Judul: Utilization Status and Options of Management Measures  of Lobster (Panulirus spp.) Fisheries Based in Prigi, Trenggalek, East Java
Abstrak: Berdasarkan KEPMEN-KP No. 19 tahun 2022 menyatakan tingkat pemanfaatan sumberdaya lobster di WPPNRI 573 berstatus over exploited, salah satu sentra perikanan lobster yakni di Perairan Prigi, Trenggalek, Jawa Timur. Data dan informasi status stok lobster di lokasi tersebut mengindikasikan over-exploited. Penelitian ini bertujuan mengevaluasi status pemanfaatan lobster berbasis di Prigi, Trenggalek dengan pendekatan LB-SPR. Hasil penelitian ini menunjukkan bahwa status pemanfaatan lobster batu, lobster bambu, lobster batik, dan lobster pasir menunjukkan kondisi ’fully exploited’. Opsi tindakan pengelolaan perikanan lobster yang dapat diimplementasikan yakni program pencatatan ukuran panjang karapas lobster, pelarangan penangkapan dengan metode selam-kompresor dan pelarangan penangkapan benih bening lobster.
Keyword: Perikanan tangkap

Judul: Business Analysis of Catching and Sustainable  Lobster Utilization in Pangandaran Regency, West Java
Abstrak: Lobster atau udang karang merupakan salah satu komoditas perikanan unggulan pada pasar domestik maupun ekspor. Stok komoditas lobster saat ini masih bergantung pada alam. Sebagian besar di wilayah pengelolaan perairan Indonesia telah mencapai batas maksimum jumlah tangkapan yang diperbolehkan. Usaha penangkapan lobster sebagai salah satu satu pengelolaan wilayah perairan Pangandaran perlu dikaji untuk mengetahui bagaimana sumberdaya lobster dapat dimanfaatkan secara optimal dan berkelanjutan. Tujuan penelitian ini adalah: (1) mengidentifikasi kondisi biologi lobster di Perairan Kabupaten Pangandaran Jawa Barat; (2) menganalisis kondisi pemanfaatan optimal lobster di Perairan Kabupaten Pangandaran Jawa Barat; (3) menganalisis kelayakan usaha finansial penangkapan lobster di Perairan Kabupaten Pangandaran Jawa Barat; dan (4) menganalisis strategi kebijakan pengelolaan lobster secara berkelanjutan di Kabupaten Pangandaran Jawa Barat. Metode yang digunakan pada penelitian ini yaitu: (1) analisis kondisi biologi lobster; (2) analisis bioekonomi spasial; (3) cost benefit analysis; dan (4) analisis deskriptif kualitatif. Penelitian ini menunjukkan rata-rata lobster yang tertangkap di Kabupaten tidak sesuai dengan ukuran layak tangkap. Tingkat CPUE lobster memiliki nilai yang berfluktuatif, namun terjadi penurunan secara signifikan pada tahun 2021, sehingga alokasi penangkapan optimal yang direkomendasikan yaitu 396 trip/bulan. Berdasarkan hasil analisis, usaha penangkapan lobster layak untuk dijalankan. Adapun strategi kebijakan pengelolaan lobster yang dapat dilakukan agar tetap lestari yaitu dimulai dari pelarangan penangkapan benih bening lobster kemudian diikuti dengan kebijakan lainnya. Perlu dilakukan penelitian lebih lanjut mengenai laju pertumbuhan dan perkembangan biomassa lobster dan pengembangan budidaya lobster di Perairan Kabupaten Pangandaran, Jawa Barat., Lobster or crayfish is one of the leading fishery commodities in the domestic and export markets. Lobster commodity stocks are currently still dependent on nature. Most of the Indonesian water management areas have reached the maximum allowable catch. Lobster fishing as one of the management of the Pangandaran waters area needs to be studied to find out how lobster resources can be used optimally and sustainably. The aims of this study were: (1) to identify the biological conditions of lobsters in the waters of Pangandaran Regency, West Java; (2) analyzing the condition of optimal utilization of lobsters in the waters of Pangandaran Regency, West Java; (3) analyzing the financial feasibility of catching lobsters in the waters of Pangandaran Regency, West Java; and (4) analyze the policy strategy for sustainable lobster management in Pangandaran Regency, West Java. The methods used in this study were: (1) analysis of the biological conditions of the lobsters; (2) spatial bioeconomic analysis; (3) costbenefit analysis; and (4) qualitative descriptive analysis. This research shows that the average size of lobsters caught in the district is not suitable for catching size. The lobster CPUE level has a fluctuating value, but there will be a significant decrease in 2021, so the recommended optimal catch allocation is 396 trip/month the harvest season. Based on the results of the analysis, the lobster-catching business is feasible to run. The lobster management policy strategy that can be implemented to remain sustainable is to start with a ban on catching clear lobster seeds, followed by other policies. It is necessary to carry out further research regarding the growth rate and development of lobster biomass and the development of lobster cultivation
Keyword: bioeconomy, optimal fishing, sea lobster, sustainable fisheries

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4