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Abstrak :
ABSTRAK
Daerah produksi udang terbesar di Indonesia adalah Provinsi Lampung, diantaranya yaitu area tambak yang ada di Teluk Hurun dimana komunitas mangrove disana masih terjaga kondisinya. Analisis yang digunakan dalam penelitian ini menggunakan model analisis deskriptif dengan pendekatan keruangan secara komparatif. Pada tahap awal dilakukan perbandingan luasan mangrove dengan faktor fisik perairan Teluk Hurun yang terdiri atas salinitas, konsentrasi klorofil-a, dan total suspended solid (TSS). Perbandingan tersebut dilihat pada dua musim yang berbeda dan akan menghasilkan potensi budidaya tambak. Pengaruh mangrove terhadap produktivitas tambak didapat dari hasil wawancara dengan narasumber di lapangan dan hasil analisis deskriptif komparatif dari potensi budidaya dan produksi pada masing-masing unit analisis. Secara alami dapat dikatakan bahwa komunitas mangrove di wilayah Teluk Hurun tersebar secara linier sepanjang garis pantai, namun saat ini sebaran komunitas mangrove hanya terkonsentrasi pada wilayah utara Teluk Hurun. Kondisi tersebut berbanding terbalik dengan pertumbuhan tambak yang lebih banyak terjadi di wilayah selatan Teluk Hurun. Komunitas mangrove memiliki pengaruh tidak langsung terhadap produktivitas tambak. Pada dasarnya keberadaan komunitas mangrove berpengaruh terhadap kondisi fisik perairan dimana kondisi perairan tersebut akan menentukan produktivitas tambak melalui penggunaan kapur, pemberian pakan, aplikasi penumbuh plankton, hingga pengerukan tandon pengendapan.

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ABSTRACT
Lampung is a largest shrimp production area in Indonesia, among which the existing farms in the Gulf Hurun where mangrove communities there are still awake condition. The analysis used in this study uses descriptive analysis model with spatial comparative approach. Comparisons were made through comparison of two factors, physical factors and land cover. Land cover will be one of the reference as a comparison against the physical factors consisting of salinity, chlorophyll-a, and total suspended solids (TSS). The comparison is seen in two different seasons and also a description of the results of interviews with sources in the field. Naturally it can be said that the mangrove communities in the Gulf region Hurun spread linearly along the shoreline, but the current distribution of mangrove community is concentrated in the northern region of the Gulf Hurun. The condition is inversely proportional to the growth ponds that are more prevalent in the southern region of the Gulf of Hurun. Mangrove community has no direct effect on the productivity of the pond. Basically, the existence of mangrove communities affect the physical condition of the waters where the water conditions will determine the productivity of the pond through the use of lime, feeding, plankton grower application, until dredging reservoir sedimentation.

Abstrak :
The ecological role of mangrove ecosystem is economically, socially and physically, highly significant. Despite the many benefits provided by mangroves, they tend to be under intense pressure from competing resource used by local vullagers, in particular, as firewood, or charcoal. The ecosystem is typically crucial, hence the benefits and values need to identify and estimate economically. The objectives of this research are: (1) to identify economic values of mangroves based on ecosystem benefits; and (2) to estimate total economic value (TEV) of "use-value" and "non-use value" of mangroves. The method of economic valuation was applied to estimate TEV based on the benefits of mangroves ecosystem (direct-use value, indirect-use, option use, and existence use values). Results of this research are as follows. (1) Functions and benefits of the mangrove ecosystem in the village of Tawiri Consisted of direct-use (fuel wood collection for the subsistence needs of local villagers, wild animals used by humans for subsistence purposes, near by fishing activities); indirect-use (natural barrier to shoreline erosion, highly nutritious food source for animals in the mangrove area), option use (biodiversity bnfits), and existence use (WTP). (2) The TEV of mangrove was Rp 24,887,887 per year, consisting of direct-use value of Rp 11,299,500 per year (45.40%), indirect-value of Rp 9,098,077 per year (36.56%), exixtence value of Rp 4,083,750 per year (16.41%) and optionvalue of Rp 406,560 per year (1.63%).

Abstrak :
The diversity of mangrove at West Bali National Park has not been reported completely. The exploration was conducted from 12 - 16 June, 2011 from Banyuwedang to Gilimanuk and from Gilimanuk to Sumbersari-Melaya mangrove forests. The result showed that 18 families consist of 21 genera and 28 mangrove species were recorded at West Bali National Park, these are 11,5% of the Indonesian mangroves.

Abstrak :
This study deals with an application of SPOT satellite data for mangrove forest inventory in Cimanuk Delta West Java (Indonesia). Mangrove of the area (7100 Ha) has been gradually decreasing by human pressure especially for fisheries purposes. In fact, mangrove here is a result of afforestation since 1960, with Rhizophora mucronata and R. apiculata as main planted species. Other species are Lumnitzera racemosa, Excoecaria agallocha, Bruguiera gymnorhiza and Avicennia which grow naturally. SPOT data were digitally analysed using Didactim software. A color composite image was analysed. A barycentric supervised classification and a textural analysis were applied. As an intermediate data, infrared color aerial photographs at 1/30,000 (1981) were interpreted manually. At least two mangrove types of mangrove could be identified from the SPOT image. Dense mangrove was found in Petak 7, Petak 8, Petak 9, and Petak 12. In the other Petaks, mangrove were less than 20% of their surface. Mangrove of Rhizophora in 26 Petaks covered 290 Ha only.