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"Copepoda merupakan zooplankton yang dominan di lautan, dan mempunyai peranan penting dalam rantai makanan di ekosistern perairan, termasuk perairan mangrove (estuarine). Penelitian mengenai Copepoda di perairan mangrove Cilacap, Jawa Tengah, telah dilakukan pada bulan Oktober 1997 dan April 1998. Dari hasil identifikasi ditemukan sebanyak 25 jenis yang termasuk dalam 17 marga, 12 suku, dan 4 bangsa (ordo). Calanoida merupakan ordo yang paling besar, dengan jumlah anggota 17 jenis. Frekuensi kehadiran tertinggi ditemukan pada Acartia erythraea dan Pseudodiaptomus incisus, masing-masing 58,34% dan 52,08%. A. erythraea paling melimpah pada bulan April (rata-rata 7,81% dan 10,59%) dengan kepadatan maksimal 102 ind./l.; sedangkan P. incisus paling melimpah pada bulan Oktober (rata-rata 6,56% dan 14,73%) dengan kepadatan maksimal 62 ind./l.Keanekaragaman jenis Calanoida berkisar antara 0,424-0,849, kemerataan individu tiap jenis 0,256-0,429, kekayaan jenis 0,610-2,471, kesamaan jenis antara dua lokasi 0,182-0,933. Hasil analisis kluster pada musim dan waktu pengamatan yang berbeda, tidak terbentuk pengelompokan. Meskipun demikian terdapat kecenderungan pada St. 1, 2, dan 3 membentuk kelompok yang terpisah dari St. 4. Penyebaran dan kelimpahan Copepoda sangat dipengaruhi oleh salinitas. Kisaran salinitas pada bulan Oktober 18,1-31,7 %0 dan 9,2-29,1 %0 pada bulan April. Selain salinitas, pengaruh musim juga turut menentukan komposisi jenis dan kelimpahan Copepoda.

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Copepods is a dominant group of marine zooplankton, and has an important role in the marine food chain. Copepods lives in various habitats, in freshwater, estuarine, and marine. Information on copepods in Indonesia mostly came from expedition reports on East Indonesian waters. Nevertheless, information concerning copepods in mangrove waters (estuarine) is very limited. The Cilacap mangrove waters has a unique ecosystem. It has high estuarine biodiversity lives, in which of them is copepods. From this fact, a study on the taxonomy and community structure of copepods in Cilacap mangrove waters was conducted on October 1997 and April 1998.The aims of study is to know the diversity and fluctuation of copepods species, the relationship community structure of copepods with the environmental factors in Cilacap mangrove waters, to available information on description and illustration of copepods that area from two seasons.Twenty-five species belonging to 12 families was recorded. They include 17 species of Calanoida, three species of Poecilostomatoida, four species of Cyclopoida, and one species of Harpacticoida. Two species showed high frequency of occurrence and abundance, i.e. Pseudadiaptonius incises at dry season, and Acartia erytlhraea at wet season. This indicated that the two species were common and distributed more widely than others.The highest diversity and richness indices of copepods species were found in Sapuregel (St. 3) at two seasons, and Teluk Penyu had highest evenness index at dry season. Donan mouth river and Sapuregel had the highest similarity index at dry season. Cluster analysis resulted in one group at all study on October 1997 and April 1998. Stations 1, 2, and 3 had the highest relationship than station 4. The water conditions of Cilacap mangrove waters showed that salinity ranged from 9,2-31,7 %0 temperature ranged from 25-32°C, pH ranged from 6,58-8,74, turbidity ranged from 0-7 NTU, DHL ranged from 10,4-44,7 mg/l, and DO ranged from 4,40-8,52 mg/l."

"Telah dilakukan penelitian mengenai struktur komunitas dan sebaran spasial Bivalvia serta hubungannya dengan karakteristik lingkungan di Teluk Katania, Seram Barat, Maluku Tengah. Ada 5 stasiun penelitian yaitu : Pelita Jaya 1, Pelita Jaya 2, Pulau Buntal, Pulau Tatumbu, dan Pulau Burung. Anadara maculafa merupakan jenis Bivalvia yang kepadatannya tertinggi (2,5 individu/m2). Nilai H' (indeks keanekaragaman) Bivalvia tertinggi ada di Pulau Burung (H' = 0,958) dan terendah di Pulau Buntal (H' = 0,624). Indeks kemerataan J' tertinggi (J' = 0,843) terdapat di Pelita Jaya 1. indeks kesamaan Morisita C tertinggi adalah antara Pelita Jaya 2 dan Pulau Buntal (C = 0,92). Kondisi substrat di Pelita Jaya 2 dan Pulau Buntal mempunyai persentase Lumpur yang tinggi. Dengan analisis cluster, 5 stasiun penelitian terbagi menjadi 2 kelompok. Kelompok I terdiri atas stasiun Pelita Jaya 2 dan Pulau Buntal kemudian kelompok II terdiri atas Pelita Jayal, Pulau Tatumbu, dan Pulau Burung. Analisis diskriminan dengan faktor lingkungan substrat pasir halus dan lumpur juga membagi kelima stasiun menjadi dua kelompok yang sama seperti pada analisis cluster. Substrat lumpur mempunyai kontribusi yang tinggi (96,3 %). Tellina sp merupakan jenis yang penyebarannya luas sebab selalu hadir di setiap stasiun penelitian. Hasil analisis faktorial koresponden membentuk enam kelompok. Penyebaran spasial jenis jenis Bivalvia di 5 stasiun dari hasil analisis tersebut berdasarkan pada kepadatan tertinggi dari jenis jenis tertentu (lima kelompok) dan berdasarkan jenis-jenis yang selalu hadir di setiap stasiun (satu kelompok).

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Bivalvia, also known as Pelecypoda, is the second largest class in phylum Mollusca. This group has 28.000 species (Barth & Broshear, 1982) and about 1000 species of Bivalvia live in Indonesian waters (Nontji, 1987). Information about Bivalvia in Kotania Bay has not been known well. Based on those fact, a research on the community structure and spatial distribution of Bivalve in the waters of Kotania Bay was conducted in February 1996. The aim of study was to find out the relationship between Bivalvia community structure with environmental factors in the waters of Kotania Bay. The spatial distribution of Bivalvia in several small islands in Kotania Bay was also studied. Hopefully, the results can be used as basic information for father research.

The research was conducted in five stations, i.e. Pelita Jaya 1, Pelita Jaya 2, Buntal Island, Tatumbu Island, and Burung Island. The sampling method used in the study was belt transact. The water conditions measured were water temperature, salinity, and pH. The substrates were characterized by the sediment fractions. Temperatures in the research stations ranged between 29.5°C and 31 °C, the range of pH is between 7 and 8.4. Water salinities in the research stations varied between 22 % and 30 %. Substrates in the research stations mostly contained sand with the very high percentage of very coarse sand. Silt was the smallest fraction found in the substrate.

In five research stations, 32 species of Bivalvia belonging to 15 families were collected. Anadara maculata had the highest density (2.5 individulm2) of all Bivalvia species found. The highest H' value (diversity index) of Bivalvia was in Burung Island (H' = 0.958) and the lowest was in Buntal Island (H' = 0.624). The highest evenness index J' = 0.843 was found in Pelita Jaya 1. The highest similarity index was shown by Pelita Jaya 2 and Buntal Island. Substrates in Pelita Jaya 2 and Buntal Island were dominated by silt.

Cluster analysis at five research stations divided the stations into two groups. Group I, defined by Pelita Jaya 2 and Buntal Island. Group ii, defined by Pelita Jaya 1, Tatumbu Island, and Burung Island. Discriminant analysis based on two environmental factors, i.e. very fine sand and silts, also divided the stations into two similar groups as cluster analysis did. The silt factor had high contribution (96.3%) in separating the stations.

Factorial correspondence analysis classified the species of Bivalvia into six groups. Based on the highest density of the certain species (five groups) and on the common species found in all stations (one group). Among the species collected Tellina sp was the common species found in the five stations. Spondylus squamosus, Trachydarium subrugosum, and Vulsella vulsella were found only in Pelita Jaya 2. Pitar subpellucidus, Septifer hi/ocular-is, Fimbria fmbriata and Chama pacifica were found only in Burung island. The species of Bivalvia only found in Pelita Jaya 1 were Atrina vexillum, Tellina staurella, Chama ruderalis, Limaria fragilis, and Clycymeris pectunculus."

"Penelitian terhadap telur dan larva kerapu bebek (Cromileptes altivelis) dilakukan di Hatchery Skala Rumah Tangga Desa Air Saga, Tanjung Pandan, Belitung. Tujuan penelitian ini adalah untuk mengetahui kualitas telur yang didatangkan dari BBBL Lampung, derajat penetasan, pertumbuhan dan perkembangan larva selama 15 hari. Berdasarkan hasil penelitian diketahui bahwa telur ikan kerapu bebek dari BBBL Lampung mempunyai kualitas yang baik. Derajat penetasan telur sebesar 42%, laju pertumbuhan spesifik 0,55 dan indeks aktivitas kehidupan 0,384. Larva yang baru menetas (D-1) mempunyai kuning telur dan gelembung minyak untuk cadangan makanan. Proses penyerapan kuning telur hingga larva berumur 2 hari. Pada hari ke-3 larva masuk ke dalam tahap potslarva. Panjang total larva pada hari ke-7 3,1 mm; hari ke-13 4,3 mm; dan tumbuh dengan cepat mencapai 5 mm pada hari ke-15.

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Observation on eggs and the early life history of Cromileptes altivelis have been conducted in the Backyard Hatchery in the Village of the Air Saga, Tanjung Pandan, Belitung. The purpose of this study was to determine the quality of eggs which was transported from Lampung, hatching rate, growth, and development of larvae for 15 days. The hatching rate of eggs was 42%, the specific growth rate was 0,55 and survival index activity was 0,384. Newly hatched larvae (D-1) have egg yolk and oil bubbles to the proposed food. Yolk absorption processed to (D-2). At (D-3), the larvae were into the stadium of postlarvae. Morphological data showed that the total length of larvae on (D-7) was 3,1 mm, became 4,3 mm on (D-7) and grew faster to reach 5 mm on (D-15)."

"Perairan Prigi termasuk Wilayah Pengelolaan Perikanan (WPP) Samudera Hindia, merupakan kawasan dengan status pemanfaatan tinggi. Nelayan Prigi umumnya menangkap ikan-ikan pelagis dengan alat tangkap jarring, pancing tonda dengan menggunakan alat bantu penangkapan lainnya berupa rumpon. Pada umunmya para nelayan Prigi masih menangkap dengan peralatan sederhana, sehingga hasilnya kecil. Berdasarkan uraian tersebut diatas, maka perlu dilakukan penelitian yang terkait dengan strategi peningkatan produksi hasil tangkapan bagi Nelayan Pancing Tonda ini. Berdasarkan variabel yang menpengaruhi produktivitas pancing tonda antara lain adalah jumlah trip penangkapan,ukuran kapal, daya mesin, panjang tali, ukuran mata pancing, jumlah Anak Buah Kapal (ABK), pengalaman ABK dan nahkoda. Dengan mengunakan pengujian model Cobb Douglas , hasilnya menunjukan jumlah trip, jumlah ABK, Pengalaman ABK mempengaruhi hasil produksi . Jumlah trip paling berpengaruh terhadap produktivitas nelayan pancing tonda. Faktor-faktor produksi yang terdapat dalam model dapat menjelaskan perubahan hasil tangkapan dengan alat tangkap pancing tonda pada armada kapal sekoci sebesar 87,5% sedangkan sisanya yaitu 12,5% disebabkan karena faktor-faktor lain ataupun variabel ? variabel yang tidak termasuk dalampenelitian. Strategi yang dianggap tepat adalah : (i) perlu dilakukan penambahan waktu trip dan memperhatikan pengalaman ABK dan nahkoda kapal; (ii) perlu adanya pengembangan alat bantu penangkapan seperti Fish Finder dan pemakaian umpan yang lebih menarik bagi ikan sasaran dan(iii) pemberian pelatihan dan pengetahuan dasar tentang teknologi alat bantu penangkapan sesuai sifat dasar ikan yang menjadi sasaran penangkapannya.

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Prigi waters including the Regional Fisheries Management (WPP) of the Indian Ocean, is a different region on the status of high utilization. Prigi Fishermen generally catch pelagic fish with nets and fishing gear trolling lines by using the tools of rumpon other catching. In general, the fishermen are still experiencing the limitations of capture technology. With a simple fishing gear sehingaan average revenue per month small.

Based on the description above, it is necessary to research associated with increased production strategy for Fishermen Fishing catches this Trolling Variables that menpengaruhi productivity between assessments adalahjumlah trip fishing, boat size, engine power, length of rope, hook size, number of crew (ABK), the experience of ABK and helmsman. Using a Cobb model the results show the amount of trips,amount of ABK, ABK experience affect the results of production. The amount of trips the most influence on the productivity of fishermen fishing trolling lines. Production factors included in the model can explain the changes in the catch by fishing gear fishing boat trolling lines on a fleet of ships at 87.5% while the remaining 12.5% is due to other factors or variables - variables that are not included dalampenelitian.

In order to achieve optimal results the proposed strategies are: (i) the need to do additional trip time and attention to the experience of crew and ship captains, (ii) is necessary to arrest the development of assistive devices such as Fish Finder and use of bait is more attractive to fish targets and delivery training and basic knowledge of technology tools and the nature of the capture of fish that were targeted. "

"Ikan tongkol lurik Euthynnus affinis, (Scombridae) merupakan ikan besar yang banyak tertangkap di perairan Laut Jawa. Penelitian ini bertujuan untuk mengetahui komposisi sebaran ukuran ikan tongkol, panjang pertama kali tertangkap, hubungan panjang-berat, pola pertumbuhan, kebiasaan makanan, nisbah kelamin, Tingkat Kematangan Gonad (TKG), Indeks Kematangan Gonad, fekunditas dan diameter telur ikan tongkol yang didaratkan di PPI Labuan. Pengambilan sampel dilakukan pada bulan Mei, Juni, dan September 2012.Hasil penelitian menunjukkan bahwa sebaran frekuensi panjang cagak ikan tongkol yang ditangkap berkisar 38-69 cm ( x = 50 cm). Ukuran pertama kali tertangkap 47,8 cm dengan panjang cagak ikan yang paling banyak tertangkap berkisar 49-51 cm. Hubungan panjang-berat ikan tongkol bersifat allometrik negatif. Ikan tongkol memakan ikan pelagis kecil, cumi dan teri. Nisbah kelamin antara ikan jantan : betina (1:1,4). Tingkat Kematangan Gonad ikan termasuk TKG III dan IV hal ini menunjukkan bahwa ikan dalam masa pemijahan. Indeks Kematangan Gonad rata-rata adalah 4,55%. Faktor kondisi berkisar antara 1,38-2,22. Fekunditas telur berkisar antara 852.000 - 2.056.609 butir dengan rata-rata 1.352.382 butir. Sedangkan diameter telur berkisar 1,28 - 1,8 mm.

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Eastern little tuna Euthynnus affinis (Scombridae) is a pelagic fish which caught excessively in the Java Sea waters. The objective of this research is to determine the composition of these tuna size distribution, lenght at first capture, length-weight relationship, growth pattern, food content, sex ratio, gonad maturity level, gonado stomatic index, fecundity and eggs with diameter of their kind of fish caught and landed in PPP Labuan. Sampling was conducted in May, June and September 2012.The results showed that the frequency distribution of fork lenght caught ranged 38-69 cm (x =50 cm). Size of lenght at first capture is 47.8 cm and most of them ranging from 49-51 cm. Length-weight relationship is allometric negative. The food of this fish species are small pelagic fish, squid and anchovies. Sex ratio the male: female (1:1.4). Gonad maturity level of fish at TKG III and IV indicating that the fishes are in the spawning seasons. Gonad Maturity Index is 4.55%. The condition factor ranged from 1.38 to 2.22. Fecundity ranged from 852,000 - 2,056,609 eggs (average 1,352,382 eggs). While the eggs diameter ranged from 1.28 to 1.8 mm."

"Penelitian ekologi ikan kurau (Eleutheronema tetradactylum) dilakukan di perairan Bengkalis pada bulan September dan Oktober 2008. Perairan Bengkalis sebagai salah satu penghasil ikan kurau di Propinsi Riau. Untuk mendukung kelestarian ikan kurau telah dilakukan kajian ekologi meliputi kimia dan fisika oseanografi, plankton dan benthos. Hasil analisa diperoleh nilai derajat keasaman perairan Bengkalis masih bagus dan masih tergolong normal untuk perairan pantai. Kandungan oksigen, zat hara fosfat, nitrat, ammonia masih normal sebagai perairan pantai dan tergolong perairan cukup subur bahkan ada beberapa area yang sangat subur. Kondisi arus bulan September dan Oktober 2008 didapatkan dominan bergerak ke arah barat laut menelusuri Selat Malaka dari arah tenggara dan ini sesuai dengan kondisi pasang-surut yang dominan sedang surut. Suhu bagian permukaan bulan September dan Oktober 2008 didapatkan relatif lebih panas dibandingkan dengan bagian tengah ataupun dengan bagian dekat dasar. Suhu di bagian barat perairan Bengkalis dari bagian permukaan sampai dekat dasar didapatkan relatif lebih panas dibandingkan dengan sebelah timurnya, diduga ada sumber panas dari arah barat lautnya (Selat Malaka). Salinitas bagian permukaan bulan September dan Oktober 2008 didapatkan relatif lebih tinggi dan polanya relatif hampir sama dengan bagian permukaan. Salinitas di bagian barat laut dari bagian permukaan sampai dekat dasar didapatkan relatif lebih tinggi dibandingkan dengan sebelah barat dan timurnya, ini menggambarkan bahwa salinitas tinggi melewati perairan Bengkalis atau Selat Malaka dari arah Samudera Hindia atau sebaliknya dari arah Laut Cina Selatan. Keberadaan plankton dan benthos di perairan ini sangat mendukung sebagai makanan ikan ikan kurau. Ekologi perairan Bengkalis merupakan habitat ikan kurau yang perlu dipertahankan. Perairan Bengkalis masih termasuk perairan yang masih dapat dilakukan kegiatan budidaya biota laut, namun demikian faktor lingkungan lainnya harus diteliti terlebih dahulu.

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Research on Kurau ecology (Eleutheronema tetradactylum) was done in Bengkalis Marine in September and October 2008. Bengkalis waters is one of Kurau fish producer in Riau Province and to support Kurau fish conservation, an ecological study was done, including chemistry, physical, oceanographic, plankton and benthos analysis. The analysis results showed that the acidity value in Bengkalis waters was still good and normal for coastal ecology. The contents of Oxygen, phosphate, nitrate and ammonia were still normal as a coastal waters and it is classified as a quite lush waters, some even were very lush. The Current condition in September and October 2008 were dominantly moved towards the northwest across the Malaka Strait from the southeast and it was in line with the tidal condition that was dominantly receding. The Surface temperature found in September and October 2008 were relatively hotter than in the middle part or the near the base. The temperature in the western part of Bengkalis waters (from the surface) to the base was higher than in its eastern part. It was predicted that there was a heat source coming from the nortwest (Malaka Strait). The surface salinity obtained in September and October 2008 were relatively higher and its pattern was relatively almost the same as its surface part. The salinity in the northwestern part from the surface to near the base was higher than in the western and the eastern part. It shows that the high salinity moves through the Bengkalis waters or Malaka Strait from the Indian Ocean direction or conversely it moves from the South China Sea. The presence of plankton and benthos in the waters is very supportive as the food source for kurau fish. The Bengkalis waters ecology that is the kurau fish habitat must be conserved. Bengkalis waters is still included as a water that can still be utilized for cultivating aquaculture activities, however the other environmetal factors must be researched first."

"Peningkatan gas CO2 di atmosfer dapat mengakibatkan peningkatan suhu rata-rata di bumi yang dapat menyebabkan perubahan iklim. Padang lamun, salah satu komunitas penyusun ekosistem pesisir pantai memiliki fungsi yang dapat dipertimbangkan sebagai penyerap dan penyimpan karbon. Penelitian ini bertujuan untuk menganalisis laju penyerapan karbon dan potensi tiap jenis lamun sebagai penyimpan karbon serta mengestimasi total kandungan karbon komunitas lamun. Penelitian dilakukan pada bulan Januari - Juni 2013 di Pulau Pramuka, Kepulauan Seribu, DKI Jakarta. Data diperoleh dengan menggunakan metode transek kuadrat untuk menentukan struktur komunitas dan biomassa. Pengukuran pertumbuhan dan produksi daun lamun dilakukan dengan metode penandaan daun, sementara untuk produktivitas serasah menggunakan metode kurungan. Analisis kandungan karbon dalam bagian tanaman lamun dan serasah lamun dilakukan dengan metode Walkley & Black. Hasil menunjukan bahwa rata-rata laju penyerapan karbon di Pulau Pramuka sebesar 0,53 gC/m2/hari. Dua jenis lamun yang mempunyai laju penyerapan karbon yang tinggi yaitu Thalassia hemprichii (1,69 gC/m2/hari) dan Cymodocea rotundata (0,65 gC/m2/hari), sedangkan jenis lamun yang memiliki cadangan karbon yang tertinggi yakni Enhalus acoroides (139,95 gC/m2) diikuti oleh Thalassia hemprichii (56,87 gC/m2) dan yang terendah ditemukan pada Halophila ovalis (1,91 gC/m2). Rata-rata cadangan karbon pada komunitas lamun Pulau Pramuka sebesar 200,90 gC/m2. Berdasarkan estimasi, total luas padang lamun di Pulau Pramuka sebesar 59,25 ha, sehingga total kandungan karbon yang diperoleh yakni 119,03 ton atau setara dengan 2,01 ton/ha dan jumlah CO2 yang diserap oleh padang lamun Pulau Pramuka yakni sekitar 436,84 ton CO2.

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The increase of CO2 in the atmosphere may caused the increasing average temperature of the earth, which could cause climate change. Seagrass beds, one of the constituent communities and coastal ecosystems has a function that can be considered as a carbon sink and carbon stock. This study aims to analyze the rate of carbon sequestration and the potential of each species of seagrass as a carbon sink as well as estimating total carbon stock in seagrass communities. The study was conducted in January - June 2013 in the Pramuka Island, Seribu Islands, Jakarta. Data obtained using quadratic transect method for determining community structure and biomass of seagrass. Measurement of seagrass growth and leaf production is done by the leaf marking method, while for leaf litter productivity using cages method. Analysis percentage of carbon in the plant parts of seagrass and seagrass leaf litter carried by Walkley & Black method.

The results show that the average rate of carbon sequestration at Pramuka Island is 0,53 gC/m2/day. There are two species of seagrass that have a high rate of carbon sequestration is Thalassia hemprichii (1,69 gC/m2/day) and Cymodocea rotundata (0,65 gC/m2/day). While seagrass species that has the highest carbon stocks that Enhalus acoroides (139,95 gC/m2) followed by Thalassia hemprichii (56,87 gC/m2) and the lowest was found in Halophila ovalis (1,91 gC/m2). Average carbon stock in seagrass communities Pramuka Island at 200,90 gC/m2. Based on estimates​​, the total area of ​​seagrass beds at Pramuka Island of 59,25 ha. The total carbon stock can be determined that 119,03 tons, or equivalent to 2,01 tons/ha and the amount of CO2 absorbed by seagrass Pramuka Island which is about 436,84 tons of CO2."

"Penelitian ini bertujuan untuk menduga jumlah produksi penangkapan dan jumlah upaya penangkapan kerapu sunu yang dapat memberikan keuntungan optimal baik secara ekonomi maupun secara biologi. Parameter ekonomi yang digunakan dalam penelitian ini adalah harga, biaya input dengan menggunakan Indeks Harga Konsumen (IHK) Provinsi Sulawesi Tenggara. Selain itu, dalam penelitian ini juga menggunakan parameter biologi seperti pertumbuhan biologi, koefisien daya tangkap, daya dukung lingkungan yang diestimasi dengan menggunakan Surplus Produksi Walters dan Hilborn yang mengikuti pertumbuhan logistik dan Surplus Produksi CYP yang mengikuti pertumbuhan Gompertz. Alat tangkap yang dioperasikan adalah pancing dan bubu lipat.Hasil perhitungan pada tingkat bunga 34 persen pertumbuhan logistik menunjukkan bahwa biomassa optimal (x*) 47,09 ton per tahun, penangkapan optimal (h*) 52,37 ton per tahun dan upaya optimal (E*) 44.776 per trip per tahun, rente ekonomi diperoleh sebesar Rp 3,648 milyar per tahun, sedangkan model pertumbuhan Gompertz menunjukkan bahwa biomassa optimal (x*) 9,09 ton per tahun, penangkapan optimal (h*) 43,92 ton per tahun dan upaya optimal (E*) 36.379 per trip per tahun, sedangkan rente ekonomi atas sumberdaya kerapu sunu diperoleh sebesar Rp 3,108 milyar per tahun. Persentase tingkat pemanfaatan JTB (jumlah tangkapan yang dibolehkan) sebesar 90,57% dengan effort JTB sebesar 50,85%.

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This study aims to predict the amount of production, arrests and number of coral trout grouper fishing effort that can provide optimal benefit both economically and biologically. Economic parameters used in this study are prices, input costs by using the consumer price index (CPI) southeast Sulawesi province. In addition, in this study also uses biological parameters such as growth biology, capture power coefficient, the estimated carrying capacity of the environment by using surplus production Walters and Hilborn who follow logistic growth and the surplus production CYP follow Gompertz growth. Fishing gear is fishing and fish traps operated folding.

The results of calculations at an interest rate of 34 percent growth in logistics show that optimal biomass (x*) 47,09 tons per year, optimal harvest (h*) 52,37 tons per year and the optimal effort (E*) 44.776 per trip per year with economic resources rent Rp 3,648 billion by logistic growth of model and Gompertz growth of model showed optimal biomass (x*) 9,09 ton, optimal harvest (h*) 43,92 ton and optimal effort (E*) 36.379 per trip with economic resources rent Rp 3,108 billion. JTB percentage utilization rate (the number of attempts allowed) of 90,57 % with 50,85 % of JTB effort."

"Statistik yang mencatat produksi secara akurat untuk jenis ikan kurisi di Indonesia baik secara nasional maupun daerah, belum ada. Untuk itu dilakukan penelitian yang dapat memberikan informasi mengenai status dan stok potensi ikan kurisi jenis ini di Laut Jawa bagi pemangku kepentingan dan pemerintah. Hal tersebut dilakukan dengan menganalisis status stok ikan kurisi dengan metode Swept Area, mengkaji selektivitas alat trawl yang dapat menjamin rekrutmen ikan kurisi dan menganalisis semua informasi yang berguna bagi pengelolaan ikan kurisi sehingga perikanan kurisi tetap lestari di perairan Tanjung Karawang. Hasil penelitian menentukan bahwa stok ikan kurisi di daerah penangkapan di Tanjung Karawang adalah 60.445 kg/m2 sedangkan hasil penangkapan ikan kurisi sebesar 765,1 kg/m2 atau 1,26 %. Ternyata jaring trawl yang berkantung 3 inci lebih selektif daripada jaring trawl berkantung 2 inci dan 1 inci. Untuk kelestarian perikanan ikan kurisi di Laut Jawa dianjurkan memakai jaring trawl dengan kantung bermata jaring 3 inci.

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In fact in Indonesia there has been not an accuratedy been no production statistics are recorded accurately for Kurisi fish species both national and local. This study is expected to provide information on the status and potential of kurisi stocks type this in the Java Sea. Especially for stakeholders and government. Analyzing the status kurisi stocks with Swept area method in the Java Sea. Assessing trawl selectivity tool that can ensure recruitment Kurisi fish in the Java Sea. Analyzing all the useful information for the management of fish Kurisi so Kurisi remain sustainable fisheries in the Java Sea. Stock assessment and selectivity of trawling on fish Kurisi. In the waters of Tanjung Karawang, Java Sea. The study found that fish stocks in the area Kurisi arrest in Tanjung Karawang is (Maximum Sustainable Yield) 60 445 kg/m2 while the catch Kurisi of 765.1 kg/m2 or 1.26%, meaning not happen over fishing. Turns trawl nets pockets 3 inches more selective trawl nets pockets than 2 inches and 1 inch. Seen from a lot of fish that escaped from the bag Kurisi trawl nets as follows: the level of the break-out fish in bag 3 inches by 80.8%, on a 2-inch by 34.5% and the 1-inch by 14.9%. For the sustainability of fisheries in the Java Sea Kurisi fish can also be used trawl nets with 3-inch-edged pockets."