Judul: Use of Cellular System on Growth Performance of Crayfish (Cherax quadricarinatus)
Abstrak: Lobster air tawar (Cherax quadricarinatus) memiliki sifat kanibalisme dan perilaku makan teritorial, sehingga metode pemberian pakan menjadi kendala dalam pemeliharaan berkepadatan tinggi. Penggunaan sistem cellular dapat menjadi salah satu upaya mengurangi persaingan pakan antara lobster. Tujuan penelitian mengevaluasi penggunaan sistem cellular terhadap kinerja pertumbuhan pada lobster air tawar. Penelitian menggunakan tiga perlakuan dan tiga ulangan yaitu pemeliharaan lobster air tawar tanpa sistem cellular, dengan sistem cellular wadah transparan, dan wadah semi transparan. Bobot awal rata-rata lobster air tawar 8,03 g dan dipelihara selama 60 hari. Hasil menunjukkan nilai Spesific Growth Rate, Feed Efficiency dan Protein Efficiency Ratio pemeliharaan lobster air tawar menggunakan sistem cellular berpengaruh nyata (P<0,05). Berdasarkan hasil, pada perlakuan sistem cellular transparan SGR 5,75±0,22% dan FE 53,13±0,71%. Pada perlakuan sistem cellular semi transparan SGR 5,38±0,11%, dan FE 50,00±0,47%, perlakuan dengan sistem cellular lebih tinggi dari perlakuan kontrol dengan nilai SGR 3,26±0,54% dan FE 31,75±0,19%. Sedangkan nilai Survival Rate menunjukkan perlakuan yang diberikan tidak berpengaruh nyata (P>0,05). Kesimpulan penelitian, kinerja pertumbuhan lobster air tawar terbaik menggunakan pemeliharaan sistem cellular., Freshwater lobster (Cherax quadricarinatus) has cannibalism and territorial feeding behavior, so that the method of feeding becomes an obstacle when reared in high stocking density. The cellular system can be used as an effort to reduce cannibalism and feeding competition crayfish. The purpose of this study was to evaluate growth performance and feed efficiency of crayfish reased with the cellular system. The study was designed using three treatments and three replications, namely treatment without a cellular system, treatment with a cellular system in a transparent container, and treatment with cellular system using semi-transparent container. The average initial weight of crayfish is 8.03 g and reared for 60 days. The results showed that the Spesific Growth Rate, Feed Efficiency and Protein Efficiency Ratio values of crayfish rearing using a cellular system had a significant effect (P<0.05). Based on the results, in the treatment of transparent cellular systems, SGR was 5.75±0.22% and FE was 53.13±0.71%. In the semi-transparent cellular system treatment, SGR 5.38±0.11%, and FE 50.00±0.47%, the treatment with the cellular system was higher than the control treatment with SGR values of 3.26±0.54% and FE 31 ,75±0.19%. While the Survival Rate value indicates the treatment given has no significant effect (P>0.05). The conclusion of the study, the best crayfish growth performance using cellular system maintenance.
Keyword: cellular system, crayfish, feed, growth

Judul: Pertumbuhan dan kelangsungan hidup lobster air tawar (Cherax quadricarinatus) pada pendederan di dalam bak dengan padat penebaran 100 hingga 175 ekor/m2
Abstrak: Lobster rearing is usually carried out an aquarium. Rearing tank has a different environmental characteristics compared with the aquarium so leads to divergence productivity of both rearing receptacles. This research aims at obtain an optimum productivity of rearing lobster in the tank. Lobster average length of 3,15+0,22 cm or average weight of 0,794+0,19 gram are kept on the vessels measuring of 200x150x50 cm at densities of 100, 125, 150, and 175 fish/m2. During the rearing, the lobsters were fed pellet, oligochaeta, carrot, and water quality managed through siphoning and water exchange. Result of the experiment showed that the stocking density had no significant effects on survival, daily growth rate, and growth in absolute length (p> 0,05). The results showed that 125 fish/m2 produces the best economic performance.
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Judul: Iklim Pulau Bali
Abstrak: Curah hujan rata-rata bulanan di Bali berkisar antara 47 mm sampai 327 mm, dengan curah hujan maksimum jatuh pada bulan Januari dan minimum pada bulan Agustus. Total hujan setahun rata-rata di Bali 1901 mm. Pada muim angin barat, curah hujan di utara pegunungan relatif sama dengan di selatan pegunungan, sedangkan pada musim angin timur curah hujan di selatan pegunungan lebih tinggi daripada di utara pegunungan. Isohyet tiap bulan di Bali menunjukkan pengaruh ого- grafis terjadi di bagian timur P. Bali yang mengakibatkan di selatan pegunungan lebih basah daripada di di utara pegunungan selama musim kemarau (monsoon timur). Dari isohyet tersebut dapat juga dilihat bahwa potensi air tertinggi ada di bagian timur P. Bali ini khususnya di bawah kaki G. Agung. Musim angin barat di Bali terjadi pada bulan Desember sampai dengan bulan Maret, dan pada bulan April sampai bulan September merupakan musim angin timur. Musim panca roba terjadi pada bulan Oktober sampai bulan November. ..
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