Judul: Analisis hasil tangkapan dan pola musim penangkapan ikan tenggiri (Scomberomorus spp.)  di perairan laut Jawa bagian barat berdasarkan hasil tangkapan yang didaratkan di PPI Muara Angke Jakarta Utara
Abstrak: Analisis hasil tangkapan dan pola musim penangkapan sumberdaya ikan tenggiri di Perairan Laut Jawa Bagian Barat sangat penting dilakukan untuk mengontrol dan memonitor kegiatan tangkap yang dilakukan terhadap sumberdaya perairan tersebut sehingga dapat berjalan optimal.
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Judul: Analisis Tingkat Pemanfaatan dan Musim Penangkapan Ikan Tenggiri (Scomberomorus commerson) di Laut Jawa
Abstrak: Ikan tenggiri (Scomberomorus commerson) termasuk dalam sumberdaya ikan pelagis besar dan merupakan hasil tangkapan yang cukup banyak terdapat di Pekalongan. Ikan ini adalah salah satu jenis ikan ekonomis penting yang mempunyai nilai produksi cukup tinggi. Peneiitian ini bertujuan untuk menduga tingkat pemanfaatan dan musim penangkapan ikan tenggiri (Scomberomorus commerson) di Laut Jawa. Daerah pelaksanaan penelitian di Pelabuhan Perikanan Nusantara (PPN) Pekalongan, Kotamadya Pekalongan, Propinsi Jawa Tengah selama bulan Mei-Juni 1999. Data mengenai jumlah hasil tangkapan (kg) dan upaya penangkapan (trip), jenis dan jumlah alat tangkap merupakan data sekunder yang diperoleh dari PPN Pekalongan, tempat pelelangan ikan (TPI) Pekalongan selama kurun waktu 10 tahun (1989 - 1998). Informasi mengenai daerah penangkapan atau fishing ground ikan tenggiri, alat tangkap yang dipakai dan cara pengoperasian penangkapan ikan tenggiri diperoieh melalui wawancara dengan nelayan setempat dan pihak yang terkait.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell