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"ABSTRACTIndian Oceaon is influenced by the monsoon cycle. Monsoon cycle that occurs in the Indian Ocean influences the current patterns. Since a very strong westerlies occurs in The Tropical Convergence Zone TCZ at the equator, wyrtji jet is formed in the 40o 80o W lndian Ocean on a transitional season. Its branchs are possibly formed when the western coast of Sumatra which eventually creates South java Current SJC. SJC flows southeastward during December until April and northwestward during June until October, when it is associated with coastal upwelling. SJC develop upwelling on a seasonal basis. "

"ABSTRAKFisheries resources management aimed to improve community welfare especially fishermen and to conserve the fisheries resources and its environment, to keep the capture fisheries business system sustainability efficient and profitable. Beside marketing guarantee, optimalization between fisheries resources stock and fishing effort in each of fishing area. The improvement of capture fisheries must be held based on the existing condition, i.e.: marketing in determining the priority commodity, maximum sustainable yield and fisheries resources utilization level to determine limit of fisheries resources utilization chance, fishing technology and socio-economic condition to identify the fishermen's earns and absorption of labors related to capture fisheries sector. Based on the marketing aspect analysis, it is determined that the kinds of priority commodity in Southern of West Java Province are lobster, shrimp, tuna, skip jack tuna, and layar. Hence, the potency (MSY) and fisheries resources utilization level of the priority commodity still has very large chance to improve, except lobster has large enough chance. Based on the scoring approach, combined from many technical aspects, financial aspects and social aspect and linear goal programming analysis can be concluded that the proper fishing technology in southern waters of West Java Province are: (1) Purse seine 80 unit, (2) Denish same 127 unit, (3) Lines 144 unit, (4) Gillnet 80 unit, (5) Trammel net 376 unit."

"West season represent period of strong blowing wind in southern waters of Malang, East Java Province with maximum speed of wind reaching 31.37 that happened in Februari 2008, while average speed of wind 10.16 knot. During this season wind pattern even also relative more disseminating to all direction compared to other seasons. Westerly wind is dominant at the season. During three next seasons, namely early-year switchover season, east season and year-end switchover season, wind pattern settdly blow from east and south-east directions. Speed of its feeber wind even also than west season, specially at early-year switchover and year-end switchover seasons. East wind is predominating wind puff since April till November with strongest blowing 23.19 knot happened in July and average speed of this wind reach maximum 15.39 knot in August. March become period of calm wind puff with wind blowing disseminating from all direction relatively . Average speed of wind in this month only 5.90 knot and speed of the strongest 12.93 knot only. February - March mark a period of wind gradient strongest and average speeds with maximum and minimum reaching during December 2007 till November 2008."

"Metode mekanisme fokal yaitu suatu metode dalam geologi struktur yang menerangkan sistem stress atau gaya tektonik yang bekerja pada suatu bidang patahan /sesar. Ada beberapa cara untuk menentukan atau mengidentifikasi mekanisme sumber gempa bumi, diantaranya dengan menggunakan data awal arah gelombang P. Dari seismogram dapat diketahui gerakan awal dari gelombang P, keatas atau kebawah. Untuk gerakan keatas dinotasikan dengan c (kompresi), sedangkan gerakan kebawah dinotasikan d (dilatasi). Dengan data gerakan awal dari gelombang P disekitar pusat gempa bumi, maka jenis sesar atau patahan yang terjadi dapat diidentifikasi, apakah sesar naik (thrust fault), sesar turun (normal fault) atau kombinasi dari keduanya dengan menggunakan software Source Mechanism Practice.Untuk gempa bumi Jogja diperoleh parameter bidang sesar sebagai berikut: strike U340T, dip 830 serta slip 40, yang berarti sesar tersebut adalah sesar mendatar sinistral. Hal ini bersesuaian dengan salah satu sesar lokal yang ada di Jogja yaitu sesar Opak yang mengarah timur laut. Untuk gempa bumi Ciamis diperoleh parameter bidang sesar sebagai berikut: strike U1550T, dip 850 serta slip 900, yang berarti sesar tersebut adalah sesar naik (thrust fault). Hal ini diperkuat oleh temuan tim BPPT yang melakukan penelitian kedasar laut, dimana dilokasi ini ditemukan tiga sesar naik yang merupakan lanjutan dari sesar Sumetera yang mengarah ke tenggara dan berujung tepat di selatan Pelabuhan Ratu sebelum memotong palung Sunda. Untuk gempa bumi Banten diperoleh parameter bidang sesar sebagai berikut: strike U1550T, dip 710 serta slip -1800, yang berarti sesar tersebut adalah sesar mendatar dekstral. Sedangkan untuk gempa bumi Banyuwangi diperoleh parameter bidang sesar sebagai berikut: strike U2770T, dip 660 serta slip 1520, yang berarti sesar yang terjadi adalah oblique fault."

"SURVEI KELAUTAN DI PERAIRAN SAMUDERA HINDIA SELATAN JAWA BARAT (PERAIRAN SELAT PANAITAN SELATAN). Telah dilakukan survei kelautan yang berhubungan dengan dispersi radionuklida di perairan laut Samudera Hindia. Penilitian dilakukan dengan cara mengambil sampel air laut untuk mengetahui konsentrasi 137Cs dan melakukan pengukuran CTD. Untuk mengetahui kondisi fisis oseanografi daerah penelitian, maka dilakukan pengambilan data temperatur, salinitas, dan densitas secara vertikal dengan menggunakan CTD di tiga titik pemantauan. Data hasil rekaman CTD dapat digunakan sebagai bahan untuk menganalisis pola arus yang terjadi di lokasi penelitian. Menggunakan software Ocean Data View (ODV), data CTD diolah dan ditampilkan dalam bentuk grafik terhadap kedalaman. Konsentrasi 137Cs di perairan Selat Panaitan – Selatan Garut dengan kisaran 0,14 – 0,30 mBq/L. Konsentrasi tersebut belum mengindikasikan dampak kecelakaan Fukushima walaupun pola arus global mampu mentranspor 137Cs dari sumber (Fukushima) ke perarain Indonesia. Arus yang berada di Samudera Pasifik masuk ke perairan Indonesia melalui sistem ARLINDO. Nilai konsentrasi terendah dan tertinggi terjadi karena perbedaan jarak stasiun penelitian dengan ARLINDO. Kata kunci: survei, samudra hindia, 137Cs ABSTRACT SURVEY OF MARINE IN SOUTH INDIAN OCEAN – EAST JAVA (STRAIT OF SOUTH PANAITAN). Marine surveys have been conducted relating to the dispersion of radionuclides in the marine waters of the Indian Ocean. The studies conducted by taking a sample of sea water to determine the concentration of 137Cs and CTD measurements. To determine the physical oceanographic conditions of the study area, then the data collection of temperature, salinity and density vertically using the CTD in three monitoring points have been performanced. CTD data recording can be used as material for analyzing the flow patterns that occur in the study site . Using the software Ocean Data View ( ODV ), CTD Data processed and displayed in graphical form on the depth . The concentration of 137Cs in Panaitan Strait - South Garut with a range of 0.14 to 0.30 mBq/L. This concentration of 137Cs has not indicated the impact the Fukushima accident although the global flow pattern although capable of transporting 137Cs source (Fukushima ) to Indonesia marine waters. The current of the Pacific Ocean waters can enter Indonesia through Arlindo system. Value of the lowest and highest concentrations occur due to differences in the distance with Arlindo research station . Keywords: Survey, Indian Ocean, 137Cs"