Article Per Year (5 Year)
p-Index From 2021 - 2026
5.046
P-Index
This Author published in this journals
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 AQUANIPA - Jurnal Ilmu Kelautan dan Perikanan
Agustinus Tupamahu
Department Of Fisheries Resource Utilization, Faculty Of Fisheries And Marine Science, Universitas Pattimura, Ambon 97233, Indonesia
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 Social Sciences Other

Published : 41 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 41 Documents
Search

 1   2   3   4   5 
Penerapan Model Project Based Learning untuk Meningkatkan Hasil Belajar Peserta Didik (Studi PTK pada Pelajaran Matematika Materi Lingkaran) Dewi Lestari
Jurnal Pendidikan dan Konseling (JPDK) Vol. 4 No. 5 (2022): Jurnal Pendidikan dan Konseling
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v4i5.7124

Abstract

Penelitian ini bertujuan untuk menguji efektifitas Penerapan Model Project Based Learning dalam meningkatkan hasil belajar peserta didik materi lingkaran di SMP Negeri 11 Cirebon. Metode yang digunakan pada penelitian ini adalah penelitian tindakan kelas dan instrument yang digunakan berupa tes. Adapun hasil penelitiannya yaitu Penerapan model project based learning dapat meningkatkan hasil belajar peserta didik dari pada metode ceramah biasa. Hal ini terlihat dari nilai Rata-rata kelas pada tes penilaian harian pra siklus = 70,88. siklus I = 75,7. siklus II = 80. siklus III = 85.dan persentase ketuntasan belajar dari peserta didik secara perorangan pada tes harian pra siklus tuntas 55,88%. siklus I tuntas76%. Siklus II tuntas 85,3%. dan siklus III tuntas 97,1%. Penerapan model project based learning juga meningkatkan aktivitas belajar peserta didik. Ini terlihat dari hasil persentase observasi peserta didik pada pembelajaran pra siklus 57% dengan predikat cukup, siklus I 70% dengan predikat baik, siklus II 86% dengan predikat sangat baik dan siklus III 96% dengan predikat sangat baik. Kata Kunci: Lingkaran, Project Base Learning, Hasil Belajar
Study of Purse Seine Fishing Ship Trimaran Seakeeping with Axe-Bow and Without Axe-Bow Model Using Computational Fluids Dynamics Fella Gaspersz; Agustinus Tupamahu; Richard Benny Luhulima; Simon Tubalawony
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 1 (2023): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i1.47092

Abstract

Maluku waters are dominated by extreme weather conditions with wave heights of 1-5 meters. Purse seine fishingvessel is one type of fishing vessel that has very poor transverse stability. One way to improve the stability of theship is to change the shape of the monohull ship to a ship with a trimaran hull type. This research was focused onexamining the movement characteristics of purse seine fishing vessels with trimaran hull type with Axe-Bowmodification on the bow and without Axe-bow, through computational fluid dynamics. The use of Axe-bow ontrimaran is able to significantly reduce RMS Pitch, which is an average of 13.35% smaller when compared to Trimaranwithout Axe-bow. On the RMS Heave Trimaran Axe-bow can reduce an average of 5.27% if the Trimaran is withoutAxe-bow. Furthermore, the Trimaran Axe-bow is also able to reduce the RMS Roll by an average of 3.98% comparedto the Trimaran without Axe-bow. The results of this study can provide an initial description of the advantages ofusing the Axe-Bow on the Purse seine fishing trimaran ship.
Biologi Reproduksi Lalosi Merah (Pterocaeasio tile, Cuvier 1830) Hubungannya Dengan Selektivitas Jaring Insang Lingkar Haruna Haruna; Agustinus Tupamahu; Reskyta Maharani Aprillia
Jurnal Kelautan Tropis Vol 26, No 2 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i2.17457

Abstract

Intensive and massive fishing exploitation of various reef fish resources occurs in coastal areas, including the Pteriocaesio tile (dark-banded fusilier). This study was conducted due to a lack of information, including size distribution, length of first captured (Lc), length at first mature (Lm), and the selectivity of the mesh size for Pteriocaesio tile caught in the Huamual Belakang waters. The data collection was conducted from September to December 2022. The experimental fishing method was conducted by operating one unit of encircling gillnet consisting of eight panels, each consisting of four mesh net units of 1.75 inch and 2.0 inch, installed randomly. Samples of fish caught for each actual fishing were measured for total length. The reproductive aspect used 10-15% of fish samples per trip. The fish were measured for total length and body weight, and dissected to determine the sex and gonad maturity level and weight. The catches with encircling gillnets were dominated by the Caesionidae family, consisting of Pteriocaesio tile at 74.73%, Pterocaesio chrysozona at 6.80%, and caesio caerulaurea at 6.41%. The size distribution of the total length of Pteriocaesio tile was 15.0 – 27.3 cm. The average length first caught in a  1.75-inch mesh was 21.4 cm, and 22.5 cm for the 2.0-inch mesh. The length at first mature was 18.6 cm for the female, and 20.6 cm for the male. The gillnet selectivity obtained 50% chance of being caught in the mesh size of 1.75 inches was 18.8 cm, and 21.9 cm in the mesh size of 2.0 inches. The status of the resource utilization of Pteriocaesio tile was in good condition (Lc > Lm). Nevertheless, the use of the 1.75-inch mesh size indicated recruitment overfishing   Eksploitasi penangkapan terjadi secara intensif dan masif di wilayah pesisir terhadap berbagai sumberdaya ikan karang termasuk ikan Pteriocaesio tile (dark-banded fusilier). Penelitian ini dilakukan karena masih minimnya informasi meliputi; distribusi ukuran, ukuran ikan pertama kali tertangkap, ukuran ikan pertama kali matang gonad, dan selektivitas ukuran mata jaring Pteriocaesio tile yang tertangkap di perairan Huamual Belakang. Pengumpulan data dilakukan pada bulan September sampai Desember 2022. Metode experimental fishing dilakukan dengan mengoperasikan satu unit jaring insang lingkar terdiri dari 8 panel ukuran mata jaring 1,75 inci dan 2,0 inci yang dipasang secara acak. Sampel ikan hasil tangkapan setiap aktual atau trip penangkapan diukur panjang total, untuk aspek reproduksi menggunakan 10-15% sampel ikan setiap trip, ikan diukur panjang total, berat tubuh dan dibedah untuk mengetahui jenis kelamin, tingkat kematangan gonad maupun berat gonad.  Hasil tangkapan jaring insang lingkar di dominasi family Caesionidae masing-masing jenis ikan Pteriocaesio tile 74,73%, Pterocaesio chrysozona 6,80% dan Caesio caerulaurea 6,41%. Distribusi ukuran panjang total ikan Pteriocaesio tile 15,0-27,3 cm. Ukuran ikan rata-rata pertama kali tertangkap mata jaring 1,75 inci adalah  21,4 cm dan 2,0 inci adalah 22,5 cm. Ukuran pertama kali matang gonad ikan betina 18,6 cm dan jantan  20,6 cm. Selektivitas jaring diperoleh peluang tertangkap 50% mata jaring 1,75 inci adalah 18,8 cm dan 2,0 inci adalah 21,9 cm. Status pemanfaatan sumberdaya ikan P tile berada dalam kondisi baik (Lc > Lm) tetapi penggunaan mata jaring 1,75 inci terindikasi mengalami recruitment overfishing.
PERBEDAAN AKTUAL LAJU TANGKAP OPERASI PENANGKAPAN SKIPJACK POLE AND LINE DI RUMPON DAN GEROMBOLAN IKAN Fahri Aulia; Agustinus Tupamahu; Stany Rachel Siahainenia
Pattimura Proceeding 2020: PROSIDING SEMINAR NASIONAL KELAUTAN DAN PERIKANAN 2019
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/PattimuraSci.2020.SNPK19.172-181

Abstract

Pulau Ambon dan sekitarnya merupakan salah satu pusat kegiatan penangkapan ikan cakalang terutama dengan alat tangkap skipjack pole and line yang mengandalkan alat bantu rumpon dalam operasi penangkapannya. Penelitian ini bertujuan untuk menganalisis aktual laju tangkap skipjack pole and line yang beroperasi di rumpon dan di gerombolan ikan dan menganalisis perbedaan antara nilai aktual laju tangkap skipjack pole and line yang beroperasi di rumpon dan menemukan gerombolan ikan. Hasil penelitian menunjukkan bahwa rata-rata laju tangkap pada operasi penangkapan di rumpon adalah 0,65 individu/menit/orang, sedangkan rata-rata laju tangkap di gerombolan ikan adalah 2,67 individu/menit/orang. Hasil uji-t menunjukkan bahwa terdapat perbedaan sangat nyata antara laju tangkap pada operasi penangkapan di rumpon dan gerombolan ikan (t hit> α 0,05. df : 83).
PEMBENTUKAN KELOMPOK USAHA BERSAMA DI DESA HAYA KABUPATEN MALUKU TENGAH DALAM UPAYA MENYELESAIKAN PERMASALAHAN PERIKANAN PANCING ULUR TUNA Haruna Haruna; F. D Silooy; R. H. S Tawari; Agustinus Tupamahu; S. R. Siahainenia; J. B. Paillin; Selfi Sangadji
Jurnal Abdi Insani Vol 10 No 3 (2023): Jurnal Abdi Insani
Publisher : Universitas Mataram

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

Abstract

Poverty among fishermen is a complex problem and often occurs in many coastal areas and small islands. Fishermen depend heavily on fish catches for their income, however, they are very vulnerable to seasonal fluctuations, climate change, limited infrastructure, access to capital, social security and price competition. The factors faced by fishermen cause unstable economic conditions and make them vulnerable to poverty. This condition is also experienced by tuna handline fishermen in Haya Village, Central Maluku Regency. Community Service Activities (PKM) aim to identify problems with small-scale tuna handline fisheries and assist in the institutional formation of a Joint Business Group (KUB) for tuna handline fisheries in Haya Village. Implementation of activities begins with training, Participatory Rural Appraisal (PRA) and assistance in establishing KUB. This activity is in the form of a Forum Group Discussion (FGD) with partners and other stakeholders. Mitra is a small-scale tuna hand-line fisherman who has experience and is of productive age. The results of identifying partner and stakeholder problems through the Focus Group Discussion (FGD) method are decreasing fish resources, weak availability of facilities and infrastructure, low technology, weak institutions, and not yet optimal policy implementation. In this PKM activity, fishing operation management material is presented as material for gaining knowledge, experience and real conditions of fishermen management in handline fishing activities. All participants were very enthusiastic about taking part in this activity by providing feedback and suggestions for developing their fisheries business in the future. The implementation of the formation of Joint Business Groups (KUB) is expected to be able to overcome fishermen's problems, provide motivation, and be innovative and collaborative in groups. PKM activities were carried out well, apart from that, partners had increased capability, cooperation, communication and commitment within the group for fisheries business development.
Supperior Fishing Gear for Coral Reef Fishes in Western Seram Regency Tupamahu, Agustinus; Haruna, Haruna; G Hutubessy, Barbara; R Siahainenia, Stany; Ch Nanlohy, Albert; Hehanusa, Kedswin
Agrikan Jurnal Agribisnis Perikanan Vol. 14 No. 1 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

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

Abstract

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

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

Abstract

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.
Analysis Financial Fisheries Business of Mackerel Scad (Decapterus macarellus) in the Southern Waters of Ambon Island D.Silooy, Frentje; Tupamahu, Agustinus; Ongkers, O.T. S; PMatrutty, D.D.
Agrikan Jurnal Agribisnis Perikanan Vol. 13 No. 2 (2020): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

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

Abstract

This study aims to determine the technical aspects of fishing with a mini purse seine and 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 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.
Effect of Twine Thickness on The Size Selectivity of The Dominant Catch of Bottom Gill Nets in Inner Ambon Bay R Rananmasse, Beatrix; Tupamahu, Agustinus; Haruna, Haruna
Agrikan Jurnal Agribisnis Perikanan Vol. 15 No. 1 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1685.929 KB) | DOI: 10.52046/agrikan.v15i1.1015

Abstract

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.
A Selectivity Evaluation on Mackerel (Rastrelliger kanagurta) Encircling Gillnet in Coastal Water of Ambon Island Sangadji, Selfi; Haruna, Haruna; Tupamahu, Agustinus; Noija, Donald
Agrikan Jurnal Agribisnis Perikanan Vol. 15 No. 2 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v15i2.1241

Abstract

This research aims to analyze selectivity to mackerel (Rastrelliger kanagurta) encricling gill net in costal area of Ambon Island. Fish sample was taken by following the whole series of capture fisheries operation by fishermen at two units of the encircling gillnet using both 2.0 and 2.5 inch mesh size. Holt method was used to analyze and predict selectivity of the mesh size operated by fishermen towards total length of mackerel. Dominant composition of the capture fisheries was in mackerel at 69.29% of seven fish species. Distribution of total length at mesh size 2.0 inch at the middle size of 21.5 cm - 25.5 cm and 2.5 inch at the middle size of 22.5 cm - 31.5 cm. Mesh length tended to be normally distributed, while length proportion for large size was higher in mesh size at 2.5 inch. For capture possibility at proportion 50% and optimum (100%) at mesh size at 2.0 inch was 19.9 cm and 21.9 cm, while mesh size at 2.5 inch was 25.4 cm and 27.4 cm. It is recommended to use minimum mesh size at 2.5 inch towards the resource of mackerel in coastal area of Ambon Island. Distribution of total length at mesh size 2.0 inch at the middle size of 21.5 cm - 25.5 cm and 2.5 inch at the middle size of 22.5 cm - 31.5 cm. Mesh length tended to be normally distributed, while length proportion for large size was higher in mesh size at 2.5 inch.
Co-Authors Abdul F Rahawarin 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, 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 Stany R Siahainenia Stany R. Siahainenia Syarif Abdul Radjak Tomasila, Leopold A Tuapetel, Friesland Yohanes D.B.R. Minggo