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All Journal e-Journal BUDIDAYA PERAIRAN JURNAL PESISIR DAN LAUT TROPIS JURNAL ILMIAH PLATAX
Kreckhoff, Reni L.
Staf Pengajar Pada Program Studi Budidaya Perairan FPIK UNSRAT
Earth & Planetary Sciences Environmental Science

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Kesesuaian lahan budi daya rumput laut Caulerpa sp. di Perairan Tanjung Kamala, Minahasa Utara Mamonto, Reva E.; Ngangi, Edwin. L. A.; Undap, Suzanne L.; Kreckhoff, Reni L.; Longdong, Sammy N. J.; Monijung, Revol J.; Pangemanan, Novie P. L.
e-Journal BUDIDAYA PERAIRAN Vol. 12 No. 1 (2024): Januari - Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v12i1.56193

Abstract

Abstract Bahoi Waters is located in West Likupang District, known as a coastal village that has a lot of fishing and marine potential. Utilization of Bahoi waters for seaweed cultivation requires good seawater quality to meet the requirements for cultivation. Water quality is one of the factors that plays an important role in the success of seaweed cultivation. The aim of the research was to determine the suitability of water in Bahoi Village for  land for seaweed (Caulerpa sp.) cultivation. The research used in situ measurements at 3 stations, namely: Station A (Existing Cultivation Location), Station B (Tanjung Kamala Waters), and Station C (Tamperong Island Waters). Data collection was carried out 2 times with 3 repetitions for measurement of water parameters. Measurement time was carried out at 07:00 – 09:00; 12:00-14:00, and 17:00- 19:00. Data was analyzed by comparing physical parameters and chemical parameters at each station with a scoring table and weights in the land suitability matrix. The conformity class determination obtained was: Very Suitable with a value range of 37 – 48 (S1), Suitable 25 – 36 (S2), and Not Suitable 16 – 24 (S3). The scoring value for suitability of water quality parameters at Station A was 46, Station B 47, and Station C 44. In conclusion, all stations are in the Very Suitable class for cultivating Caulerpa sp.  Keywords: Caulerpa sp., water quality, seaweed
Produksi Eucheuma spp. di Sentra Akuakultur Provinsi Sulawesi Utara tahun 2023 Usoh, Yosua; Salindeho, Indra R.N.; Mudeng, Joppy D.; Ngangi, Edwin L. A.; Kreckhoff, Reni L.; Tumembouw, Sipriana S.
e-Journal BUDIDAYA PERAIRAN Vol. 12 No. 2 (2024): Juli - Desember
Publisher : Universitas Sam Ratulangi

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Abstract

This study aimed to determine the seaweed production in North Sulawesi Province in 2023 and to find out the technical and non-technical factors that affect Eucheuma production in North Sulawesi. Data were collected by a survey through questionnaires, from existing records at related institutions as well as direct interviews with the farmers.  The results showed that the total Eucheuma production in North Sulawesi Province in 2023 only came from the production in North Minahasa Regency, namely Nain Village as much as 473.76 tons,  Nain Satu was 234.36 tons and Mantehage II Tangkasi  was 131.4 tons. Thus, the total seaweed production for North Sulawesi province for 2023 was  839.52 tons. Technical and non-technical factors that influenced production were the lack quality of seaweed seeds, polluted sea waters, unpredictable weather, pests and disease attacks that have not been resolved, lack of adequate cultivation facilities and infrastructure, lack of qualified human resources (HR), limited capital and seaweed prices. Keywords: Seaweed, Nain Induk, Nain Satu, Mantehage II Tangkasi.
Identifikasi bakteri Vibrio spp. penyebab vibriosis pada udang vanname (Litopenaeus vannamei) di PT. Pilar Persada Parigi Putra, Stevano F.P; Tumbol, Reiny A.; Undap, Suzanne L.; Kreckhoff, Reni L.; Pangemanan, Pankie N.L
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 | DOI: 10.35800/bdp.v12i2.58872

Abstract

The purpose of this study is to isolate and identify Vibrio spp. bacteria from vannamei shrimp (Litopenaeus vannamei) in PT. Pilar Persada Parigi Bajo Village, South Minahasa Regency. The research was carried out by starting with shrimp sampling from shrimp cultivation locations at PT. Persada Parigi Pillar in Bajo Village, Tatapaan, South Minahasa, North Sulawesi as many as 9 fish from 3 ponds (1 pond took 3 shrimp). The pond was recommended by the pond technician of PT. The Persada Parigi pillar is related to the condition of the pond which is suspected of having Vibrio spp. bacteria that need special attention. The shrimp samples were then taken to the Laboratory alive. During transportation, the samples were put in 3 separate containers equipped with battery aerators, then the identification of Vibrio spp. bacteria was carried out at the Laboratory of Pharmaceutical Microbiology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University and at the Manado Fishery Products Quality Control and Safety Quarantine Center. Isolation of Vibrio spp. bacteria using TCBS (Thiosulfate Citrate Bile Sucrose) agar media. The characterization of Vibrio spp. bacteria was carried out by a series of tests, namely gram staining tests (gram negative, positive and bacterial form), main tests (KOH 3%, H₂O₂ and oxidase), Oxidation/Fermentation (O/F), Glucose and Motility Indole Ornithin (MIO). The results of the isolation showed that there were 9 isolates of Vibrio spp. bacteria from 9 samples of vannamei shrimp (Litopenaeus vannamei) from 3 different ponds. The results of bacterial characteristics obtained negative grams, yellow and green colony morphology, bacil/stem cell shape, KOH 3% (-), catalase (+), oxidase (+), O/F (fermentative), indole (+), and motility (+), glucose (+) from the results identified by Vibrio spp. bacteria. Keywords: Litopenaeus vannamei, Vibrio spp., Vibriosis, isolation, identification  
Kultivasi rumput laut Caulerpa lentillifera menggunakan berat awal berbeda dengan metode rawai permukaan Mamesah, Jeivana F.T; Mudeng, Joppy D.; Ngangi, Edwin L. A.; Kreckhoff, Reni L.; Salindeho, Indra R.N.; Sambali, Hariyani; Mokolensang, Jeffrie F.
e-Journal BUDIDAYA PERAIRAN Vol. 13 No. 1 (2025): Jan - Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v13i1.60331

Abstract

The research purposes were to determine the best initial weight of Caulerpa lentillifera algae, determine the appropriate cultural operational depth for the best growth of C.lentillifera algae, and determine the interaction between the initial weight factor of C.lentillifera algae and the depth factor of growth. This research was carried out from May to July 2023. The C. lentillifera algae in this research were obtained from nature. C.lentillifera algae culture is carried out using the verticulture method, namely tying the algae to strings arranged in a row. This research was designed using a 3x3 factorial in a Completely Randomized Design (RAL). There are 2 factors tested in this experiment, each of which has 3 levels, namely: the weight factor of C. lentillifera algae which consists of: A1 = 50 grams, A2 = 100 grams and A3 = 150 grams, and the depth factor which consists of: B1 = 20 cm, B2 = 70 cm and B3 = 120 cm. The results obtained from this research are that differences in the growth of C. lentillifera algae are very significantly influenced by differences in the initial weight of different. The best absolute growth, relative growth, and daily growth rate were initial C. lentillifera algae weights of 50 grams, which respectively had the highest average values of 24.3 grams, 16.2%, and 1.4%. Differences in depth had no significant influence on differences in absolute growth, relative growth, and daily growth rate of the algae C. lentillifera. The results of variance analysis showed that the influence of the weight factor of C. lentillifera on absolute growth, relative growth, and daily growth rate did not change significantly when the depth factor level was changed. Keywords: verticulture; growth; initial weight; depth
Management Strategies for Sea Cucumber (Holothuroidea) Fisheries Resources in West Likupang Sub-district Kudato, Vania; Sambali, Hariyani; Kreckhoff, Reni L.; Salindeho, Indra R. N.; Durand, Swenekhe S.; Tumembouw, Sipriana S.; Sumilat, Deiske A.
Jurnal Ilmiah Platax Vol. 13 No. 1 (2025): ISSUE JANUARY-JUNE 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i1.59365

Abstract

Indonesia is a tropical country with high marine biodiversity, including sea cucumber. The high demand for sea cucumber has led fishermen to catch sea cucumber regardless of the type or size suitable for harvesting. The lack of cultivation and regulations governing the protection of sea cucumbers has caused some species to be endangered. Sea cucumber species with high selling prices are increasingly difficult to find in West Likupang District. This study aims to identify strategies for managing sea cucumber fisheries sustainably and provide policy recommendations for their sustainable management in West Likupang District. This study used a survey method and then analyzed it with a SWOT analysis (strengths, weaknesses, opportunities, threats). The SWOT analysis reveals several strategies for achieving sustainable sea cucumber fisheries: legislation, conservation efforts, aquaculture development, regulated fishing, proper post-harvest handling, and educating fishermen on regulations. Keywords: Management, regulation, conservation, sea cucumber, SWOT Abstrak Indonesia merupakan negara tropis yang mempunyai keanekaragaman hayati laut yang tinggi, salah satunya ialah sumber daya trepang (Holothuridea). Permintaan pasar yang tinggi terhadap trepang, menyebabkan nelayan menangkap trepang tanpa mengindahkan jenis dan ukuran yang layak panen. Belum adanya budi daya dan regulasi yang mengatur perlindungan terhadap trepang menyebabkan beberapa spesies sudah terancam punah. Spesies trepang dengan harga jual yang tinggi makin sulit ditemukan terutama di Kecamatan Likupang Barat. Penelitian ini bertujuan untuk menentukan strategi pengelolaan sumber daya perikanan trepang, untuk mencapai perikanan trepang yang berkelanjutan, dan membuat rujukan atau rekomendasi kebijakan untuk pengelolaan sumber daya perikanan trepang (Holothuroidea) yang berkelanjutan secara umum Di Provinsi Sulawesi Utara, khususnya di Likupang Kabupaten Minahasa Utara. Penelitian ini menggunakan metode survei kemudian dianalisis dengan analisis SWOT (kekuatan, kelemahan, peluang, dan ancaman). Berdasarkan hasil analisis, terdapat beberapa strategi yang dapat dikembangkan untuk mencapai perikanan trepang yang berkelanjutan, yakni: regulasi berupa peraturan perundangan, upaya konservasi, pengembangan usaha budidaya, penangkapan yang terukur, penanganan pasca panen/penangkapan dari alam, dan sosialisasi kepada nelayan terkait peraturan Kata kunci: Pengelolaan, regulasi, konservasi, trepang, SWOT
Induction Time And Sedative (Recovery) Time In Closed System Transportation Of Tawes Fish (Barbonymus gonionotus) Anesthetized With Clove Oil At Different Temperatures Saragih, Debby Dyanessa; Ngangi, Edwin L.A.; Pangkey, Henneke; Sumilat, Deiske Adeliene; Salindeho, Indra R.N.; Kreckhoff, Reni Lusia; Kusen, Diane Joula
Jurnal Ilmiah Platax Vol. 13 No. 1 (2025): ISSUE JANUARY-JUNE 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i1.60961

Abstract

The conservation of tawes fish (Barbonymus gonionotus) is carried out through aquaculture and restocking, where seed transportation is a crucial factor affecting survival rates. Mishandling during transport can increase stress, metabolism, and mortality risk. Reducing stress during transport can be achieved by using natural anesthetic agents such as clove oil (Eugenia aromatica) and low-temperature regulation. This study aims to analyze the effects of clove oil dosage and temperature on the induction time and recovery of tawes fish seeds. The experiment was designed using a completely randomized design (CRD) with two factors: clove oil dosage (0 ppm, 5 ppm, 10 ppm) and temperature (16–19°C and 24–27°C), with 18 experimental units (3 replications). Data were analyzed using ANOVA (JMP-SAS). The results showed that combining clove oil and temperature significantly affected induction and recovery times. The 10 ppm clove oil treatment at 16–19°C resulted in the fastest induction time, while the 0 ppm treatment at 24–27°C led to the fastest recovery. The interaction between these factors demonstrated that clove oil significantly influenced the fish's response to temperature changes. Keywords: tawes fish seed, transportation, temperature, clove oil, induction, sedative.   Abstrak   Pelestarian ikan tawes (Barbonymus gonionotus) dilakukan melalui budidaya dan restocking, di mana transportasi benih menjadi faktor krusial yang memengaruhi tingkat kelangsungan hidupnya. Kesalahan dalam penanganan dapat meningkatkan stres, metabolisme, dan risiko kematian benih. Upaya menekan stres selama transportasi dilakukan dengan penggunaan agen pembius alami, seperti minyak cengkih (Eugenia aromatica) dan pengaturan suhu rendah.Penelitian ini bertujuan menganalisis pengaruh dan dosis minyak cengkih serta suhu terhadap waktu induksi dan pemulihan (recovery) benih ikan tawes. Percobaan menggunakan rancangan acak lengkap (RAL) dengan dua faktor: dosis minyak cengkih (0 ppm, 5 ppm, 10 ppm) dan suhu (16–19°C dan 24–27°C), dengan 18 unit percobaan (3 ulangan). Data dianalisis menggunakan ANOVA (JMP-SAS).Hasil penelitian menunjukkan bahwa kombinasi minyak cengkih dan suhu berpengaruh signifikan terhadap waktu induksi dan pemulihan benih. Perlakuan 10 ppm minyak cengkih pada suhu 16–19°C menghasilkan waktu induksi tercepat, sedangkan tanpa minyak cengkih pada suhu 24–27°C mempercepat pemulihan. Interaksi kedua faktor ini menunjukkan bahwa minyak cengkih secara nyata mempengaruhi respons ikan terhadap perubahan suhu. Kata kunci: benih tawes, transportasi, suhu, minyak cengkih, induksi, sedatif.
Co-Authors Adellin Dwiny Conchita Adnan Wantasen Alex D. Kambey Ali Djamhuri Aylifia S. Somba Billy Theodorus Wagey Cyska Lumenta Cyska Lumenta Dahlia Malau Datangmanis, Adieng A. R. Deiske A Sumilat Deiske Adeliene Sumilat, Deiske Adeliene Deiske Sumilat Dhebby Purba Diane J. Kusen Durand, Swenekhe S. Edwin D Ngangi Elvy Ginting Fitje Losung Fransine B. Manginsela Ginting, Elvi L. Grevo S Gerung Henky Manoppo Henky Manoppo Henneke Pangkey Indra R. N. Salindeho Indra R.N. Salindeho James J.H. Paulus Jasansong, Kalfianus Jhonly Solang Joppy Mudeng Juliaan Ch. Watung Kudato, Vania Kurniawan, Putra M. Kusen, Diane J. Kusen, Diane Joula Lauluw, Dafid Mamesah, Jeivana F.T Mamonto, Reva E. Mamuko, Nelsi Mantiri, Desy M. H Massora Dudung Maweikere, Fabiola C. Mokoginta, Leyda H. Mokolensang, Jeffrie F. Monijung, Revol D. Monijung, Revol J. Mudeng, Cindy C. Natalie D.C. Rumampuk Nego E. Bataragoa Ngangi, Edwin. L. A. Novie P.L. Pangemanan Ockstan J. Kalesaran Pangalila, Novelia M.A. Pangemanan, Novie P. L. Pangemanan, Novie P.L. Pankie N.L Pangemanan Pratasik, Gerald A. Prislawati Paputungan Putra, Stevano F.P Razak, Atiek P. Reiny A. Tumbol Reiny A. Tumbol Reiny A. Tumbol Rizald Rompas Rompas, Rizald M. Sambali, Hariyani Sambali, Haryani Sammy N. J. Longdong Sammy N. J. Longdong Sammy N.J. Longdong Sanggaria, Ayu W. Saragih, Debby Dyanessa Sartje Lantu Sartje Lantu Selvyane Bukasiang Shifa A. Schram Sinaga, Chintya R. Sinubu, Wulan V. Sipriana S. Tumembouw Suria Darwisito, Suria Suzanne L Undap Suzanne L. Undap Tindage, Tantri W. Tununu, Riky R. Umasugi, Aisin Undi, Chintia S. Usoh, Yosua Veibe Warouw Veibe Warouw Veibe Warouw Wantah, Monika M. Winda M. Mingkid Winda M. Mingkid Winda M. Mingkid, Winda M. Yuliana Macpal