This research is greatly needed in order to

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Abstract. Srau M, Bawole R, Marwa J, Sinery AS, Cabuy RL. 2022. Diversity, composition, structure and canopy cover of mangrove trees in six locations along Bintuni riverbank, Bintuni Bay, West Papua, Indonesia. Biodiversitas 23: 5835-5843. Mangroves provide various benefits of ecological and socio-economic aspects. Such benefits could be delivered if mangrove vegetation is in good condition, indicated by several ecological parameters. This study was conducted to investigate the diversity, composition, structure, and canopy cover of mangrove trees along Bintuni riverbank, Bintuni Bay, West Papua, Indonesia. There were six different locations representing biotic and abiotic conditions. The study only focused on the mangrove tree stage with a total of 175 plots established, of which each plot had a size of 10 × 10 m. The name of mangrove species, tree diameter, total height, and canopy cover percentage was recorded and measured. The result showed that the diversity and composition of mangrove trees varied among the six locations indicated by the importance value index (IVI) parameter. The estuary and sub-estuary areas were dominated by Rhizophora mucronata, while in the further area from the estuary toward the land, the dominant mangrove species was Avicennia sp. The highest number of mangrove trees was found in Kampung Lama 1 with 989 trees/ha (593 trees in 60 plots) with an average diameter of 18.8077 cm (SD±7.0279) and an average height of 8.9477 m (SD±2.2814). The lowest tree distribution was found in Kampung Masuhi with 940 trees/ha (94 trees in 10 plots) with an average diameter of 15.4787 m (SD±3.8205). The highest average of canopy covers was noted in the sub-river estuary with a percentage of 86.97% (SD±85) and the lowest percentage was in Kampung Masina with 59.89% (SD±124.85). Statistical analysis of variance (ANOVA) showed that there was a significant difference in terms of average tree diameter and height among the six locations with a p-value of 0.00021 < 0.05 at 95% CI. There was a strong positive correlation between tree diameter and height, as indicated by R2 of 0.69. In addition, a statistical test of analysis of variance from each location was significantly different among these six locations.

Palupi T, Ilyas S, Machmud M, Widajati E. 2017. Effect of seed coating with biological agents on seed quality of rice. . The research that consisted of two activities was performed at the Laboratory. Experiment 1 the aim to obtain biological agents that have high antagonistic potential against Xanthomonas oryzae pv. oryzae (Xoo) and two biological agents that are compatible to one another. Experiments 2 to determine the effect of rice (Oryza sativa L.) seeds coated with biological agents to improve seed quality and reduce levels of Xoo infection. In the first experiment, four isolates of bacterial antagonists, i.e: isolate Pseudomonas diminuta A6; isolate P. aeruginosa A54; isolate Bacillus subtilis 11/C, and isolate B. subtilis 5/B, were tested for their antagonism activities against Xoo on PSA plates using the method of growth inhibition zone with filter paper. Furthermore, the four antagonists were tested for their compatibility with each other on PSA plates. In the second experiment used a completely randomized design with a single factor (seed coating) consisting of seven levels, namely: negative control, healthy seed; positive control, the seeds contaminated with Xoo; P. diminuta A6 and B. subtilis 5/B; alginate 3% + 1% peat + P. diminuta A6 and B. subtilis % 5/B; arabic gum 3% + 1% gypsum + P. diminuta A6 and B. subtilis 5/B; CMC 1.5% + 1% talc + P. diminuta A6 and B. subtilis 5/B, and bactericide streptomycin sulfate 20%. Results of Experiment 1 showed that isolates P. diminuta A6 has the highest antagonistic potential against Xoo based on the diameter of inhibition zone on Xoo, followed by isolate B. subtilis 5/B. Isolate P. diminuta A6 and B. subtilis 5/B had a good growth compatibility with no antagonism. Therefore, isolates P. diminuta A6 and B. subtilis 5/B were selected and used as biocontrol agents in further studies. Results of Experiment 2 showed that treatment with P. diminuta A6 + B. subtilis 5/B gave the best of the increase of seed vigor, and the decrease of Xoo infection level in the seeds.

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This study aims to obtain an overview of the performance of Corporate Social Responsibility in Teluk Bintuni Regency in the social, economic, agricultural and environmental fields. Measurement of CSR performance is carried out by examining the gap between the level of importance and the performance of CSR implementation, as well as the priorities needed for program sustainability. There were 40 beneficiaries as respondents, located in the villages of Onar Baru, Onar Lama, Saengga, Tanah Merah, Tofoi, Babo and Bintuni. Data were analyzed using Importance Performance Analysis (IPA). The findings show that the level of conformity between interests and performance is 67%, and from the 14 attributes of the assessment, there are 7 attributes of program management that must be prioritized, namely planning and implementing programs that are as expected, accompanied by clear monitoring and evaluation. The program must be in accordance with the objectives, provide opportunities for the community for community involvement to provide input and have an orientation to the satisfaction of the target community.

The waters of South Sorong have potential shrimp resources, including abundant banana shrimp (Penaeus merguiensis de Man, 1888). This study aims to obtain information about the morphometric characteristics and growth of banana shrimp in the fishing area around the waters of Kampung Bakoi, South Sorong Regency, West Papua Province. Data collections were carried out in June and October 2019 using descriptive methods with direct observation techniques. Based on the results of data analysis, it was found that the total length of shrimp caught in Bakoi Village was in the range of 10 - 26.8 cm and the most were caught measuring 15.2 cm to 16.4 cm. The model of the relationship between length and weight of banana shrimp in Bakoi Village follows the equation Log W= 1,630+2,659 Log (L) or the form of negative allometric growth. Analysis of the relationship between total length (Y) and carapace length (X) (including rostrum) and the relationship between total length and carapace length (Z) (excluding rostrum) obtained the best estimator models, each following the logarithmic equations L = -2,188 + 10,226 Ln(PK) and L = 4,439 + 9,201 Ln(PKt) respectively.

In general, the presence of green open space as one element in the urban spatial is very weak and the potencial is reduced portion because they do not have a high economic value. One function of green open space is for micro-climate amelioration, making green open space as a lugs of the city for helping the formation of a cool and comfortable climate in the vicinity. This comfort is determined by the interdependence between the factors of air temperature, air humidity, light and wind movement. Vegetation can improve the quality of the local climate or reducing temperature named micro-climate amelioration function as well. This study aimed to evaluate and redesign the typology of green open space to create green resolution with conversion of carbon to compansate for changes in the landscape that occur as a result of ongoing development.The study was conducted in urban areas of West Papua Province with five cases were selected purposively. Refers to the Ministry of Public Work No. 5 of 2008 and some related references, the results of research (qualitative exploration research) showed that 3 of the 5 cases have not met the ideal typology of Green Open Spaces, while two other cases have met the ideal typology for ecological function, but remain in need of the final material. Redesigns of Green Open Spaces that has been generated from this study are expected to restore ecological functions with holding the ecologycal aspect as a priority matter to consider as well. Therefor those can be used by local goverments for planning repairs or improvements in the future. ABSTRAK: Secara umum, keberadaan ruang terbuka hijau sebagai salah satu elemen dalam tata ruang kota sangat lemah dan potensinya berkurang karena tidak memiliki nilai ekonomi yang tinggi. Salah satu fungsi ruang terbuka hijau adalah untuk perbaikan iklim mikro, menjadikan ruang terbuka hijau sebagai lug kota untuk membantu pembentukan iklim yang sejuk dan nyaman di sekitarnya. Kenyamanan ini ditentukan oleh saling ketergantungan antara faktor-faktor suhu udara, kelembaban udara, cahaya dan pergerakan angin. Vegetasi dapat meningkatkan kualitas iklim lokal atau mengurangi suhu yang disebut fungsi perbaikan iklim-mikro. Penelitian ini bertujuan untuk mengevaluasi dan mendesain ulang tipologi ruang terbuka hijau untuk membuat resolusi hijau dengan konversi karbon sebagai pendamping untuk perubahan lanskap yang terjadi sebagai CASSOWARY Volume 2 (2): 147 -161