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All Journal Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Ilmu dan Teknologi Kelautan Tropis Maspari Journal Jurnal Perikanan dan Kelautan Maspari Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Ekonomi Modernisasi Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Kelautan Tropis Jurnal Akuatika Indonesia Jurnal Perikanan Universitas Gadjah Mada Dinamika Maritim Jurnal Kebijakan Perikanan Indonesia Minda Baharu Unri Conference Series: Community Engagement Journal of Coastal and Ocean Sciences Dinamika Lingkungan Indonesia CANANG: Jurnal Pengabdian Masyarakat Manfish Journal Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan South East Asian Aquaculture Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan South East Asian Water Resources Managements Jurnal Perikanan dan Kelautan
Romie Jhonnerie
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Journal : Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan

 1 
Percentage of the bycatch and discard composition in artisanal bottom trap fisheries Nofrizal Nofrizal; Afni Afriani; Deni Efizon; Romie Jhonnerie
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (721.186 KB) | DOI: 10.13170/depik.11.2.26106

Abstract

Data on bycatch in the fishing effort required to manage fisheries resources. Unfortunately, the data on small-scale and traditional fisheries is still lacking. It makes it challenging to make fishing policies and regulations. Survey activities and experimental fishing were conducted to determine and analyze the composition of the main catch, bycatch and discarded by the local fisher's bottom traps in Sibolga, North Sumatra, Indonesia. Five units of the trap with a size of 150 cm x 100 cm x 50 cm (length x width x height) were used to collect fish data. These five trap units operated in the fishing ground, where local fishers usually operate their fishing gear. The fishing operation carried out within 1 mile of the coastline with water depths ranging from 7-10 meters. The duration of trap setting around 5-7 days for each fishing operation. A motorboat operated with a weight of 5.8 GT. The results showed that the total bottom trap catch consisted of 329 individuals with a total weight of 151.4 kg and 12 demersal fish species. The main catch was 148 individuals (88.9 kg), or 44.7% of the total catch during the experiment i.e. Chepalapholis urodeta, Ephinephelus areolatus, Epinephelus chlorostigma, Plectropomus leopardus, Ephinepelus coioides, Lates calcarifer, Lutjanus malabaricus, and Lutjanus erytropterus. The bycatch was 151 individuals (57.1 kg) or 46.1% i.e. Lethrinus obsoletus, Lutjanus ehrenbergii, Acanthurus auranticavus, Platax teira, Nemipterus japonicus, Scarus rivulatus, Lutjanus johnii, Siganus canaliculatus, Caesio cuning, and Taeniura lymma.While the discarded catch amounted to 30 individuals (5.4 kg) or 9.2% i.e. Naso brevirostris, Diodon holocanthus, and Diadema setosum. The bycatch utilization obtained by fishers was 83.4%, and the unutilized was 16.6%. The percentage of fish sizes worthy for consumption was 135 individuals (74.6%), and the size unworthy for consumption was 46 individuals (25.4%).Keywords:Fishing groundFishing gear Fishing operation Main catchTrap
Modification of togok (tidal trap) for reducing bycatch by using BRD vent Nofrizal Nofrizal; Muhamad Mauliddin; Romie Jhonnerie
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.712 KB) | DOI: 10.13170/depik.11.3.26067

Abstract

One effort to reduce bycatch in togok is to modify the togok by creating a vent to reduce bycatch by BRD. The BRD installed on the togok was a rope BRD vent made of Polyethelene (PE) with a diameter of 2 mm. The rope BRD vent is attached to the top of the cod-end as an escape vent 25 x 50 cm. The escape vent and the stash cod-end are covered with a net with a mesh size of 5 mm. The cover net aims to collect data on fish catches that pass through the rope BRD vent. The percentage of fish that pass through the rope BRD vent can be calculated, and measure the size of the fish caught in the cod-end and covered as an indicator of the effectiveness of the rope BRD vent on togok. This experiment was carried out for 20 days of fishing operation and 40 hauls. The results showed that the catch of togok without rope BRD vent (conventional) and togok with modified rope BRD vent were different (p 0.05), where the catch of conventional togok was 468.34 kg, and the catch of modified togok was 305.235 kg. The fishing catches in the cod end and cover sections the most are bycatch with 51% and 54% of the percentage of the total catch, and the least in the cod end is the discarded catch, which is 21% of the percentage of the total catch and on the cover is the main catch (main catch) with 19% of the percentage of the total catch.The average size of the catch of togok species of fish is there are many immature sizes, and the average size of the catch of togok species of shrimp is there are in maturity size.Keywords:BycatchBycatch excluder device (BRD)DiscardMain catch 
Modification of togok (tidal trap) for reducing bycatch by using BRD vent Nofrizal Nofrizal; Muhamad Mauliddin; Romie Jhonnerie
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.26067

Abstract

One effort to reduce bycatch in togok is to modify the togok by creating a vent to reduce bycatch by BRD. The BRD installed on the togok was a rope BRD vent made of Polyethelene (PE) with a diameter of 2 mm. The rope BRD vent is attached to the top of the cod-end as an escape vent 25 x 50 cm. The escape vent and the stash cod-end are covered with a net with a mesh size of 5 mm. The cover net aims to collect data on fish catches that pass through the rope BRD vent. The percentage of fish that pass through the rope BRD vent can be calculated, and measure the size of the fish caught in the cod-end and covered as an indicator of the effectiveness of the rope BRD vent on togok. This experiment was carried out for 20 days of fishing operation and 40 hauls. The results showed that the catch of togok without rope BRD vent (conventional) and togok with modified rope BRD vent were different (p 0.05), where the catch of conventional togok was 468.34 kg, and the catch of modified togok was 305.235 kg. The fishing catches in the cod end and cover sections the most are bycatch with 51% and 54% of the percentage of the total catch, and the least in the cod end is the discarded catch, which is 21% of the percentage of the total catch and on the cover is the main catch (main catch) with 19% of the percentage of the total catch.The average size of the catch of togok species of fish is there are many immature sizes, and the average size of the catch of togok species of shrimp is there are in maturity size.Keywords:BycatchBycatch excluder device (BRD)DiscardMain catch 
Percentage of the bycatch and discard composition in artisanal bottom trap fisheries Nofrizal Nofrizal; Afni Afriani; Deni Efizon; Romie Jhonnerie
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.26106

Abstract

Data on bycatch in the fishing effort required to manage fisheries resources. Unfortunately, the data on small-scale and traditional fisheries is still lacking. It makes it challenging to make fishing policies and regulations. Survey activities and experimental fishing were conducted to determine and analyze the composition of the main catch, bycatch and discarded by the local fisher's bottom traps in Sibolga, North Sumatra, Indonesia. Five units of the trap with a size of 150 cm x 100 cm x 50 cm (length x width x height) were used to collect fish data. These five trap units operated in the fishing ground, where local fishers usually operate their fishing gear. The fishing operation carried out within 1 mile of the coastline with water depths ranging from 7-10 meters. The duration of trap setting around 5-7 days for each fishing operation. A motorboat operated with a weight of 5.8 GT. The results showed that the total bottom trap catch consisted of 329 individuals with a total weight of 151.4 kg and 12 demersal fish species. The main catch was 148 individuals (88.9 kg), or 44.7% of the total catch during the experiment i.e. Chepalapholis urodeta, Ephinephelus areolatus, Epinephelus chlorostigma, Plectropomus leopardus, Ephinepelus coioides, Lates calcarifer, Lutjanus malabaricus, and Lutjanus erytropterus. The bycatch was 151 individuals (57.1 kg) or 46.1% i.e. Lethrinus obsoletus, Lutjanus ehrenbergii, Acanthurus auranticavus, Platax teira, Nemipterus japonicus, Scarus rivulatus, Lutjanus johnii, Siganus canaliculatus, Caesio cuning, and Taeniura lymma.While the discarded catch amounted to 30 individuals (5.4 kg) or 9.2% i.e. Naso brevirostris, Diodon holocanthus, and Diadema setosum. The bycatch utilization obtained by fishers was 83.4%, and the unutilized was 16.6%. The percentage of fish sizes worthy for consumption was 135 individuals (74.6%), and the size unworthy for consumption was 46 individuals (25.4%).Keywords:Fishing groundFishing gear Fishing operation Main catchTrap
Co-Authors . Alfin . Juliana Adriman Adriman Adriman, Adriman afni afriani Ahmad Muhammad Ahmad Nawawi Alit Hindri Yani Amraini Fitri Andri Hendrizal Aras Mulyadi Audina Agustin Syam Bisman Nababan Budijono, Budijono Deni Efizon Desi Rahmadani Siagian Destuanti, Nia Deswina Deswina Deswina, Deswina Eddiwan Kamaruddin Efriyeldi, Efriyeldi Eko Prianto, Eko Ester Restiana Endang Gelis Farhan Ramdhani Fatmawati, Riska Fauzan Ramadan Fitri, Amraini Ghifari, Dwika Hesniati Hesniati Idwar, Idwar Irfan Zidni Irwan Limbong Isma Mulyani Krisdayana, Krisdayana LILIK BUDIPRASETYO Marta, Sonia Mauliddin, Muhammad Miswadi Miswadi Miswadi Miswadi Miswadi Miswadi Miswadi Miswadi Miswadi Muhamad Mauliddin Muhamad Mauliddin Muhammad Fauzi Muhammad Mauliddin Muhammad Natsir Kholis Musrifin Musrifin NOFRIZA, NOFRIZA Nofrizal , Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Nofrizal Novrianto, Eko Nur El Fajri Nuraini El Fajri Nurul Qomar Pipit Yerma Yernis Rahmatdillah Rahmatdillah Ramadhan, Fauzan Ramses Firdaus, Ramses Ramses Ramses Rasoel Hamidy Rina D’rita Sibagariang Rizky Janatul Magwa Robin Robin Rusliadi Rusliadi Sam Wouthuyzen Septy Heltria Siswanta Kaban Sofian, Alifa Khansa Solekha Aprianti Soni Rohima Daulay Sutikno, Sigit syaifuddin syaifuddin SYAIFUL BAHRI T. Ersti Yulika Sari Thamrin Thamrin Usman Usman Vincentius P Siregar Vini Volcherina Darlis Widhiastika, Dhita Windarti Windarti Yossi Oktorini Yudho Harjoyudanto Yuliati Yuliati Zuchra Helwani Zuli Laili Isnaini