bluuebunny/crossref_metadata_2025 huggingface dataset:
EFFECT OF CALCIUM SUPPLEMENTATION ON GIANT FRESHWATER PRAWN (Macrobrachium rosenbergii) MOULTING AND EGG QUALITY
Authors: Khasani Ikhsan , Ridzwan Narita Syawalia , Jones Clive
Published: October 2016

A breeding program for giant freshwater prawn has been developed in Indonesia to supply good quality prawn seed to industry. To achieve the goal of the program, optimum conditions of both environment and nutrition must be provided. Calcium is the main compound of the prawn carapace, influencing moulting processes, especially during the premating moult. The effect of calcium supplementation in the prawn feed on moulting process and egg quality of giant freshwater prawn, Macrobrachium rosenbergii, was investigated. Experimental units consisted of 300 L plastic tanks stocked with 4 adult prawns comprising 3 female and 1 male. A standard prawn feed containing 30.39% crude protein; 0.82% Ca and 0.47% P was used as the experimental diet. A complete randomized design was‘applied in the study with 5 dosage levels of dicalcium phosphate i.e. 0%, 2%, 4%, 6%, and 8% with 4 replicates. Prawns were reared over 45 days. There were significant differences (P<0.05) in premoult, moult, and egg hatching rate, while no significant differences in intermoult or fecundity were observed (P>0.05). Egg hatching rate increased liniearly from 26.5%±9.9% to 50.8%±10.3% as calcium dosage increased from 0% to 8%. The number of eggs per spawn was not significantly different (P>0.05), ranging from 40,096 to 46,131 for females weighing 30.19 to 32.94 g. The results of this study suggest that giant freshwater prawns require dietary calcium supplementation to support moulting process and egg quality when reared in soft water.
FATTY ACID COMPOSITION AND PROSTAGLANDIN CONTENT OF THE RED SEAWEED Gracilaria sp. FROM INDONESIA
Authors: Illijas Muhammad Ikbal , Arifuddin Arifuddin , Saleh Luqman , Itabashi Yutaka
Published: October 2016

High content of polyunsaturated fatty acids (PUFAs) such as arachidonic and eicosapentaenoic acids are typical for the red alga. Analysis of fatty acid composition and prostaglandin content was conducted in the red alga Gracilaria sp. from Indonesia. Total lipid of the alga was extracted with CHCl3-MeOH (2:1, v/v). Analysis of the fatty acids composition was performed on gas chromatography (GC) equipped with omega wax column (30 m x 0,32 mm i.d., Supelco, PA, USA) and analysis of prostaglandins were carried out by HPLC on ODS column (Mightysil RP-18 GP, 250 mm x 4.6 mm, 5 μm). The content of fatty acids high for were palmitic acid (50%) and arachidonic acid (26.9%), whereas prostaglandin E2 was identified and found lower concentration (44.2 μg/gram total lipid).
STUDY OF VERTEBRAL MORPHOGENESIS OF COBIA LARVAE, (Rachycentron canadum) BY DOUBLE STAINING METHODS
Authors: Nasukha Afifah , Aslianti Titiek , Priyono Agus
Published: October 2016

Vertebral development is one of the main indicators of organism growth. The aim of this study was to know the vertebral development of cobia Rachycentron canadum in larval stage (20 day post hatch). Vertebral assay was done with double staining methods. The result showed that cobia larvae from 0 dph up to 5 dph did not have cartilage. On 5 dph up to 10 dph had pre cartilage phase composed by calcium and on 10 dph up to 18 dph were cartilage phase and marked with blue color by alcian blue. Vertebral was formed perfectly as bones on 18 dph marked with red color by alizarin red. On 20 dph, cartilage had been fully transformed to bones, and the segment of vertebral was clearly formed. Measurement showed that length of cobia vertebrae was 20.20±3.90 mm, vertebrae segment was 0.91±0.11 mm and number of vertebral segments were between 25-26 segments.
PROPOLIS, THE ALTERNATIVE NATURAL MATERIAL FOR SEX REVERSAL IN TILAPIA
Authors: Ariyanto Didik , Robisalmi Adam , Larasati Alien Karlina
Published: October 2016

Growth of tilapia male is better than female. Practically, cultured of all male population are more efficient than that of mixed sex population. Sex reversal with 17-methyltestosterone hormone is the most popular technique to make all or nearly all male tilapia. But, alternative substitution materials for sex reversal must be found due to limited application of this synthetic hormone that caused of its carcinogenic potential on human body. Besides that, 17-methyltestosterones are also suspected as the unfriendly material for environment. Several early studies were conducted to find the alternative materials for sex reversal in tilapia. One of the highly potential material found is aromatase inhibitors, the materials which are function to inhibit the secretion of aromatase, the catalyst enzyme in the bio-synthetic of estrogen from androgen. Due to the chemical characteristic materials and relatively high price of aromatase inhibitor, we tried to find the natural material which has similar composition or function to that compound. One of the natural suspected materials which has similar function with aromatase inhibitors is propolis. Chrysin as apart of flavonoid compound found in the propolis shows the most potent inhibitors of aromatase. Early study showed that application of propolis up to 3 mL.kg-1 of feed resulted the highest percentage of male in tilapia. Based on that study, the optimum dosage of propolis for sex reverse of the tilapia has not been known. This study was conducted to know the optimum dosage of a commercial propolis for sex reversal in tilapia, especially in NIFI red tilapia. The dosages proposed in this study were 3, 4, 5 and 6 mL propolis.kg-1 of feed. Sex reversal was carried out in aquarium for 35 days. Rearing of fingerling fish for 2 months was conducted in hapas suspended in earthen pond. The result showed that application of 5 mL propolis.kg-1 of feed resulted the highest proportion of male, which up to 76.67%. Application of all propolis dosages in this study did not affect to the survival rate and the abnormality of fish.
REPRODUCTIVE ASPECTS OF CULTURED HUMPBACK GROUPER (Cromileptes altivelis) FOR SUPPORTING SEED PRODUCTION
Authors: Sembiring Sari Budi Moria , Hutapea John Harianto , Muzaki Ahmad , Wardana Ida Komang , Astuti Ni Wayan Widya , Andamari Retno
Published: October 2016

Humpback grouper (Cromileptes altivelis) has been successfully spawned in 2000 by IMRAD (Institute of Mariculture Research and Development) and there are already the third generation (F3) currently. The reproductive aspects need to be studied to support the success of seed production. Humpback grouper reared in floating cage (F1 and F3) had matured (gonad stage 4) while F2 fish reared in concrete tanks has spawned. Gonadal maturity stage of 38 fishes from first generation (F1) and 35 fishes from the third generation were observed in June 2013 and compared to gonadal maturity stage of 18 fishes from the second generation observed in June 2009. Samples were measured in total length and body weight and gonads were taken for histology preparation to determine gonadal maturity stage and the sex. From the histological observation of the gonads, it showed that all female humpback grouper were in early maturity stage (stage I and II) with gonadal maturity index between 0.12% and 5.45%. Further, it was observed that the same gonad was found in different maturity stage and concluded that humpback groupers were multiple spawners (asynchronous). By determining gonadal maturity level, it was also known the minimum size for grouper ready to spawn.
ANALYSIS OF IMMUNE RESPONSES ON TRANSGENIC TIGER SHRIMP (Penaeus monodon) AGAINST PATHOGENIC BACTERIUM Vibrio harveyi
Authors: Parenrengi Andi , Tampangallo Bunga Rante , Tenriulo Andi
Published: October 2016

Vibriosis is one of main diseases of the black tiger shrimp Penaeus monodon infected by pathogenic bioluminous bacterium Vibrio harveyi that can cause mass mortalities in shrimp culture. The bacteria can also trigger the disease white spot syndrome virus (WSSV). An effort to produce shrimp disease-resistant strains has been done through transgenesis technology with antiviral gene transfection. By this technology, it is expected an increase in the immune response of shrimp in a variety of diseasecausing pathogens. This study aimed to determine the immune responses (total haemocytes, haemocyte differentiation, and phenoloxydase activity) of transgenic tiger shrimp against pathogenic bacterium V. harveyi. Research using completely randomized design, which consists of two treatments and three replications. Test animals being used were transgenic and non-transgenic shrimp with size, weight 3.93±1.25 g and a total length of 7.59±0.87 cm. Treatments being tested were the injection of bacterium V. harveyi (density of 5x106 cfu/mL) of 0.1 mL/individual on transgenic (A) and non-transgenic shrimp (B). Immune response parameters such as total haemocytes, haemocyte differentiation, and phenoloxydase activity were observed on day 1, 3, and 6 days after challenging. Data were analyzed using t-test by SPSS software. The results showed that the total haemocyte of transgenic shrimp was not significantly different (P>0.05) from non-transgenic shrimp, but haemocyte differentiation and phenoloxydase activity were significantly different (P<0.05) especially on sixth days after being exposed to the bioluminescent bacteria. The study results implied that transgenic shrimp has a better immune response compared than non-transgenic shrimp.
DEVELOPMENT OF PRIMARY CELL CULTURE FROM TAIL EPIDERMAL TISSUE OF KOI CARP (Cyprinus carpio koi)
Authors: Gardenia Lila , Koesharyani Isti
Published: October 2016

Primary cell culture from tail epidermal tissue of koi carp (Cyprinus carpio koi) was developed. Cells were grown in Leibovits-15 medium supplemented with 20% fetal bovine serum and antibiotics (Penicillin/Streptomycin and Kanamycin). Cell growth was observed in a range of incubation temperature (17oC±2oC, 22oC±2oC, 27oC±2oC, and 32oC±2oC) in order to determine the optimum temperature. The cells were able to grow at a range of temperature between 17oC to 32oC with optimal growth at 22oC. Primary cells infected with koi herpes virus produced typical cytopathic effects characterized by severe vacuolation and deformation of nuclei, which is consistent with those of previous reports. Artificial injection experiment by using supernatant koi herpes virus SKBM-1 isolate revealed that it could cause 90% mortality in infected fish within two weeks. PCR test with Sph I-5 specific primers carried out with DNA template from supernatant virus, pellet cell, and gills of infected fish showed positive results in all samples (molecular weight of DNA target 290 bp). The cells were found to be susceptible to koi herpes virus and can be used for virus propagation.
THE CORRELATION BETWEEN WET AND DRY WEIGHT OF INTESTINE AND BODY WITHOUT INTESTINE OF SEA CUCUMBER (Holothuria scabra)
Authors: Indriana Lisa Fajar , Kunzmann Andreas
Published: October 2016

Holothuria scabra is a commercial tropical sea cucumber species, which has been exploited severely in recent years. This study was conducted at the Mataram Marine Bio Industry Technical Implementation Unit for 20 days aiming to determine the relationship between wet and dry weight of sea cucumbers with and without colon. Results of regression analysis between wet and dry weight show a significant positive correlation. The relationship between wet and dry weight without the colon is y = 0.1685x – 0.2319 (R2 = 0.9236) whereas the wet and dry wet of the intestine is y = 0.075x + 0033 (R2 = 0.791).
ISOLATION AND GROWTH OF DINOFLAGELLATE, Scrippsiella sp. AND DIATOM, Melosira cf. moniliformis IN CONTROLLED CONDITIONS
Authors: Iba Wa
Published: October 2016

The growth of the dinoflagellate, Scrippsiella sp. from Narragansett Bay, USA and the chain-forming benthic diatom, Melosira cf. moniliformis from Kendari Bay, Indonesia was evaluated under optimized laboratory conditions to investigate potential new candidates for shrimp aquaculture hatchery feeds. Isolation of microalgae was performed using capillary pipets in f/8-Si for Scrippsiella sp. and f/2 for M. cf. moniliformis. Isolated cells were placed in an incubator with a photoperiod of 12:12 hour (light : dark cycle), at light intensities of 62-89 μmol photons.m-2.s and at temperature of 20oC. Microalgae cells were cultured in 150-mL Erlenmeyer flasks containing 100 mL of f/2-Si medium for Scrippsiella spin triplicates and in 50-mL culture tubes containing 20 mL of f/2 medium for M. cf. moniliformis in four replicates. The cells in culture flasks were used in cell counting experiments while those in tubes were for fluorometer trials. Growth evaluation was conducted every 2-3 days. The diatom, M. cf. moniliformis was in logarithmic phase when observed at 2 to 7 days after inoculation and showed a high growth rate (μ = 0.52 day-1) and high division rate (k = 0.76 day-1, 1 division every 1.3 days). Logarithmic phase of Scrippsiella in culture flasks was started on day 7 to 30 (μ = 0.17 day-1 and k = 0.25 day-1 or 1 division every 4 days). In culture tubes, Scrippsiella sp. reached logarithmic phase at day 21 to 47 (μ = 0.12 day-1 and k = 0.18 day-1, 1 division every 5.65 days). This study indicates that M. cf. moniliformis can be used for aquaculture hatcheries feed but further study for the nutrition composition is needed. Scrippsiella sp. is potentially toxic for aquaculture at high densities, therefore they should be assessed carefully if used for aquaculture feeds.
THE ROLE OF MACROBENTHIC COMMUNITIES AS AN INDICATOR FOR THE FERTILITY OF MANGROVE POND: CASE STUDY AT BLANAKAN, SUBANG, WEST JAVA
Authors: Haryadi Joni , Hadiyanto Hadiyanto , Patria Mufti Petala
Published: October 2016

Macrobenthic in mangrove ecosystems plays an important role as removal particles from the water column to the sediments. Ecology indexes of macrobenthic communities were used in this study as an indicator for the fertility of mangrove pond ecosystems. The study was carried out at mangrove pond in Blanakan, West Java. Data was collected from four sampling sites: opened pond (TB), sylvofishery pond (TS), sedimented pond (TT), and conservation pond (TP). Some ecological indexes such as Margalef’s Index (R), Shannon-Wiener Index (H’), Pielou Evenness Index (E), and Simpson Dominance Index (D) were used to analyze macrobenthic communities. The results showed that infaunal macrobenthic communities were stable at TP with R: 1.91±0.42, H’: 1.59±0.30, E: 0.74±0.14, and D: 0.29±0.12. They were unstable at TB with R: 1.63±0.80, H’: 1.36±0.32, E: 0.74±0.06, and D: 0.35±0.07. The macrobenthic communities can be used as indicator for the fertility of mangrove pond in Blanakan, West Java.
THE USE OF SEAWORM MEAL IN MATURATION DIET AS PARTIAL SUBSTITUTION OF FRESH DIET FOR POND REARED TIGER SHRIMP BROODSTOCK
Authors: Laining Asda , Usman Usman , Syah Rachman
Published: October 2016

The purpose of this experiment was to evaluate the effects of using seaworm meal in artificial diet as partial substitution of freshfeed for maturation of tiger shrimp. This experiment started by growing-out tiger shrimp with initial weight around 60 g for four months until reaching maturation phase where shrimp weight were over 90 g for female. Tiger shrimp was selected and stocked into 10 ton concrete tank with stocking density of 50 shrimps with ratio of female : male of 1:1. Dietary treatments were different levels of seaworm meal at 0% (SW0), 10% (SW10) and 20% (SW20). SW0 was positive control without seaworm meal but breeder was fed with frozen seaworm. Test diets were fed as a combination of 60% test pellet and 40% fresh feed. Artificial insemination was carried out for all females before ablation to obtain fertile eggs. Results showed that after ablation, number of female matured was highest in group fed SW10 (13 breeders) and the lowest in female fed control group (7 breeders). Number of female spawned was also highest in female fed SW10 and the lowest was in positive control. Fecundity was very low in all treatments ranged from 12,000-79,700 eggs/spawn. Even though female bearing spermatophore through insemination, number of spawning hatched was very low, only three spawned in each of SW0 and SW10 and two spawned in SW20. Based on number of breeders matured and spawning rate, breeder fed with SW10 gave better performance than other two diets. Technique of artificial insemination needs to be improved to increase the number of fertile eggs.
THE EFFECT OF PROBIOTIC ON IMMUNITY IMPROVEMENT IN THE FRY AND SPAWNER PRODUCTION OF PACIFIC WHITE SHRIMP Litopenaeus vannamei
Authors: Haryanti Haryanti , Muzaki Ahmad , Sembiring Sari Budi Moria , Fahrudin Fahrudin , Permana I Gusti Ngurah , Wardana Ida Komang
Published: October 2016

In order to improve immune system of Pacific white shrimp L. vannamei from any kinds of diseases, various probiotic agents were tested such as Bacillus sp. BC, Alteromonas sp. BY-9 and mixed of both. The probiotics were cultured and added directly to the larval rearing tank (106 cfu/mL equal to 0.5 liter/m3) up to PL-12. In cultured shrimp spawners, probiotic was mixed with feed coated with chitosan, and without adding probiotic as control. In the present experiment, shrimp fry and spawners were reared in tank capacity of 5 m3 and 8 m3. Immunity response was analyzed by quantitative value of the immunity related gene expression with RTqPCR. The results showed that survival rate of shrimp fry cultured with mixed probiotic was 63.16% (PL-8) and 53.46% (PL-12), while control 13.35% (PL-8) and 12.48% (PL-12) respectively. The number of shrimp hemocytes starting from 420 to 530.5 x 104 cells/mL and after challenged with WSSV (for 72 hrs exposure) between two treatments of Alteromonas sp. BY-9 and Bacillus cereus BC was not significantly different P>0.05 (402.5 and 432.5 x 104 cells/mL), while in mixed probiotic and control treatments were 391.75 and 229.0 x 104 cells/mL, respectively. The analysis of immunity gene expression revealed that the use of probiotic from larval stages up to spawner has been proved in increasing immunity responses quantified from ProPO activating system (prophenoloxidase/proPO) as much as 1.6-2.0 fold, clotting system (transglutaminase, clotting protein) of 1.5-2 fold, Antimicrobial Peptide System (anti-LPS factor, crustin, lysozyme, penaiedin2) of 1.5-2.8 fold, and Antioxidant defense mechanism (superoxidase dismutase/SOD, glutathione peroxidase/GPx) of 1.8-2.0 fold compared to control.
DETECTION, TRANSMISSION, AND EXPRESSION cDNA GROWTH HORMONE GENE (PhGH) OF STRIPPED CATFISH IN F-1 TRANSGENIC AFRICAN CATFISH
Authors: Marnis Huria , Iswanto Bambang , Suprapto Rommy , Imron Imron , Dewi Raden Roro Sri Pudji Sinarni
Published: October 2016

In previous study, the fast growth transgenic founder of African catfish was produced harboring a growth hormone (GH) gene construct containing a stripped catfish growth hormone (PhGH) cDNA. This study was conducted to investigate transgene (PhGH) transmission and expression in F-1 transgenic African catfish. The transgenic founders (female) were crossed with non-transgenic (male) to produce heterozygous F-1 progeny. PhGH gene was detected in the embryo, larvae, and seed of the transgenic F-1 using PCR method. Expression levels of transgene in embryo and larvae were analyzed using real-time quantitative PCR (qPCR) method. The transgene was detected in embryo, larvae and seed of F-1 transgenic African catfish. Founder could transmit PhGH gene to transgenic F-1 lines in ranged 36% to 48%. Expression level of Phgh gene in embryo was higher than that of the larvae; whereas in the embryo was 1.5 x 105 - 5.2 x 105 copies or 0.49-9.82 fold, while in the larvae was 1.1 x 105 - 2.5 x 105copies or 0.19-5.80 fold.
ANGKA ACUAN SASARAN UNTUK PENGELOLAAN PERIKANAN UDANG LAUT ARAFURA DENGAN TUJUAN BERAGAM
Authors: Purwanto Purwanto
Published: October 2016

Kriteria pengelolaan perikanan dalam kerangka pembangunan nasional, yaitu pro-growth, pro-poor, pro-job dan pro-environment, mengarahkan pengelolaan perikanan udang di Laut Arafura untuk mengoptimumkan produksi lestari dan keuntungan perikanan, serta meningkatkan keuntungan per kapal dan peluang kerja sebagai nelayan. Masing-masing tujuan tersebut perlu ditetapkan angka acuan sasarannya yang diharapkan dicapai dalam pengelolaan perikanan. Mengingat tujuan tersebut saling bertentangan, sehingga tidak dapat dicapai bersamaan, perlu ditentukan tingkat kompromi optimal diantara tujuan tersebut dan angka acuan sasarannya. Tulisan ini menyajikan model pemrograman matematika untuk optimisasi dengan empat tujuan pengelolaan, serta menggunakannya untuk mengestimasi angka acuan sasaran dan jumlah optimal kapal penangkap. Hasil optimisasi dengan pemberian bobot prioritas yang sama terhadap empat tujuan pengelolaan perikanan dalam kerangka pembangunan nasional menunjukkan bahwa angka acuan sasaran pada tingkat kompromi optimal dicapai dengan pengendalian upaya penangkapan pada tingkat yang setara dengan daya tangkap 512 kapal pukat udang 130 GT. Angka acuan sasaran yang sama dihasilkan dari optimisasi dengan pemberian bobot prioritas yang lebih tinggi terhadap dua tujuan pengelolaan perikanan sesuai dengan Pasal 6 Undang Undang Perikanan tahun 2004.

The criteria of fisheries management undertaken in a framework of national development, particularly pro-growth, pro-poor, pro-job and pro-environment, guide the management of shrimp fishery in the Arafura Sea to optimising shrimp production and fishery profit, and increasing per vessel profit and job opportunity as fishers. As those objectives were conflicting that could not be achieved simultaneously, it is necessary to seek an optimal compromise amongst several conflicting objectives and to estimate their target reference points. This paper presents a mathematical programming model accommodating four objectives of fisheries management, and the utilisation of this for estimating the target reference points and the optimal number of fishing vessels. The result of optimisation shows that target reference points at the optimal compromise levels for the four conflicting objectives, with equal priority, of fisheries management supporting the national development could be achieved by controlling fishing effort at the level equal to fishing power of 512 shrimp trawlers of 130 GT. The same target reference points resulted from the analysis providing higher priority to the objectives of fisheries management stated in Article 6 of Fisheries Act of 2004.
STRATEGI MENGATASI KEMISKINAN UNTUK ANAK BUAH ‘BAGAN’ DI SUMATERA BARAT
Authors: Stanford Richard , Haluan John , Wiryawan Budy , Bengen Dietriech G. , Febriamansyah Rudi
Published: October 2016

Penelitian ini bertujuan merumuskan strategi mengatasi kemiskinan pada anak buah bagan di Sumatra Barat. Metoda kuantifikasi pendekatan Sustainable Livelihoods Approach (SLA) digunakan dalam penelitian ini dan diterapkan di dua kampung nelayan yaitu Sungai Pinang dan Ampang Pulai, di Provinsi Sumatera Barat. Wawancara dilakukan pada 52 rumah tangga nelayan yang bekerja di sektor perikanan bagan sebagai anak buah, kapten atau sebagai pemilik bagan. Analisis data menggunakan multi-dimensional scaling berdasarkan pengelompokkan ke dalam enam jenis sumber daya yaitu alam, keuangan, manusia, sosial, kelembagaan dan sumber daya buatan. Hasil penelitian ini menjelaskan bahwa pemilik kapal bagan memiliki sumber daya buatan, keuangan dan manusia yang lebih tinggi daripada anak kapal atau buruh tetapi tidak terdapat perbedaan untuk sumber daya alam, sosial dan kelembagaan. Lembaga perikanan kurang mendukung semua dari bagan sektor. Program pemerintah cenderung menargetkan pada sumber daya buatan tanpa meningkatkan keuangan dan sumber daya manusia terlebih dahulu. Penelitian ini menghasilkan empat jalan keluar dari kemiskinan yang dihadapi nelayan. In this paper a new methodology of quantifying the Sustainable Livelihoods Approach (SLA) is presented and applied to two fishing communities, Sungai Pinang and Ampang Pulai, in West Sumatra. Interviews with 52 households from the bagan sector, including crew members, captains and owners, are analysed using a multi dimensional scaling approach according to six asset categories. The analysis demonstrated that owners possess higher physical, financial and human capital than crew members but that there was no difference in the natural, social and institutional fields. Institutional support across all sectors scored poorly. Government programs tend to emphasise bridging the gap between crew members and owners by providing physical capital without necessarily addressing the underlying financial and human capital limitations that crew members face. The paper concludes with an explanation of the main routes out of poverty for a crew member.
STATUS PEMANFAATAN DAN PENGELOLAAN SUMBERDAYA IKAN TUNA NERITIK DI SAMUDERA HINDIA WPP 572 DAN 573
Authors: Widodo Agustinus Anung , Satria Fayakun , Sadiyah Lilis
Published: October 2016

Dalam rangka mendeskripsikan status pemanfaatan dan pengelolaan sumberdaya tuna neritik di perairan Samudera Hindia (WPP 572 dan 573) telah dilakukan analisis terhadap informasi tentang jenis dan produksi tuna neritik yang disajikan dalam Statistik Perikanan Tangkap di Laut Menurut WPP tahun 2005-2012 (DJPT, 2013) serta data hasil penelitian berbasis di PPS Cilacap dan PPN Sibolga tahun 2011. Rekomendasi ‘working party’ tentang tuna neritik dari IOTC dikaji sebagai langkah pengelolaan perikanan tuna neritik di Indonesia. Hasil analisis dan kajian menunjukkan bahwa sumberdaya ikan tuna neritik yang tertangkap nelayan Indonesia di perairan WPP 572 dan 573 meliputi tongkol lisong (Auxis rochei), tongkol krai (Auxis thazard), tongkol komo atau kawakawa (Euthynnus affinis) dan tongkol abu-abu (Thunnus tonggol). Tuna neritik tertangkap sebagai by-product dari pukat cincin, jaring insang hanyut, pancing tonda, pancing ulur dan bagan. Tahun 2011 produksi neritik tuna di Samudera Hindia khususnya WPP 572 dan 573 mencapai 121.818 ton atau 29,4% dari total produksi tuna neritik nasional. Tuna neritik jenis tongkol lisong dan krai yang tertangkap jaring insang hanyut yang berbasis di Cilacap > 70% merupakan ikan yang telah dewasa. Adapun tongkol komo yang tertangkap pukat cincin yang berbasis di Sibolga sekitar 55,5% merupakan ikan dewasa. Belum ada langkah-langkah pengelolaan secara spesifik terhadap sumberdaya tuna neritik di Indonesia. Merujuk hasil Working Party on Neritic Tuna pertama dan kedua tahun 2011 dan 2012, Indian Ocean Tuna Commission (IOTC) merekomendasikan adanya kerjasama antar negara anggota IOTC yang saling berdekatan didalam melakukan pengelolaan sumberdaya neritik tuna. Langkah pertama adalah dilakukan perelitian mengenai populasi melalui studi mtDNA untuk memastikan status stok dan populasinya. The species of neritic tuna caught by fishers in the Indian Ocean particularly FMAs 572 and 573 consisted of frigate tuna (Auxis thazard), bullet tuna (Auxis rochei), longtail tuna (Thunnus tonggol) and kawa-kawa/eastern little tuna (Euthynnus affinis). These species are by-product of purse seine, drifting gillnet, trolling lines, and lift net. In 2011, production of the neritic tuna from FMAs 572 and 573 reached 121,818 mt or about 29.4% of the national production. More than 70% of catch of neritic tuna especially frigate and bullet tuna caught by drifting gillnet based at Cilacap were matured fish, and kawa-kawa caught by purse seine based at Sibolga about 55.5% of total catch was mature. There are no specific management measures for neritic tuna resources in Indonesia. First and Second IOTC Working Parties on Neritic Tuna in 2011 and 2012 recommended among IOTC’s member countries that are geographically close to each other to conduct a management collaboration of neritic tuna which begins with identifying the status of stock and population through a study mtDNA or other proper methodology.
PEMBELAJARAN DARI PENGELOLAAN DAN KONSERVASI SUMBER DAYA IKAN ARWANA MERAH (Scleropages formosus, Muller and Schlegel, 1844) BERBASIS MASYARAKAT DI DANAU EMPANGAU, KALIMANTAN BARAT
Authors: Kartamihardja Endi Setiadi , Umar Chairulwan , Aisyah Aisyah
Published: October 2016

Permasalahan utama yang teridentifikasi terhadap penurunan populasi sumber daya ikan arwana adalah eksploitasi berlebih, alih fungsi lahan dan degradasi habitat akibat penggundulan hutan. Upaya yang dapat dilakukan untuk mengatasi penurunan populasi ikan arwana adalah konservasi eksitu melalui penangkaran dan konservasi insitu. Konservasi insitu ikan arwana merah (Sclerofages formosus) di habitatnya telah dilakukan oleh penduduk lokal di sekitar Danau Empangau sejak tahun 1980. Hasil pengamatan di lapangan dan kajian pustaka diperoleh keragaan pengelolaan arwana merah baik di tingkat lokal maupun nasional. Pembelajaran yang dapat dipetik dari pengelolaan dan konservasi sumber daya ikan arwana merah berbasis masyarakat ini adalah salah satu pilihan terbaik dalam rangka optimasi pemanfaatan dan konservasi di habitat aslinya. The main problems identified in decreasing of arowana population are over-exploited, habitat fragmentation and habitat degradation due to deforestation. Breeding operations as an exitu conservation and an insitu conservation could be conducted to solve those problems. The insitu conservation of red arowana (Scleropages formosus) has been done by local community around Empangau Lake, one of the natural habitats since 1980. Management of the red arowana in local and national level was reviewed based on the results of field survey and desk study. Lesson learned of community based management of red arowana is the best options for the optimal utilization and conservation of the species at their natural habitat.
ZONASI EKOSISTEM PERAIRAN DANAU TOBA UNTUK PEMANFAATAN PERIKANAN BERKELANJUTAN
Authors: Kartamihardja Endi Setiadi , Fahmi Zulkarnaen , Umar Chairulwan
Published: October 2016

Danau Toba merupakan danau terluas (112.400 ha) dan termasuk salah satu danau kritis da15 danau di Indonesia serta merupakan danau warisan dunia yang perlu dilestarikan. Perairadanau ini dimanfaatkan oleh berbagai sektor pemanfaat yaitu sumber bahan baku air minumpariwisata, Pembangkit Listrik Tenaga Air (PLTA), perikanan, dan transportasi (perhubungan). Dsektor perikanan, Danau Toba dimanfaatkan untuk kegiatan perikanan tangkap dan perikanabudidaya. Kegiatan perikanan tangkap yang berkembang adalah perikanan bilih (Mystacoleucupadangensis) dan kegiatan perikanan budidaya dalam keramba jaring apung ikan nila merah danila hitam (Oreochromis niloticus) serta ikan mas (Cyprinus carpio) berkembang sejak tahu1988. Pengembangan perikanan berkelanjutan di suatu badan air adalah salah satu tujuan utamyang harus di l akukan dan merupakan bagian yang ti dak terpisahkan dari pembangunaberkelanjutan di antara sektor pemanfaat lainnya. Untuk keperluan tersebut, zonasi perairan danaadalah prasyarat mutlak yang harus dilakukan untuk menjamin keberlanjutan pemanfaataekosistem perairan Danau Toba. Zonasi Danau Toba untuk pengembangan perikanan yang dibahadalam makalah ini merupakan salah satu rancangan zonasi yang tidak dapat dipisahkan dari tatruang ekosistem danau untuk pengembangan berkelanjutan bagi seluruh sektor pemanfaat.

 
Lake Toba, a largest lake with a total surface waters area of 112,400 ha was classified as one of critical lakes among 15 lakes in Indonesia and also as one of the heritage lakes in the world which should be sustained. The lake ecosystem was utilized by multi sectors i.e., source of drinking waters, tourism, electric power generation, transportation, and fisheries. In fisheries sector, the lake was utilized for capture fisheries and floating cage fish culture development. Capture fisheries of the small fish (bilih), Mystacoleucus padangensis was being developed since 2005 and floating net cage culture of red tilapia and Nile tilapia (Oreochromis niloticus) and common carp (Cyprinus carpio) was implemented since 1998 as the main activities developed in the lake. Sustainable development of fisheries is a main objective while a sustainable integrated development among others sector is a whole lake ecosystem objective. Therefore, zoning of the Toba Lake ecosystem for fisheries development which was presented and discussed in this paper was an integral part of whole zoning of the lake ecosystem.
DAMPAK INVASIF IKAN RED DEVIL (Amphilophus citrinellus) TERHADAP KEANEKARAGAMAN IKAN DI PERAIRAN UMUM DARATAN DI INDONESIA
Authors: Umar Chairulwan , Kartamihardja Endi Setiadi , Aisyah Aisyah
Published: October 2016

Keanekaragaman ikan air tawar di Indonesia sekarang menghadapi ancaman dari berbagai aktivitas manusia yang bisa menyebabkan punahnya ikan-ikan endemik, dan diperkirakan sekitar 87 jenis ikan Indonesia terancam punah. Beberapa faktor yang menjadi ancaman terhadap keanekaragaman ikan dan menimbulkan kepunahan diantaranya introduksi spesies. Perkembangan beberapa spesies ikan menjadi tak terkendali sehingga menjadi hama dan merugikan manusia. Salah satu di antaranya adalah masuknya ikan ‘Red Devil’ ke beberapa perairan umum daratan di Indonesia. Beberapa perairan yang terdapat ikan red devil, mengalami penurunan sumber daya ikan baik jenis maupun jumlah, bahkan beberapa jenis ikan asli banyak yang hilang. Makalah ini bertujuan untuk mengkaji dampak keberadaan ikan ini terhadap keanekaragaman sumberdaya ikan di perairan. Kajian ini bersifat desk study dan pengamatan langsung di lapangan. Verifikasi lapang dilakukan pada tahun 2011 dan 2012. Hasil tangkapan ikan red devil di beberapa perairan waduk dan danau di Indonesia sangat dominan bisa mencapai 40 – 60 %. Dampak dari invasi ikan ini antara lain adalah terjadinya perubahan ekosistem, yaitu penurunan keanekaragaman hayati, dan dampak terhadap kerugian ekonomi seperti biaya untuk mengendalikan jenis ikan asing dan penurunan produksi ikan ekonomis.

 

Freshwater fish diversity in Indonesia is now facing threats from human activities that could lead to the extinction of endemic fish, and an estimated 87 Indonesian fish species threatened with extinction. Some factors that caused a threat to the diversity and extinction of fish is the introduction of new species. The development of some species of fish become uncontrollable and those being predators and caused a damage for humans life. One of them is the inclusion of Red devil fish to some inland waters in Indonesia. Some inland water that contains of red devil fish caused declining of fish resources in type or amount and extinction of original fish spesies many are missing. The aim of this paper is to examine the impact of these fish presence to the diversity of fish resources in waters. This study was using desk study and direct observation method. Field verification conducted in 2011 and 2012. Catch fish red devil in some lakes and reservoirs in Indonesia are very dominant and could reach 40-60 %. The impact of these fish are changes in ecosystemthat caused decreasing of biodiversity and the other consequences make some economic losses such as increasing the cost to control alien fish and decreasing in production of economical fish.
GENETIKA POPULASI Rastrelliger kanagurta DI PERAIRAN BARAT SUMATERA, SELAT MALAKA DAN LAUT CINA SELATAN
Authors: Zamroni Achmad , Suwarso Suwarso
Published: October 2016

Eksploitasi yang intensif terhadap ikan Banyar (Rastrelliger kanagurta) di perairan Selat Malaka dan Laut Cina Selatan dapat mengakibatkan penurunan kualitas dan kuantitas dari stok ikan. Untuk itu perlu dilakukan pengkajian struktur populasi yang berbasis pada keragaman genetika. Penelitian ini bertujuan untuk mengkaji struktur genetika populasi ikan Banyar di perairan Selat Malaka dan Laut Cina Selatan. Sampel jaringan ikan Banyar dikumpulkan dari 5 lokasi pendaratan yaitu Sibolga, Aceh, Tanjung Balai Asahan, Tanjung Pinang dan Pemangkat. Hasil penelitian menunjukkan bahwa keragaman genetika di masing-masing perairan adalah Sibolga = 0,4423, Aceh = 0,4231, Tanjung Balai = 0,4269, Tanjung Pinang = 0,4 dan Pemangkat = 0,409. Terdapat dua kelompok utama pada struktur genetika populasi ikan Banyar, kelompok pertama berasal dari populasi Sibolga (perairan Samudera Hindia barat Sumatera), dan yang kedua berasal dari populasi Selat Malaka (Aceh dan Tanjung Balai Asahan) dan Laut Cina Selatan (Tanjung Pinang dan Pemangkat).
PERUNTUKAN KAWASAN PESISIR KABUPATEN MAROS, SULAWESI SELATAN SEBAGAI LOKASI PENGEMBANGAN BUDIDAYA TAMBAK RAMAH LINGKUNGAN
Authors: Utojo Utojo , Mustafa Akhmad , Hasnawi Hasnawi
Published: October 2016

Penelitian ini bertujuan untuk mendapatkan potensi kawasan pesisir di Kabupaten Maros, Sulawesi Selatan yang layak sebagai lokasi pengembangan budidaya tambak ramah lingkungan dengan menggunakan teknologi Sistem Informasi Geografi (SIG). Data sekunder yang didapatkan berupa data iklim, data pasang surut, peta Rupabumi Indonesia kawasan Maros skala 1:50.000, citra digital landsat ALOS AVNIR-2 akuisisi 21 Juni 2008 dan peta bathimetri skala 1:200.000. Data primer didapatkan di lokasi penelitian dengan metode survai berupa kualitas air dan tanah tambak. Sebaran stasiun pengamatan dilakukan secara acak dan sistematik, di mana setiap lokasi pengambilan contoh ditentukan posisi koordinatnya dengan alat Global Positioning System (GPS). Data primer dan sekunder serta data citra satelit digital tersebut dikumpulkan dan dianalisis secara spasial menggunakan SIG. Berdasarkan hasil survai dan evaluasi kelayakan lahan budidaya tambak ramah lingkungan di wilayah pesisir Maros seluas 10.249,1 ha. Yang berkelayakan sedang (3.111,4 ha) dan rendah (7.137,7 ha), tersebar di Kecamatan Bontoa, Lau, Marusu, dan Maros Baru, masing-masing dituangkan dalam peta prospektif skala 1:50.000.
ANALISIS SPASIAL KELAYAKAN LAHAN BUDIDAYA KERANG HIJAU ( Perna viridis ) BERDASARKAN KONDISI LINGKUNGAN DI KABUPATEN CIREBON, JAWA BARAT
Authors: Radiarta I Nyoman , Saputra Adang , Ardi Idil
Published: October 2016

Penelitian ini dilakukan untuk menganalisis kelayakan lahan budidaya kerang hijau menggunakan metode tancap di Kabupaten Cirebon, Jawa Barat. Pengumpulan data lingkungan perairan telah dilakukan pada bulan Juli 2010. Data lapangan dan data sekunder lainnya (peta dan data penginderaan jauh) kemudian dianalisis secara spasial dengan sistem informasi geografis (SIG). Lima parameter penting kelayakan lahan dibagi menjadi dua kelompok yaitu faktor lingkungan dan pembatas. Penelitian ini menggunakan sistem skor 1-4, 4 adalah sangat layak dan 1 adalah tidak layak untuk pengembangan budidaya kerang hijau. Hasil analisis SIG menunjukkan bahwa sekitar 46% (23 km2) dari total lokasi potensial (50 km2) tergolong sangat layak. Lokasi ini menyebar sejajar dengan garis pantai dari Kecamatan Kapetakan sampai Kecamatan Suranenggala. Tidak ditemukan lokasi dengan kategori tidak layak. Hasil analisis ini menunjukkan bahwa lokasi penelitian di Kabupaten Cirebon sangat mendukung untuk pengembangan budidaya kerang hijau.
PEMELIHARAAN BENIH IKAN BALASHARK ( Balantiocheilus melanopterus ) DENGAN PENINGKATAN KESUBURAN KOLAM
Authors: Insan Irsyaphiani
Published: October 2016

Domestikasi ikan balashark telah berhasil dilakukan tapi masih ada permasalahan pada stadia awal benih yaitu tingkat kematian yang masih tinggi. Tujuan dari penelitian ini adalah untuk mengetahui  penampilan  benih ikan balashark yang dipelihara di kolam melalui peningkatan kesuburan dengan cara pemupukan. Benih balashark yang digunakan ukuran 120 mg (usia 24 hari) dipelihara dalam hapa ukuran 2 m x 2 m x 1 m yang diletakkan di kolam tanah ukuran 50 m dengan padat tebar 225 ekor/hapa. Perlakuan berupa penyuburan kolam dengan pemupukan yang berbeda yaitu tanpa pemupukan, pemupukan dengan kotoran ayam 800 g/m2, pupuk organik cair 2 mL/m2 dan pupuk komersial 1 g/m2 serta setiap perlakuan diulang tiga kali. Parameter yang diamati meliputi kelimpahan plankton dan plankton di dalam usus ikan dilakukan setiap dua hari sekali. Sedangkan pertumbuhan dan sintasan dilakukan setiap 10 hari sekali. Rancangan penelitian menggunakan Rancangan Acak Lengkap. Penelitian dilaksanakan selama 40 hari. Hasil penelitian menunjukkan kelimpahan plankton tertinggi dijumpai pada perlakuan pemupukan kotoran ayam yaitu 88 spesies fitoplankton dan 26 spesies zooplankton. Sedangkan plankton yang paling banyak ditemukan dalam usus ikan adalah dari kelas Chlorophyceae dan Crustacea. Pertumbuhan (panjang dan bobot mutlak) pada perlakuan pemupukan kotoran ayam menunjukkan hasil yang nyata lebih tinggi (P<0,05), sedangkan sintasan pada semua perlakuan tidak menunjukkan hasil yang berbeda (P>0,05).
EFISIENSI PRODUKSI PAKAN ALAMI SECARA INTENSIF
Authors: Sumiarsa Gede S. , Astuti Rina
Published: October 2016

Rotifer Brachionus rotundiformis merupakan pakan alami utama yang dipergunakan dalam perbenihan ikan-ikan laut. Produksi rotifer pada percobaan ini dilakukan dalam wadah kecil (0,5 m3) dengan padat penebaran awal 100-150 ekor/mL, diberikan fitoplankton Nannochloropsis oculata kepadatan tinggi (1,0-2,0x108 sel/mL) didalam dan di luar ruangan.  Oksigen murni dialirkan ke dalam bak-bak budidaya rotifer dengan laju 0,05-0,1 L/menit sedangkan penghitungan kepadatan fitoplankton, rotifer, dan pemeriksaan kualitas air dilakukan setiap hari. Rata-rata kepadatan akhir rotifer budidaya didalam ruangan pada hari hari ke 7-9 adalah 525±6,1 ekor/mL sedangkan budidaya rotifer di luar ruangan hanya mampu berlangsung selama 2-4 hari dengan kepadatan yang terus menurun setelah penebaran awal. Kandungan lemak rotifer adalah 14,0%, dengan kandungan asam lemak DHA: 1,4 mg/g DW, EPA 57,2 mg/g DW, dan HUFA: 61,5 mg/g DW dengan rasio DHA/EPA 0,02. Suhu air, pH, dan total amonium berturut-turut berkisar pada nilai 26,1oC-34,1oC, 8,3-8,8 dan 0,48-2,20 mg/L.
POLA EKSPRESI GEN ENHANCED GREEN FLUORESCENT PROTEIN PADA EMBRIO DAN LARVA IKAN PATIN SIAM (Pangasianodon hypophthalmus)
Authors: Dewi Raden Roro Sri Pudji Sinarni , Alimuddin Alimuddin , Sudrajat Agus Oman , Sumantadinata Komar , Hayuningtyas Erma Primanita
Published: October 2016

Penelitian ekspresi sementara (transient expression) dari transgen secara in vivo
menggunakan gen reporter berguna untuk mendesain konstruksi gen yang akan digunakan pada penelitian transgenesis. Gen reporter yang umum digunakan dalam penelitian ekspresi sementara transgen adalah gen GFP (green fluorescent protein). Pengamatan gen EGFP (enhanced green fluorescent protein) pada embrio dan larva ikan patin siam (Pangasianodon hypophthalmus) ditujukan untuk mendapatkan informasi mengenai kemampuan promoter -aktin ikan mas dalam mengendalikan ekspresi gen EGFP. Gen EGFP diintroduksikan ke dalam sperma ikan patin siam menggunakan metode elektroporasi. Sperma yang telah dielektroporasi digunakan untuk membuahi sel telur ikan patin siam. Pengamatan ekspresi gen EGFP dilakukan setiap enam jam dimulai dari embrio fase 2 sel sampai larva. Berdasarkan hasil penelitian, gen EGFP terekspresi pada fase embrio dan larva ikan patin siam. Puncak ekspresi gen EGFP terjadi pada fase neurula dan menurun pada fase larva. Berdasarkan penelitian ini maka ikan patin siam transgenik telah berhasil dibentuk dan promoter -aktin ikan mas terbukti aktif dalam mengarahkan ekspresi gen asing (GFP) di dalam tubuh ikan patin siam.
PERTUMBUHAN DAN SINTASAN BENIH UDANG GALAH (Macrobrachium rosenbergii de Man) PADA PENDEDERAN BERBASIS SISTEM HETEROTROF DENGAN PADAT TEBAR BERBEDA
Authors: Khasani Ikhsan , Sopian Asep
Published: October 2016

Strategi untuk meningkatkan produksi udang galah dapat ditempuh melalui penyediaan benih unggul dalam jumlah memadai dan berkelanjutan. Penelitian ini bertujuan untuk mendapatkan komponen teknologi pendederan udang galah yang lebih produktif. Teknologi bioflok pada sistem pendederan udang galah, dengan titik berat pada optimasi peran bakteri heterotrof untuk pengendalian senyawa toksik limbah budidaya diharapkan dapat meningkatkan produktivitas melalui peningkatan padat tebar dan sintasan benih. Penelitian menggunakan rancangan acak lengkap dengan tiga tingkat kepadatan benih dan satu kontrol, yang terdiri dari: A) kepadatan 1 ekor/L, tanpa sistem heterotrof (TSH); B) kepadatan 1 ekor/L dengan sistem heterotrof (SH); C) 2 ekor/L dengan SH; D) 3 ekor/L dengan SH, masing-masing perlakuan diulang tiga kali. Sistem heterotrof dijalankan dengan menambahkan molase sebagai sumber karbon dan bakteri Bacillus sp. Hasil yang diperoleh menunjukkan bahwa perlakuan padat tebar dan sistem pengelolaan air memberikan pengaruh nyata (P<0,05) baik terhadap sintasan maupun pertumbuhan benih. Nilai sintasan akhir benih yang diperoleh yaitu 63,3±13,6%; 78,0±22,0%; 88,7±8,1%; dan 89,6±3,7%, berturut-turut untuk perlakuan A, B, C, dan D. Hasil yang diperoleh menunjukkan bahwa melalui penerapan teknologi bioflok pendederan udang galah dapat dilakukan tanpa pergantian air dengan kepadatan hingga 3 ekor/L.
APLIKASI BAKTERIN PADA BUDIDAYA UDANG WINDU DI TAMBAK DENGAN POLA TRADISIONAL PLUS
Authors: Tompo Arifuddin , Susianingsih Endang , Kurniawan Koko
Published: October 2016

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan bakterin pada budidaya udang windu di tambak sistem tradisional plus di Instalasi Tambak percobaan Marana, Maros menggunakan 10 petak tambak berukuran 250 m2 dengan dua perlakuan dan lima ulangan. Kepadatan udang yang digunakan 10 ekor/m2 ukuran PL-15 yang sebelum ditebar direndam dengan bakterin pada dosis 0,2 mL/L selama 45 menit. Perlakuan yang dicobakan adalah: (A) pemeliharaan udang windu dengan penambahan bakterin, vitamin C, dan binder progold pada pakan sebelum peleting dan (B) pemeliharaan udang windu dengan pemberian pakan biasa tanpa penambahan bakterin sebagai kontrol. Pemberian pakan dengan penambahan bakterin dilakukan 2 kali setiap bulan yaitu pada hari ke-13, 14, dan 15 pemeliharaan setiap bulan selama 90 hari pemeliharaan. Peubah yang diamati meliputi populasi bakteri dan parameter kualitas air setiap dua minggu sekali serta sintasan dan produksi. Rata-rata sintasan pada perlakuan A sebesar 71,48% dengan tingkat produksi 391 kg/ha sedangkan perlakuan B (kontrol) diperoleh sintasan 62,4% dengan produksi sebesar 367 kg/ha. Analisa populasi bakteri baik pada tanah maupun pada air masih berada pada kisaran yang aman untuk budidaya udang windu begitu pula parameter kualitas air masih berada pada batas yang aman untuk budidaya.
PENGEMBANGAN BUDIDAYA RUMPUT LAUT: IMPLIKASI PENERAPAN BLUE ECONOMY DI TELUK SEREWEH, NUSA TENGGARA BARAT
Authors: Erlania Erlania , Radiarta I Nyoman
Published: October 2016

Rumput laut merupakan komoditas budidaya yang juga berperan dalam perbaikan kualitas lingkungan perairan, sehingga dijadikan sebagai salah satu komponen pengembangan budidaya laut dengan konsep ekonomi biru (blue economy). Penelitian ini bertujuan untuk menganalisis kondisi perairan bagi pengembangan budidaya rumput laut sebagai implikasi penerapan blue economy di Teluk Sereweh, Nusa Tenggara Barat. Pengumpulan data lapangan meliputi beberapa paremeter kualitas perairan pada 32 titik pengamatan in situ dan 16 titik pengamatan ek situ yang disebar pada seluruh kawasan penelitian, serta kondisi existing budidaya rumput laut melalui wawancara langsung dengan masyarakat pembudidaya. Data yang terkumpul digunakan untuk mengestimasi daya dukung lingkungan perairan untuk budidaya rumput laut dan dianalisis menggunakan statistik deskriptif yang ditampilkan dalam bentuk tabel dan gambar. Hasil penelitian memperlihatkan bahwa kondisi perairan Teluk Sereweh sangat baik untuk pengembangan budidaya rumput laut dengan daya dukung mencapai 93,3 ha untuk sistem long line dan 142,2 ha untuk sistem rakit apung. Namun pemanfaatan kawasan perairan untuk budidaya rumput laut perlu diatur berdasarkan daya dukung perairan tersebut, sehingga dapat menghasilkan produksi yang optimum, dan rumput laut sebagai komponen budidaya berbasis blue economy dapat memperlihatkan peranannya untuk mendukung keberlanjutan usaha budidaya rumput lautoleh masyarakat pesisir.