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Abstrak :
Spatial distribution and some ecological aspect of hermit-crabs pagurus spp. In the intertidal shore of Pulau Dua Natural reserve, Banten bay.Pulau Dua natural reserve,as a bird sanctuary, is now threatened by water pullution and environmental degradation. To monitor is condition,an observation of the biotic intertidal comunity has been taken. One of the biotic intertidal comunities is hermit-crab (Pagurus spp). There are two species of crabs, namely Pagurus granosimanus and Pagurus hursutiusculus. Their weight are 202.80 mg and 724.90 mg. and their body lenghts are 13.00 mm and 20.71 mm respectively.The spatial distribution of the species is contagious and cluster (V=16.84)>Environmental factors such as air and water temperature,pH and water salinity,were measured

Abstrak :
Keberadaan ekosistem hutan mangrove di kawasan Cagar Alam Pulau Dua, Desa Sawah Luhur, Kecamatan Kasemen, Kabupaten Serang, Provinsi Banten saat ini banyak memberikan sumber penghidupan yang nyata bagi masyarakat sekitar yang memanfaatkan ekosistem hutan mangrove. Penelitian ini bertujuan mengetahui nilai valuasi ekonomi total hutan mangrove untuk menyusun strategi pengelolaan hutan mangrove di kawasan Cagar Alam Pulau Dua. Penelitian ini menggunakan metode survei dengan analisis data kualitatif dan kuantitatif. Perhitungan valuasi ekonomi total hutan mangrove di kawasan Cagar Alam Pulau Dua seluas 30 Ha adalah Rp 4 milyar/tahun atau Rp 144 juta/ha/tahun. Selanjutnya masing-masing nilai manfaat dibuatkan usaha skenario pemanfaatan di kawasan Cagar Alam Pulau Dua dengan analisis Net Present Value (NPV). Dari nilai NPV ini dapat disusun strategi pengelolaan wilayah pesisir hutan mangrove di kawasan Cagar Alam Pulau Dua yang paling baik dan menguntungkan dengan memanfaatkan lahan untuk usaha pemancingan dengan nilai Rp 48 milyar.

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The presence of mangrove forest in the Pulau Dua Nature Reserve currently provides many tangible livelihood for the communities that use mangrove forest ecosystem. This study aims to determine the valuation of the total economic value of mangrove forests to develop strategies for the management of mangrove forest in the Pulau Dua Nature Reserve. This study uses survey with qualitative and quantitative data analysis. Calculation of total economic valuation of mangrove forest in the Pulau Dua Nature Reserve area of 30 ha obtained is Rp 4 billion/year or Rp 144 million/ha/year. Furthermore, each of the value of the benefit created for use in the business scenario Pulau Dua Nature Reserve with Net Present Value (NPV) analysis can be arranged mangrove coastal zone management strategy in the Pulau Dua Nature Reserve most excellent and profitable is to use the land for fishing effort with a value of Rp 48 billion.

Abstrak :
Further detailed research is required to obtain deeper information on the role of wild birds on the distribution of Avian influenza in Asia. A research has been carried out on February?June 2007 focused on blood sampling (serosurveillance) of wild birds in Pulau Dua Nature Reserves (CAPD), Serang, Banten. The research is aimed to investigate the infection of AI virus sub-tye H5N1 on the studied wild birds. The blood samples were taken from studied aquatic birds, followed by HI (haemagglutination-inhibition) test. A total of 183 samples represent 7 water bird species were taken i.e Cattle egret Bubulcus ibis,Javan pond-heron Ardeola speciosa, Little egret Egretta garzetta, Intermediate egret Egretta intermedia, Black-crowned night heron Nycticorax nycticorax, Great egret Casmerodius albus and Grey heron Ardea cinerea. The result revealed that 41 (23.27%) samples showed the present of AIV antibodies serotype H5N1 which is identified as positive. Data showed 5 positive-test species, including B. ibis (29.27%), E. garzetta (29.27%), E. intermedia (4.88%), Ardeola speciosa (7.32%), and N. nycticorax (29.27%). A total of 41.46% were infected adult individual, whereas 58.54% were juveniles.