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Advances in Tropical Biodiversity and Environmental Sciences
Published by Universitas Udayana
ISSN : 25496980     EISSN : 26220628     DOI : https://doi.org/10.24843/ATBES.2023.v07.i02.p01
Core Subject : Health, Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other
The scope of the journal covers scientific and technological aspects from all fields that have general relevance to tropical biodiversity and environmental sciences, including investigations on tropical biodiversity, systematics and taxonomy, terrestrial and aquatic ecology, wildlife management and control, ethnobotany and ethnozoology, tropical plant and animal cultivation, general veterinary, natural product chemistry, ecotourism, environmental remediation and management, and geographic information systems (GIS), remote sensing, and other modeling applications for environmental studies.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 73 Documents
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Impact of the COVID-19 Pandemic on the Management of Coral Aquaculture Alexander Regio Widarto; I Nyoman Dodik Prasetia; Gede Iwan Setiabudi
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 1 (2024): February 2024: Pages 1-57
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i01.p06

Abstract

This research aims to determine the impact of the COVID-19 pandemic on coral aquaculture businesses and management strategies in dealing with the pandemic. This research was a quantitative descriptive research. This research used the triangulation method (questionnaire, interview, and observation). This research was conducted at three coral aquaculture companies and a cultured coral transplantation site owned by a private company in Bali. The results showed that the COVID-19 pandemic had a more favorable impact on the coral aquaculture industry, such as the ability to become a source of income for the locals during the pandemic. The difficulties in conducting export activities and restricted mobility were some of the challenges encountered by coral aquaculture businesses during the pandemic. Additionally, the results showed that in order for coral aquaculture businesses to survive the pandemic, management strategies and adaptations are needed.
Effectiveness of Automatic Feeder in Catfish Cultivation (Clarias gariepinus) with Biofloc System Alfajri Yuda Permana; Ayu Putu Wiweka Krisna Dewi; Gde Raka Angga Kartika
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 1 (2024): February 2024: Pages 1-57
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i01.p08

Abstract

Catfish is a popular fish species in the community and is cultivated by many people. Catfish are considered superior to other freshwater fish. One system that can improve catfish quality and ability is the biofloc system. Biofloc system is considered more effective compared to other systems because it increases the productivity of cultivated fish. Unfortunately, cultivation in general is considered a traditional system that only uses manpower to do all activities such as feeding. One application of feeding technology is automated feeding machines. This research is aimed to determine the effectiveness of the automatic feeder on catfish cultivation with biofloc system. The research method was experimental and compared 2 treatments, which were A (biofloc without an automatic feeder) and B (biofloc with an automatic feeder). Fish samples used were 5-7 cm in size and reared for 44 days at the cultivation pond of Marine and Fisheries Faculty, Udayana University. The results of this research are SGR, FCR, and SR. Based on the results, treatment B had better SGR (3.37%), FCR (2.03) and SR (45%) compared to treatment A. The conclusion of this research is the usage of automatic feeder in catfish cultivation with biofloc system has better results than without the usage of automatic feeder.
Identification of Eucheuma cottonii Seaweed Destruction Organisms at Geger Beach Nusa Dua, Bali Nike Aryanta Manalu; I Wayan Arthana; Ayu Putu Wiweka Krisna Dewi
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 1 (2024): February 2024: Pages 1-57
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i01.p09

Abstract

Eucheuma cottonii seaweed cultivation in general has a problem that is the attack of disruptive organisms in the form of pests that can cause damage to seaweed plants. This study aims to find out the type, behavior and abundance of seaweed destruction organisms on Eucheuma cottonii. Observations were made at 3 points of stakes in the coastal waters of Geger Nusa Dua, Bali. Data collection was conducted through direct observation at the research site using the Underwater Visual Census (UVC) method. The results of the data collection found 19 families of organisms that were self-exposedfrom 17 families of disruptive organisms and 2 families of non-disruptive organisms from 3 points of observation. The disruptive organisms found were: Siganidae, Holothuridae, Pinguipedidae, Labridae, Blenniidae, Paralepididae, Trichiuridae, Palmariaceae, Ulvaceae, Siphonocladaceae, Cladophorales, Caulerpaceae, Halimedaceae, Gelidiaceae, Hypneaceae, Hydrocharitaceae and Corallinaceae. While non-disruptive organisms found were Engraulidae and Scorpaenidae. Disruptive organisms have individual living behaviors (solitary) and swimming habits of disruptive organisms that swim above and crevices of seaweed Eucheuma cottonii. Treatment of disruptive organisms that feed on talus and attach / epiphytes on the surface of seaweed talus Eucheuma cottonii. The conclusion is individual abundance in stake II had an abundance of disruptive organisms with the highest result of 3.88 ind/m2, while in stake I obtained the lowest abundance calculation of 2.34 ind/m2,and in stake III which was 2.62 ind/m2.
Sexual Dimorphism of Shell Turtles (Cuora amboinensis) in the Ex-situ Conservation Area, Bengkulu University, Sumatra Rezki Nopantri; Bhakti Karyadi; Deni Parlindungan; Sutarno Sutarno; Aceng Ruyani; A. A. Sukarso
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 2 (2024): June 2024: Pages 58-118
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i02.p09

Abstract

This research aims to determine the physical differences between male and female turtles based on the secondary morphological characteristics of Cuora amboinensis. The method used in this research is a visual method with metric data presented in photos and measurement data, with a sample size of 20 individuals consisting of 12 females and 8 males. The research was carried out in September–December 2023 at the biodiversity study center at Bengkulu University. Observation results identified male C. amboinensis turtles with larger heads and brighter chins than female turtles. The carapace is oval with small bumps on vertebral 5 and wider marginal edges than in female turtles; the male's plastron displays a distinctive concave while the females have a flatter plastron. Male turtles have longer and thicker tails than female turtles. There are differences in the morphological characteristics of male and female C. amboinensis turtles, specifically in the head, carapace, plastron, and tail morphology.
Analysis Export of Tuna-Skipjack-Mackerel Fisheries through Bali Province Diah Ayu Safitri; Anwar
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 3 (2024): October 2024: Pages 119-170
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i03.p05

Abstract

One of the main export commodities for Indonesian fishery products is tuna-skipjack-mackerel, the largest in the world. Bali waters have significant fishery potential for catching tuna, skipjack, and mackerel. The development potential of the tuna-skipjack-mackerel fishing industry must be considered. Denpasar Fish Quarantine Center for Quality and Safety Control of Fishery Products (BKIPM Denpasar) is the agency authorized to provide quality and safety assurance for fishery products. This research aims to determine the export conditions of tuna-skipjack-mackerel fishery products to various destination countries from Bali Province based on 2019-2023 time series data. This research used purposive sampling methods. Export data is grouped based on destination country, frequency, and volume of export commodities. Data was obtained from the Denpasar Fish Quarantine Center, Quality Control, and Fishery Products Safety (BKIPM Denpasar). This research was conducted in February 2024. The results of this research are less stable in export volume; ups and downs in volume occur every year. Export frequency and volume are not directly proportional. The frequency of exports was quite high in 2019, reaching almost 5 thousand trips, and decreased drastically in 2020, with a total of around 2.9 thousand trips. COVID-19 in 2019 significantly impacted it, dropping to half the export frequency. Tuna-skipjack-mackerel products supply various export markets, with 46 destination countries recorded from Bali Province across all chains between 2019 and 2023. Japan, the United States, and Australia are the biggest customers of tuna-skipjack-mackerel products. The tuna-skipjack-mackerel commodity types are divided into ten species.
Bongso River Water Quality Status Due to Traditional Oil Mining Activities Using the Pollution Index Method Ahmad Niamul Abrori; Laily Agustina Rahmawati; Heri Mulyanti
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 2 (2024): June 2024: Pages 58-118
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i02.p04

Abstract

Traditional petroleum mining activities in 137 old wells in Wonocolo Village, Bojonegoro Regency Council District, East Java, have a positive impact on the local community's economy, but also have a negative impact on the environment in the form of pollution of surface water. The study aims to determine the quality of the Bongso River in the traditional Wonocolo petroleum mining area based on physical and chemical parameters (temperature, pH, DO, TSS, TDS, COD, phenol, and nitrate), as well as analyze the level of pollution in the river using the Pollution Index method. The results of the Bongso River water quality analysis contained parameters that exceeded quality standards, namely, SB 1 station with COD levels of 47.1 mg / L and Phenol 0.196 mg / L. SB 2 station with TDS levels of 1010 mg / L, TSS 93.60 mg / L, COD 94.0 mg / L and phenol 0.552 mg / L. SB 3 station TDS levels 1190 mg / L, TSS 1778 mg/L, COD 84.7 mg/L, and phenol 0.747. Station SB 4 levels TDS worth 1450 mg / L, TSS 1019 mg / L, COD 28.2 mg / L, phenol 0.632 mg / L and DO levels do not meet the minimum quality standards of 3.4 mg / L. Station SB 5 levels TDS 1310 mg / L, COD 103.5 mg / L and phenol 0.364 mg / L. Station SB 6 levels TDS 1400 mg / L, COD 65.9 mg/L and phenol 0.585 mg/L. Station SB 7 levels TDS 1230 mg/L, TSS 54.80 mg/L and phenol 0.556 mg/L. Salinity of the Bongso River increased from upstream (SB1) to middle (SB2); 0 ppt to 4 ppt (rainy season). Water quality status using the IP method shows that SB 1 and SB 5 stations are categorized as Lightly Polluted. Meanwhile, SB 2, SB 3, SB 4, SB 6, and SB 7 stations are categorized as Moderately Polluted.
Echinoderms Community Structure In Pegametan Bay, Buleleng, Bali Arya Maulana Rabani; Dewa Ayu Angga Pebriani; I Ketut Wija Negara
Advances in Tropical Biodiversity and Environmental Sciences Vol. 8 No. 3 (2024): October 2024: Pages 119-170
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2024.v08.i03.p07

Abstract

Echinoderms are key ecological organisms that play a protective role in balancing the marine ecosystem by breaking down trash or leftover organic material that is not used by other species. Echinoderms are marine biota that are sensitive to changes in water characteristics, so they can be used as bioindicators. Echinoderm habitats can be found in all marine ecosystems, but the highest diversity is found in intertidal areas, which are easily affected by land activity. One of the intertidal areas that is often used by humans is the Bay Area. This research aims to find out the types of echinoderms and analyze the community structure of echinoderms in Pegametan Bay, Bali. The research was carried out using the method of line transect at 18 points for data on the number and types of echinoderms in depth 1x1 m quadrat transect. Based on the observations, it was found that there are 3 classes of echinoderms that live on Bingin Beach (Echinoidea, Asteroidea, and Holothuroidea) with 3 orders, namely Diadematoida, Valvatida, and Holothuriida. The most commonly found species is D. setosum from the Echinoidea class. The structure of the echinoderm community in Pegametan Bay is shown by an average density value of 12.60 ind/m² with a diversity index value of 0.46, which is classified as low diversity; a uniformity index value of 0.36, which is relatively low; and a dominance index of 0.73, which is relatively high. Based on the results obtained, it can be concluded that the diversity index in Pegametan Bay is low, the evenness index is relatively low, and the dominance index is high. The values of temperature, pH, dissolved oxygen (DO), and salinity are still within the standard limits for marine biota.
Isolation of Salmonella sp. from Eggs Commonly Sold in Tondano Market, Minahasa, North Sulawesi Britney Meissy Pandoh; Herry Maurits Sumampouw; Helen Joan Lawalata; Danny Christian Posumah; Anita Constanci Christine Tengker; Yermia Semuel Mokosuli
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 1 (2025): February 2025: Pages 1-66
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i01.p01

Abstract

Various types of eggs are one of the foodstuffs that are in great demand by the community, especially the people of North Sulawesi, because they are cheap and easy to obtain. Furthermore, eggs have the nutritional content of animal protein, which is good for humans. Numerous studies on eggs have revealed that microorganisms, including Salmonella sp., can contaminate them. This study aims to detect Salmonella sp. bacteria in various types of eggs in the Tondano Market, Minahasa, North Sulawesi. This research uses a descriptive method (qualitative method) to describe an event objectively. We collected up to three samples, the first of which is located outside the market. Three samples of purebred chicken eggs, duck eggs, and quail eggs were taken. Then, the second point inside the market was taken: 3 samples of purebred chicken eggs, duck eggs, and quail eggs from the same trader. To prepare the samples, the eggshells were separated from the insides, then 2 grams of the eggshells were crushed and mixed with 5 ml of Buffered Peptone Water (BPW) 0.1%. This mixture was then added to 10 ml of Rappaport Vassiliadis (RV) media, followed by scraping onto Salmonella Shigella Agar (SSA) media, and then inoculating onto Xylose Lysine Deoxycholate agar (XLD) media. Four eggshell samples tested positive for Salmonella sp. bacteria: duck eggs (TB 1), quail eggs (TP 1), broiler eggs (TA 2), and quail eggs (TP 2), while two samples were negative: broiler eggs (TA 1) and duck eggs (TB 2). In contrast, two samples were negative for Salmonella sp., namely broiler eggs (TA 1) and duck eggs (TB 2).
The Use of Beauveria bassiana as Biological Control against the Pepper Aphid Insect Pest Myzus persicae Sulz Semuel Harpandi; Jantje Ngangi; Helen Joan Lawalata; Sukmarayu Pieter Gedoan; Utari Satiman; Yermia Semuel Mokosuli
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 1 (2025): February 2025: Pages 1-66
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i01.p02

Abstract

This research is motivated by chilies, which are one of the plant products that become raw materials for daily needs and are therefore classified as a secondary food source. Insect pests are a factor affecting chilli productivity, use of fungi as biological controllers, to determine the use of the fungus Beauveria bassiana as a biological control against the insect pest of chilli aphids Myzus persicae Sulz, the research method used in this study is an experimental method using the complete randomized design (CRD) method with five treatments and three replications, where each plot has five samples, the treatment doses were Control, P1 (6 g/500 ml), P2 (7 g/500 ml), P3 (8 g/500 ml), P4 (9 g/500 ml) and Lethal Dose 50, the results of this study showed that the application of B. bassiana had a significant effect on the mortality of M. persicae Sulz with the mortality obtained was 0.75% of the total number of samples 120 outside the control treatment, so the higher the dose, the higher the mortality, the LD50 result was 6.025 g/ml, showing that the toxicity of B. bassiana falls into the category of mild toxins. Therefore, we can conclude that the fungus B. bassiana serves as an effective biological control agent against the insect pest M. persicae Sulz.
Dry Transportation of Sea Bass Using Clove Oil Megi Rosmiati Mbuilima; Yuliana Salosso; Ade Yulita Hesti Lukas
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 1 (2025): February 2025: Pages 1-66
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i01.p10

Abstract

White sea bass (Lates calcarifer) is a valuable fishery commodity that holds a significant market share, including as an export product. The high demand for white sea bass necessitates its seamless transportation. However, most fish experience stress to the point of death during transportation, and accommodations are expensive. Therefore, dry system transportation is a method that has the potential to be applied to reduce fish stress and lower transportation costs. This research was conducted using a completely randomized design (CRD) with three treatments and three replications, utilizing white snapper seeds measuring 5-6 cm. The treatments tested had different densities, specifically treatment A with 10 individuals, treatment B with 15 individuals, and treatment C with 20 individuals. Fish transportation was carried out with previous fish anesthesia, using commercial clove oil as an anesthetic at a dose of 0.10 ml/L of seawater. Based on observations of transportation during the 1-hour journey, treatment C with a density of 20 animals was the best , namely with an inductive time of 4 minutes, a stun time of 1 hour, and a sedative time of 18 minutes, resulting in a post-transportation survival rate of 78% and a post-rearing survival rate of 76%. The use of clove oil was effective in maintaining the survival rate of white snapper (Lates calcarifer) seeds after dry transportation and throughout the research period.

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