CATCH RATE AND CATCH COMPOSITION OF FISH TRAWL BASED IN SIBOLGA, NORTH SUMATERA

To obtain data and information of fish trawl fishery performance operated in the Indian Ocean, a research was carried out through observation on board by observers as well as port sampling inSibolga Fishing Port by enumerators in September 2007, with the aimed to study the performance fish trawl fishery. These include fleet structure, trawl net design and construction, catch, fishing trip, fishing ground, and fishing operation. Results of research showed that there were 71 registered fish trawlers in Sibolga Fishing Port and only 25 boats active due to increasing of fuel price. The fleet structure of fish trawler consist of boat with size 31-114 GT which can be classified into 3 categories i.e. small(<60 GT), medium (60-150 GT), and large fish trawler (>150 GT). Design and construction of fish trawl net indicated that fish trawl net operates in the Indian Ocean was high opening trawl with head and ground rope of 27.8-41.5 m and 29,7-45.8 m, respectively. Fishing trip generally 10-12 days with effective days 7-9 days per trip and the number of net setting was 5-6 times each day. The fishing grounds of fish trawl based in Sibolga were the coastal waters area with maximum depth of 91 m. At least 40 species of fishes and shrimps identified during research and dominant fish species was ponyfish (Leiognathus spp.) threadfin bream (Nemipterus spp.), tall fin goatfish (Upeneus spp.), seacatfish (Arius sp.) as well as yellow striped goatfish (Upeneus vitattus). The average of catch of fish trawler fleet in the year of 2007 was 249.3 kg/haul and that number seems smaller than average of catch/haul previous years. This situation indicates that decreasing of catch per haul of fish trawlers based in Sibolga continues occurring and in other hand price of fuel raises significantly so that big fish trawlers size 150 GT with engine power more than 600 HP are not able to continue their fishing operation.

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Comparison of handline tuna catches in Indian Ocean and Banda Sea waters

E3S Web of Conferences ◽

10.1051/e3sconf/202132203004 ◽

2021 ◽

Vol 322 ◽

pp. 03004

Author(s):

Ignatius Tri Hargiyatno ◽

Regi Fiji Anggawangsa ◽

Moh. Natsir ◽

I. Gede Bayu Sedana ◽

Agustinus Anung Widodo ◽

...

Keyword(s):

Indian Ocean ◽

Average Length ◽

Fishing Ground ◽

Katsuwonus Pelamis ◽

Thunnus Obesus ◽

Significant Difference ◽

Landing Sites ◽

The Indian Ocean ◽

Catch Composition ◽

First Maturity

There are two essential landing sites for handline tuna in Indonesia: Palabuhanratu (in the Indian Ocean) and Kendari (in the Banda Sea). This paper analyzes handline catches from the Indian Ocean and Banda Sea waters as the main fishing ground. The catch composition of the handline tuna landed in Kendari is more varied than Palabuhanratu. Several species commonly caught are yellowfin tuna (Thunnus albacares), skipjack tuna (Katsuwonus pelamis), bigeye tuna (Thunnus obesus) as a target species, and some billfish species as bycatch. Mean CPUE for handline tuna landed in Palabuhanratu is lower than Kendari. A significant difference is based on the monthly mean CPUE variation between Palabuhanratu and Kendari landing sites (p < 0.001). Handline catches in Palabuhanratu had a more comprehensive range of length sizes than Kendari, using a two-sample K-S test showed significant differences (p < 0.001). The fish size landed in Kendari is relatively smaller than Palabuhanratu. The average length of fish caught by handline is smaller than the length at first maturity (Lm) value in both landing sites. The use of large size hook for hand lines is recommended for catching tunas in this area.

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Oceanographic variability and its influence on pelagic fish catch in the Bali Strait

Journal of Biological Researches ◽

10.23869/bphjbr.26.1.20202 ◽

2020 ◽

Vol 26 (1) ◽

pp. 8-16

Author(s):

Abu Bakar Sambah ◽

Trisnanda Devi Oktavia ◽

Denny Wijaya Kusuma ◽

Fenni Iranawati ◽

Nurin Hidayati ◽

...

Keyword(s):

Indian Ocean ◽

Pelagic Fish ◽

Sea Surface ◽

Geographical Information ◽

Fishing Ground ◽

Time Interval ◽

Fishing Trip ◽

Positive Correlation ◽

Fish Catch ◽

The Indian Ocean

The existence of pelagic fish resources is greatly influenced by the condition of the waters which are described through its relationship with the oceanographic parameters. As a dominant species in Bali Strait, lemuru fish (Sardinella lemuru) have catch dynamics that vary each year. Oceanographic factor influence the number of fish catch in Bali Strait, in which global phenomena such as ENSO and IOD also have a role in influencing the migration of marine resources. This research aims to analysis annual variation of Sea Surface Temperature (SST) and Sea Surface Chlorophyll-a (SSC) in Bali Strait, and its effect on fish catch. The method applied a quantitative descriptive with correlation analysis and spatial analysis using Geographical Information System approach. The analysis described a significant impact of oceanographic parameters on pelagic fish catch. SSC has a significant impact on the number of fish catch which describes a positive correlation, and it illustrated a time interval between the highest concentration of SSC and the period of fishing peak season. It also impacts the fishing trip and the distribution of fishing ground that spread along the area of the Indian Ocean to Bali Strait. SSC has a significant impact on the number of fish catch which describes a positive correlation, and it illustrated a time interval between the highest concentration of SSC and the period of fishing peak season. It also impacts the fishing trip and the distribution of fishing ground that spread along the area of the Indian Ocean to Bali Strait

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The shark by-catch of tuna longline fisheries in Southern Indian Ocean of Java, Indonesia

E3S Web of Conferences ◽

10.1051/e3sconf/20187402004 ◽

2018 ◽

Vol 74 ◽

pp. 02004

Author(s):

Priyo Suharsono Sulaiman ◽

Mufti Petala Patria ◽

Rauf Achmad Sue

Keyword(s):

Indian Ocean ◽

Time Series Data ◽

Southern Indian Ocean ◽

Fishing Ground ◽

Series Data ◽

The Indian Ocean ◽

By Catch ◽

Catch Composition ◽

Longline Fisheries ◽

Tuna Longline

In relation to the achievement of the target SDG’s No. 14, the sustainable shark fisheries management need to implement. As a part of the tuna fisheries by-catch, a high number of shark resources have been caught in the Indian Ocean waters. One of the main vessels of tuna catchers in the Southern Indian Ocean of Java is the tuna longline from Cilacap. This paper aims to analyze the shark by-catch of tuna longline in the Indian Ocean in the south Java that landed in Cilacap. The research data was obtained from daily recording activities of fishing vessel loading activities by Cilacap Ocean Fisheries Port staff during the period of 2013-2017. The analysis was done through data tabulation, graphical approaches, and data trend analysis through the availability of time series data. The data analyzed include fleet development, fishing ground, catch composition and CPUE value. The results of the analysis show that there are about eight species of sharks that are by-catch of tuna longline from Cilacap. The highest shark by-catch occurred in April with CPUE averaging 9 kg/day/vessel. The blue shark (Prionace glauca) is the dominant shark catch which reaches 66% of the total sharks catch.

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Prediction of delayed mortality using vitality scores and reflexes, as well as catch, processing, and post-release conditions: evidence from discarded flatfish in the Western Baltic trawl fishery

ICES Journal of Marine Science ◽

10.1093/icesjms/fsy129 ◽

2018 ◽

Vol 76 (1) ◽

pp. 330-341 ◽

Cited By ~ 2

Author(s):

S B M Kraak ◽

A Velasco ◽

U Fröse ◽

U Krumme

Keyword(s):

Scientific Evidence ◽

Handling Time ◽

Fishing Ground ◽

High Survival ◽

Trawl Fishery ◽

Fishing Vessels ◽

Reflex Action ◽

Delayed Mortality ◽

Catch Composition ◽

The Eu

Abstract The EU discard ban and its high-survival exemption exposed our lack of scientific evidence on discard survival in the fisheries. Discard survival is known to be highly variable and influenced by numerous factors, including conditions during the catch, on-board the fishing vessels, and post-discard. Therefore, obtaining unambiguous results in discard survival experiments is challenging. We conducted the first systematic year-round discard survival study of flatfish in the Western Baltic Sea on-board a commercial stern trawler under realistic fishing conditions (13 monthly hauls from May 2015 to May 2016) to test whether delayed mortality can be predicted by vitality scores and reflex action mortality predictor (RAMP) scores in combination with variable conditions during catch, processing, and post-release. The factors vessel type, gear, haul duration, fishing ground, depth, handling time, and processing procedures were kept constant as much as possible. On-board, live individual flatfish were tested for vitality and the presence of reflexes for RAMP, then “discarded” and kept in cages on the bottom of the seafloor for about a week after which the delayed mortality was determined. The proportions of “discarded” plaice, flounder, and dab that were dead after being kept in the cages ranged from 5% to 100%, 0% to 96%, and 33% to 100%, respectively. Higher mortalities occurred in summer-autumn when air and water temperatures were higher, catches smaller, and catches contained smaller proportions of roundfish. Relationships between RAMP scores and mortality probabilities varied substantially across the monthly trials. Indeed, in addition to RAMP or vitality scores and individual reflexes, the factors air and water temperature and catch weight and catch composition were significant in logistic GLMs explaining delayed mortality. Cross-validations indicated that delayed mortality could be predicted by these models with a reasonable accuracy. Nevertheless, the presence of possible confounding effects calls for caution in inferring causality and extrapolating the conclusions on predictability.

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KOMPOSISI DAN FLUKTUASI HASIL TANGKAPAN IKAN CUCUT DOMINAN YANG TERTANGKAP RAWAI TUNA PERMUKAAN

Jurnal Penelitian Perikanan Indonesia ◽

10.15578/jppi.14.4.2008.371-377 ◽

2017 ◽

Vol 14 (4) ◽

pp. 371

Author(s):

Dharmadi Dharmadi ◽

Suprapto Suprapto ◽

Agustinus Anung Widodo

Keyword(s):

Indian Ocean ◽

Total Catch ◽

Fishing Activity ◽

Prionace Glauca ◽

Long Line ◽

Landing Sites ◽

Silky Shark ◽

The Indian Ocean ◽

Carcharhinus Falciformis ◽

Catch Composition

Perikanan rawai tuna memiliki kontribusi cukup besar terhadap hasil tangkapan ikan cucut (Requiem shark sp.) di perairan Samudera Hindia. Hasil tangkapan rawai tuna sebagian besar didaratkan di 2 pendaratan ikan utama yaitu Pelabuhan Perikanan Pelabuhan Ratu dan Pelabuhan Perikanan Samudera Cilacap. Kegiatan penelitian untuk mengetahui komposisi dan fluktuasi hasil tangkapan ikan cucut (Requiem shark sp.) dominan pada rawai tuna permukaan berbasis di 2 lokasi pendaratan ikan tersebut dilakukan pada tahun 2004. Hasil penelitian menunjukkan bahwa komposisi hasil tangkapan cucut (Requiem shark sp.) pada rawai tuna permukaan didominansi oleh jenis ikan cucut karet atau selendang (Prionace glauca) antara 40 sampai dengan 90%, sedangkan komposisi jenis ikan cucut lain seperti ikan cucut lanjaman (Carcharhinus falciformis dan Carcharhinus sorrah), cucut paitan (Alopias superciliosus), cucut tikusan (Alopias pelagicus), dan cucut mako (Isurus sp.) antara 3 sampai dengan 30%. Hasil tangkapan ikan cucut (Requiem shark sp.) terhadap hasil tangkapan total rawai tuna permukaan antara 5 sampai dengan 25% pada tahun 2004 dari rata-rata 85 unit kapal rawai tuna yang beroperasi di perairan Samudera Hindia. Hasil tangkapan ikan cucut (Requiem shark sp.) tertinggi terjadi pada bulan Juli sampai dengan Agustus. Hasil tangkapan ini berkaitan dengan kondisi cuaca (Requiem shark sp.) pada saat nelayan melakukan penangkapan ikan di laut. Tuna long lines fisheries have more contributed on the catch of shark (Requiem shark sp.) in the Indian Ocean. Most of catch from tuna long lines landed at two main landing sites of tuna long line which operated in the Indian Ocean were Pelabuhan Ratu and Cilacap. This study was conducted at that two landing sites during 2004. The result showed that shark (Requiemshark sp.) catch composition on tuna long line was dominated by blue shark, Prionace glauca (40 to 90%), while other sharks i.e. silky shark (Carcharhinus falciformis), spot tail shark (Carcharhinus sorrah), big eye thresher (Alopias superciliosus), pelagic thresher (Alopias pelagicus), and mako shark (Isurus sp.) between 3 to 30% from the total catch of shark (Requiem shark sp.). Percentage catch of sharks (Requiem shark sp.) againts total catch of tuna surface long line during 2004 was ranging 5 to 25% from everage of 85 unit of tuna long line boat that operated in the Indian Ocean. Catch fluctuation related with the weather conditon when the fishers are fishing activity at sea. The high catch of shark (Requiem shark sp.) was occur on July until August.

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Oceanografyc Satellite Data Utilisation For Tuna (Thunnus Obesus) Fishing Ground Prediction In The Indian Ocean, Southern Part Of Jawa-Bali

Jurnal Segara ◽

10.15578/segara.v7i1.46 ◽

2011 ◽

Vol 7 (1) ◽

pp. 29 ◽

Cited By ~ 1

Author(s):

Teja Arief Wibawa

Keyword(s):

Indian Ocean ◽

Satellite Data ◽

Fishing Ground ◽

Thunnus Obesus ◽

The Indian Ocean

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DAERAHPENANGKAPAN, LAJUPANCINGDANPARAMETERPOPULASI IKAN GINDARA (Lepidocybium flavobrunneum) DI SAMUDERA HINDIA

BAWAL Widya Riset Perikanan Tangkap ◽

10.15578/bawal.8.1.2016.49-56 ◽

2016 ◽

Vol 8 (1) ◽

pp. 49 ◽

Cited By ~ 1

Author(s):

Andi Bahtiar ◽

Abram Barata ◽

Dian Novianto

Keyword(s):

Indian Ocean ◽

Total Mortality ◽

Growth Parameter ◽

Fishing Ground ◽

Fishing Mortality ◽

Length Frequency ◽

Instantaneous Rate ◽

Exploitation Rate ◽

The Indian Ocean ◽

Longline Fisheries

Ikan gindara atau escolar (Lepidocybium flavobrunneum), umumnya tertangkap sebagai hasil tangkapan sampingan (bycatch) pada perikanan rawai tuna Indonesia. Penelitian dilakukan dengan metode observasi onboard pada armada rawai tuna yang berbasis di Pelabuhan Benoa mulai bulan Agustus 2005 - Desember 2009 yang beroperasi di Samudera Hindia. Tujuan penelitian ini adalah memberikan informasi daerah penangkapan, menganalisis parameter populasi (umur, pertumbuhan, mortalitas) dan laju eksploitasi ikan gindara hasil tangkapan kapal rawai tuna di Samudera Hindia. Hasil penelitian menunjukan ikan gindara yang tertangkap oleh kapal rawai tuna menyebar pada posisi geografis antara 90-330 LS dan 760-1270 BT dengan nilai laju pancing (HR) ikan gindara tertinggi pada tahun 2007 sebesar 0,15 dan terendah tahun 2005 yaitu 0,04, atau rata-rata HR sebesar 0,10. Ikan yang tertangkap memiliki ukuran panjang cagak antara 35-193 cm dengan rata-rata 87,4 cm. Parameter populasi yang dianalisa dengan program FiSAT II diperoleh panjang asimtotik (L∞) = 201,60 cmFL, koefisien laju pertumbuhan (K) = 0,21 per tahun dan t0 = -0,4755 tahun. Nilai dugaan mortalitas total (Z) sebesar 0,85 per tahun, nilai dugaan mortalitas alami (M) = 0,37 per tahun dan laju mortalitas penangkapan (F) = 0,48 per tahun. Laju eksploitasi (E = 0,56) menunjukkan bahwa pemanfaatan gindara di Samudera Hindia diatas nilai optimum yang disarankan yaitu E = 0,50.Escolar (Lepidocybium flavobrunneum) commonly caught as bycatch in Indonesia tuna longline fisheries. The study was conducted on August 2005 - December 2009 with onboard observation of tuna longliner based in Benoa fishing port. The objectives of this study are provide information about fishing ground, analyzing parameters of population (age, growth, mortality) and exploitation rate of escolar caught by Indonesia tuna longliner in the Indian Ocean. The results showed that escolar caught by tuna fleets longliner spread on latitude and longitude 900-330 S and 760-1270 E with highest hook rate in 2007 at 0.15 and lowest hook rate occurred in 2005 at 0.04, with average HR at 0.10. Length frequency distribution of escolar were 35-193 cmFL with length average of 87.4 cm. The Von Bertalanffy growth parameter for escolar in Indian Ocean were L∞ = 201.60 cm, K = 0.21 year-1 and t0 = -0,4755 years. The annual instantaneous rate of total mortality (Z) was 0.85 year-1. The natural mortality (M) was 0.37 year-1 and the fishing mortality (F) was 0.48 year-1. The exploitation rate (E = 0.56) indicating that escolar in the Indian Ocean has reached the optimum limit.

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KRITERIA ALOKASI TANGKAPAN TUNA UNTUK KOMISI TUNA SAMUDERA HINDIA (IOTC)

Marine Fisheries Journal of Marine Fisheries Technology and Management ◽

10.29244/jmf.9.2.133-144 ◽

2018 ◽

Vol 9 (2) ◽

pp. 133

Author(s):

. Darmawan ◽

Aditya Setianingtyas ◽

M. Fedi A. Sondita

Keyword(s):

Indian Ocean ◽

Data Collection ◽

Management Plan ◽

Maximum Sustainable Yield ◽

Fishing Ground ◽

Sustainable Yield ◽

Bigeye Tuna ◽

Long Distance ◽

Allocation Criteria ◽

The Indian Ocean

ABSTRACTCatch allocation scheme generally establish based on country’s historic catch data. Growing membership from coastal states in the Indian Ocean Tuna Commission (IOTC), raise issue about the importance of geographical position in determining a catch allocation criteria. In 2009, Scientific Committee of IOTC estimated that landings of yellowfin tuna and bigeye tuna had nearly or even exceeded its maximum sustainable yield (MSY). Therefore, in 2010, IOTC adopted resolution to establish a system and criteria on allocation of catch for yellow fin and bigeye tuna and invited member countries to submit proposal. Indonesia proposes criteria on historic catch, economic dependency toward tuna, coastal state status, bio-ecological significance of the fishing ground, IOTC membership and level of compliance. Japan, which represents the state long-distance fishing, proposes historic catch, sustainable management plan, IOTC membership, level of compliance, financial contribution, contribution to research and data collection, and utilization of allocated quota.Objective of the research is to analyse comparation of both proposals with regards to coastal states’ rights and jurisdiction in accord with UNCLOS 1982 and resource management rights concept in Schlager and Ostrom (1992). The research used a qualitative approach in which literature and report reviews had been conducted as data collection method, strengthened with depth interviews of resource persons, particularly Indonesia’s delegates and other relevant parties. Data obtained were analyzed descriptively using simulation calculations according to the proposed criteria. Results show that Indonesian proposed criteriaprovide advantages for coastal states, but will be disadvantaged for Japan and other distant fishing countries. It needs an approach and further deliberation to reach agreement on tuna catch allocation criteria in the IOTC.Keywords: catch allocation criteria, coastal states, management rights ABSTRAKSkema alokasi kuota tangkapan seringkali ditentukan berdasarkan catatan sejarah hasil tangkapan armada tiap negara. Meningkatnya keanggotaan Indian Ocean Tuna Commission (IOTC) yang berasal dari negara pantai di Samudera Hindia, menjadikan kriteria alokasi tangkapan berdasarkan posisi geografis menjadi isu yang sangat penting. Pada tahun 2009, stok tuna sirip kuning (yellowfin) dan tuna mata besar (bigeye) di Samudera Hindia diduga telah mendekati atau bahkan melebihi perkiraan nilai maximum sustainable yield (MSY) nya. Oleh sebab itu tahun 2010, IOTC mengeluarkan resolusi untuk menyusun sistem dan kriteria alokasi tangkapan dan meminta usulan proposal. Kriteria yang diusulkan Indonesia meliputi sejarah penangkapan, ketergantungan ekonomi terhadap tuna, posisi negara pantai, signifikansi perairan negara, keanggotaan IOTC dan tingkat kepatuhan. Adapun Jepang yang mewakili negara penangkap ikan jarak jauh mengusung kriteria sejarah penangkapan, rencana perikanan berkelanjutan, keanggotaan IOTC, tingkat kepatuhan, kontribusi keuangan, kontribusi pada riset dan pendataan serta tingkat pemanfaatan alokasi kuota. Penelitian ini bertujuan membandingkan kriteria kedua usulan tersebut dari sudut pandang hak-hak negara pantai dalam konvensi hukum laut internasional dan konsep kepemilikan sumber daya ikan (Schlager dan Ostrom 1992). Penelitian dilakukan melalui pendekatan kualitatif dimana data dan informasi diperoleh melalui kajian pustaka dan wawancara terhadap ketua atau anggota delegasi Indonesia serta pihak-pihak terkait lainnya. Data yang diperoleh dianalisis secara deskriptif dengan menggunakan simulasi perhitungan sesuai kriteria yang diusulkan. Hasil penelitian menunjukkan bahwa kriteria yang diusulkan Indonesia lebih menguntungkan bagi Indonesia, tetapi membuat Jepang dan negara penangkap ikan jarak jauh sulit untuk menerimanya. Diperlukan pendekatan dan diskusi lebih lanjut untuk mencapai kesepakatan kriteria alokasi tangkapan tuna di IOTC.Kata kunci: kriteria alokasi tangkapan, negara pantai, hak pengelolaan

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KOMPOSISI HASIL TANGKAPAN DAN DAERAH PENANGKAPAN PANCING ULUR TUNA DI PERAIRAN SENDANG BIRU

Jurnal Penelitian Perikanan Indonesia ◽

10.15578/jppi.25.4.2019.241-251 ◽

2019 ◽

Vol 25 (4) ◽

pp. 241

Author(s):

Maya Agustina ◽

Irwan Jatmiko ◽

Ririk Kartika Sulistyaningsih

Keyword(s):

Indian Ocean ◽

Landing Site ◽

Yellowfin Tuna ◽

Purse Seine ◽

Fishing Ground ◽

Fishing Gear ◽

Tuna Fishing ◽

The Indian Ocean ◽

High Seas

Tuna, cakalang dan tongkol (TCT) merupakan jenis hasil tangkapan ikan yang memiliki nilai ekonomis penting dan masih terdapat peluang untuk dimanfaatkan. Salah satu sentra perikanan tuna, cakalang dan tongkol di kawasan Indonesia Barat yang terbesar adalah di Kabupaten Malang tepatnya di Pelabuhan Perikanan Pantai (PPP) Pondokdadap Sendang Biru. Jenis alat penangkapan ikan yang digunakan oleh nelayan untuk menangkap tuna di perairan ini adalah pancing ulur (handline) yang dioperasikan dengan menggunakan bantuan rumpon. Tujuan penelitian ini adalah untuk mengetahui informasi sebaran daerah penangkapan (teritorial, ZEE dan laut lepas) dan bagaimana dinamika hasil tangkapannya khususnya tuna, cakalang dan tongkol. Pancing ulur mendominasi alat penangkapan ikan yang digunakan di PPP Pondokdadap, Sendang Biru tercatat sebanyak 70,42%, sedangkan pukat cincin sebanyak 9,82% dan pancing rawai sebanyak 19,76%. Jenis hasil tangkapan pancing ulur terbanyak adalah cakalang dan juwana tuna. Daerah penangkapan nelayan pancing ulur yang berbasis di PPP Pondokdadap, Sendang Biru menyebar pada kawasan perairan dengan batasan antara 8º – 12º LS dan 108º – 115º BT atau secara geografis berada di dalam perairan teritorial, ZEE dan di laut lepas. Prosentase hasil tangkapan TCT yang tertangkap pancing ulur berdasarkan wilayah perairan seperti berikut: teritorial sebanyak 0,63%, ZEE sebanyak 78,68% dan di luar ZEE (laut lepas) sebanyak 20,69%. Tuna, skipjack and little tuna are economically important and still has the potential to cathed. One of the fisheries centers tuna, skipjack and little tuna landing site in the western part of Indonesia is in Malang located at Pondokdadap Sendang Biru fishing port. The fishing gear commonly used by Sendang Biru fishermen to catch tuna in the Indian Ocean waters is handline which is operated around FADs. The purpose of this study was to find out information the distribution of fishing areas (territorial, EEZ and high seas) and how the dynamics of the catch especially tuna, skipjack and little tuna. The dominant fishing gear in PP Pondokdadap Sendang Biru is the handline with 70.42%, followed by purse seine 9.82% and longlines 19.76%. The dominant catches caught by handline were skipjack and juvenile of yellowfin tuna. Fishing ground of hand line based in PP Pondokdadap located in waters with boundaries between 8º - 12º LS and 108º - 115ºBT or geographically located in the waters territorial, EEZ and on the high seas. Tuna catches precentage caught by handline in territorial, EEZ and high seas, accounting for 0.63%, 78.68% and 20.69%, respectively.

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CATCH COMPOSITION, BIOMASS, AND DISTRIBUTION OF CEPHALOPHODS IN THE INDIAN OCEAN OF SOUTHERN JAVA AND WESTERN SUMATERA

Indonesian Fisheries Research Journal ◽

10.15578/ifrj.12.2.2006.101-106 ◽

2017 ◽

Vol 12 (2) ◽

pp. 101

Author(s):

Awwaluddin Awwaluddin ◽

Ali Suman ◽

Fayakun Satria ◽

Suprapto Suprapto

Keyword(s):

Indian Ocean ◽

Species Composition ◽

Deep Sea ◽

Catch Rate ◽

The Indian Ocean ◽

Species Composition And Distribution ◽

Catch Composition

An exploratory trawling to obtain data on the catch rate, species composition, and distribution of the deep sea cephalophods in the Indian Ocean of southern Java and eastern Sumatera using the RV Baruna Jaya lV was carried out during May 2 to July 7 year 2005.

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