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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
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Search results for , issue "Vol 5, No 1 (2020): May" : 15 Documents clear
Distribution of Periphyton in the Upstream Section of Citarum River, West Java, Indonesia Isma Noviana; Tri Dewi Kusuma Ningrum Pribadi; Keukeu Kaniawati Rosada
Jurnal Biodjati Vol 5, No 1 (2020): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i1.7717

Abstract

Periphyton indeed plays an undeniably vital role as primary producers in the food web within aquatic ecosystems such as rivers. The existence of periphyton will affect the populations of the aquatic organisms at higher trophic level, thus it is interesting to be explored, especially in big rivers like Citarum. This study aimed to explore the distribution of periphyton, including its types and abundance at several stations in the upstream part of Citarum River based on the land use in the riverbanks, in the dry season of 2018. Samples were taken at nine stations, namely Gunung Wayang Springs, Outlet Cisanti at the valley of Mount Wayang, and the connecting tributaries as follows: Cihejo, Cibuni, Cirasea, Cikaro, Cisangkuy, Cikapundung, and Ciwidey. Samples of periphyton were taken from the substrate of stone, wood, plastic, and macrophytes at three sampling points of each station. Periphyton samples were then scraped off from the surface of the substrate, where the deposit would then be filtered using plankton net No.20, preserved with Lugol 1% and subsequently identified. The results showed there were 83 species from 58 genera of both phytoperiphyton and zooperiphyton, classified as periphyton found on the sites. The total abundance of phytoperiphyton ranged between 2.3 x 104 ind/m2 and 1.3 x 108 ind/m2 where the total abundance of zooperiphyton covered from 4.7 x 102 ind/m2 to 3.7 x 105 ind/m2. The highest and the lowest numbers of total abundance of periphyton were shown at stations of Gunung Wayang Spring and Cirasea tributary, respectively. 
Effectiveness of Modified Traps for Protection Against Fruit Flies on Mango Agus Susanto; Sudarjat Sudarjat; Endah Yulia; Agus Dana Permana; Aries Gunawan; Dwi Harya Yudistira
Jurnal Biodjati Vol 5, No 1 (2020): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i1.7926

Abstract

Mango is one of the primary fruit export commodities in Indonesia. The productivity of mango can be increased by controlling the pest population, including fruit flies Bactrocera spp. Various efforts to control the population of fruit flies have been carried out, either by implementing traditional methods or by using synthetic pesticides. However, synthetic pesticides can cause pollution, and therefore we need to control the fruit flies’ population by using the most effective fruit fly trap mode. The study was conducted in the mango yield (monoculture) of Department of Agriculture in Majalengka. The traps in this study were modified Steiner traps with funnels, modified Steiner traps without funnels, bottle traps with funnels, bottle traps without funnels, and modified gypsy moth traps. Each trap was fed with 0.2 ml of Methyl eugenol dripped on a cotton roll and hung in the trap. The results showed that the number of fruit flies caught in each trap every week is significantly different. The highest number of fruit flies caught in each trap every week was achieved by bottle traps without funnels that caught 135 flies, while the lowest number of fruit flies caught was recorded by the gypsy moth traps with 16 flies. The transparent color of the bottles and a large number of holes effectively lured the fruit flies into the bottle traps without funnels.
Bamboos Diversity in Banggai Kepulauan, Central Sulawesi, Indonesia I Putu Gede P. Damayanto; Kusuma Rahmawati
Jurnal Biodjati Vol 5, No 1 (2020): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i1.6230

Abstract

A bamboo inventory for Banggai Kepulauan has never been done. Knowledge of the islands’ floristic diversity is poor. This study explored bamboo diversity in Banggai Kepulauan, Central Sulawesi, Indonesia. We conducted fieldwork from June – July 2019 on the islands of Peleng and Bakalan. Bamboo specimens were collected and deposited in Herbarium Bogoriense. We describe these specimens here. We found eight species: Bambusa tuldoides Munro, B. vulgaris Schrad. ex Wendl., Dendrocalamus asper (Schult.f.) Backer ex Heyne, Gigantochloa atter (Hassk.) Kurz, Neololeba atra (Lindl.) Widjaja, Schizostachyum brachycladum (Kurz ex Munro) Kurz, S. lima (Blanco) Merr., and Thyrsostachys siamensis Gamble. Here we record information on morphology, habitat and distribution alongside photographs and an identification key to the bamboo species of Banggai Kepulauan.
Studies on Fern of Lesser Sunda Islands I: Checklist of the Genus Adiantum (Pteridaceae) Wenni Setyo Lestari; Bayu Adjie
Jurnal Biodjati Vol 5, No 1 (2020): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i1.6365

Abstract

Adiantum or maidenhair fern is one of the largest genera in Pteridaceae. We survey their species diversity in Lesser Sunda Islands, Indonesia through the living collection and herbarium examination. Seventeen species of Adiantum were recorded. including five species that considered as introduced and naturalized species. One species that grows naturally, Adiantum silvaticum, were previously known as endemic to Australia. However, this study revealed the new distribution of this species on Sumba and Flores.
Microplastics in Pelagic and Demersal Fishes of Pantai Baron, Yogyakarta, Indonesia Nurul Suwartiningsih; Indri Setyowati; Resa Astuti
Jurnal Biodjati Vol 5, No 1 (2020): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i1.7768

Abstract

Yogyakarta is the second-largest producer of plastic waste in Indonesia. Plastic waste in the waters can be degraded into microplastics that can enter the body of a fish. This study aimed to determine the presence of microplastics in the digestive tract of several species of fish in Pantai Baron, Yogyakarta, Indonesia. This research was an exploratory research conducted in April-September 2019 at Pantai Baron, Yogyakarta. Two species of each pelagic and demersal fish samples were taken by buying fish caught by fishermen. The digestive tract of fish was extracted with 10% KOH, filtered, then visual identification. Microplastic types were estimated by FT-IR spectrometry. The amount of microplastic of all fishes was done by Kruskal-Wallis test while the number of microplastics of the two categories of fish was compared with the Mann-Whitney test. A correlation analysis was carried out between the length of the fish, the weight of the digestive tract, and the number of microplastics found. Microplastic shape, color, size, and type data were analyzed descriptively. A total of 78 of the 80 (97.50%) fish from four species studied contained microplastics with a total number as many as 3,651 (mean 45.60 ± 44.31 microplastic/individual). About 100% of pelagic fish samples contained microplastics, while only 95% of demersal fish samples contained microplastics. Mann-Whitney test results showed the number of microplastic/ individual was significantly different between pelagic and demersal fish (p <0.05). The most dominant shape of microplastic was fiber (53.14%), film (36.97%) and fragments (9.89%). The type of polymers detected was polyamide. The results showed that pelagic fish swallowed more microplastics than demersal fish did because of the microplastic nature that is lightweight and floats. Microplastic characteristic data can be used to estimate the main source of microplastic pollution in Pantai Baron so it can be managed appropriately.

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