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"ABSTRAKLaut Banda merupakan daerah penangkapan ikan tuna madidihang yangsangat intensif dan cenderung membahayakan kelestarian stok. Dalam rangkamenerapkan dasar pengelolaan yang efektif dan efisien, pada tahun 2011-2012telah dilakukan penelitian mengenai sumberdaya ikan tuna madidihang di LautBanda. Tujuan penelitian adalah untuk mengetahui kelimpahan, pertumbuhan,musim pemijahan dan daerah pemijahan. Metode pengumpulan data adalahmelalui observasi enumerasi harian terhadap aktivitas pancing ulur yang berbasisdi Banda Neira, survei eksploratori dan data sekunder dari instansi resmi.Kelimpahan ikan tuna madidihang secara temporal tertinggi terjadi pada MusimPeralihan II dan secara spasial tertinggi terjadi di Area Barat Laut dan AreaTenggara. Rekrutmen ikan tuna madidihang di Laut Banda terjadi bulan Februari.Pertumbuhan ikan tuna madidihang bersifat allometrik positif pada bulan Juni-Oktober dan allometrik negatif pada November-Mei, kegemukan tertinggi padabulan Juni dan terkurus pada bulan Januari, faktor kondisi terbesar terjadi padaMusim Barat dan terkecil pada Musim Peralihan II. Puncak musim pemijahanikan tuna madidihang di Laut Banda berlangsung bulan Oktober sampai denganDesember. Konsentrasi daerah pemijahan ikan tuna madidihang di Area BaratLaut dan Tenggara.

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ABSTRACTBanda Sea is an area of yellowfin tuna fishing ground which is veryintense and likely to endanger the sustainability of the stock. In order toimplement the basic of management which effective and efficient, in 2011-2012have done research on yellowfin tuna resources in the Banda Sea. The purpose ofthe study is to determine the abundance, the growth, the spawning season andspawning ground. The data collection methods is through; observationenumeration stretching daily to fishing activities which based in Banda Neira,exploratory survey and secondary data from official agencies. The highesttemporal abundance of yellowfin tuna occurs in Transitional Seasons II and thehighest spatial occurred in Northwest and Southeast Areas. Recruitment ofyellowfin tuna in the Banda Sea occurred in February. Growth of yellowfin tuna ispositively allometric in June to October and negatively allometric in November toMay, the highest obesity in June and the thinnest in January. the biggest conditonfactor occurs in the Western Season and the smallest in the Transitional SeasonsII. Peak spawning season of yellowfin tuna in the Banda Sea occurs in Octoberthrough December. The concentration of yellowfin tuna spawning ground was inthe Northwest and Southeast Areas."

"ABSTRAKKeberhasilan operasi penangkapan pancing tonda banyak dipengaruhi oleh faktor teknis, dan non teknis. Tujuan penelitian adalah menentukan indeks musim penangkapan, morfometri, umur dan pertumbuhan ikan madidihang, serta pengelolaan pancing tonda di PPN Palabuhanratu berkesinambungan. Metode pengumpulan data primer dengan mengukur parameter kualitas air dan panjang berat ikan madidihang, kemudian wawancara dan pengisian kuesioner. Analisis yang digunakan adalah : (1) analisis rata-rata begerak; (2) regresi linier sederhana; (3) Von Bertallanfy Growth Function; dan (4) regresi berganda. Hasil penelitian menunjukkan bahwa musim penangkapan ikan madidihang di Palabuhanratu terjadi bulan Juni atau musim timur. Potensi lestari ikan madidihang sebesar 1095,54 ton/tahun dan f optimum 615 unit upaya penangkapan standar long line. Hubungan panjang berat ikan madidihang bersifat isometrik. Kemudian pola dan umur pertumbuhan ikan madidihang dinyatakan dengan persamaan von Bertalanffy yaitu : Lt = 166.43{1-e[-0.45(t+1.3843)]}dengan umur rata-rata 2-3 tahun dan sudah pernah memijah. Secara simultan pengaruh kedelapan faktor produksi ini terhadap hasil tangkapan madidihang dengan pancing tonda adalah signifikan dengan selang kepercayaan 95%. Sedangkan secara parsial pengaruhnya yang signifikan hanya oleh 5 faktor produksi saja, yaitu pendidikan dan pengalaman nakhoda, frekuensi setting menggunakan alat bantu "layang-layang", serta lamanya dan frekuensi setting menggunakan alat bantu jerigen per hari.

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Abstract

The success of fishing operation of trolling lines heavily influenced by technical factors, and non-technical. The research objective was to determine the fishing season index, morphometry, age and growth of yellowfin tuna, as well as the management of fishing trolling lines at PPN Palabuhanratu. Primary data collection methods collected from measurement of water quality parameters and the length and weight of yellowfin, then interview and filling questionnaire from filed. The analysis used were: (1) analysis of the average stir, (2) simple linear regression, (3) Von Bertallanfy Growth Function, and (4) multiple regression. The results showed that yellowfin fishing season in Palabuhanratu season in June or east season. The potential sustainable resource of yellowfin tuna is 1095.54 tons/year and 615 units optimum f standard longline fishing effort. Length weight relationship of yellowfin tuna is isometric. The pattern and age of yellowfin tuna growth expressed by von Bertalanffy equation, Lt = 166.43 {1-e [-0.45 (t+1.3843)]} with an average age of 2-3 years and have never spawn. The simultaneous influence of these eight factors of production towards yellowfin catches by fishing with trolling lines is a significant 95% confidence interval. While the partial effects were significant only by the 5 factors of production, namely education and experience of the skipper, the frequency setting using the tools kite "layang-layang", as well as the duration and frequency settings using the tools jerry cans per day."