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All Journal Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut JOURNAL OF COASTAL DEVELOPMENT KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Kelautan Tropis Jurnal Akuatika Indonesia JURNAL ENGGANO AGRIKAN Jurnal Ilmiah Agribisnis dan Perikanan Albacore : Jurnal Penelitian Perikanan Laut J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan dan Konseling Biopendix: Jurnal Biologi, Pendidikan dan Terapan PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Jurnal Abdi Insani Semah : Jurnal Pengelolaan Sumberdaya Peraira Pattimura Proceeding : Conference of Science and Technology Agrikan: Jurnal Agribisnis Perikanan Amanisal: Jurnal Teknologi dan Manajemen Perikanan Tangkap Jurnal Perikanan

Agustinus Tupamahu

Department Of Fisheries Resource Utilization, Faculty Of Fisheries And Marine Science, Universitas Pattimura, Ambon 97233, Indonesia

Author-ID : 3458059

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Other

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SELECTIVITY OF Decapterus macarelus (SCAD) DRIFT GILLNET IN KAYELI BAY MALUKU BY KITAHARA’S METHOD Agus Tupamahu
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 3 (2009): Volume 12, Number 3, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.664 KB)

To study the gear selectivity on scad Decapterus macarelus fishing experiments using drift gill net withdifferents mesh sizes were conducted in Kayeli Bay Buru Island Maluku. To obtain data of fork length sizecomposition, drift gillnets were operated at fish agregation devices along night time. The selectivity of driftgillnets for scad were estimated with Kitahara’s method. Mesh selectivity by a drift gillnet used for scadDecapterus macarelus shows a peaked curved with the efficiency at the peak of mesh selectivity increasingin proportion to the mesh size. The optimum size selectivity (fishing efficiency) of scad are ratio of 185 mmfork length class and 38 mm mesh size, 225 mm and 45 mm mesh size, and 255 mm and 51 mm mesh size.

Dinamika Daerah Penangkapan Ikan Pelagis di Kota Ambon Hansje Matakupan; J Hiariey; A Tupamahu; Mulyono S Baskoro
Akuatika Indonesia Vol 3, No 2 (2018): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Perairan Kota Ambon dan sekitarnya dimanfaatkan oleh nelayan sebagai daerah penangkapan ikan (DPI) pelagis. Aktifitas pemanfaatannya terindikasi dinamis sebab terjadi perubahan dan perkembangan penerapan teknologi penangkapan ikan serta peraturan di bidang perikanan. Penelitian dilakukan dengan tujuan memetakan batas dan menentukan luas daerah penangkapan ikan, mengetahui aksesibilitas, produksi, daerah dan musim penangkapan ikan pelagis, serta mengetahui permasalahan dan konflik pemanfaatan daerah penangkapan ikan pelagis. Data lapangan dikumpulkan pada lokasi terpilih dengan metode RRA dan PRA, juga dengan menggunakan kuesioner serta data sekunder dari berbagai sumber terpercaya. Analisis data dilakukan dengan bantuan komputer, yakni pemetaan batas dan penentuan luas DPI dengan metode kartometrik. Musim penangkapan ikan dianalisis dengan pendekatan statistik serta dibahas secara deskriptif. Permasalahan dan konflik pemanfaatan DPI dibuat dalam tabel untuk dibahas. Hasil pemetaan batas dan penentuan luas DPI Kota Ambon seluas 419,97 km2 dan nelayan Kota Ambon dapat mengakses DPI hingga seluas 1.316,46 km2 bahkan lebih luas lagi pada perairan sekitarnya Pada umumnya puncak musim penangkapan ikan pelagis di DPI Kota Ambon terjadi pada musim pancaroba II hingga musim Barat dan paceklik pada musim Timur.

PROFIL DAN PERSEPSI NELAYAN TERHADAP PERUBAHAN HASIL TANGKAPAN IKAN PERAIRAN PANTAI DI TELUK AMBON B G Hutubessy; F Silooy; A Tupamahu; S Siaheinenia; J B Pailin; R H S Tawari
JURNAL ENGGANO Vol 4, No 1
Publisher : Universitas Bengkulu

Nelayan mengetahui sumberdaya laut secara rinci, juga lingkungan mereka dan aktifitas penangkapan yang mereka lalukan, dan pengetahuan ini jarang dikoleksi secara sistimatik. Penelitian ini dilakukan untuk menguji persepsi nelayan terhadap perubahan hasil tangkapan dan penyebabnya. Kami mewawancarai nelayan pantai Haive Besar dengan menggunakan kuisioner yang sifatnya semi terstruktur. Informasi pribadi nelayan seperti umur dan pengalaman menangkap ikan, aktifitas penangkapan seperti alat yang digunakan dan daerah penangkapan, serta pengetahuan mereka tentang perubahan ekosistem menjadi topik pertanyaan di dalam kuisioner. Nelayan dengan usia karir menengah (21-35 tahun) lebih banyak dibandingkan nelayan usia karir muda dan karir tua. Nelayan mendeteksi perubahan pada ekosistem daerah penangkapan mereka seperti banyaknya sampah, limbah minyak, rusak dan berkurangnya habitat karang dan lamun serta kekeruhan. Dampak yang nelayan rasakan adalah hasil tangkapan yang semakin berkurang bahkan tidak ada lagi. Persepsi nelayan terhadap perubahan ekosistem dan hasil tangkapan mereka menjadi dasar bagi penelitian selanjutnya seperti fisheries assessment. FISHERS’ PROFILE AND PERCEPTION ON THE SHIFTING OF CATCH ON THE COAST OF AMBON BAY. Fishers have detailed knowledge of their resources, their environment, and their fishing practices that is rarely systematically collected. This study was undertaken to examine perceptions of fishers on the shifting of catch and the occasion of the changing. We conducted an interview with coastal Hative Besar fishers using a semi-structured questioner. Fishers’ profiles such as age and years at fishery, gears and fishing grounds was one part of the questions. Other part was fishers’ ecological knowledge focused on environmental condition and shifting catch. More fishers with middle career (21-35 year in fishery) than young and old careers were interviewed. Environmental changes included waste in the water, oil, corals and seagrasses degradation, and turbidity affected the catch of fishers. Fish became difficult to be found. We learn from this study that fishers’ perception is an important tool for further fisheries assessment study.

Effect of Twine Thickness on The Size Selectivity of The Dominant Catch of Bottom Gill Nets in Inner Ambon Bay Beatrix R Rananmasse; Agustinus Tupamahu; Haruna Haruna
Agrikan: Jurnal Agribisnis Perikanan Vol 15, No 1 (2022): SI: The Turning Point
Publisher : Sangia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.agrikan.15.1.101-107

There are several factors that affect the selectivity of gillnet, including mesh size and twine thickness of netting. The objective of this study is to estimate the level of selectivity of different mesh size and twine thickness on the dominant catch of bottom gillnets. The fishing experiment conducted in Inner Ambon Bay for 9 fishing trips. Data analysis used Kitahara method’s to estimate the selectivity of the mesh size of 3.81, 4,45 and 5.08 cm with twine thickness of netting 0.25 and 0.30 mm to the total length of the dominant catch. The results showed that there are two species of fish dominated catch i.e Upeneus taniopterus dan Selar crumenophthalmus. The frequency distribution of total length of the dominant catch from three mesh sizes tested for both 0.25 and 0.30 mm twine diameter tends to be bimodal, where the 0.25 mm is caught higher than 0.30 mm twine diameter. The probability of the catch of small and large fish for each mesh size was higher at 0.25 mm than 0.30 mm twine diameter.

Utilization and surveillance of Fisheries Tuna Resources as a Basis for Prevention of IUU Fishing in Seram Sea Syarif Abdul Radjak; Agustinus Tupamahu; Friesland Tuapetel; Haruna Haruna; Ruslan H.S Tawari
Agrikan: Jurnal Agribisnis Perikanan Vol 14, No 1 (2021)
Publisher : Sangia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.agrikan.14.1.135-140

This study aims to determine the conditions of tuna utilization, and to analyze the monitoring of tuna fisheries resources in preventing IUU fishing in Seram Sea Waters. Methods This research uses descriptive methods including primary and secondary data. Primary data comes from tuna fishermen respondents, fisheries monitoring agencies using purposive sampling and in-depth interviews, secondary data through literature studies. The results showed that the average tuna production in West Seram Regency was 4.10%, yellowfin tuna was 0.20%, the average CPUE of handline tuna fishermen was 505.86 kg/month/unit. The institutional capacity of fisheries supervisors needs to be improved, even though the vessel compliance indicator reaches 136%. Fishery violations during 2016-2018 are: violations of fishing routes and areas, violations of VMS, violations of fishing permits, and prohibitions on fishing by foreign people or vessels.

Supperior Fishing Gear for Coral Reef Fishes in Western Seram Regency Agustinus Tupamahu; Haruna Haruna; Barbara G Hutubessy; Stany R Siahainenia; Albert Ch Nanlohy; Kedswin Hehanusa
Agrikan: Jurnal Agribisnis Perikanan Vol 14, No 1 (2021)
Publisher : Sangia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.agrikan.14.1.54-64

Various fishing gears that are operated in the coral reef waters of Western Seram Regency have their own selectivity, capture various species of fish, and have an impact on the damage to coral reef ecosystems. This study aims to determine the leading reef fishing gears in Western Seram District. The survey method is through observations and interviews with fishermen who conduct fishing activities of coral species. Respondents are determined by propulsive sampling, the selection of superior fishing gear is done by the scoring method. The results showed that the fishing gear classified into the line fishing gear was superior to other fishing gear, where the bottom trolling were superior. The less favored coral fishing equipment especially from the biological aspect needs attention to improve the method and design of the fishing gear.

Analysis Financial Fisheries Business of Mackerel Scad (Decapterus macarellus) in the Southern Waters of Ambon Island Frentje D. Silooy; Agustinus Tupamahu; O. T. S Ongkers; D. D.P Matrutty
Agrikan: Jurnal Agribisnis Perikanan Vol 13, No 2 (2020)
Publisher : Sangia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.agrikan.13.2.175-181

This study aims 1) to determine the technical aspects of fishing with a mini purse seine; 2) to analyze the feasibility of a mini purse seine fishery business in the southern part of Ambon Island. This research was carried out from January to December 2018 in several fish landing sites scattered in the southern part of Ambon Island waters, namely Nusaniwe, Hutumuri and Lehari Villages. Sampling was by purposive sampling. Primary and secondary data were taken. Data were analyzed using descriptive analysis and business financial analysis. The dimensions of the mini purse seine vessels are 20-22.5 m long, 2.70-3.85 m wide, and 1.5-1.8 m high, the dimensions of the net are 225- 345 m long, 50-70.5 m high. The composition of the catch consisted of 4 types of fish, namely blue fly (59.8%), tuna (18.4%), skipjack (17.7%), and baby tuna (4.1%). The results showed that the mini purse seine fishery business met the requirements and was still feasible to develop. The results of the calculation of the business feasibility of a positive NPV and greater than zero (NPV> 0) of Rp. 933,471,927, an IRR of 15.8% greater than the interest rate (10.5%), the value of B / C> 1 of 1.18, the criteria for ROI of 20.14%, the value of PI (Profitability Index)> 1.

ALTERNATIF INVESTASI BISNIS PERIKANAN TANGKAP PELAGIS DI KOTA AMBON Hansje Matakupan; Johanis Hiariey; Agustinus Tupamahu; Mulyono S. Baskoro
PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Vol 2 No 2 (2018): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Investors can determine the appropriate investment alternatives in business, if they have calculated business feasibility based on investment criteria. Based on investment criteria, investors can determine investment alternatives appropriately. Research on investment alternatives in the pelagic capture fisheries business in Ambon City has been carried out to analyze investment feasibility and determine investment alternatives. The investment feasibility analysis method uses investment criteria namely Net Present Value (NPV), Net B/C Ratio, Gross B/C Ratio, Internal Rate of Return (IRR), Payback Period (PP), and Break Even Point (BEP) and determination of investment alternatives with the Analitycal Hierarchy Process (AHP) method. The results of the investment feasibility analysis of 7 types of pelagic fishing businesses in Ambon City, stated that all of them are worth invested. Analysis of investment alternatives with AHP based on investment criteria, determines that investors are best invest in the pelagic capture fisheries business in Ambon City with huhate (pole and line) with a CR value of 0.244 and purse seine with a CR value of 0.205.

KELAYAKAN USAHA NELAYAN PANCING TUNA DI JAZIRAH LEIHITU Lolita Tuhumena; Agustinus Tupamahu; Leopold Arthur Tomasila
PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Vol 4 No 2 (2020): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/papalele.2020.4.2.80

Tuna fishing activities using troll line tool is an optional activity that has been occupied by the community in Peninsula Leihitu. The activities have been occupied since hereditary and their life depends on fishery resources. In reality, most of coastal communities are still living below the poverty line. The aim of this research is (1) to analyze the thecnical, economic, social and institutional condition of tuna fishing fisherman, (2) to analyze the income level and the feasibility of fishing business in Ureng, Assilulu and Larike (Dusun Lai) of Central Maluku Regency. The used research methods include statistical descriptive analysis, income analysis, investment criteria analysis. The study was conducted for 6 months from October 2017-March 2018. Data required in the study consists of primary data and secondary data. Sampling is done purposively of 55 fishermen (30%) from total population of tuna fishermen line which is still active doing fishing activity. Based on the results of research income analysis of this business make a profit. The result of analysis calculation of investment criteria obtained value NPV>1, Net B/C>1 and IRR> discount rate, indicating that tuna business in Ureng, Assilulu and larike (Dusun Lai) is a well run.

RANTAI PASOK IKAN LAYANG (Decapterus spp) DI KOTA AMBON Bethsy Leiwakabessy; Agustinus Tupamahu; Friesland Tuapetel
PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Vol 5 No 1 (2021): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/papalele.2021.5.1.28

Marine fish supply chain is an integrated process that combines production until shipping, as well efforts to cut coasts through shipping so as to provide consumers with good service. Eriâ€™s fish landing center is one of the contributors to the stock availability of layang fish in the Ambon. The purpose of the research is to analyze the supply chain layang fish and the level of efficiency. Data were collected by purposive sampling with primary and secondary data from September-December 2019. The results of the study obtained three supply chains with four actors involved in it. Strategies to reduce margins and shorren supply chains by involving key players at high prices, namely papalele and the government at low prices, It is hoped that this alternative is one of the supporting the national fish barn.

Co-Authors Abdul F Rahawarin Ailatat, Kautsar Albert Ch Nanlohy Ariel J.O. Tethool Arlisa P. Sihombing Barbara G. Hutubessy Barbara Grace Hutubessy Beatrix R Rananmasse Bethsy Leiwakabessy Ch Nanlohy, Albert D. D.P Matrutty D.Silooy, Frentje Donald Noija, Donald F Silooy F. D Silooy Fahri Aulia Fella Gaspersz Filkha A. Makatita Frentje D. Silooy Friesland Tuapetel G Hutubessy, Barbara Hansje Matakupan Hansje Matakupan Haruna Haruna Haruna, Haruna Hehanussa, Kedswin Gerson Hutubessy, Barbara G J B Pailin J Hiariey J. B. Paillin Jacobus Latumeten Johanis Hiariey Juliana Tuhumury Leopold Arthur Tomasila Litiloli, Halik Lolita Tuhumena M. Aprillia, Reskyta Matrutty, D. D.P Mulyono S. Baskoro Mulyono S. Baskoro Nanlohy, Albert Ch O. T. S Ongkers Ongkers, O. T. S Ongkers, O.T. S PMatrutty, D.D. R H S Tawari R Rananmasse, Beatrix Radjak, Syarif Abdul Reskyta Maharani Aprillia Richard Benny Luhulima Robinson Wenno, Max Rumbouw, Burhanudin Ruslan Husen Saban Tawari S Siaheinenia S. R. Siahainenia Sahilatua, Jozef M Salma Salma Sarbunan, Maria Selfi Sangadji Selfi Sangadji Selfi Sangadji Siahanenia, Stany Rachel Silooy, Frentje D. Simon Tubalawony Siringoringo, Ricardo Stany R Siahainenia Syarif Abdul Radjak Tomasila, Leopold A Tuapetel, Friesland

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