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All Journal Advances in Tropical Biodiversity and Environmental Sciences
Iriani Setyawati
Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other

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Relationship Between Length and Weight and Habitat Conditions of Several Fish Species in Tondano Lake, Minahasa, North Sulawesi Rosenta Sipayung; Helen Joan Lawalata; Iriani Setyawati; Livana Dethris Rawung; Rievo Handry Djarang
Advances in Tropical Biodiversity and Environmental Sciences Vol. 7 No. 3 (2023): October 2023: Pages 87-124
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.2023.v07.i03.p01

Abstract

The snake-head gudgeon or payangka fish (Ophieleotris aporos), tilapia fish or mujair (Oreochromis mossambicus), and marble goby or betutu fish (Oxyeleotris marmorata) are economically important fish in Lake Tondano. However, numerous community activities can disrupt aquatic biodiversity, declining Lake Tondano environmental conditions, and other factors. This study aimed to determine the relationship between length and weight and the habitat conditions of Ophieleotris aporos, Oreochromis mossambicus, and Oxyeleotris marmorata. The method used in this study was purposive sampling with research stations located at Remboken (station 1), Kakas (station 2), and Tondano Estuary (station 3). Sampling was carried out 5 times in every 10 days. The weight and length of the fishes caught in Lake Tondano were 2-60 g and 1-8 cm (Ophieleotris aporos); 9-180 g and 6-25.5 cm (Oreochromis mossambicus); and 16-30 g and 2.6-26.5 cm (Oxyeletotris marmorata), all of them have an allometric growth pattern. Oreochromis mossambicus is the most commonly caught fish in all research stations. The research station with the best level of water fertility is Remboken Station. The habitat characteristic of Lake Tondano was 25-290C of water temperature; brightness of 1.34-2.66 m; depth of 4.23-11.8 m; pH of 6.7-7.8; and dissolved oxygen of 2.27-6.31 mg/L, which still supports the well-being of the fish.
Insect Biodiversity in Mangrove Area of Tatengesan Village, Pusomaen District in Southeast Minahasa, North Sulawesi Feby Febrianty Toding Rante; Yermia Semuel Mokosuli; Iriani Setyawati; Ferny Margo Tumbel; Helen Joan Lawalata
Advances in Tropical Biodiversity and Environmental Sciences Vol. 7 No. 2 (2023): June 2023: Pages 40-86
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.2023.v07.i02.p04

Abstract

The existence of insects cannot be separated from the condition of their habitat. The mangrove area of ​​Tatengesan Village is one of the ecotourism site in Minahasa, North Sulawesi, that can support the survival of insects. This study aimed to determine the distribution and diversity of insects and the factors that influence the insect diversity in the mangrove area. The type of research used is descriptive quantitative research by conducting data collection activities, analyzing data and interpreting data with the aim of making a description of the events that occurred. The animals were exploratory collected by using insect nets (sweep net), beating cloth (beating), and bare hands (hand collecting). The results showed that there were 1225 individual insects consisting of 14 insect species, which were divided into 14 genera, 11 families and 6 orders of insects. The insect diversity index value was 0.27 which was classified as low. The dominance index value was 0.90 which was classified as high. The evenness index value was 0.10 which was classified as low.
The Effect of Cocopeat Addition in Plant Media on The Quality and Quantity of Papaya Seeds (Carica papaya L.var.calina) Arrijani Arrijani; Iriani Setyawati
Advances in Tropical Biodiversity and Environmental Sciences Vol. 7 No. 2 (2023): June 2023: Pages 40-86
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.2023.v07.i02.p06

Abstract

Papaya (Carica papaya L.) is one of the agricultural commodities that is widely cultivated by farmers in almost all parts of Indonesia. This plant is widely cultivated because varied consumption of papaya by the community makes the demand for fresh papaya fruit in the market always increase. Therefore, the cultivation of this plant is very important to be applied properly. Cocopeat is a powder which is a waste of coconut coir processing. Our previous research has shown that cocopeat is an organic material that has a positive role in the growth of patchouli seedlings. This study aimed to examine how the effect of the addition of cocopeat on the quality and quantity of growth of papaya seedlings (Carica papaya L.var.calina) on experimental land within the Universitas Negeri Manado (Unima) campus in Tondano. Experimental research was carried out with one factor, the concentration of cocopeat, with 5 levels 10, 20, 30, 40 and 50%. The control used was an organic media compounded by the analysis without using cocopeat. Each treatment and control was repeated 30 times so that the number of experimental units was 180 experimental units. Randomization was carried out by placing 10 rows and 18 columns at the Unima Patchouli Nursery Installation. The quantity parameter is the number of days the seeds germinated and the number of seeds that were successfully germinated in each treatment and control. Quality parameters include seedling height at the age of 2 months after germination (first germination); number of leaves, leaf size, wet weight and dry weight at 2 months of age. Based on the results, it can be concluded that the use of organic media with the addition of cocopeat at a concentration of 10-50% had a significant effect on leaf number, leaf size, plant height, stem diameter, wet weight, and dry weight of papaya plants in the early growth period. The addition of cocopeat concentration in the growing media will have an increasing effect on the observed parameters. Especially for the parameter of the number of days of germination after planting did not show a significant difference between all treatments.
Identification of Bacteria Associated in the Small Intestine of White-Tailed Forest Rat (Maxomys hellwandii) in South Minahasa Regency, North Sulawesi Megawati Meylin Weken; Revolson Alexius Mege; Helen Joan Lawalata; Yermia Semuel Mokosuli; Iriani Setyawati
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.p01

Abstract

Sulawesi Island in the Wallaceae line area has diverse endemic animals, including the white-tailed forest rats. White-tailed forest rat (Maxomys hellwandii) is one of the endemic animals in North Sulawesi, so this study aimed to determine the type of bacterial genus in the small intestine of Maxomys hellwandii. This research used a laboratory-based qualitative descriptive method using a pour plate isolation method and bacterial identification based on morphological, and physiological characters with biochemical tests. The small intestines of Maxomys hellwandii taken from the South Minahasa forest area, North Sulawesi were used as samples of this research. The results of the study obtained 22 isolates of bacteria that were successfully isolated and have been identified based on morphological characteristics, and physiology with biochemical tests based on the book Bergey's Manual of Systematic Bacteriology suspected 14 isolates as genus Bacillus and 8 isolates as genus Lactobacillus.
The Effect of Composites Containing Daluga on Blood Glucose Levels of White Rats (Rattus norvegicus) Esrah Anna Adeleid Agimat; Livana Dethris Rawung; Emma Mauren Moko; Iriani Setyawati; Helen Joan Lawalata; Dino Rahardiyan
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.p02

Abstract

Blood glucose is a term that refers to the glucose level in the blood. The food type and physiological functions of the body can increase blood glucose. The right food can maintain stable blood sugar. One food source that can maintain stable blood sugar is tubers. One of them is daluga tubers which have a low glycemic index value. This study aims to determine the effect of giving composites made from daluga tubers for 42 days on the blood glucose levels of white rats (Rattus norvegicus). This study used a completely randomized experimental design with nine treatments and three replications. An experimental animal was given 30 g of food each day for 42 days based on the group of treatments. The drinking water was given ad libitum. Blood glucose was measured on days 21 and 42. The results showed that providing daluga-based composite feed to mice affected blood glucose levels (p<0.05). The feeding treatment was 100% composite 3 consisting of 30% daluga flour, 40% rice flour, and 30% corn flour, a daluga-based food can potentially be a food ingredient that can maintain stable blood glucose levels. So it can be concluded that composite 3 could be safe to consume by the diabetes patient.
Identification of Bacteria Isolated from Sea Urchin (Diadema setosum) Gonads Inhibiting Pseudomonas fluorescens and Staphylococcus aureus Growth Andini Maurent Dwiyanti; Helen Joan Lawalata; Iriani Setyawati; Anita Constanci Christine Tengker; Nonny Manampiring
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 2 (2025): June 2025
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.i02.p05

Abstract

Sea urchins are organisms that have antibacterial, antitumor, and anticancer abilities. The gonads can be used as a food source because they store 28 kinds of amino acids, vitamin B complex. This research aims to determine the type of bacteria from the gonads of sea urchins (Diadema setosum) which have inhibitory power against the growth of Pseudomonas fluorescens and Staphylococcus aureus bacteria. This research used an exploratory method which was analyzed descriptively, using stages in which sea urchin samples were taken and antibacterial tests against Pseudomonas fluorescens and Staphylococcus aureus from sea urchin gonads using the spread method. The media used for the process of isolating bacteria from the gonads of the sea urchin Diadema setosum is Nutrient Agar (NA) media. Isolate colonies that grew after incubation for 24 hours were separated based on differences in colony morphology. Morphological characterization of bacterial cells begins with gram staining. The diameter of the inhibition zone in the test bacteria shows different shapes. The research obtained 8 bacterial isolates, namely isolates B1-B8 which were gram-negative. The eight bacterial isolates have the potential as antibacterials against the test bacteria P. fluorescens and S. aureus. Isolates B1, B2, B3, B7 are similar to the genus Proteus, while isolates B4, B5, B6, and B8 are similar to the genus Citrobacter. The diameter of the largest inhibition zone in the P.fluorescens test bacteria, namely isolate B1, was 9.03 mm. Meanwhile, the smallest diameter for isolate B7 was 6.97 mm. In the S.aureus test bacteria, the largest diameter in isolate B1 was 11.09 mm. Meanwhile, the smallest diameter for isolate B4 was 8.57 mm.
Co-Authors Andini Maurent Dwiyanti Anita Constanci Christine Tengker Arrijani - Dino Rahardiyan Emma M Moko Esrah Anna Adeleid Agimat Feby Febrianty Toding Rante Helen Joan Lawalata Livana Dethris Rawung Megawati Meylin Weken Mokosuli Yermia Samuel Nonny Manampiring Revolson Mege Rievo Handry Djarang Rosenta Sipayung