This research aims are to determine the potential fishing grounds of yellowfin tuna based on the approach of sea surface temperature, chlorophyll-a and catches in the Ceram Sea. Overall catches of 407 Individuals. In January the total catches were 66 individuals (14.44%), in February 67 individuals (14.66%), in March 84 individuals (18.38%), in April 116 individuals (25.38%) and in May 124 individuals (27.13%). The distribution of sea surface temperature and chlorophyll-a in the Ceram Sea in January-May 2019 looks varied. In January the average sea surface temperature was 29.13 oC, in February sea surface temperature was 29.54 oC, in March sea surface temperature was 30.12 oC, in April sea surface temperature was 30.12 oC, in May sea surface temperature was 29.77 oC. Chlorophyll-a concentration in January and February was 0.21 mg/m3, March was 0.20 mg/m3, April was 0.16 mg/m3, and May was 0.25 mg/m3. The results of the t-test analysis showed the P-value of sea surface temperature was 0.009<0.05, chlorophyll-a P-value 0.00048<0.05. Determination of potential fishing areas based on sea surface temperature, chlorophyll-a, and CPUE indicators shows that potential fishing areas are found in January, February, March, and May, while in April are in the medium potential category. Penelitian ini dilaksanakan dengan tujuan menentukan daerah penangkapan potensial Tuna madidihang berdasarkan pendekatan suhu permukaan laut, klorofil-a dan hasil tangkapan di Laut Seram.  Secara keseluruhan hasil tangkapan ikan tuna madidihang sebanyak 407 Individu. Bulan Januari total hasil tangkapan sebanyak 66 individu (14.44%), bulan Februari 67 individu (14.66%), bulan Maret 84 individu (18.38%), bulan April 116 individu (25.38%) dan bulan Mei 124 individu (27.13%). Sebaran suhu permukaan laut dan klorofil-a di Laut Seram pada bulan Januari-Mei 2019 terlihat bervariasi. Bulan Januari rata-rata suhu permukaan laut sebesar 29.13 oC, bulan Februari suhu permukaan laut 29.54 o, bulan Maret suhu permukaan laut 30.12 oC, bulan April suhu permukaan laut 30.12 oC, bulan Mei suhu permukaan laut 29.77 oC. Konsentrasi klorofil-a pada bulan Januari dan Februari sebesar 0.21 mg/m3, bulan Maret sebesar 0.20 mg/m3, bulan April sebesar 0.16 mg/m3, dan bulan Mei sebesar 0.25 mg/m3.  Hasil analisis uji t menunjukan nilai P-value suhu permukaan laut sebesar 0,009<0,05, klorofil-a P-value 0,00048<0,05. Penentuan daerah penangkapan ikan potensial berdasarkan indikator suhu permukaan laut, klorofil-a dan CPUE menunjukkan daerah penangkapan ikan potensial terdapat pada bulan Januari, Februari, Maret, dan Mei, sedangkan pada bulan April berada dalam kategori potensial sedang.

<p>ABSTRACT<br />Optimum allocation of catching fleet must be determined optimally so that the level of utilization of fish resources is not excessive and prevent horizontal conflicts among fishermen in getting the same fishing area in the future. This study aims to determine the optimum allocation of catching yellowfin small-scale units in the district of West Seram. Research using the linear goal programming (LGP). To optimize the number of fishing unit, this study suggested that increasing number of the 40 HP fishing boat size from 25 to 38 units, while for the boat of 18 and 15 HP sizes should be maintained on the actual number of 55 and 45 units, respectively. The allocation does not reduce unit allocation of certain existing arrest, thus avoiding conflict and socially friendly.</p><p>Keywords: allocation, optimum, fishing fleet, small-scale</p><p>-------</p><p><br />ABSTRAK</p><p>Alokasi optimum armada penangkapan harus ditentukan secara optimal agar tingkat pemanfaatan potensi sumber daya ikan tidak berlebihan dan mencegah timbulnya konflik horizontal antar nelayan dalam memperebutkan daerah penangkapan yang sama di kemudian hari. Penelitian ini bertujuan menentukan alokasi optimum unit penangkapan madidihang skala kecil di Kabupaten Seram Bagian Barat. Penelitian menggunakan metode Linier Goal Programming (LGP). Optimasi unit penangkapan madidihang, menunjukkan terjadi peningkatan pada alokasi unit penangkapan armada 40 PK dari 25 unit menjadi 38 unit, sedangkan armada 18 PK dan armada 15 PK dipertahankan sesuai kondisi aktualnya masing-masing 55 unit dan 45 unit. Pengaturan alokasi ini tidak mengurangi alokasi unit penangkapan tertentu yang sudah ada, sehingga menghindari konflik dan ramah secara sosial.</p><p><br />Kata kunci: alokasi, optimum, armada penangkapan, skala kecil</p>

Increasing of global awareness related to environmental management, ecosystems, and fisheries resources is a trigger in the reactualization of community traditions and institutions. People of Tidore Islands City, known as indigenous people with their coastal and marine institutional traditions in North Maluku Province, have a local order handed down in the utilization of the coastal and marine resources. This study aimed to analyze the existence of traditions and institutions and their effects on managing coastal and marine resources in the City of Tidore Islands. The research was conducted on June-August 2019 in the city of Tidore Islands. This research encompass 4 Subdistrict and 2 villages namely, Tomalou, Mareku, Soasio and Dowora Subdistrict as well as Mare Gam and Maitara village,. The research applied a qualitative method, which involves in-depth interview techniques, observation, and documentation. Data were analysed using a qualitative descriptive analysis. The results of the study showed that there are five local wisdoms that are maintained by the people of Tidore Islands City nowadays. These local wisdom is a legacy from the ancestors in the management of coastal and marine resources, namely Karo Kahiya (Calling the Dolphins), Fola Sow (Lit. House of Medicine), Jere (Sacred), Cofa (Fish breeding) and Saihu (Leader/Fishing Master). The approach to management of coastal and marine resources with procedures or traditions and institutions contributed a significant impact (very effective) on local communities in relation to the sustainable use of coastal and marine resources. as well as the preservation of local traditions and customary institutions. ABSTRAK Meningkatnya kesadaran global terkait pengelolaan lingkungan, ekosistem dan pemanfaatan sumberdaya perikanan menjadi pemicu dalam reaktualisasi tradisi dan kelembagaan masyarakat. Masyarakat Kota Tidore Kepulauan yang dikenal sebagai masyarakat adat dengan tradisi kelembagaan pesisir dan lautnya di Provinsi Maluku Utara, merupakan masyarakat yang memiliki tatanan lokal yang turun temurun dalam pemanfaatan sumberdaya pesisir dan laut dimaksud. Penelitian ini bertujuan untuk menganlisis eksistensi tradisi dan kelembagaan serta pengaruhnya terhadap pengelolaan sumberdaya pesisir dan laut di Kota Tidore Kepulauan. Penelitian ini dilaksanakan pada Juni- Agustus 2019, di Kota Tidore Kepulauan meliputi 2 desa dan 4 kelurahan yakni, Desa Mare Gam, Desa Maitara, Kelurahan Tomalou dan Kelurahan Mareku, Kelurahan Soasio dan kelurahan Dowora. Penelitian ini merupakan penelitian kualitatif, yang melibatkan teknik-teknik wawancara mendalam, observasi, dan dokumentasi. Analisis data dilakukan secara deskriptif kualitatif. Hasil Penelitian menunjukkan sampai saat ini masih terdapat lima kearifan lokal yang tetap terjaga oleh masyarakat Kota Tidore Kepulauan yang merupakan warisan dari para leluhur dalam pengelolaan sumbedaya pesisir dan laut, yakni Karo Kahiya (Memanggil Lumba Lumba), Fola Sow (Rumah Obat), Jere (Keramat), Cofa (Penangkaran Ikan) dan Saihu (Pemimpin/Nakoda dalam Operasi Penangkapan Ikan). Pendekatan pengelolaan sumberdaya pesisir dan lautan dengan tradisi dan kelembagaan telah memberikan dampak yang sangat signifikan (sangat efektif) bagi masyarakat setempat dalam pemanfaatan sumberdaya pesisir dan lautan yang berkelanjutan maupun pelestarian tradisi dan kelembagaan adat istiadat setempat. Kata Kunci: Tradisi, kelembagaan, pengelolaan, sumberdaya, Tidore

─Analysis on factors which influence productivity of fishing businessis an essential matter to increase fisherman income. This research aims to: 1) Analyze factors which influence productivity of small-scale yellowfin tuna fishing business, 2) Establish structure model of small-scale Yellowfin tuna fishingbusiness productivity. The analysis on factors which influence development of yellowfin tuna fishing in West Region of Seram District uses Structural Equation Model (SEM). The result of the analysis shows that Fishing Operations Material (BOP) is the primary factor which contributes 88% influence. Furthermore, Fishing Operations Unit (UOP) factor has 26% influences. Yet, Fishermen Resources (SDN) does not have any influences on small-scale yellowfin tuna fishing business. Parameter of FishingGround (DRP) has 91% influences and Fishing Season (MSP) has 79% influences on yellowfin tuna fishing business productivity. Productivity structure of small-scale yellowfin tuna fishing has trust level of 99%. Hence, this model of small-scale yellowfin tuna fishing productivity has well accuracy and may become reference model for tuna fisheries management especially sustainable smallscale yellowfin tuna.

Nelayan mengetahui sumberdaya laut secara rinci, juga lingkungan mereka dan aktifitas penangkapan yang mereka lalukan, dan pengetahuan ini jarang dikoleksi secara sistimatik. Penelitian ini dilakukan untuk menguji persepsi nelayan terhadap perubahan hasil tangkapan dan penyebabnya. Kami mewawancarai nelayan pantai Haive Besar dengan menggunakan kuisioner yang sifatnya semi terstruktur. Informasi pribadi nelayan seperti umur dan pengalaman menangkap ikan, aktifitas penangkapan seperti alat yang digunakan dan daerah penangkapan, serta pengetahuan mereka tentang perubahan ekosistem menjadi topik pertanyaan di dalam kuisioner. Nelayan dengan usia karir menengah (21-35 tahun) lebih banyak dibandingkan nelayan usia karir muda dan karir tua. Nelayan mendeteksi perubahan pada ekosistem daerah penangkapan mereka seperti banyaknya sampah, limbah minyak, rusak dan berkurangnya habitat karang dan lamun serta kekeruhan. Dampak yang nelayan rasakan adalah hasil tangkapan yang semakin berkurang bahkan tidak ada lagi. Persepsi nelayan terhadap perubahan ekosistem dan hasil tangkapan mereka menjadi dasar bagi penelitian selanjutnya seperti fisheries assessment. FISHERS’ PROFILE AND PERCEPTION ON THE SHIFTING OF CATCH ON THE COAST OF AMBON BAY. Fishers have detailed knowledge of their resources, their environment, and their fishing practices that is rarely systematically collected. This study was undertaken to examine perceptions of fishers on the shifting of catch and the occasion of the changing. We conducted an interview with coastal Hative Besar fishers using a semi-structured questioner. Fishers’ profiles such as age and years at fishery, gears and fishing grounds was one part of the questions. Other part was fishers’ ecological knowledge focused on environmental condition and shifting catch. More fishers with middle career (21-35 year in fishery) than young and old careers were interviewed. Environmental changes included waste in the water, oil, corals and seagrasses degradation, and turbidity affected the catch of fishers. Fish became difficult to be found. We learn from this study that fishers’ perception is an important tool for further fisheries assessment study.