scholarly journals Fluktuasi hasil tangkapan mini purse seine yang didaratkan di Pelabuhan Samudra Bitung (Catch fluctuations of mini purse seine landed in Oceanic Fisheries Port, Bitung)

2018 ◽  
Vol 2 (6) ◽  
Author(s):  
Sunarto Sunarto ◽  
Isrojaty Johanes Paransa ◽  
Alfred Luasunaung
Keyword(s):  
Pelagic Fish ◽  
Bony Fish ◽  
Purse Seine ◽  
Catch Per Unit Effort ◽  
Small Pelagic Fish ◽  
Fishing Season ◽  
Unit Effort ◽  
Catch Composition ◽  
Descriptive Method

Fish catches landed in the Oceanis Fisheries Port (OFP), Bitung, are mackerel (Decapterus sp), ray finned bony fish (Euthynus sp), yellowstripe scad (Selaroides sp), and mackerel (Rastrelliger sp). This study used descriptive method and aimed to know the composition and the fluctuation of mini purse seine catches landed in OFP Bitung, to know the catch per unit effort (CPUE), and to analyze the fishing season.  Catch composition in 2012-2016 consisted of Euthynnus spp. (37.30%), Decapterus sp. (27.59%), Selaroides sp. (25.89%), and Rastrelliger sp. (9.22%). The highest total number of catch occurred in 2014 (650.29 tons), then in 2015 (509. 91 ton), and 2016 (338.31 tons). The highest CPUE was recorded in 2012 and 2013, in November and August, respectively. In 2014, the highest occurred in September then December. In 2015, the highest was found in  January then March. In 2016, the highest was recorded in June than October and November. Fishing season in 2012 and 2013 occurred in October and August; In 2014, the highest was in September then December; in 2015, the highest occurred in January, and in 2016, the highest was in June.Keywords; mini purse seine, small pelagic fish, CPUE, fishing season ABSTRAK Hasil tangkapan yang di daratkan di Pelabuhan Perikanan Samudra (PPS) Bitung , adalah ikan layang (Decapterus sp), ikan tongkol (Euthynus sp), ikan selar (Selaroides sp), dan ikan kembung (Rastrelliger sp). Penelitian menggunakan metoda deskriptif, bertujuan mengetahui komposisi dan fluktuasi jumlah tangkapan mini purse seine yang didaratkan di PPS Bitung, mengetahui tingkat upaya penangkapan dengan mini purse seine, menganalisis musim penangkapan ikan dengan mini purse seine yang didaratkan di PPS Bitung.  Komposisi jumlah tangkapan mini purse seine rata-rata Tahun 2012 - 2016 terdiri ikan tongkol (37,30%); ikan layang (27,59%), ikan selar (25,89%) dan ikan kembung (9,22%). Total jumlah tangkapan tertinggi terjadi pada Tahun 2014 (650,29 ton), kemudian Tahun 2015 (509, 91 ton) dan Tahun 2016 (338,31 ton).  tingkat upaya penangkapan ikan (CPUE) dengan mini purse seine Tahun 2012 dan 2013, tertinggi pada bulan November kemudian Agustus; Tahun 2014 tertinggi bulan September kemudian Desember; Tahun 2015 tertinggi bulan Januari kemudian Maret; Tahun 2016 tertinggi bulan Juni kemudian Oktober dan November. Musim penangkapan ikan dengan mini purse seine Tahun 2012 dan 2013 terjadi pada bulan Oktober dan Agustus; Tahun 2014 tertinggi bulan September kemudian Desember; Tahun 2015 tertinggi bulan Januari dan Tahun 2016 tertinggi di bulan Juni.Kata-kata kunci, mini purse seine, pelagis kecil, CPUE, musim penangkapan

scholarly journals RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

2017 ◽  
Vol 8 (2) ◽  
pp. 713-728
Author(s):  
Yulia Estmirar Tanjov ◽  
Roza Yusfiandayani ◽  
. Mustaruddin
Keyword(s):  
Fishing Effort ◽  
Maximum Sustainable Yield ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Sustainable Yield ◽  
Catch Per Unit Effort ◽  
Small Pelagic Fish ◽  
Bay Area ◽  
Fisheries Resources ◽  
The Status

Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2) to describe the dominant fish caught by mini purse seine.  Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish Selaroides sp., mackerel fish Rastrelliger sp., longnose trevally fish Carangoides chrysophrys. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably.

scholarly journals RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA

2017 ◽  
Vol 8 (2) ◽  
pp. 713
Author(s):  
Yulia Estmirar Tanjov ◽  
Roza Yusfiandayani ◽  
. Mustaruddin
Keyword(s):  
Fishing Effort ◽  
Maximum Sustainable Yield ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Sustainable Yield ◽  
Catch Per Unit Effort ◽  
Small Pelagic Fish ◽  
Bay Area ◽  
Fisheries Resources ◽  
The Status

<p><em>Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2)</em><em> to describe the dominant fish caught by mini purse seine. </em><em> Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish <span style="text-decoration: underline;">Selaroides</span> </em>sp<em>., mackerel fish <span style="text-decoration: underline;">Rastrelliger</span> </em>sp<em>., longnose trevally fish <span style="text-decoration: underline;">Carangoides</span> <span style="text-decoration: underline;">chrysophrys</span>. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably.</em></p>

scholarly journals Characteristics of purse seine fisheries in the Sulawesi Sea (case study in Tumumpa fishing port)

2021 ◽  
Vol 919 (1) ◽  
pp. 012016
Author(s):  
Baihaqi ◽  
Mahiswara ◽  
T W Budiarti
Keyword(s):  
Data Collection ◽  
Fork Length ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Fishing Gear ◽  
Small Pelagic Fish ◽  
Fishing Season ◽  
Fish Resources ◽  
Pelagic Fishing

Abstract The purse seine is the dominant fishing gear operating at the Tumumpa Fishing Port with a vessel of >90%. The purse seines that have developed are large pelagic targets, with the main catch targets being skipjack, mackerel tuna, and tuna. Tuna, mackerel tuna and skipjack are important commodities for fisheries in Indonesia. This study aims to determine the characteristics of purse seine fishing gear and its catch in the Sulawesi Sea. Data collection was carried out for two years from 2019-2020 at Tumumpa Fishery Port. Indications for the use of fish resources are calculated by comparing the length-at-first-capture (Lc) with the length-at-first-mature (Lm). The results showed that purse seines are very dominant in exploiting large pelagic resources (skipjack, mackerel tuna and tuna) with the proportion reaching 78%, small pelagic (21% scads and 1% other fish). The large pelagic fishing season using the purse seine vessel occurs in May – November, with 2 peak seasons in July and September. While the small pelagic occurs in May – September, with the peak occurring in July. The size when the frigate tuna was first caught was at a fork length of 25.15 cm (Lc) and Lm in a size of 28.52 cm for females and 28.29 cm for males. Meanwhile, the first scads was caught (Lc) at a length of 21.4 cm with the length-at-first-mature (Lm) being 20 cm for the female and 19 cm for the male. Based on this analysis, it was shown that the purse seines is a selective fishing gear for small pelagic fish but not selective for large pelagic fish.

scholarly journals Catch per unit effort (CPUE) periode lima tahunan perikanan pukat cincin di Kota Manado dan Kota Bitung

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Helmy A. Wurlianty ◽  
Johny Wenno ◽  
Mariana E. Kayadoe
Keyword(s):  
Fishery Management ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Catch Per Unit Effort ◽  
Maximum Production ◽  
Unit Effort ◽  
Fishing Gears ◽  
Fishing Capacity ◽  
The City ◽  
Purse Seine Fishery

ABSTRACT Overfishing is due to increasing fishing capacity through increasing the size of fishing gears and vessels. This research aims to analyze the development of the five-year CPUE and maximum production of purse seine fishery in Manado and Bitung Cities periodically and determine changes in fishing capacity and its influence on CPUE. The results of this study are expected to provide information in the purse seine fishery management in the city of Manado and Bitung. The results of the analysis is the highest CPUE for Bitung occurred in the period 2005-2009, the lowest CPUE occurred in the period 2008-2012 and the highest CPUE for Manado occurred in the period 2008-2012, the lowest CPUE occurred in the period 2006-2010. The highest maximum production Bitung occurred in the period 2008-2012 amounted to 22.083 tons and maximum production of Manado occurred in the period 2006-2010 amounted to 7.855 tons. The number of vessels and their sizes in each five-year period there increased in line with the increase of production. Keywords: catch, effort, purse seine, pelagic fish.   ABSTRAK Penangkapan ikan secara berlebihan terjadi karena meningkatnya kapasitas tangkap yaitu melalui penambahan ukuran alat tangkap dan ukuran kapal. Penelitian ini bertujuan untuk menganalisis perkembangan lima tahunan CPUE maupun produksi maksimum perikanan pukat cincin di Kota Manado dan Kota Bitung secara periodik dan mengetahui perubahan kapasitas tangkap dan pengaruhnya terhadap CPUE. Hasil penelitian ini diharapkan dapat memberikan informasi dalam pengelolaan perikanan pukat cincin di Kota Manado dan Kota Bitung. Hasil analisis yang diperoleh adalah CPUE tertinggi untuk Kota Bitung terjadi pada periode tahun 2005-2009, CPUE terendah terjadi pada periode tahun 2008-2012 dan CPUE tertinggi untuk Kota Manado terjadi pada periode tahun 2008-2012, CPUE terendahnya terjadi pada periode tahun 2006-2010. Produksi maksimum tertinggi Kota Bitung terjadi pada periode tahun 2008-2012 sebesar 22.083 ton dan produksi maksimum Kota Manado terjadi pada periode tahun 2006-2010 sebesar 7.855 ton. Jumlah kapal dan ukuran kapal pada setiap periode lima tahunan meningkat seiring dengan peningkatan produksi. Kata-kata kunci: hasil tangkapan, upaya, pukat cincin, ikan pelagis

scholarly journals Komposisi Jenis Plankton Pada Musim Penangkapan Ikan Penja (Gobioidea sp) Di Muara Sungai Mandar

2020 ◽  
Vol 4 (1) ◽  
pp. 29-42
Author(s):  
Chichilia Qaila Azzahrah Rahman ◽  
Moh. Tauhid Umar ◽  
Nita Rukminasari ◽  
Sahabuddin Sahabuddin
Keyword(s):  
Diversity Index ◽  
Pelagic Fish ◽  
Sampling Time ◽  
Sampling Location ◽  
Small Pelagic Fish ◽  
Fishing Season ◽  
Long Time ◽  
Index Value ◽  
Biology Laboratory ◽  
Aquaculture Development

Penja is an endemic fish in the Mandar river and is one of the small pelagic fish species that has been used by fishermen in Polewali Mandar for a long time. Penja fish is one of the water organisms that utilize plankton as its food. This study aims to determine the composition of the plankton species the fishing season in Mandar waters of Polewali Mandar Regency, West Sulawesi Province. This research was conducted in November-December 2017. The sampling location was conducted in two different water locations which are at estuary and body of Mandar River, Polewali Mandar Regency, West Sulawesi Province. And the identification of samples was done at the Biology Laboratory of Plankton and Natural Feed at the Research Center for Brackishwater Aquaculture Development and Fisheries Extension (BRPBAP3) of Maros Regency. The results of this study indicate that the highest abundance of plankton during the fishing season in the estuary waters and the month of December. Bacillariophyceae class is the most plankton class found during the study and there is 37 genus plankton consisting of 28 genus of phytoplankton and 9 genus of zooplankton. The range of diversity index value during fishing time, sampling location, research month and sampling time are 1 <H '<3 which means medium diversity, uniformity index value is 0.7-0.9 so that the plankton uniformity index is relatively the same or equal, and the Domination index value indicates that no domain genus in the community.

scholarly journals Mitigating Slipping-Related Mortality from Purse Seine Fisheries for Small Pelagic Fish: Case Studies from European Atlantic Waters

2018 ◽  
pp. 297-318 ◽  
Author(s):  
Ana Marçalo ◽  
Mike Breen ◽  
Maria Tenningen ◽  
Iñigo Onandia ◽  
Luis Arregi ◽  
...  
Keyword(s):  
Case Studies ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Small Pelagic Fish ◽  
Related Mortality

scholarly journals Gill net catch composition and catch per unit effort in Flag Boshielo Dam, Limpopo Province, South Africa

Water SA ◽  
2017 ◽  
Vol 43 (3) ◽  
pp. 463 ◽  
Author(s):  
J.R. Sara ◽  
O.L.F. Weyl ◽  
S.M. Marr ◽  
W.J. Smit ◽  
P.S.O. Fouché ◽  
...  
Keyword(s):  
South Africa ◽  
Limpopo Province ◽  
Catch Per Unit Effort ◽  
Unit Effort ◽  
Gill Net ◽  
Catch Composition

scholarly journals Interaction between small pelagic purse seine fishery and its top predators

2018 ◽  
Vol 59 (2) ◽  
pp. 185-190
Author(s):  
Barbara Zorica ◽  
Vanja Čikeš Keč ◽  
Kristijan Zanki ◽  
Leon Grubišić ◽  
Tanja Šegvić-Bubić
Keyword(s):  
Preliminary Data ◽  
Negative Impact ◽  
Pelagic Fish ◽  
Purse Seine ◽  
Small Pelagic Fish ◽  
Fish Schools ◽  
Top Predators ◽  
Increasing Trend ◽  
Monthly Pattern ◽  
Purse Seine Fishery

Due to very good collaboration with one commercial purse seiner, using “Srdelara” and operating in fishing zone G, preliminary data concerning the interaction between small pelagic purse seine fishery and its predators were obtained. According to the notes taken by experience observer on-board in period from year 2013 to 2016, seems that tunas, dolphins and swordfish were the faithful companions of purse seiner fisherman with abundance of 68.6%, 22.0% and 9.4%, respectively. Although they were present all year round, their monthly pattern of appearance indicated that less tunas were recorded in May-June, more dolphins were noted from July to October while swordfish were mostly abundant in winter (January-March). Within the investigated period, slightly increasing trend of tuna and dolphins’ appearance was recorded, although statistically not significant. Analysing possible correlation between purse seine catches and predator’s abundances, revealed that appearance of tuna had negative impact on the catches (dispersion of schools), while realised catches in presence of dolphins were quite good so it seems that they tend to round up small pelagic fish schools.

scholarly journals Catch composition and management of daytime purse seine fishery on the Southern Mediterranean Sea Coast, Abu Qir Bay, Egypt

2001 ◽  
Vol 2 (2) ◽  
pp. 119 ◽  
Author(s):  
A. EL-HAWEET
Keyword(s):  
Purse Seine ◽  
Target Species ◽  
Catch Per Unit Effort ◽  
Main Target ◽  
Length Range ◽  
Target Fish ◽  
Southern Mediterranean ◽  
By Catch ◽  
Abu Qir Bay ◽  
Catch Composition

The present work aimed to obtain precise data on the catch of the purse seine net operating at daytime from sunrise till noon in Abu Qir Bay during 1997 and 1998. Sardine, anchovy, mullet and rabbitfish were recorded as the main target fish groups. Twenty-seven species were recorded as by-catch species. Catch per unit effort was estimated to be 93 kg/day/boat. The percentage of each target species in the catch and its length frequency distribution were presented. The length range of by-catch species and the season of catch were recorded. Daytime purse seine in Abu Qir Bay is an effective method but should regulated by directing the fishing to deeper waters outside the bay rather than the inshore coastal area to conserve many economic species of this important fishery.

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