Judul: Studi Usaha Penangkapan Rajungan (Portunnus sp .) di Perairan Cambaya, Kodya Makassar Sulawesi Selatan
Abstrak: Perikanan rajungan di Indonesia belum begitu berkembang walaupun usaha penangkapan sudah cukup lama dilakukan. Hal ini karena usaha perikanan rajungan dilakukan secara tradisional dan pemasarannya masih tergantung pada pengumpul, sehingga harga jualnya menjadi rendah. Padahal sebagai komoditi ekspor, rajungan memiliki prospek yang cerah dan belum dapat dipenuhi oleh negara-negara pemasok rajungan lainnya.
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Judul: Studi Tentang Kegiatan Penangkapan  Udang di PT. Marine Products Indonesia Cabang Kendari, Sulawesi Tenggara
Abstrak: Udang merupakan komoditi perikanan laut yang banyak menghasilkan devisa negara dewasa ini, sehingga banyak pengusaha baik pribumi maupun asing berminat untuk menanamkan modalnya pada usaha penangkapan udang. Usaha penangkapan udang di perairan Arafura dan sekitarnya menggunakan kapal pukat udang dengan alat tangkap tips double rig shrimp trawl. Alat ini merupakan modifikasi dari trawl dan dilengkapi dengan Turtle Excluder Device (TED). TED berfungsi sebagai alat untuk meloloskan penyu dan ikan demersal dari hasil tangkapan. Seiring dengan bertambahnya upaya penangkapan yang dilakukan oleh PT. Maprodin mengakibatkan terjadinya penurunan produksi pada usaha penangkapan udang. Pengetahuan tentang indeks musim penangkapan sangat diperlukan dalam menentukan saat yang tepat untuk melakukan operasi penangkapan udang.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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