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All Journal Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut JURNAL ILMIAH PLATAX JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Journal of Applied Science, Engineering, Technology, and Education
Lefrand Manoppo
Program Studi Pemanfaatan Sumberdaya Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Other

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Journal : JURNAL ILMIAH PLATAX

 1 
Community Structure And Attraction Of Reef Fish Associated With Artificial Reef In The Tahuna Bay Makawaehe, Wenseslaus Fransiscus; Kusen, Janny D.; Manoppo, Lefrand; Bataragoa, Nego E.; Sambali, Haryani; Sumilat, Deiske A.; Mantiri, Rose O. S. E.
Jurnal Ilmiah Platax Vol. 9 No. 2 (2021): ISSUE JULY-DECEMBER 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v9i2.34761

Abstract

 Community structure and interest of coral fish associated with artificial reefs in The Bay of Tahuna Sangihe Islands Regency is carried out in relation to increased coral fish production in Tahuna Bay. In addition to sandy waters and seagrass so that environmental engineering is pursued with artificial reefs. Artificial reefs are deployed in 5 locations with a depth of about 8 and underwater observations are carried out in data retrieval using the Underwater Visual Census (UVC) method. The data is processed to get a profile of the community structure of coral fish that can be associated with artificial reefs. The composition of coral fish species consists of target fish 9 families; 14 species, major fish 6 families; 7 species and fish indicator 1 family; 1 species. Indicator fish are generally eaters of the ends of young branch corals, branch corals have not grown in artificial reef structures. The diversity index (H') of the moderate category (+2.5) with a high, stable community, evenness (E) level or classified as a relatively high, uniformity (S) high. A low dominance index (C) indicates no species dominates. Mann-Whitney analysis about the level of fish interest to artificial reefs structure both in morning and evening showed no significant difference, while the highest acquisition of Important Values Indices of coral fish in the morning and evening, is Dascyllus trimaculatus by + 73,15. Generally, artificial reef indicates that the coral fish community was maximum developed yet, it was suspected that the coral fish community is still in the stage of adjustment or adaptation to the new environmental structure.Keywords: Community Structure; Artificial Reef; Associate Fishes; gulf TahunaAbstrakStruktur komunitas dan ketertarikan ikan karang yang  berasosiasi dengan terumbu buatan di Teluk Tahuna Kabupaten Kepulauan Sangihe dilakukan dalam kaitan dengan peningkatan produksi ikan karang di Teluk Tahuna. Selain karena perairan berpasir dan lamun sehingga diupayakan suatu rekayasa lingkungan dengan penempatan terumbu buatan. Terumbu buatan diletakkan (deploy) di 5 lokasi dengan kedalaman sekitar 8 dan dilakukan pengamatan bawah air dan pengambilan data menggunakan metode Underwater Visual Census (UVC). Data diolah  untuk mendapatkan profil struktur komunitas ikan-ikan karang yang dapat berasosiasi dengan terumbu buatan. Komposisi jenis ikan karang terdiri dari ikan target 9 family; 14 spesies, ikan mayor 6 family; 7 spesies dan ikan indikator 1 family; 1 spesies. Ikan indikator yang umumnya pemakan ujung karang cabang muda, karang cabang belum bertumbuh di struktur terumbu buatan. Indeks keanekaragaman (H’) kategori sedang (+ 2,5) dengan kemerataan (E) tergolong tinggi, komunitas stabil, keseragaman (S) tinggi. Indeks dominansi (C) rendah mengindikasikan tidak ada spesies mendominasi. Hasil Analisis Mann-Whitney terhadap tingkat ketertarikan ikan terhadap terumbu buatan baik pagi dan sore hari menunjukkan tidak ada perbedaan yang nyata artinya terumbu buatan mampu menarik ikan karang untuk berlindung dan mencari makan, sedangkan perolehan tertinggi Index Nilai Penting ikan karang saat pagi dan sore hari yaitu Dascyllus trimaculatus sebesar 72.04% dan 74.27% Secara umum menunjukkan terumbu buatan belum berkembang maksimal, di duga komunitas Ikan karang masih dalam tahap penyesuaian atau adaptasi dengan struktur terumbu buatan di lingkungan yang baru.Kata kunci: struktur komunitas; terumbu buatan; ikan asosiasi; teluk tahuna
Length Weight Relationship of Bigeye Scad (Selar crumenophthalmus) Catch by Purse Seine in Manado Bay Makarondong, Geral Manuel; Sitanggang, Effendi P.; Labaro, Ivor L.; Luasunaung, Alfret; Manoppo, Lefrand; Pangalila, Fransisco P. T.; Thamin, Arman
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.v10i1.39718

Abstract

The intensity of the catch of bigeye scad (Selar crumenophthalmus), is expected to cause problems in the availability of these fish resources. The purpose of this research is to analyze the Length-weight relationship of Bigeye scad caught by purse seine in Manado Bay. as well as to evaluate the results of the analysis of the Length-weight relationship and the catchment feasibility of the catch to support the sustainability of the potential of bigeye scad resources. The method used in this study is a quantitative method. conducted at Tumumpa Manado Coastal Fisheries Port, using fork length measurement data (FL) and weight of bigeye scad taken by the author under the guidance of lecturers in May 2021 and November 2021. Length-weight relationship of bigeye scad caught in May 2021 follows the equation W = 0,0249 L2.8057 with K = 1.01 and in November 2021 W = 0,0207 L2.9151. The type of bigeye scad in both seasons is categorized as negative allometric. This fish is categorized as unfit to catch (Lc < Lm). The structure of the catch in May 2021 obtained an average length of 10.26 ± 0.26 cm and an average weight of 18.03 ± 1.51 g where 51% were caught at a size of 9.8-10.8 cm and 46% had a weight of 11.0-16.0 g. while in November 2021 the average length was 10.90 ± 0.28 cm and the average weight was 22.53 ± 1.76 g where 50% were caught at a size of 10.0-11.0 cm and 31% g weight 21.0-26.0 g.Keywords: Bigeye Scad; Length Weight Relationship; Decent Catch; Purse Sein; Manado BayAbstrakIkan Selar bentong memiliki cita rasa enak, disukai masyarakat, dan harganya pun murah. Intensitas ketertangkapan jenis ikan ini, diduga kelak akan menimbulkan masalah ketersediaan sumberdaya ikan ini. Tujuan penelitian ini menganalisis hubungan panjang berat ikan selar bentong hasil tangkapan kapal pukat cincin (purse seiners) di Teluk Manado, serta Mengevaluasi hasil analisis hubungan panjang berat ikan selar bentong dengan kelayakan tangkap hasil tangkapan untuk menopang keberlanjutan potensi sumberdaya ikan selar bentong ini. Metode yang digunakan pada penelitian ini yaitu metode kuantitatif, dilakukan di Pelabuhan Perikanan Pantai (PPP) Tumumpa Manado, dengan menggunakan data ukuran panjang cagak (fork length, FL) dan berat ikan selar bentong yang diambil oleh penulis di bawah bimbingan dosen pada Mei 2021 (musim Pancaroba I) dan November 2021 (musim Pancaroba II) yang tertangkap purse seiners di Teluk Manado. Hubungan panjang berat ikan selar bentong yang tertangkap pada Mei 2021 mengikuti persamaan W = 0,0249 L2.8057 dengan K = 1.01 dan pada November 2021 W = 0,0207 L2.9151. Tipe pertumbuhan ikan selar bentong pada kedua musim tersebut terkategori alometrik negatif (b < 3), ikan ini terkategori tidak layak tangkap (Lc < Lm). Struktur hasil tangkapan pada Mei 2021 diperoleh panjang rerata 10.26 ± 0.26 cm dan berat rerata 18.03 ± 1.51 g, di mana 51% tertangkap pada ukuran 9.8 - 10.8 cm dan 46% memiliki berat 11.0-16.0 g, sementara pada November 2021 panjang rerata 10.90 ± 0.28 cm dan berat rerata 22.53 ± 1.76 g, di mana 50% tertangkap pada ukuran 10.0-11.0 cm dan 31% memiliki berat 21.0-26.0 g.  Kata Kunci: Selar Bentong; Hubungan Berat Panjang; Kelayakan Tangkap; Pukat Cincin; Teluk Manado
The Effect of Bait Type on Total Catch of Skipjack Tuna (Katsuwonus Pelamis) by Using Hand Line Larengka, Falenscya; Manoppo, Lefrand; Manu, Lusia; Sitanggang, Effendi P.; Luasunaung, Alfred; Kayadoe, Mariana E.
Jurnal Ilmiah Platax Vol. 10 No. 2 (2022): ISSUE JULY-DECEMBER 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i2.41949

Abstract

A hand line is one type of fishing gear that is often used by traditional fishermen to catch fish. Hand lines are categorized as active fishing gear and are also environmentally friendly. The operation of the equipment is relatively simple, it does not use a lot of auxiliary equipment such as fishing trawls and ring trawls.  This research was conducted in March and April 2022 in the Alo village, District Rainis, Talaud Islands Regency. The purpose of this study was to determine the best type of bait for catching skipjack tuna (Katsuwonus pelamis) with hand lines and to identify other types of fish caught. The method used in this research is a descriptive and participatory method, namely collecting data on catches in the fishing ground. Data analysis used a Randomized Block Design. The three types of bait used are artificial bait (silk), live fish bait, and chicken feathers. During this research, totally caught as many as 57, that is skipjack tuna (Katsuwonus pelamis) 31 (54.39%), mackerel tuna (Euthynnus affinis) 17  (29.82%), and mahi-mahi (Coryphaena hippurus) 9 (15.79). Based on the data analysis, the treatment of the type of hand line bait did not affect to catch.Keywords: skipjack; hand line; bait; catch. Abstrak        Pancing ulur merupakan salah satu jenis alat penangkapan ikan yang sering digunakan oleh nelayan tradisional untuk menangkap ikan di laut dan termasuk alat penangkapan ikan yang aktif dan juga ramah lingkungan. Penelitian ini dilakukan pada Maret dan April 2022 di desa  Alo, Kecamatan Rainis, Kabupaten Kepulauan Talaud. Tujuan penelitian adalah mengetahui jenis umpan yang terbaik untuk menangkap ikan cakalang (Katsuwonus pelamis) dengan pancing ulur dan mengetahui jenis ikan lainnya yang tertangkap.  Metode yang digunakan adalah metode deskriptif dan partisipatif, yaitu pengambilan data hasil tangkapan di daerah penangkapan (fishing ground). Analisis data menggunakan Rancangan Acak Kelompok.Tiga jenis umpan yang digunakan adalah umpan tiruan (kain sutera), umpan ikan hidup dan bulu ayam. Selama penelitian, total ikan yang tertangkap sebanyak 57 ekor ikan yang terdiri dari cakalang (Katsuwonus pelamis) sebanyak 31 ekor (54,39%), tongkol (Euthynnus affinis) sebanyak 17 ekor (29,82%) dan lemadang (Coryphaena hippurus) sebanyak 9 ekor (15,79%). Berdasarkan analisis data, perlakuan jenis umpan pancing ulur tidak berpengaruh terhadap hasil tangkapan.Kata kunci : cakalang, pancing ulur, umpan dan hasil tangkapan.
Study of the Use of Seagrass Bait on Bebihe Catches in the waters of the Sea Beg, South Central Tabukan District, Sangihe Islands Regency Larungkondo, Jerialdy; Labaro, Ivor Lembondorong; Pangalila, Fransisco P.T.; Budiman, Johnny; Manoppo, Lefrand; Silooy, Fanny
Jurnal Ilmiah Platax Vol. 10 No. 2 (2022): ISSUE JULY-DECEMBER 2022
Publisher : Sam Ratulangi University

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

Abstract

AbstractBubu fisheries have developed well in all Indonesian waters, especially in coastal areas that have coral reef and seagrass habitats. Generally, the commodities targeted for fishing are types of reef fish and seagrass beds that have a high selling value, such as snapper, grouper, baronang, yellowtail, lobster, octopus, and others. Bubu fishing gear or traps called bebihe local people are one of the fishing gear used to catch demersal fish or reef fish. The success of the bubu fishing operation is greatly influenced by the construction of the bebihe fishing gear itself and the treatment of the bait used. The use of seagrass bait, allegedly can increase the catching ability of the bebihe. However, scientific information on the use of seagrass as a bait for bebihe for fishing is not yet available. Therefore, the purpose of this study is to determine the effectiveness of seagrass baits with the comparison of kitefish in the operation of bebihe; and identify the types of fish caught.This research was carried out in the waters of Beeng Laut island, South Central Tabukan District, Sangihe Islands Regency; is based on experimental methods. Six bebihe units were operated during nine trips to collect data; where three units use seagrass bait of the type Thalassia hemprichii, and the other three units use kite fish bait; and then the catch data is analyzed by a t-test.The catch of bebihe during the study amounted to 363 heads, as many as 345 were caught with seagrass baits, and 18 were caught with kite baits. Analysis of the t-test showed that at t count = 5.480 > t table 0.05;8 = 2.306; where this explains that the use of seagrass bait on bebihe, gives a noticeablely different catch compared to kitefish bait.
Catch Per Unit Effort (Cpue) Of Purse Seine Fishery For A Period Of 5 Years At The Tumumpa Coastal Fishing Port Saragih, Mariana; Labaro, Ivor Lembondrong; Pamikiran, Revols D. Ch; Manoppo, Lefrand; Silooy, Fanny
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.43527

Abstract

This study aims to analyze the five-year development of CPUE (catch per unit effort) and to find out the fishing effort of ring seine at PPP Tumumpa and its effect on CPUE periodically. Based on the research results, the CPUE value of large pelagics has decreased every year, where the CPUE value in 2017 was 25.42%, in 2018 it was 25.08%, in 2019 it was 17.71%, in 2020 it was 17.10%. , the last in 2021 was 14.66% and for small pelagics, the CPUE value decreased, where the CPUE value in 2017 was 21.70%, in 2018 it was 17.92%, in 2019 it was 17.19%, in 2018 it was 17.19%. in 2020 is 23.13%, and the last in 2021 is 20.04%. Utilization rates in large and small pelagics are in a state of concern as CPUE decreases yearly.Keywords:  CPUE, production data, purse seine, utilization rate.AbstrakPenelitian ini bertujuan untuk menganalisis perkembangan lima tahun CPUE (catch per unit effort) dan mengetahui upaya penangkapan perikanan pukat cincin di PPP Tumumpa serta pengaruhnya terhadap CPUE secara periodik. Berdasarkan hasil penelitian nilai CPUE pelagis besar mengalami penurunan setiap tahun, dimana nilai CPUE pada tahun 2017 yaitu 25,42 %, pada tahun 2018 yaitu 25,08 %, pada tahun 2019 yaitu 17,71 %, pada tahun 2020 yaitu 17,10 %, terakhir pada tahun 2021 yaitu 14,66 % dan untuk pelagis kecil nilai CPUE mengalami penurunan, dimana nilai CPUE pada tahun 2017 yaitu 21,70 %, pada tahun 2018 yaitu 17,92 %, pada tahun 2019 yaitu 17,19 %, pada tahun 2020 yaitu 23,13 %, dan terakhir pada tahun 2021 yaitu 20,04 %. Tingkat pemanfaatan pada pelagis besar dan kecil berada dalam keadaan mengkhawatirkan karena CPUE mengalami penurunan setiap tahun.Kata Kunci: CPUE, data produksi, pukat cincin, tingkat pemanfaatan. 
Study of Welfare Level of Fisherman Community in Alo Village, Rainis District, Talaud Islands Regency Toesan, Fritwin; Manoppo, Lefrand; Kayadoe, Mariana E
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.44396

Abstract

Talaud Islands Regency is a maritime area with a sea area of around 37,800 km² (95.24%) and a land area of 1,251.02 km². The fishing community in Alo Village utilizes fishery resources as their main source of life. especially the coastal community of Alo village which is dominated by fishermen who are classified as labor fishermen or small fishermen. Fishing communities are small groups of people living in coastal areas whose main livelihood is utilizing the natural resources found in the ocean, whether in the form of fish, shrimp, seaweed, shellfish, coral reefs and other marine wealth. To determine the level of welfare of the fishing community in Alo Village. The type of research method used in this research is census research using descriptive analysis. So it can be concluded that the level of welfare of the fishing community in Alo Village, Rainis District, Talaud Islands District, with the number of respondents representing as many as 30 respondents was categorized as quite prosperous or moderate with a percentage of 66.67% and a score of 13. Keywords: Alo Village, Welfare, Income, Expenditures, education. Abstrak Kabupaten Kepulauan Talaud merupakan daerah bahari dengan luas lautnya sekitar 37.800 km² (95,24%) dan luas wilayah daratan 1.251,02 km². Masyarakat nelayan di Desa Alo memanfaatkan sumberdaya perikanan sebagai sumber kehidupan utama. khususnya masyarakat pesisir desa Alo yang di dominasi oleh nelayan yang tergolong nelayan buruh atau nelayan – nelayan kecil. Masyarakat nelayan yaitu kelompok kecil masyarakat yang tinggal di wilayah pesisir dengan mata pencaharian utama adalah memanfaatkan sumberdaya alam yang terdapat di dalam lautan, baik itu berupa ikan, udang, rumput laut, kerang- kerangan, terumbu karang dan hasil kekayaan laut lainnya. Untuk mengetahui tingkat kesejahteraan masyarakat nelayan Desa Alo. Jenis metode penelitian yang digunakan dalam penelitian ini adalah penelitian sensus dengan menggunakan analisis deskriptif. Maka dapat disimpulkan bahwa tingkat kesejahteraan masyarakat nelayan di Desa Alo Kecamatan Rainis Kebupatan Kepulauan Talaud, dengan jumlah responden yang mewakili sebanyak 30 responden dikategorikan cukup sejahtera atau sedang dengan persentase 66,67% dan nilai skor 13. Kata kunci: Desa Alo, Kesejahteraan, Pendapatan, Pengeluaran, pendidikan.
Co-Authors Adi Saputra Aglius T.R. Telleng Alfret Luasunaung Amandus Burdam Cornelius Obimaru Dasfordate, Robi Y. Deiske Adeliene Sumilat, Deiske Adeliene Dien, Heffry Veibert Dimas P. Wijaya, Dimas P. Effendi P. Sitanggang Emil Reppie Fanny Silooy Fransisco P. T. Pangalila Haryadi Wijaya Ivor L. Labaro Janny D. Kusen Janny F. Polii Jersey R. Cumentas, Jersey R. Johnny Budiman Kurniawan, Kholid Labaro, Ivor Lembondorong Labaro, Ivor Lembondrong Larengka, Falenscya Larungkondo, Jerialdy Makarondong, Geral Manuel Manahonas, Febrik Stopers Manu, Lusia Mariana E. Kayadoe Masengi, Kawilarang Warouw Alex Meta S. Sompie Modaso, Vivanda Octova Joulanda Murahman, Imam Nego E. Bataragoa, Nego E. Onthoni, Jenly G. Pamikiran, Revols D. Ch. Pangauan, Ditsen Rabuisa, Hian J. Rizald Max Rompas, Rizald Max Rose O. S. E. Mantiri, Rose O. S. E. Sambali, Haryani Saragih, Mariana Sompie, Meta Sonya Sumilat, Deiske Adeleine Syah, Bahrul Y. N. I. Thamin, Arman Toesan, Fritwin Tonny Yeheskel Napasau, Tonny Yeheskel Ucha E. Janis, Ucha E. Wahalid Najamudin, Wahalid Wenseslaus Fransiscus Makawaehe, Wenseslaus Fransiscus