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INDONESIA
Jurnal Biodjati
Published by Universitas Islam Negeri Sunan Gunung Djati Bandung
ISSN : 25481606     EISSN : 25414208     DOI : 10.15575/biodjati
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences
Arjuna Subject : -
Articles 15 Documents
 1   2 
Search results for , issue "Vol 7, No 2 (2022): November" : 15 Documents clear
The Epilithic Diatom Community as a Bioindicator of water quality Brangkal Subwatershed in the Mojokerto Area Bayu Agung Prahardika; Widi Muhammad Lutsfi Dwi Styawan
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.20439

Abstract

Diatoms are widely used as bioindicators of water quality because of their short life cycle and sensitivity to changes of environmental conditions in waters.  One type of diatom that is used as a bioindicator is an epilithic diatom. Epilithic diatoms are one of the diatom microalgae communities attached to rock, so they are difficult to be carried away by currents. This study aimed to determine the type, composition, abundance, diversity, and dominance of epilithic diatoms found in the waters of the Brangkal subwatershed, and to determine the quality of water in the Brangkal subwatershed based on the epilithic diatom tropic index. Epilithic diatom samples were taken from 4 stations in the Brangkal subwatershed, Mojokerto Regency at the beginning of the dry season (July-August). The analysis carried out includes abundance, diversity index, dominance index, and Diatom Trophic Index (TDI). Based on the results of the study, 17 genera of epilithic diatoms were found, with the highest abundance of epilithic diatoms, including Navicula, Cocconeis, Nitszchia, and Gomphonema. The diversity index of all stations was in the medium category, with a value between 1.206 to 1.882. The lowest dominance index at station 1 was 0.167 and the highest was at station 4 with 0.373. In addition, the observed water quality is based on the Diatom Trophic Index (TDI), stations 1 to 3 are in a good category, and stations 4 are in a bad category. 
Association Analysis of Seagrass Coverage and Human Activities in Nusa Lembongan Suko Wardono; Elland Yupa Sobhytta; I Gusti Ngurah Agung Dhananjaya; Rodo Lasniroha; Yuniarti Karina Pumpun; Mochammad Miftakhul Mashuda; Dewa Gde Tri Bodhi Saputra; Permana Yudiarso
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.20307

Abstract

Nusa Lembongan has high marine biodiversity, including seagrass. Seagrass is a plant that lives submerged in a marine or estuary water that functions as a nursery ground, trapping sediment, and beach protector, so it is important to know the condition of seagrass coverage, especially in Nusa Lembongan for managing the Nusa Penida Marine Protected Area. This study aimed to understand the condition of seagrass coverage and the factors influencing the existence of its ecosystem in Nusa Lembongan. According to reslut in two stations, it was found that six of the twelve types of seagrasses in Indonesia, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, Cymodocea rotundata, Halodule pinifolia, and Halophila ovalis. From the two stations (LMB01 and LMB02), the total seagrass coverage was 38.10±30.98% or the medium category. The seagrass communities in the station areas were generally formed by 3 types of seagrasses; Thalassia hemprichii, Cymodocea serrulata, and Cymodocea rotundata. LMB02 has higher seagrass coverage than LMB01. The seagrass coverage is inversely proportional to the intensity of human activity.
Spawning and Reproductive Potential of Blue Swimming Crab (Portunus pelagicus) at Spermonde Archipelago, Indonesia Muh Saleh Nurdin; Amanda Pricella Putri; Dewi Yanuarita Satari; Riris Yuli Valentine; Fauziah Azmi; Teuku Fadlon Haser
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.19893

Abstract

The problem in the management of blue swimming crab (BSC) fisheries is a decrease in stock that overlaps with an increase in fishing activities. This study aimed to analyze the ratio of spawning potential (SPR), reproductive potential, and reproductive productivity of BSCs taken from the Spermonde Islands. Spawning potential was analyzed using SPR, while reproductive potential analysis used the relative proportion of data between female, berried female and the average fecundity of each class size. The results showed that the BSC in Spermonde were growth overfishing and recruitment overfishing. The SPR of the BSC was estimated to be 7%, below the biological reference point. The highest reproductive potential index of berried females occurred in the group with a carapace width of 111-120 mm which contributed 36.84% of the total egg production. The value of reproductive productivity was 1.35 indicating a productive population. Current legislation allows the capture of BSCs with carapace sizes larger than 100 mm. Based on the data of this study, this size limit has the potential to eliminate 65.92% of the total egg production in the Spermonde Islands. To ensure the sustainability of BSCs in the Spermonde Islands, it is necessary to limit size by capturing BSCs >120 mm to protect the berried female and increase total egg production.
Allopurinol Induction on Histopathological Structure of the Liver in Male Mice (Mus musculus) Dian Fita Lestari; Fatimatuzzahra Fatimatuzzahra; Agnes Petra Sianipar; Shahnaz Shabrina Wulansari
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.18616

Abstract

Allopurinol is used to reduce total uric acid levels in the body into oxypurinol which can inhibit xanthine oxidase. Allopurinol inhibits the precursors of uric acid formation, xanthine, and hypoxanthine. However, consumption of the drugs can cause side effects on the liver. The aim of the research was to determine the effect of allopurinol induction on the liver histopathology of male mice (Mus musculus) DDY strain. The method used in this research was an experimental design used post-test only that was divided into 4 groups of 4 mice per group. The control group (P0) was given 0.5% Na-CMC, and groups I, II, and III (P1, P2, and P3) were induced by allopurinol at 10 mg/kg BW, 20 mg/kg BW, and 30 mg/kg BW for 14 days. Allopurinol induction was performed by oral gavage. The results of the research showed that treatment with allopurinol caused changes in the mice’s body weight, liver index, liver morphology, and histological structure of the liver tissue, including necrosis, steatosis, leukocyte infiltration, binuclear hepatocytes, hepatocyte swelling, congestion, sinusoid dilatation, and hemorrhage. The level of liver damage increased in line with the dose used. This research indicated that the higher the allopurinol level, the higher the level of alteration in the liver section structure. Long-term use of allopurinol can cause damage to the structure of mice liver (liver toxicity). 
Feeding Behavior and Preferences of Hemiplecta humphreysiana and Lissachatina fulica (Gastropoda) to Support Heliciculture in Indonesia Jessima Pratiwi; Fuji Anandi; Pamungkas Rizki Ferdian; Tri Hadi Handayani; Raden Lia Rahadian Amalia; Narti Fitriana; Ayu Savitri Nurinsiyah
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.19725

Abstract

The trend of Heliciculture for human consumption, animal feed, medicine, and neutricosmeceutical is rising globally. To gain a better knowledge on the Heliciculture of Indonesian land snails, we studied the daily activity with a focus on feeding behavior and the feed preference of two land snail species Hemiplecta humphreysiana (HH) and Lissachatina fulica (LF). The two species were selected because of their abundancein nature, as well as to compare behavior and preference between native (HH) and invasive (LF) species. Three days of daily activity observation was conducted by using a scan animal sampling method with 5 minutes intervals towards three individuals of HH and LF. The experiment on feeding preference was conducted towards ten individuals per species in 28 days of observation (14 days each for vegetables and fruits). Each individual was placed in different rearing boxes. A multiple-choice test method was applied and consisted of two treatments i.e. vegetable treatment (pakcoy, chicory, lettuce, cabbage) and fruit treatments (mango, cucumber, melon, papaya). The nutritional value from the observed feed was also analyzed. Based on the total of 51,840 minutes of observation records, both species were generally active from 21.00-03.00. HH was more active in moving when given vegetable treatment. The species preferred to feed on cucumber, melon, lettuce, and pakcoy. LF was more active in moving and feeding when treated with fruits. The species is more adaptive when given new feed and likes all four fruits, but preferred lettuce in the vegetable treatment. Both species prefer to feed with relatively high protein, high fiber, and moderate total carbohydrate content. Providing the right feed and at the right time can support the effectiveness of Heliciculture.

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