Judul: Shrimps Caught by Set Net in Different Mangrove Conditions in the Estuary of Sungai Kakap, West Kalimantan
Abstrak: Mangrove ecosystem provides many benefits to local people both ecologically and economically. Unfortunately, the mangrove forest has been degraded, due to the increasing pressures of anthropogenic activities. Consequently, it would diminish most of the life supported by mangrove, and threaten the security of local people livelihood. This research was carried out to study the influence of mangrove plant conditions on shrimp catches in set nets and how this contribute to local management plan. The method applied for mangrove was transect line, and shrimps were collected with set net, and then they were related each other to analyze the influences. This study showed that links between mangrove plant conditions (area, density and coverage) and shrimp catch total and carapace length give positive regression. Significant positive correlations are shown by the relationship between percentage of mangrove area and number of Udang Ambai (Metapenaeus lysianassa) with 1.0-1.5 cm carapace length with a simple linear regression equation Y=23.5+0.3X (R²=0.62). The communities depend on mangroves and lives supported by them, though the people were not found very aware about ecology, functions, and threats of these resources. Therefore, the community involvement on the management of mangrove ecosystem and shrimp catch is required. Zoning through the participation of community is regarded as a major tool to achieve the goal of sustainable use of coastal resources.
Keyword: 

Judul: Kajian penangkanapan udang putih kecil (Metapenaeus lysianassa, de Man 1888) sebagai aplikasi pengelolaan di muara Sungai Kakap Kabupaten Pontianak Kalimantan Barat
Abstrak: Small white shrimp (Metapenaeus lysisanassa) fishery using setnets in Sungai Kakap estuary increased from the year 1994 to 2005 and this sector gave a lot of benefit for fishermen. The advantages of this shrimp fishery are providing work and income for local people, providing of nutritious food for human life and local government income from tax or retribution. However, the increasing fishermen effort to catch small white shrimp in this estuary is estimated to be followed by decreasing of their productivities and declining of CPUE trend. The objectives of the study are to obtain distribution pattern of small white shrimp caught by setnet and to obtain CPUE (Catch per Unit Effort) trend of small white shrimp fishery. Eleven stations were established in this site to learn distribution pattern of small white shrimp caught by setnet and time series data of catch and effort was used to calculate the trend of CPUE. The study got information that distribution pattern of small white shrimp was caught in higher numbers in salinity interval 5 – 7‰. Bigger sizes of small white shrimp were found in salinity 10 - 20‰. CPUE of small white shrimp caught by setnet tends to decrease during twelve years.The study result is expected to give information for management plan to manage of small white shrimp fishery.
Keyword: 

Judul: Sintesis dan pengukuran konduktivitas listrik, sifat termal, serta struktur konduktor superionik gelas AgBr-Ag2O-B2O3
Abstrak: Koncluktor superionik adalah padatan ionik yang mempunyai koncluktivitas listrik tinggi yaitu lebih besar dari 10-4 .0·1 cnf1, tetapi biasanya terjadi pada suhu yang tinggi. Pcneli:ian ini berlujuan untuk mensintesis clan memperoleh bahan konduktor superionik yang berbasis gelas (AgBr)., (Ag20-B20_1)1_, pacla suhu kamar, serta karakterisasi konduktivitas listrik, sifat tcrrnal dan perubahan stmktur dari sistem gclas terscbut. Konduktor superionik berbasis gclas (AgBr)x (Ag2O-B2O3)1.x dcngan x yang bcrvariasi yaitu 0,5; 0,7; dan 0,8 tclah disintcsis dcngan menggunakan teknik pendinginan ccpat. Carnpuran lcbunu1 AgBr dan Ag20-B203 didinginkan secara cepat dalam lingkungan nitrogen cair sehingga terbentuk (AgBrt (Ag20-B203)1_,. Pcngukuran konduktivilas listrik dilakukan pada berbagai komposisi x dcngan earn mcngukur tahanan listriknya dengan suhu yang bervariasi menggunakan mctoda ac yang mcnerapkan: prinsip jembatan Wheatstone. Untuk menganalisis sifat struktur digunakan difrnksi sinar-x, sedangkan pengukuran sifat tennal dari konduktor digunakan Differential 7'lierma/ Analysis. Hasil pengukuran mcnunjukkan bahwa konduktivitas listrik scnyawa (AgBr), (Ag20-B203)1• , naik dcngan pcnambahan garam AgBr pada sistem gelas Ag2O-B2O3 mcncapai nilai konduktivitas yang maksimum kcmudian nilai tcrsebut akan l\mm kemba!L Konduktivitas listrik yang optimum didapat pada komposisi x = 0,8, yaitu 9,12 · 10-6 n·1 cm-1 pada suhu kamar. Oleh sebab itu scnyawa (AgBr), (Ag20- B203)1.x bclum dapat digolongkan sebagai konduktor supcrionik pada suhu kamar. Namun scnymva tcrscbut dapat bcrlaku scbagai konduktor superionik jika suhu dinaikkan hingga 110°C dcngari konduktivitasnya 1,22 · 10··1 rr1 cnf1• Hasil analisis tcnnal untuk semua komposisi menunjukkan suhu transisi gelas sekitar l 75°C, scdangkan pola difraksi yang tcrjadi pada x = 0,5 dan x = 0,8 adalah kristalin, dan pada x = 0,7 rnempunyai polu amorf.
Keyword: