Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Advances in Tropical Biodiversity and Environmental Sciences

ATBES
Website

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

4 5 6 7 8

Seagrass (Enhalus acoroides) as an Heavy Metal Bioindicator on Biomonitoring Water Quality in Sanur Beach Bali Ni Putu Putri Wijayanti; I Nyoman Giri Putra
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 1 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

Abstract. Heavy metal contamination is a major threat for marine ecosystem that directly affecting the organisms’ life. Some of marine organisms have an ability to response the heavy metal contamination in water, and could be used as bio-indicator. One of them is seagrass that used in this study to evaluate the water quality in Sanur beach. This study was held in Sanur beach, Denpasar, from July-August 2018. Sampling location determined by purposive sampling method and generated 4 research stations. Sediments and seagrass leaves (Enhalus acoroides) was collected and analyzed in Analytical Laboratory Udayana University using ICPE-9000. Water quality parameters measured in situ (temperature and salinity) and in Medical Laboratory Bali Province (pH and DO). The results showed if the water quality in all research stations were in safety range based on Governor Regulation No. 16 of 2016 about marine water quality for tourism and recreation. The highest content of heavy metal (Pb) in sediment is 16.207 mg kg-1 that possessed by the 1st station, while the lowest is 14.318 mg kg-1 at the 3rd station. The highest Pb content in seagrass leaves at the 2nd station is 5.646 mg kg-1, and the lowest at the 1st station is 4.926 mg kg-1. The 3rd station sediment had the highest Cd content is 2.252 mg kg-1 and the 4th station had the lowest is 2.044 mg kg-1, while for leaves with the highest Cd content was at the 4th station is 0.552 mg kg-1 and the lowest at the 3rd station is 0.458 mg kg-1. The Cu content in sediment was highest at the 1st station is 11.533 mg kg-1 and the lowest at the 3rd station is 8.501 mg kg-1. For leaves’ Cu content, the highest amount of Cu is 3.699 mg kg-1 at the 4th station, while the lowest at the 2nd station with 2.570 mg kg-1.

Immunomodulatory and Antioxidant Activity of Green Grass Jelly Leaf Extract (Cyclea barbata Miers.) In Vitro Mustafid Rasyiid; Rendi Mahadi; Krisnanda Surya Dharma; Lindia Anggraini; Rahma Nurdiyanti; Tri Rini Nuringtyas
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 1 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

Green grass jelly (Cyclea barbata Miers.) is known for its benefit to human health especially in supporting body’s immune system and wellness. This research aimed to determine immunomodulatory and antioxidant activity of green grass jelly leaf extracts in vitro. Old leaves were collected as sample then dried and ground to powder. The extraction was done with sohxletation using three different solvents, chloroform, ethyl acetate, and ethanol. The immunomodulatory activity was evaluated by treating the crude extracts at concentrations of 50, 100, and 500 mg/mL on macrophages of rat in vitro. The treated macrophage was then challenged for their phagocytic activity to latex beads. The antioxidant activity was done using 1,1-diphenil-2-picrilhydrazil (DPPH) with spectrophotometry technique. All treatments were done with three replicates. Detection of the bioactive groups of the extracts was done by Thin Layer Chromatography (TLC). The results showed that ethyl acetate extract has the highest phagocytic activity followed with chloroform extract and ethanol extract, respectively. Optimum concentration was reached at 100 mg/mL of ethyl acetat extract. The ethyl acetate extract was also the extract with the highest antioxidant activity index 7.7 followed by both extracts of chloroform and ethanol with similar index value of 6.25 and 6.3, respectively. The ethyl acetate extract contained phenolics, flavonoids, tannins, and terpenoids.

Epilithic Diatom Abundance Study in the Batang Kuranji River in Padang City, West Sumatra Mida Yulia Murni
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

A study about abundant of epilithic diatom was conducted on 2017 in Kuranji River. The objective of this study was to clarify species and abundant of epilithic diatom in Batang Kuranji River. Samples were collected in 3 stations by purposive sampling and brushing method. The results showed that totally 82 species in 22 genera had been found. The total abundant of epilithic diatom was 15139,26 individual/cm2. The highest abundance of epilithic diatom was found in station I (Batu Busuak) and the lowest in station III (Sawah Liek). Synedra sp and Fragillaria sp were dominant group of diatoms which are found in almost all sites. Some physical and chemical water quality parameters were showed that Batang Kuranji River were polluted slightly by organic and inorganic materials.

Quality of Chaetoceros calcitrans Cultured with Different Concentrations of Potassium Nitrate (KNO3) Alfarisi Prafanda; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 1 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Addition of different fertilizer concentrations into cultivation media affects the cell density of microalgae. Potassium nitrate (KNO3), is one of the components in Guillard fertilizer composition commonly used for microalgae culture. This study aims to determine the quality of Chaetoceros calcitrans when cultured with different concentration of KNO3. This research was conducted from November 2019 to January 2020 at Balai Perikanan Budidaya Air Payau (BPBAP) Situbondo and Biosain Laboratory, Jember State Politeknik, East Java. This study consists of four treatments and three replicates. The object in this study was C. calcitrans culture with initial density 105 cells/ml. The main parameters observed were cell density, biomass, protein and amino acids contents and medium parameters such as temperature, pH, DO, salinity, nitrate and phosphate. There were four concentrations of KNO3 used in this study, namely control (75 g/l), treatment Group A (100 g/l), treatment B (125 g/l) and treatment C (150 g/l). The results showed that the cells density of C. calcitrans at control, treatment Group A, B and C were 110.4; 105.2; 108.3; and 100.8 (×104 cells/ml), respectively. This study indicated that different concentration of KNO3 affect the starting point of stationary phase, but One Way ANOVA test showed that those treatments had no significant effect (P?0,05) on the growth rate and dry biomass of C. calcitrans. Finally, we found that the protein content in addition of 75, 100, 125 and 150 g/l KNO3 were 9.748; 8.802; 6.812; and 3.776%, respectively.

Population Control of Viruses Insect Vectors in Chili with Plastic Mulch K.A. Yuliadhi; T.A. Phabiola; K. Siadi
Advances in Tropical Biodiversity and Environmental Sciences Vol 1 No 1 (2017): ATBES
Publisher : Institute for Research and Community Services Udayana University

The incidence of diseases caused by pathogenic viruses in chili is still a major problem in reducing the production of chili in Indonesia. Most agricultural crops are hosts for one or more types of plant viruses, so the viru s continued to be a problem in the tropics. Virus is passive, requires intermediaries vector to be transmitted to other plants. The goal of this research was to develop control strategies for aphids that act as a viral vector and pest chili plants using plastic mulch. Control design that was developed in this study based on the habits of local farmers, using plastic mulch with two colors, black and silver. Mulching is done to dispel the arrival aphids into the chili crop, at the same time preventing the emergence of weeds that act as alternative hosts of the virus. The use of silver plastic mulch to control vector viral populations was better compared to black plastic mulch during chili planting. The use of silver plastic mulch can improve yields of chili crops.Keywords: Aphid, whiteflies, Chili chili, virus

Lung Histopathology of Laying Hens Infected by Colibacillosis in the Animal Cages Experiments of the Disease Investigation Center 6, Denpasar, Bali Kadek Ayu Trisna Yanti; Iriani Setyawati; Ni Putu Adriani Astiti
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 2 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

This study aimed to determine the lungs histopathology of laying hens (Gallus gallus domesticus) at the Animal Cage Experiments in the Disease Investigation Center 6, Directorate General of Live Stock (DIC-6 DGLS), Denpasar, Bali, which died from colibacillosis infection. Sample of lungs were cut transversely then put into 10% of Neutral Buffer Formalin, then processed histologically by paraffin method and stained with Hematoxylin-Eosin. Observation under microscope (magnification 100x and 400x) was done for histopathological examination. Laying hens died from colibacillosis infection showed that their lungs were infected by colibacillosis, and there were found 62.50% of necrosis, 75% of inflammatory cells infiltration and 80% of hemorrhage in the lungs.

Histology of Rat Pancreas Treated with Calliandra calothyrsus Leaf in the Diets during Pregnancy and Lactation Iriani Setyawati
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 1 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

For cattle, red calliandra (Calliandra calothyrsus) is a good protein source of forage but the condensed tannin content is the highest compared to other legume plants. Tannin can reduce the activity of digestive enzymes and protein digestibility, which can lead to pancreatic hypertrophy and hyperplasia. This study aimed to determine the pancreatic histology of pregnant rats treated with C.calothyrsus leaf flour during pregnancy and lactation period. This study used a completely randomized design with 24 pregnant female rats which were divided into four groups i.e. control and treatments of 10, 17.5 and 25% of C.calothyrsus leaf flour in the diets. The treatment started from the first day of pregnancy until the young rats were weaned at the age of 21 days. Pancreatic histological structure of the mother showed an increase lack of normal tissue density and an increase connective tissues in the pancreas descriptively, especially at the highest level of C.calothyrsus leaf flour (25%) in the diets.

The Rare Plants in The Alas Kedaton Tourism Forest, Tabanan, Bali Nyoman Wijana; I Made Oka Riawan; Sanusi Mulyadiharja
Advances in Tropical Biodiversity and Environmental Sciences Vol 5 No 1 (2021): ATBES
Publisher : Institute for Research and Community Services Udayana University

Forests are a source of foreign exchange that has been exploited on a large scale for timber. This exploitation causes a rapid reduction in forest area. Until now, the destruction of the forest environment is still happening, both by illegal logging and illegal mining. This study aims to determine the number of rare plant species in Alas Kedaton Tourism Forest, Tabanan, Bali, Indonesia; and the factors causing the rarity of these plant species. The population in this research is the plant species in Alas Kedaton Tourism Forest. Meanwhile, the social population is all people in the Alas Kedaton Tourism Forest area. The sampling method for plant species is the quadratic method was used to investigate the diversity and the number of rare plants. While for the social sampling was conducted by interviewing with purposive sampling method to the local community around the Alas Kedaton areas. Determination of endangered plant species was conducted by studying of available documents, in-depth interviewing, and seeking information from various existent sources. The collected data analyzed descriptively. The results of this study indicated there are 48 species of plants with 26 families, which are generally found in Alas Kedaton Tourism Forest. Of this number, 42 (87.5%) plant species are included in the rare category; (2) of the 42 species of rare plants in the Alas Kedaton Tourism Forest, there are 8 (19.04%) plant species that are included in the National rare category, 20 (47.62%) rare plant species in Bali, 10 ( 23.81%) rare plant species in Tabanan Regency, and 4 (9.52%) species included in the rare category at the District level (especially Marga District); and (3) factors causing the scarcity of plant species in Alas Kedaton Tourism Forest are (a) past environmental degradation, (b) reproductive problems of rare plants, (c) human intervention, (4) disturbance by animals, especially long tailed monkeys (Macaca fascicularis) and bats (Pteropus vampyrus).

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.

Page 6 of 10 | Total Record : 100

4 5 6 7 8

Filter by Year

2017 2023

Filter By Issues

All Issue Vol 7 No 1 (2023): ATBES Vol 6 No 3 (2022): ATBES Vol 6 No 2 (2022): ATBES Vol 6 No 1 (2022): ATBES Vol 5 No 3 (2021): ATBES Vol 5 No 2 (2021): ATBES Vol 5 No 1 (2021): ATBES Vol 4 No 2 (2020): ATBES Vol 4 No 1 (2020): ATBES Vol 3 No 2 (2019): ATBES Vol 3 No 1 (2019): ATBES Vol 2 No 2 (2018): ATBES Vol 2 No 1 (2018): ATBES Vol 1 No 2 (2017): ATBES Vol 1 No 1 (2017): ATBES More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
I Made Merdana

Contact Email
-

Phone
+6281236118996

Journal Mail Official
atbes@unud.ac.id

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

Location
Kota denpasar,

Bali

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name I Made Merdana

Contact Email -

Phone +6281236118996

Journal Mail Official atbes@unud.ac.id

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

Location Kota denpasar, Bali INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
I Made Merdana

Contact Email
-

Phone
+6281236118996

Journal Mail Official
atbes@unud.ac.id

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

Location
Kota denpasar,

Bali

INDONESIA