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All Journal AKULTURASI (JURNAL ILMIAH AGROBISNIS PERIKANAN) AQUATIC SCIENCE & MANAGEMENT e-Journal BUDIDAYA PERAIRAN JURNAL PESISIR DAN LAUT TROPIS JURNAL ILMIAH PLATAX JURNAL PERIKANAN DAN KELAUTAN TROPIS Media Akuakultur Journal of Aquaculture and Fish Health Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Jurnal Perikanan
Ockstan Kalesaran
Universitas Sam Ratulangi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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Kajian perubahan warna gonad kerang mutiara hitam Pinctada margaritifera berdasarkan ukuran cangkang di perairan Teluk Talengen, Kepulauan Sangihe Bawekes, Frisley Rici; Kalesaran, Ockstan J.; Lumenta, Cyska; Mingkid, Winda M.; Kusen, Diane J.; Sambali, Hariyani
e-Journal BUDIDAYA PERAIRAN Vol. 12 No. 2 (2024): Juli - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The black pearl oyster Pinctada margaritifera (Linnaeus, 1758) or black lip pearl oyster is a marine bivalve with important economic value. P. margaritifera is a protandrous hermaphroditic species. Externally it is difficult to differentiate between male and female gonads. This research aimed to determine differences in gonad color and determine the sex of P. margaritifera based on shell size. The test animals used in this research were black pearl mussels P. margaritifera totaling 33 samples taken from Talengen Bay, Sangihe Islands Regency, North Sulawesi. The results of morphometric measurements showed the average shell length was 103.16 mm, where the maximum shell length was 131.61 mm and the minimum was 81.29 mm. The average shell width was 105.65 (max 141.17 mm-min 83.21mm), the average shell thickness was 32.46 mm (max 44.36, min 20.11mm). The gonads were white and slightly yellow in 24 males and yellow in 9 females. P. margaritifera with a shell length of 90-130 mm was found to be female, and most were 110-120 mm in size. Meanwhile, shell lengths <80 mm and 110-130 mm male pearl oysters were still found. Keywords: marine bivalve, growth rate, morphometric, shell length
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.
Plankton Community Structure In Halmahera Barat Coastal Zone Tamrin; Joshian Nicolas William Schaduw; Haryani Sambali; Adnan Sjaltout Wantasen; Desy Maria Helena Mantiri; Rene Charles Kepel; Winda Mercedes Mingkid; Ockstan Jurike Kalesaran; Nurhalis Wahidin; Muhammad Aris
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i1.53407

Abstract

Research on plankton organisms in supporting aquatic resource management is very important to do. This study aims to see the structure of the plankton community in the coastal waters of West Halmahera Regency. There were 9 sampling sites, namely the waters of Toniku (TO), Tewe (TW), Dodinga (DG), Tuada (TU), Porniti (PR), Payo (PA), Bobo (BO), Sahu (SH), and Ibu (IB). Plankton observations used the Census-SRC method. The parameters observed were abundance, diversity index, uniformity index, and dominance index. The results showed that the highest phytoplankton abundance was found in the TO area, namely 1.7 x 107 cells/m3 and the lowest was 4.1 x 106 cells/m3 in the PR area. The highest phytoplankton diversity index was found in the PR area, namely 2.075 and the lowest was 1.429 in the IB area. The highest uniformity index of phytoplankton was found in the PR area, namely 0.901 and the lowest was 0.624 in the BO and DG areas. The highest phytoplankton dominance index was found in the IB area, namely 0.350 and the lowest was 0.138 in the PR area. The highest zooplankton abundance was found in the DG area at 2.0 x 106 cells/m3 and the lowest was 3.3 x 105 cells/m3 in the IB area. The highest zooplankton diversity index was found in the TU area, namely 1.981 and the lowest was 1.516 in the IB area. The highest uniformity index of zooplankton was found in the IB area, namely 0.942 and the lowest was 0.761 in the DG area. The highest zooplankton dominance index was found in the BO area, namely 0.266 and the lowest was 0.167 in the TU area. The conclusion of this study revealed that the most common type of plankton found was Bacillariophyceae. While the diversity value shows moderate diversity, the uniformity value shows a high level of uniformity, and the dominance value shows low-moderate dominance. Keywords: Diversity index; Uniformity index; Dominance index; Abundance; Plankton Abstrak Penelitian tentang organisme plankton dalam mendukung pengelolaan sumberdaya perairan sangat penting untuk dilakukan. Penelitian ini bertujuan melihat struktur komunitas plankton perairan kawasan pesisir Kabupaten Halmahera Barat. Terdapat 9 lokasi sampling, yaitu perairan Toniku (TO), Tewe (TW), Dodinga (DG), Tuada (TU), Porniti (PR), Payo (PA), Bobo (BO), Sahu (SH), dan Ibu (IB). Pengamatan plankton menggunkan metode Sensus-SRC. Parameter yang diamati adalah kelimpahan, indeks keragaman, indeks keseragaman, dan indeks dominansi. Hasil penelitian menunjukan kelimpahan fitoplankton tertinggi terdapat di kawasan TO yaitu 1,7 x 107 Sel/m3 dan terendah 4,1 x 106 Sel/m3 di kawasan PR. Indeks keragaman fitoplankton tertinggi terdapat di kawasan PR yaitu 2,075 dan terendah 1,429 di kawasan IB. Indeks keseragaman tertinggi fitoplankton terdapat di kawasan PR yaitu 0,901 dan terendah 0,624 di kawasan BO dan DG. Semetara indeks dominansi fitoplankton tertinggi terdapat di kawasan IB yaitu 0,350 dan terendah 0,138 di kawasan PR. Kelimpahan zooplankton tertinggi terdapat di kawasan DG yaitu 2,0 x 106 Sel/m3 dan terendah 3,3 x 105 Sel/m3 di kawasan IB. Indeks keragaman zooplankton tertinggi terdapat di kawasan TU yaitu 1,981 dan terendah 1,516 di kawasan IB. Indeks keseragaman tertinggi zooplankton terdapat di kawasan IB yaitu 0,942 dan terendah 0,761 di kawasan DG. Semetara indeks dominansi zooplankton tertinggi terdapat di kawasan BO yaitu 0,266 dan terendah 0,167 di kawasan TU. Kesimpulan penelitian ini mengungkapkan jenis plankton yang paling banyak ditemukan adalah Bacillariophyceae. Sementara nilai keragaman menunjukkan karagaman sedang, nilai keseragaman menunjukkan tingkat kesergaman tinggi, dan nilai dominasi menunjukkan dominansi rendah – sedang. Kata kunci: Indeks keragaman; Indeks keseragaman; Indeks dominansi; Kelimpahan; Plankton.
POLA PERTUMBUHAN KERANG MUTIARA Pinctada margaritifera DI PERAIRAN SULAWESI UTARA Ockstan Kalesaran; Cyska Lumenta; Winda Mingkid
Jurnal Perikanan Unram Vol 11 No 2 (2021): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v11i2.260

Abstract

The pearl oyster Pinctada margaritifera (Linnaeus, 1758) or black lip pearl oyster is a marinebivalves with important economic value. This Indo-Pacific species is found in abundance in the waters of North Sulawesi, but cultivation activities have not been optimized. Growth information is important for aquaculture activities because it is a useful indicator to determine the health of pearl oysters and environmental suitability (Moussa, 2013). The purpose of this study was to determine the growth pattern of P. margaritifera pearl shells in the waters of North Sulawesi. Species P. margaritifera were collected at a depth of 2-20 m in the waters of North Minahasa Bahoi, Arakan waters South Minahasa and Talengen waters Sangihe Islands, North Sulawesi Province. The morphometric parameters observed included shell length (PC), shell height (TC), shell thickness (tC), and total weight (BT). The relationship between length, height, shell thickness and total weight was analyzed by regression equation. Morphometric measurements of P. margaritifera showed average shell length (PC) of 95.26 mm (Arakan waters), 81.15 mm (Talengen waters) and 70.19 mm (Bahoi waters). The growth pattern of P. margaritifera in the waters of Bahoi, Arakan and Talengen, North Sulawesi Province was allometric negative. This means that the increase in length, height and thickness of the shell is faster than the total weight.
KARAKTERISTIK MORFOMETRIK DAN POLA PERTUMBUHAN IKAN NILA (Oreochromis niloticus) YANG DIBERI PAKAN MIKROKAPSUL INKLUSI BERBEDA Fintarji, Rian; Pangkey, Henneke; Mokolensang, Jeffrie Fredrik; Sambali, Hariyani; Kalesaran, Ockstan Jurike; Pangemanan, Novie Pankie Lukas; Sumilat, Deiske Adeliene
Media Akuakultur Vol 20, No 1 (2025): Juni 2025
Publisher : Politeknik Kelautan dan Perikanan Bone

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ma.20.1.2025.35-44

Abstract

Produksi perikanan budidaya dapat ditingkatkan melalui penyediaan pakan yang sesuai dengan kebutuhan ikan, mencakup aspek jenis, ukuran, maupun jumlahnya. Pakan mikrokapsul adalah jenis pakan buatan berukuran sangat kecil (mikron) yang dirancang khusus untuk memenuhi kebutuhan nutrisi ikan pada tahap larva dan benih.Tujuan penelitian ini adalah untuk menganalisis karakteristik morfometrik dan pola pertumbuhan ikan yang diberi pakan mikrokapsul inklusi berbeda. Penelitian ini menggunakan 1.080 ekor benih ikan nila merah berukuran 1-3 cm pada wadah akuarium. Akuarium yang digunakan berukuran 60x40x40 cm yang kemudian diisi air sebanyak 72 L dan ditebar sebanyak 1 ekor L-1. Penelitian ini didesain dengan menggunakan rancangan acak lengkap dengan lima perlakuan dengan masing-masing tiga ulangan. Perlakuan satu yaitu pemberian pakan komersil (kontrol), perlakuan dua yaitu pemberian pakan mikrokapsul tepung Tubifex sp., perlakuan tiga yaitu pemberian pakan mikrokapsul tepung Maggot, perlakuan empat yaitu pemberian pakan mikrokapsul tepung Spirulina sp., dan perlakuan lima yaitu pemberian pakan mikrokapsul tepung Chlorella sp.. Hasil penelitian menunjukkan bahwa karakteristik morfometrik ikan nila berbeda pada setiap perlakuan. Hasil uji regresi linear sederhana terhadap parameter pola pertumbuhan ikan nila pada semua perlakuan bersifat alometrik negatif, yakni pertumbuhan panjang lebih cepat daripada pertumbuhan beratnya. Hasil pengukuran kualitas air pada semua perlakuan menunjukkan hasil yang sesuai dengan baku mutu untuk pemeliharaan ikan nila dengan kisaran nilai suhu berkisar 25,1-29,6 o C, oksigen terlarut berkisar 5,1-6,8 mg L-1, pH berkisar 7,42-8,14, dan amonia berkisar 0,01-0,17 mg L-1.Aquaculture production can be increased by providing feed that is appropriate to the need of fish, both in terms of type, size, and quantity. Microcapsule feed is a type of artificial feed with very small sizes (microns) specifically designed to fulfil the nutritional need at the larval and fry fish stages. This study aimed to analyze the morphometric characteristics and growth patterns of fed microcapsules with different inclusions. The study was conducted using 1.080 tilapia with size of 1-3 cm in aquariums. The aquarium used was 60x40x40 cm and was then filled with 72 L of water with a stocking density of 1 fish L-1. This study used a completely randomized design with five treatments and three replications each. Treatment one is the provision of commercial feed (control), treatment two is the provision of microcapsule feed with Tubifex sp flour, treatment three is the provision of microcapsule feed with Maggot flour, treatment four the provision of microcapsule feed with Spirulina sp flour, and treatment five is the provision of microcapsule feed with Chlorella sp flour. The results of the study showed that the morphometric characteristics of tilapia were different in each treatment. The results of the simple linear regression test on the parameters of tilapia growth patterns in all treatments were negative allometric, namely the growth in length was faster than the growth in weight. The results of water quality measurements in all treatments showed results that were in accordance with quality standards for tilapia with a temperature range of 25,1-29,6 oC, dissolved oxygen range of 5,1-6,8 mg L-1, pH range of 7,42-8,14, and ammonia range of 0,01-0,17 mg L-1.
Effectiveness of coconut water (Cocos nucifera) in feed on masculinization and growth factors of nile tilapia (Oreochromis niloticus) Sukmawati; Kalesaran, Ockstan J.; Warouw, Veibe; Mokolensang, Jeffrie F.; Paransa, Darus Sa'adah Johanis; Salaki, Christina Leta
AQUATIC SCIENCE & MANAGEMENT Vol. 13 No. 2 (2025): OCTOBER
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.v13i2.64394

Abstract

This study evaluated the effectiveness of coconut water (Cocos nucifera) applied as a spray onto feed for the masculinization and growth performance of Nile tilapia (Oreochromis niloticus). The 63-day experiment employed a completely randomized design (CRD) with five treatments of coconut water doses (0, 0.10, 0.15, 0.20, and 0.25 mL/g feed) and three replications. Measured parameters included male proportion, growth performance (absolute length and weight, specific growth rate), survival rate, and water quality. Results indicated that coconut water supplementation significantly influenced masculinization and growth. The optimal dose was 0.15 mL/g feed, which yielded the highest male proportion (63.65%)—a 13.65% increase over the control. At this dose, absolute length and weight reached 7.15 cm and 5.34 g, respectively, with a specific growth rate of 8.62%. In contrast, higher doses (0.20-0.25 mL/g) reduced both masculinization and growth performance, despite high survival rates (90-95%). Water quality parameters remained within optimal ranges throughout the trial. These findings suggest that coconut water is a viable, eco-friendly alternative to synthetic hormones for tilapia masculinization and can enhance growth when applied at the recommended dosage.
Co-Authors Adi Iriyanto Adnan Sjaltout Wantasen Adnan Wantasen Ali Djamhuri Anneke V. Lohoo Ari B. Rondonuwu Aziz, Erwin A. Baring, Vira Bawekes, Frisley Rici Boneka, Farnis Bineada Carolus Paulus Paruntu Chintya Prameisella Hormati Christo V S Aer, Christo V S Christo V.S Aer, Christo V.S Cyska Lumenta Cyska Lumenta Cyska Lumenta Cyska Lumenta Cyska Lumenta Darus S. Paransa Datunsolang, Frayogi Deiske Adeliene Sumilat, Deiske Adeliene Diane J. Kusen Durand, Swenekhe S. Duyoh, Marini Edwin D Ngangi Edwin L.A. Ngangi Erly Y. Kaligis, Erly Y. Farnis Bineada Boneka Fatmawati Amin Fintarji, Rian Florence V. Longdong Frits Tatangindatu Ginting, Elvi L. Gompi, Wiranto Grace O. Tambani Hariyani Sambali Haryani Sambali Hengky J Sinjal Hengky J. Sinjal Hengky J. Sinjal Hengky J. Sinjal, Hengky J. Henneke Pangkey Henneke Pangkey Henneke Pangkey Hulda Mamoribo Indra R.N. Salindeho Indra Salindeho Jeannette F. Pangemanan, Jeannette F. Jeffrie F. Mokolensang Jeffrie F. Mokolensang Jimmy Mamuaya John L. Tombokan Joppy D. Mudeng Joppy Mudeng Joshian Nicolas William Schaduw Juliaan Ch Watung Juliaan Ch. Watung Julian Ch Watung Kariawu, Karina S.F. Kirikanang, Zefanya V. Kreckhoff, Reni L. Kusen, Diane J. Lusia Manu Mamangkey, Noldy Gustaf Frans Mamuaya, Gybert Mantiri, Desy M. H Marthin, Lutfi Medy Ompi Metlin Boroallo Mokolensang, Jeffrie F. Mokolensang, Jeffrie Fredrik Monijung, Revol D. Monika Padwa Mudeng, Nico E.G. Muhammad Aris Nego E. Bataragoa, Nego E. Noni Saliwati Sarifudin Novie P. L. Pangemanan Pangemanan, Novie P. L. Pangemanan, Novie Pankie Lukas Paransa, Darus Sa'adah Johanis Pongajouw, Oxha Putra Prislawati Paputungan Pulinus Mambrasar Refli Matheos Reiny A. Tumbol Rene Charles Kepel, Rene Charles Revol D Monijung Revol Monijung Risaldo Tjodi, Risaldo Ristamaria Manullang Robert J Rompas Robert Rompas Rompas, Rizald Rondonuwu, Yonatan Y. Salaki, Christina Leta Salaki, Meiske S. Salawati, Vellysa Friendly Sambali, Hariyani Sammy N. J. Longdong Sammy N. J. Longdong Sammy N.J Longdong Sammy N.J. Longdong Sammy N.J. Longdong Sartje Lantu Sedu, Aprini L. Silalahi, Torang J. P. Silvester B Pratasik Sinjal, Julius H. Sipriana S. Tumembouw Sipriana S. Tumembouw sukmawati Sumtaki, Karel Suzanne L Undap Suzanne L. Undap Suzanne L. Undap Suzanne L. Undap Tampa, Ahazia Imanuel Tamrin Tamrin Tamrin Tatalede, Putri A. Tatuhe, Familia Taufiq Abdullah Ursula Pinontoan Veibe Warouw Wahidin, Nurhalis Weismann G.F Lucas, Weismann G.F Winda Mercedes Mingkid Yitzhak Koloba, Yitzhak