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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 7 Documents

Search results for , issue "Vol 5 No 2 (2021): ATBES" : 7 Documents clear

Effect of Giving Different Doses of Vitamin E in Feed to the Level of Gonad Maturity of Tilapia (Oreochromis niloticus) Gunawan Tarigan; I Wayan Arthana; Dewa Ayu Angga Pebriani
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

One of the nutrients that can be given to brood feed fish to improve reproductive performance and egg quality is vitamin E. Vitamin E has a very important role in increasing fish reproduction because vitamin E functions as an antioxidant that can maintain the presence of fatty acids and prevent fat oxidation in the fish cell membrane and can accelerate the secretion of reproductive hormones. This study aims to determine the effect of vitamin E in feed at different doses on the level of gonad maturity of tilapia. The research was conducted at the Fisheries Laboratory of the Faculty of Marine and Fisheries, Udayana University from July to August 2020. The samples of fish tested were tilapia (Oreochromis niloticus) obtained from the Teratai fishing pond, Sanur Bali. Vitamin E used was Ovagrow Vit E with a vitamin E content of 50%. The CRD method (completely randomized design) was used with four treatments and three replications. The doses of vitamin E that were mixed into the feed were 0, 100, 300, and 500 mg/kg of feed. The results showed that the administration of vitamin E mixed in the feed at different doses had a significant effect on the achievement of gonad maturity level, gonad somatic index (GSI), and Fecundity (P <0.05). Provision of vitamin E at a dose of 300 mg/kg of feed was the best dose for ripening tilapia gonads. The gonad maturity level developed up to maturity stage IV, the GSI value was (3.56 ± 0.46) and the fecundity value was (1379 ± 289).

Effect of Thiophenone Compound on Motility and Caseinase Production of Aeromonas hydrophila Ayu Ashari Margareth Sinaga; Pande Gde Sasmita Julyantotro; Dewa Ayu Angga Pebriani
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Motility and caseinase production are part of bacterial virulence factors which are regulated by a bacterial intercellular communication system, often called quorum sensing (QS). This study aims to determine the effect of the QS inhibitor compound thiophenone in reducing those virulence factors. This research was conducted at the Laboratory of Fisheries Science, Faculty of Marine Science and Fisheries, Udayana University, from December 2019 to March 2020. This study tested 3 different treatments with 3 repetitions for each treatment. Treatment A as control (without the addition of thiophenone), treatment B (addition of 5 ?M thiophenone), and C treatment (addition of 10 ?M thiophenone). The results showed that thiophenone compounds can inhibit the QS system of Aeromonas hydrophila. It can be seen from the significantly reduced (P<0.05) motility and caseinase enzyme activity of A. hydrophila compared to without addition of thiophenone compounds. The average diameter of the caseinase enzyme production produced in treatment A at 22 hours was 21.40±0.36 mm, in treatment B was 19.70±0.2 mm and in treatment, C was 17.87±0.05 mm. Whereas in motility, the resulting average diameter in treatment A at 22 hours was 6.57±0.61 mm, in treatment B was 5.67±0.35 mm and in treatment, C was 5.10±0.6 mm. These results indicate that the QS thiophenone inhibitor compound can reduce virulence factors, namely motility and caseinase production from pathogenic bacteria A. hydrophila. Treatment C can decrease virulence factors compared to treatment A and B.

Profile of Leachate and Sea Water in The Waste Processing Area Suwung, Denpasar, Bali Pande Kadek Ari Iswari; Ni Made Ernawati; I Wayan Restu
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

This study aims to determine the profile of leachate, and seawater in the Suwung waste processing area (TPA Suwung). The method used in this research was descriptive quantitative. The results showed a high profile of untreated leachate with a TSS value of 9.407 mg/L, pH with a value of 8.17, DO with a value of 0.063 mg/L, BOD with a value of 375.5 mg/L, and COD with a value of 5.776 mg/L. The treated leachate with a TSS value of 4,987 mg/L, pH with a value of 8.52, DO with a value of 0.063 mg/L, BOD with a value of 321.9 mg/L, and a COD value with a value of 3.069 mg/L. Meanwhile, the seawater profile was classified as good with parameter values of TSS with a value of 76 mg/L, DO 7.54 mg/L, pH 7.54, BOD with a value of 13.6 mg/L, COD with a value of 64 mg/L. The existence of TPA Suwung has a negative impact and influence on seawater in the area. Revitalization efforts are needed to carry out leachate water treatment so that the effluent quality can be improved for the quality of water around TPA Suwung.

Malassezia sp. Infection Prevalence in Dermatitis Dogs in Badung Area Putu Henrywaesa Sudipa; Ketut Tono Pasek Gelgel; Putu Devi Jayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Malasseziosis is a common fungal infection in dogs and it is secondary to the initial underlying dermatitis infection. These infections can worsen the prognosis of disease in dogs. The study was conducted on 26 dogs that were treated in several veterinary clinics in the Badung, Bali. This study aimed to determine the incidence rate of Malassezia sp. in dogs with dermatitis. Samples were collected using tape smear method from the skin lesion and then by microscopic examination. The results were tabulated and analyze descriptively. The results showed that 15 of the 26 samples of dogs tested positive were infected with Malassezia sp. (58%). Infection is more common in male (60%) and geriatric dogs (40%). Lesions were more common in the ear, limb, vaginal and inguinal region of infected dogs

Cover, Table of Content and Editorial Team ATBES Admint
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

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TABLE OF CONTENTS EFFECT OF THIOPHENONE COMPOUND ON MOTILITY AND CASEINASE PRODUCTION OF AEROMONAS HYDROPHILA Pages 40-44 Ayu Ashari Margareth Sinaga, Pande Gde Sasmita Julyantotro, and Dewa Ayu Angga Pebriani MALASSEZIA SP. INFECTION PREVALENCE IN DERMATITIS DOGS IN BADUNG AREA Pages 45-49 Putu Henrywaesa Sudipa, Ketut Tono Pasek Gelgel, and Putu Devi Jayanti EFFECT OF DIFFERENT STOCKING DENSITIES ON THE GROWTH AND SURVIVAL RATE OF TILAPIA (OREOCHROMIS NILOTICUS) SEEDS IN BATUR LAKE FLOATING NET CAGES Pages 50-56 Hikmah Nurazizah, I Wayan Arthana, and Gde Raka Anggara Kartika The Structure of Macrozoobenthos Community as a Bioindicator of Water Quality in Gilimanuk Bay, Jembrana Regency, Bali Pages 57-63 Yohana Christanti Ndale, I Wayan Restu, and Ni Putu Putri Wijayanti EFFECT OF GIVING DIFFERENT DOSES OF VITAMIN E IN FEED TO THE LEVEL OF GONAD MATURITY OF TILAPIA (OREOCHROMIS NILOTICUS) Pages 64-68 Gunawan Tarigan, I Wayan Arthana, and Dewa Ayu Angga Pebriani PROFILE OF LEACHATE AND SEA WATER IN THE WASTE PROCESSING AREA SUWUNG, DENPASAR, BALI Pages 69-72 Pande Kadek Ari Iswari, I Wayan Restu, and Ni Made Ernawati

Effect of Different Stocking Densities on the Growth and Survival Rate of Tilapia (Oreochromis niloticus) Seeds in Batur Lake Floating Net Cages Hikmah Nurazizah; I Wayan Arthana; Gde Raka Anggara Kartika
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Stocking density is an important factor in cultivation, it can save land use, and increase the efficiency of fish farming. The purpose of this research was to determine the different density information on tilapia seeds measuring 2-3 cm as an alternative to using tilapia (O. niloticus) seeds 7-9 cm in size so that they can be developed in Batur Lake. The research was conducted in January - March 2020 in the floating net cages in Trunyan Kintamani village, Bangli, Bali. The research used a completely randomized design method with three treatments and three repetitions. The Tilapia seeds used are 2-3 cm with different stocking densities, 100 ind/m3, 150 ind/m3, and 200 ind/m3. The parameters observed were SGR (Specific Growth Rate), absolute growth, SR (Survival Rate), FCR (Feed Conversion Ratio), and water quality including temperature, DO, pH, TDS. The results of this study indicated that stocking density did not have a significant effect on the growth and survival rate of tilapia seeds, because the temperature was too cold so that the tilapia seeds failed to adapt properly at the beginning of stocking and the physiological conditions of the fish were disturbed so that the fish experienced stress and went to died. Water quality parameters measured include temperature with a range value of 25.86-25.880C, pH with a range value of 9.08-9.13, DO (Dissolved oxygen) with a range value of 7.9-8 mg/L, and TDS (Dissolved solids) with a range value of 1040.25-1041.58 mg/L.

The Structure of Macrozoobenthos Community as a Bioindicator of Water Quality in Gilimanuk Bay, Jembrana Regency, Bali Yohana Christanti Ndale; I Wayan Restu; Ni Putu Putri Wijayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 2 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Gilimanuk Bay is a water area located in Melaya District, Jembrana Regency, West Bali Region. In this area, there are development and human activities that have an impact on the quality of the waters so that they interfere with the life of organisms such as macrozoobenthos. Macrozoobenthos can be the bioindicator that determining the condition in a water area. The decline of the macrozoobenthos community structure is an indicator of a disturbance in the ecosystem in these waters. The purpose of this research to know how community structure of macrozoobenthos and the condition of the water quality in Gilimanuk Bay. This research was conducted in June to July 2020. The research used the quantitative descriptive method, with 3 of the research stations. Based on the result of the research, it has found 45 species of macrozoobenthos that included from 5 classes, there are Gastropods, Bivalves, Crustaceans, Polychaeta and, Sipunculidea. The highest total abundance was at station 3, namely 534.33 ind/m2, station 1 is 522.00 ind/m2 and the lowest abundance is at station 2, namely 371.33 ind/m2. The diversity index obtained was classified as moderate, which ranges from 1.53-1.89, the uniformity index is classified as moderate, which ranges from 0.47-0.57, while the dominance index is low to moderate, which ranges from 0.29-0.44. Based on the macrozoobenthos community structure and the interrelation with water quality, Gilimanuk Bay is classified as moderately polluted waters.

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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