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Advances in Tropical Biodiversity and Environmental Sciences

ATBES
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Published by Universitas Udayana

ISSN : 25496980 EISSN : 26220628 DOI : https://doi.org/10.24843/ATBES.2022.v06.i01

Core Subject : Health, Science, Agriculture, Social,

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Veterinary

The journal encompasses original research articles, review articles and case studies including: Environmental sciences, Biology, Atmospheric sciences, Environmental chemistry, Earth science, Ecology, Forestry, Agro-forestry, Biodiversity, Taxonomy, Ethnobiology, Vegetation Survey, Bioremediation, Geosciences, Organism and Conservation of Natural sciences.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 100 Documents

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Cover, Table of Content and Editorial Team Admint ATBES
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 1 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

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Preliminary study of algasidal activities of the episymbiont bacterial consortium from Enhalus acoroides Gede Iwan Setiabudi; Dietriech G. Bengen; Ocky Karna Radjasa; Hefni Effendi
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 2 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

Seagrass symbiotic bacteria have various functions, one of which is as algaside. There are 2 types of symbionts namely endosymbiont and episymbiont. This study aims to test the initial activity of algaside episymbiont Enhalus acoroides on diatome and dinoflagellate group plankton. The method used for testing is Mixed Algal-bacterial cultures. On media that has been overgrown with algae will be inoculated with episymbiont bacterial consortium E. acoroides. The results of the bacterial consortium research have not shown significant algaside activity. But, on Nitschia sp. showed significant algaside activity. This mean specific activity in the compound or mechanism used as algaside.

Seaweed Growth Rate (Eucheuma cottonii) in Monoculture and Co-Culture Cultivation Systems in Coastal area of Pandawa Beach, Bali Yesi Breanita; Ni Luh Watiniasih; Ayu Putu Wiweka Krisna Dewi
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Seaweed is one of Indonesia's fishery commodities with great potential to be cultivated, the condition of seaweed produced in Indonesia is not optimal yet. This can be seen from the low productivity of seaweed in Indonesia which is caused by the low growth rate. The growth rate of seaweed can be supported by proper planting techniques and cultivation methods. Seaweed farmers generally use planting techniques and traditional cultivation methods called the monoculture system, which is planting one type of plant in an area. As the cultivation systems developed, a new cultivation system was found that supports increased growth of seaweed, namely the co-cultivation. This system is sustainable and environmentally friendly which combines species from various trophic in one system. This research was conducted for 6 weeks from December 2019 to January 2020 in the coastal area of Pandawa Beach, Bali. The data was analysed in Completely Randomized design with three treatments and three replications. The monoculture cultivation system which contain 100 gr of seaweed in a bag was treated as control and co-culture systems were added with 10 and 30 individuals of abalones. The results showed that the growth rate pattern as a measure of weight increased during the time of study. The weight of seaweed was highest in co-cultured treatment with 10 individual abalones. The highest specific growth rate of seaweed occurred in the co-culture system up to 4%/day compared to the monoculture cultivation system only 3.4%/day.

The Composition, Size Distribution and Growth Patterns of Penaeus monodon and Penaeus merguiensis at the Estuary of Tukad Aya, Jembrana Bali Josua Siagian; I Wayan Arthana; Dewa Ayu Angga Pebriani; Suprabadevi Ayumayasari Saraswati
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 1 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Estuary ecosystem has an important role in supporting the life of shrimp. High productivity and the availability of natural food in the estuary ecosystem, will indirectly affect the growth of shrimp. Penaeus monodon and Penaeus merguiensis were two species of shrimp that had economic value with high demand. The purpose of this study was to determine the biological aspects of Penaeus monodon and Penaeus merguiensis shrimp at estuary of Tukad Aya, Bali. Data collection was carried out in February-March 2019 using quantitative descriptive research methods. The determination of the research station was done by purposive sampling. The results showed the total number of shrimps were caught 1,756 individuals, which consist of Penaeus monodon 151 individuals, Penaeus merguiensis 224 individuals and 1,325 individuals of other shrimp. The composition of Penaeus monodon (8.6%) was less than Penaeus merguiensis (12.76%). Shrimp length measurements were divided into 9 groups with a range of values of 55.15-189.95 mm in Penaeus monodon and 31.3-140.1 mm in Penaeus merguiensis. The results of the length and the weight regression in both species of shrimp obtained the value of b <3 so that the growth pattern of shrimp was categorized as negative allometric where length growth was faster than weight gain.

Financial Feasibility Study for The Use of KUPS Credit Scheme on Balinese Cattle Farming (A Case Study in a Farming Group “Satwa Winangun” of Tangkas Village in Klungkung Regency) Budi Rahayu Tanama Putri; I Wayan Sukanata; . Suciani; I Nyoman Sutarpa Sutama
Advances in Tropical Biodiversity and Environmental Sciences Vol 1 No 2 (2017): ATBES
Publisher : Institute for Research and Community Services Udayana University

This research aims to determine the financial feasibility on the farming business of breeding balinese cattle who uses KUPS Credit Scheme. Data was collected through observation and interview. Respondents were all members of the “Satwa Winangun” farmers in Tangkas village, Klungkung Regency. Financial feasibility is determined by evaluating the eligibility criteria such: NPV, Net B/C, IRR, and payback period. The assessment was based on 2 calculation systems, (1) calculation of cash costs in which forage and labor are not calculated as the cost (existing condition), and (2) total cost calculation, in which two components are calculated as cost. Based on the calculation of cash costs, cultivation of Bali cattle by utilizing KUPS credit in this village is financially feasible to be implemented. This was indicated by the NPV value of Rp. 274.103.000, IRR 20.16%, Net B/C 1.55, and investments has been able to return within 3.52 years. The result of sensitivity analysis shows that as far as KUPS interest rate is lower than 18.37% per year, this farming is still financially feasible. Breakeven point can be achieved when the number of cattle parents maintained is 37, or when the price of calves at the age of 6 months is an average of Rp. 1.764.022 per cattle. However, based on the calculation of total cost, this farming system is not financially feasible. This is shown by the negative NPV of Rp. -285.721.000, IRR 2.87%, and Net B/C 0,54. This farming system is not financially feasible despite the 0% / year KUPS rate. The break-even point can be reached when the price of calves at the age of 6 months averages Rp. 4.288.367 per cattle.

The Quality and Antioxidant Content of Salted Eggs Made By Addition of Bay Leave Crude Extract on the Salting Media Kadek Karang Agustina; Ida Ayu Putu Aselya Mardyawati; I Ketut Suada
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 2 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

This research aims to produce salted eggs with antioxidant content from bay leave extract. The study used a completely randomized design (CRD) in which there were 3 treatments, namely, control with 0% bay leaf extract, treatment 1 with adding 25% crude extract of bay leaves, and treatment 2 with a 50% addition of crude bay leaf extract. All treatments were pressed for 14 days before testing. The parameters observed in the study were the antioxidant capacity, albumin index, yolk index, and Haugh unit. The results show that the sated eggs with the different concentration of bay leave extract contain antioxidant 4.445%, 30.853%, and 44.32% respectively, albumin index of treated eggs was lower than control, while Haugh unit of treated eggs was higher than control, and no differentiation of yolk index between the treatments. To conclude, the addition of bay leave crude extract can increase the value of salted eggs without disturbing the quality.

Protection of Thiophenone in Catfish (Clarias sp.) Larvae When Challenged with Aeromonas hydrophila Ana Indriyanti; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 1 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

This research aimed to determine the ability of quorum sensing inhibitor compound thiophenone to protect catfish (Clarias sp.) larvae when challenged with the pathogenic Aeromonas hydrophila. This research was conducted at Fisheries Laboratory, Faculty of Marine Science and Fisheries, Udayana University, from December 2019 to January 2020. The experiment was setting up with four treatments and three replications for each treatment. 10 larvae of catfish were maintained in aquarium 15 cm × 15 cm × 20 cm filled with 1 liter of freshwater and used aeration for oxygen supply. The treatments were treatment A (control), treatment B (addition of A. hydrophila 106 cfu/ml), treatment C (addition of thiophenone 10 µM), and treatment D (addition of A. hydrophila 106 cfu/ml and thiophenone 10 µM). The results showed that the addition of thiophenone 10 µM increased the survival of catfish larvae up to 73% when challenged with A. hydrophila. That was significantly difference (P<0,05) compare to treatment B with survival rate of 43% within 3 days of culture period. Although it was not statistically different (P>0,05), the highest absolute weight and length were found in treatment A of 0,47 g and 0,50 cm, respectively, while the lowest absolute weight and length were found in treatment B about 0,23 g and 0,17 cm, respectively. The water quality such as temperature, pH and DO were still within the range that supported the growth and survival of catfish larvae during this study.

First Molecular Identification of Sunfish in North Bali Water I Made Oka Riawan; Gede Iwan Setiabudi; I Made Merdana; I Putu Mangku Mariasa; Kadek Teguh Wirasastra
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 1 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

Stranded Sunfish in North Bali with full body we collect to do molecular identification. Samples were amplified at the d-loop locus (control region) using the PCR (Polymerase Chain Reaction) method. Primers used in PCR are H16498 as primary front (forward) and L15812 as reverse primer. Similarity value of 95% after alignment with Mola ramsayi (accession number accession AY940824) on GenBank, and the gaps of the nucleotide just 1%. The stranded sunfish identified using partial sequence mtDNA is the same species as the species Mola ramsayi.

The Effects of Shrimp Pond Waste on Water Quality of Patas Village as A Center Of Seaweed (Eucheuma spinosum) Cultivation I Ketut Wija Negara; Suprabadevi Ayumayasari Saraswati; Ni Putu Putri Wijayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 1 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

The intensive farming of vannamei shrimp in Patas village release waste that affected the water quality for seaweed cultivation. The aims of this study were to investigate the effects of shrimp pond waste to water quality and growth of seaweed Eucheuma spinosum in Patas village. The research located in Patas village, Gerokgak district, Buleleng regency, Bali province, during the plantation cycle (45 days) from July to September 2017. The collected data consist of total N, total P, Nitrate (NO3-), Ammonium (NH4+), and Phosphat (PO43-). The results showed the average weight of seaweed near the shrimp ponds was 5.85% g with 0.15% g increment, while at the far location from shrimp ponds was 7.05% g with 0.41% g increment. Its indicated that the Eucheuma spinosum cultivated in far location has a better yield than the near location from shrimp ponds. The Chlorine content in shrimp pond waste affecting the seaweed growth and water quality, such as salinity, pH, DO, Nitrate, and Phosphat.

Identification and Analysis of Diversity of Soil Microorganism Colonies in Limestone Reclamation Land Supiana Dian Nurtjahyani; Dwi Oktafitria; Sriwulan .; Ahmad Zaenal Arifin; Eko Purnomo
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Reclamation of land used for mining is very important because it is related to microbial activity in the soil which has an impact on soil fertility. The purpose of this study is to identify and analyze the diversity of bacterial colonies in the reclaimed land of the former Limestone Mining. The method used in this research was a laboratory experimental method. The results of the study showed that 6 bacterial isolates were found and the highest total plate count in GPS land (GPS system) is 1.97 X 106 cfu, the dominant colony characteristics were irregular shapes, flat edges and milky white color.

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Location Kota denpasar, Bali INDONESIA

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Contact Name
I Made Merdana

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Phone
+6281236118996

Journal Mail Official
atbes@unud.ac.id

Editorial Address
Jl. Kampus Unud Bukit Jimbaran, Badung - Bali, 80361

Location
Kota denpasar,

Bali

INDONESIA