Yitzhak Koloba, Yitzhak