Decline in oyster populations in traditional fishing grounds; is habitat damage by static fishing gear a contributory factor in ecosystem degradation?

Langkumbe River is located in West Kulisusu District and has long been used by the community for various daily activities. One of the resources often used by the people around Langkumbe River is pokea clams. The aim of this study was to determine the production and biomass of pokea clams (B. violacea) in Langkumbe River Waters of North Buton Regency from August to October 2017. The sampling method used was swept area method using a traditional fishing gear "Tangge" (fishing gear). The samples were measured for the length, width and thickness. The total weight was measured with the clam/total mass (MT) and the weight of the meat. The samples were dried using an oven for 24 hours at 70 °C to obtain the shell-free dry mass (SFDW). Data were analyzed using standard formulas. The total sample obtained was 1.307 individuals. The highest density of pokea clam was found in August at 596.8 ind/m². Annual production of pokea clam (B. violacea) in Langkumbe River with a total annual production of 1,107.33 gSFDW/m2/year. The highest and lowest production are 297.09 gSFDW/m²/year at size 2.19-2.54cm and -0.16 gSFDW /m²/year at size 4.70-5.05cm, respectively. The total population biomass was 528.03 gSFDW/m2 with the highest biomass 171.72 gSFDW/m²/year at size 2.55-2.90 cm and the lowest was 1.40 gSFDW /m²/year at size 4.70-5.05 cm, so that the recovery rate (P/B ratio) was 2.1 gSFDW/m2/year.

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An alternative to modern salmon fishing gear

Fisheries ◽

10.37663/0131-6184-2021-1-99-102 ◽

2021 ◽

Vol 2021 (1) ◽

pp. 99-102

Author(s):

Oleg Telyatnik

Keyword(s):

Work Experience ◽

Fishing Gear ◽

New Developments ◽

Traditional Fishing

Based on the study of work experience in the areas of p.o. Kamchatka in the work proposed alternative fishing tools for salmon fishing. Under the alternative in the work are called fishing tools that are not widely used or are new developments. The use of such fishing gear will make it possible to catch elk in areas where traditional fishing is not currently conducted. However, this is important due to the approach of salmonids, in 2020, to traditional fishing areas.

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Bioecology of Manggabai Fish (Glossogobius giuris) in Limboto Lake

JURNAL SUMBERDAYA AKUATIK INDOPASIFIK ◽

10.46252/jsai-fpik-unipa.2020.vol.4.no.2.86 ◽

2020 ◽

Vol 4 (2) ◽

pp. 89

Author(s):

Dewi Nuryanti Fazrin ◽

Hasim Hasim ◽

Juliana Juliana

Keyword(s):

Fishing Gear ◽

Residential Areas ◽

Chemical Parameters ◽

Fish Traps ◽

Physical And Chemical Parameters ◽

Glossogobius Giuris ◽

Net Cages ◽

Physical And Chemical ◽

Traditional Fishing ◽

The Relationship

The purpose of this study was to determine the relationship between the length and weight of Manggabai fish (Glossogobius giuris) and to know the relationship between the presence of Manggabai fish (Glossogobius giuris) and water quality in Limboto Lake. This research was conducted in February 2019, located in the waters of Lake Limboto, Gorontalo Province. The method used in determining the location of sampling is Purposive Sampling. Fish sampling is determined by considering fishing locations, litoral areas, the presence of residential areas, agricultural and plantation areas, the existence of floating net cages and in the middle of the lake. The study was conducted at 20 observation stations using fish traps in the form of bamboo and used motorcycle tires that have been modified and become traditional fishing gear. The results showed that the physical and chemical parameters in Lake Limboto and showed temperature values ranged from 29.77 to 31.630C, dissolved oxygen levels ranged from 2.1 to 5.48 ppm, pH ranged from 7.09 to 8.94, TDS ranging from 0.251 to 0.369, Nitrite Levels 0.04-0.08 ppm, Nitrate Levels 1.2-4.7 ppm, BOD ranges from 2.5-57 ppm and phosphate levels 0.1-1.14 ppm. The relationship between length and body weight of fish are allometric, where W = 0.8769 L10,023 and constant b (10,023)> 3.

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Pengaruh umpan buatan warna merah dan kuning terhadap hasil tangkapan pancing pompa di perairan pantai Desa Bajo, Kabupaten Minahasa Selatan

JURNAL ILMU DAN TEKNOLOGI PERIKANAN TANGKAP ◽

10.35800/jitpt.2.1.2015.8296 ◽

2015 ◽

Vol 2 (1) ◽

Author(s):

Hermanus B. Usili ◽

Ivor L. Labaro ◽

Mariana E. Kayadoe

Keyword(s):

Reef Fishes ◽

Experimental Methods ◽

Demersal Fish ◽

Fishing Gear ◽

Traditional Fishing ◽

Demersal Fishes ◽

Parrot Fish

ABSTRACT Pump handline is a traditional fishing gear commonly used by fishermen in the Gulf Amurang to catch demersal fishes/reef fishes. This handline uses artificial baits made of fiber cloth of different colors, and an effective bait color is unknown yet. This research aims to study the effect of artificial bait colors on the pump handline catches, and to identify the species. This research was conducted through experimental methods by operating four pump handline units using red and yellow artificial baits starting at 07:00 am until 14:00 pm. The catches were 33 fishes, consisting of 23 fishes caught with red baits and 10 fishes caught with yellow baits. The results showed that red and yellow artificial baits on the pump handline had different number of catches, the average catches per hour of the respective bait colors were 3.83 (4 fishes) and 1.67 (2 fishes). The catch species consisted of 17 species, and was predominated by groupers, parrot fish, snappers and goat fish. Keywords: pump handline, artificial bait, demersal fish/reef fishes. ABSTRAK Pancing pompa merupakan alat tangkap ikan tradisional yang umum dioperasikan oleh nelayan di Teluk Amurang untuk menangkap jenis-jenis ikan demersal/ikan-ikan karang. Umpan yang digunakan adalah umpan buatan dari serat kain yang warnanya bervariasi, dan warna umpan yang efektif belum diketahui. Sehingga tujuan penelitian ialah mempelajari pengaruh warna umpan buatan terhadap hasil tangkapan pancing pompa dan mengidentifikasi jenis-jenis ikan yang tertangkap. Penelitian ini dilakukan melalui metode eksperimental dengan mengoperasikan empat unit pancing pompa yang menggunakan umpan buatan warna merah dan kuning pada pukul 07.00 hingga pukul 14:00 Wita. Hasil tangkapan yang diperoleh berjumlah 33 ekor ikan, terdiri dari 23 ekor tertangkap dengan umpan buatan warna merah dan 10 ekor tertangkap dengan umpan buatan warna kuning. Hasil analisis menyimpulkan bahwa umpan buatan warna merah dan warna kuning pada pancing pompa ternyata berbeda, karena umpan warna merah mendapatkan hasil rata-rata 3,83 (4 ekor) per jam, sedangkan umpan warna kuning rata-rata 1,67 (2 ekor) per jam. Jenis-jenis ikan yang tertangkap dengan pancing pompa terdiri dari 17 spesies, dan didominasi oleh goropa, kakatua, gorara dan biji nangka. Kata-kata kunci: pancingpompa, umpan buatan, ikandemersal/ikankarang

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Abandoned, Lost or Otherwise Discarded Fishing Gear (ALDFG) in Tuna Pole-and-Line Fisheries

10.21203/rs.3.rs-1170070/v1 ◽

2021 ◽

Author(s):

Christopher K. Pham ◽

Miguel Machete ◽

Zaccari Edwards ◽

Shiham Adam ◽

Roy Bealey ◽

...

Keyword(s):

Indian Ocean ◽

Environmental Impact ◽

Primary Sources ◽

Fishing Gear ◽

Fishing Industry ◽

Marine Litter ◽

Global Industry ◽

Fishing Vessels ◽

Tuna Fishing ◽

Traditional Fishing

Abstract The fishing industry is recognized as one of the primary sources of at-sea marine litter, largely through its contributions via abandoned, lost or otherwise discarded fishing gear (ALDFG). Individual fleet’s contributions to ALDFG vary significantly across this global industry. While much information is available for some fisheries, the rate of ALDFG remains poorly known for many techniques. In this study, we used data collected by fisheries observers onboard pole-and-line fishing vessels in the Azores (Atlantic Ocean) and the Maldives (Indian Ocean) to provide an accurate and representative estimate of ALDFG for this gear. Our analysis of 993 fishing events demonstrated ALDFG contributions much lower than have been recorded for any other commercial tuna fishing gear. Overall, we found that an angler loses some monofilament line in 1.4% (±0.2) of fishing events. This informs that for every thousand tonnes of tuna harvested using this fishing technique, 0.3 kg of nylon is entering the marine environment. Globally, we estimate that all pole-and-line fisheries together contribute to 96 kg ± 42.6 kg of ALDFG per year. These results further evidence the low environmental impact of this traditional fishing practice, as well as the need for other methods to convert to less damaging gears.

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Penerapan Perangkap Lipat (Traps) untuk Penangkapan Kepiting Bakau (Scylla sp.) di Kabupaten Aceh Barat Provinsi Aceh

Jurnal Marine Kreatif ◽

10.35308/.v1i1.2246 ◽

2020 ◽

Vol 1 (1) ◽

Author(s):

Hafinuddin Hafinuddin ◽

Uswatun Hasanah

Keyword(s):

Market Price ◽

Pilot Project ◽

Local Market ◽

Fishing Gear ◽

Mud Crab ◽

Internal Factor ◽

Aceh Province ◽

The Right ◽

Traditional Fishing ◽

Better Than

Prospect of fishing business of mud crab has became the right choice because demand of mud crab is increasing and market price is relatively good. The availability mud crab for local market in West Aceh District is affected by minimum catch, unefficient fishing, where fishermen is still using traditional fishing gear i.e. scoop net as well as having internal factor and external factor. Because of that, the potential business for mud crab fishing with eco-friendly fishing gear i.e. traps is very good to applied. Applying traps was carried out at Kuala Bubon Village Samatiga Sub district Aceh Barat District Aceh Province. Applying traps is for pilot project for fisherman. The Methods include 1) mentoring and sosialization traps; 2) training for making traps and 3) operating traps. Result of the activity show 1) fish catching using traps is better than using scoop net; 2) increased skilll for fishermen about making traps and 3) increased understanding for fisherman about using eco-friendly fishing gear to catching mud crab. Applying traps for fisherman community is very potential to developed for mud crab fishing business.

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MODERNISASI ALAT TANGKAP DAN PENGARUHNYA TERHADAP NELAYAN TELUK PRIGI KAB TRENGGALEK TAHUN 1982-2006

ASANKA: Journal of Social Science And Education ◽

10.21154/asanka.v1i1.1940 ◽

2020 ◽

Vol 1 (1) ◽

pp. 8-15

Author(s):

Khoirun Nikmah

Keyword(s):

Fishing Gear ◽

Capital Constraints ◽

Traditional Fishing

This article aims to analyze the modernization of fishing gear and its influence on the Prigi Bay fishermen in Trenggalek Regency in 1982-2006. In the 1982-2006 temporal, Prigi Bay fishermen underwent several developments in fishing gear changes. Those who first used traditional fishing gear and then used more modern fishing gear. There are also fishermen who continue to use traditional fishing gear because of capital constraints.

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Catchability and selectivity of a low cost, traditional fishing gear in aquaculture ponds

Aquaculture Research ◽

10.1111/j.1365-2109.1993.tb00658.x ◽

1993 ◽

Vol 24 (6) ◽

pp. 783-789

Author(s):

E. KAUNDA ◽

B. A. COSTA-PIERCE

Keyword(s):

Low Cost ◽

Fishing Gear ◽

Aquaculture Ponds ◽

Traditional Fishing

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Growth and Distribution of Frequency Long Fish (Decapterus sp) Catching Products In Iner And Outside Waters Of Bara Buru District - Maluku

Agrikan Jurnal Agribisnis Perikanan ◽

10.29239/j.agrikan.13.2.310-317 ◽

2020 ◽

Vol 13 (2) ◽

pp. 310

Author(s):

Abdussabar Polanunu ◽

Samsia Umasugi ◽

M. Chairul Basrun Umanailo

Keyword(s):

Frequency Distribution ◽

Catchment Area ◽

Average Length ◽

Standing Stock ◽

Distribution Patterns ◽

Fish Length ◽

Fishing Gear ◽

Long Line ◽

Pelagic Fishing ◽

Traditional Fishing

The waters of Bara Bay as one of the small pelagic fishing areas in Buru Regency have considerable potential. Fishing efforts carried out by small fishermen using traditional fishing gear such as gill nets and long line have changed along with the development of fishing technology so that studies are needed related to standing stock and the dynamics of fish resource populations. This study aims to determine the growth and frequency distribution patterns of Layang fish (Decapterus sp) and to compare body lengths of fish caught outside the bay and in the bay of Bara. The result study showed that the highest frequency distribution of Layang (Decapterus sp) fish was outside the bay at 208-218 mm, and the location in the bay was 168-179 mm in length. The growth pattern of Layang fish (Decapterus sp) at both catchment locations (Outside Bay and in the bay) is negative allometric meaning that the length growth is faster than the weight growth.The relationship between fish length and weight was very strong with value R = 0.995 at the Outside Bay catchment area and an R = 0.983 value at the Inside Bay catchment location. There is a difference in the length of the Layang fish (Decapterus sp) caught outside the bay and inside the bay with a significant value of p<0.05 where the average length of the Layang fish (Decapterus sp) outside the Bay is greater (215.876 mm) than the average length of Layang fish (Decapterus sp) in the inside Bay (193.661 mm).

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