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Brigitta Laksmi Paramita
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Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Published by Universitas Atma Jaya Yogyakarta
ISSN : 25273221     EISSN : 2527323X     DOI : doi.org/10.24002/biota
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati merupakan jurnal ilmiah yang memuat hasil-hasil penelitian, kajian-kajian pustaka dan berita-berita terbaru tentang ilmu dan teknologi kehayatian (biologi, bioteknologi dan bidang ilmu yang terkait). Biota terbit pertama kali bulan Juli 1995 dengan ISSN 0853-8670. Biota terbit tiga nomor dalam satu tahun (Februari, Juni, dan Oktober).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,193 Documents
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Waktu Reproduksi Karang Lunak Sinularia flexibilis Quoy & Gaimard (Octocorallia: Alcyonacea) Di Pulau Barrang Lompo, Kepulauan Spermonde, Sulawesi Selatan Abdul Haris
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2706

Abstract

Sinularia flexibilis is a soft coral that has an economical value due to its farmacological substance. The aim of this research was to find out the spawning time and behaviour of Sinularia flexibilis by visual observation in its natural habitat and in hatchery. The result of this research revealed that the reproduction period of the Sinularia flexibilis occurred during May to September in each lunar phase. However, it was found that during a new moon phase, the reproduction activity had the highest percentage of colony for every lunar phase. Spawning behavior of the Sinularia flexibilis was that a bunch of eggs and the sperm were separately spawned from the mouth by fast contraction in a short period of time.
Keanekaragaman Jenis Gastropoda (Mollusca) yang Berasosiasi dengan Ekosistem Mangrove di Taman Nasional Ujung Kulon Nova Mujiono
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2707

Abstract

A field research was conducted in Ujung Kulon National Park (TNUK) to reveal the biodiversity of Gastropoda which live associated with mangrove ecosystem. As many as 793 specimens were collected and identified. These specimen consisted of 14 families, 27 genera and 59 species which could be classified into: Native molluscs (37 species, 62.71%), Facultative molluscs (5 species, 8.47%) and Visitor mollusks (17 species, 28.81%). Within Native molluscs, 19 (51.35%) from 37 species were confirmed as new records from TNUK since they had not been recorded before. One family of Facultative molluscs, the Onchidiidae (Onchidium chameleon, O. damelli dan O. patelloides) was confirmed as new record from mangrove of Java. Totally from 59 species found here, 33 species (55.95%) were confirmed as new records, the other 26 species had already been recorded by TNUK. Some interactions (predation, mating and aggregation) among individuals were also observed in the field.
Sistematik Filogenetik Isolat-isolat Kapang Indigenous Indonesia sebagai Entomopatogen Kutu Sisik (Lepidoshapes beckii Newman) Hama Tanaman Jeruk Suharjono Suharjono; Agung P.W. Marhendra; Anang Triwiratno; Susi Wuryantini; Lina Oktavia R
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2708

Abstract

Citrus fruits constitute a basic agricultural product in many countries. They are a source ofnational income, empowering labor market in rural zones and those surrounding urban areas,and in addition to being an important part of the diet. Insects are common problems to plantingof citrus. Purple Scale, Lepidosaphes beckii (Newman) is one of the destructive insect pests ofcitrus worldwide. The control of purple scale insects in citrus utilizes native natural enemiesincluding pathogens. Most known species of mould are pathogens of purple scale insect of citrus.The objective of this research was to study phylogenetic systematics of Indonesian indigenousmould isolates as pathogen on purple scale insect (Lepidoshapes beckii Newman) pest of citrusplants. Seven mould isolates derived from Purworejo, Brastagi, and Poncokusumo were showedpathogenic on purple scale insect. The fungal isolates were cultured on PDA. The DNA of fungalmaterial was isolated with Kit Prepman Ultra (Applied Biosystems). Nuclear ribosomal LargeSubunit 28S rDNA (LSU) was amplified using primers ITS1 and ITS4. Products of PCR werepurified and sequenced. Based on the 28S rDNA sequence, the result was showed that isolate ofPW ASG D4 was related to Gibberella moniliformis dx-12, PC ORG D4 was related to Gibberella sp.1893, PW ASG D2 was related to Gibberella moniliformis BZ070101, PW LB D2 was related toGibberella moniliformis 52, BRS D22 was related to Fusarium oxysporum DC-1-67, PWRJ I D4 wasrelated to Fusarium culmorum SQ070108, and BRS D23 was related to Aschersonia sp. Ag-11.
Tipe Habitat Kesukaan Rusa Timor (Rusa timorensis) di Hutan Wanagama I Danang Wahyu Purnomo; Djuwantoko Djuwantoko; Satyawan Pudyatmoko
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2709

Abstract

Wanagama I Forest (599.7 ha) is a research and education forest which is the habitat of Timor Deer (Rusa timorensis). The deer population has been breeding naturally. The habitat changes have affected to the deer in selecting the resources in its habitat and have caused the deer moving out from the forest to the more strategic area, i.e. agricultural and settlement. We suspected that the case happened because of the habitat quality degradation in the forest. The research was aimed to identify habitat types preferred by deer that were called Habitat Preference. Habitat preference was analyzed by habitat selection that was estimated using habitat-categorizing approaches (Alldredge, Thomas, and Mcdonald, 1998; Manly et al., 2002). Habitat selection was identified by chi-square test and the preference index was estimated by selection ratio index. The result of habitat-categorizing analysis showed that there was a habitat selection by the deer (chi-square test X2=15.23, α=0.05). Block 5 (selection standardized index, B=0.220), Block 17 (B=0.212), and Block 14 (B=0.149) were the habitat types which had high probability selected by the deer for their activities.
Keanekaragaman Jenis Ekhinodermata Di Perairan Minahasa Utara, Sulawesi Utara Eddy Yusron; Susetiono Susetiono
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2710

Abstract

Observation on echinoderms diversity was carried out at coastal waters of North Minahasa bay, North Sulawesi, from June to August 2008. Sampling was done by using a transect quadrant of 1 m x 1 m. The results showed that in both locations, 28 species of echinoderms represented 7 species of Holothuroidea, 9 species of Echinoidea, 6 species of Asteroidea and 6 species of Ophiuroidea had been found in the North Minahasa Bay, North Sulawesi. The Echinoidea were relatively common in the sea grass zone. On the basis of population density, Echinoidea was the dominant group and had the highest density. This research was aimed to find out the species composition, community structure, zonation, and spatial distribution of echinoderm fauna.
Pengaruh Lengas Nisbi dan Suhu terhadap Kerusakan Gaplek Akibat Aspergillus flavus Selama Penyimpanan H. A. Oramahi; Christanti Sumardiyono; Nursamsi Pusposendjojo; Haryadi Haryadi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2723

Abstract

A study on the spoilage of dried cassava by Aspergillus flavus was still limited so that such study is very important to do. This experiment was done to examine the effect of relative humidity (RH) and storage room temperature on the development of A. flavus and dried cassava spoilage during storage time. Based on the population of A. flavus, starch content, reduction sugar content, and water content of dried cassava, it was concluded that RH 65%, the temperature of 30 and 35oC had better storage condition for dried cassava because it resulted in the lowest population of A. flavus and the lowest deterioration of dried cassava.
Komposisi Jenis Kepiting Ocypodidae (Dekapoda: Brachyura) di Ekosistem Mangrove dan Estuari, TN Ujung Kulon Dewi Citra Murniati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2724

Abstract

Mangrove and estuary ecosystems are important components of the intertidal area which is the habitat of Ocypodid crabs. The study of Ocypodid crabs in Ujung Kulon National Park is still limited, while its habitat is decreasing. This study was conducted to explore the Ocypodid crabs (Brachyura: Ocypodidae) composition in mangrove and estuary ecosystems in Ujung Kulon National Park. Crabs species collection was carried out in Legon Cibariang, Panaitan Island and Cikawung, Ujung Kulon National Park. Four species of Ocypodid crabs, Ocypode ceratophthalma (Pallas, 1772), Uca annulipes (H. Milne Edwards, 1837), U. coarctata (H. Milne Edwards, 1852) and U. triangularis (A. Milne Edwards, 1873) were successfully collected from mangrove and estuary ecosystems. The species composition of Ocypodidae in Cikawung were more various than in Legon Cibariang.
Diversitas Suku Agamidae (Reptilia: Squamata) pada Berbagai Tipe Habitat di Kawasan Pertambangan Emas Martabe, Sumatera Utara: Dalam Tahap Konstruksi Awal Riyanto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2725

Abstract

A study of Agamid lizards diversity and their distribution surrounding Martabe Mining project Area, South Tapanuli, North Sumatera was conducted in five different habitat types. The data were gathered by opportunistic searching in each habitat type with two replications. Shannon-Wiener index was used to determine the diversity while the homogeneity was verified by Pielou index. The similarity of Agamid communities among habitat types was confirmed by Sorensen coefficient. As a result, 9 Agamid species were recorded with Draco melanopogon as the major component of Agamid community making up 49.1% of total individuals gathered. Highest diversity occurred in moderately disturbed forest, but the most homogeny took place in riparian lowland forest. The cluster analysis using Sorensen’s coefficient of agamid species distribution among habitat types distributed the habitats into three major groups, with the most similarity occurred between primary and riparian lowland forests (75%). The identification key of the species was made.
Analisis Matagenom Komunitas Bakteri Tempe dengan Teknik Terminal Restriction Fragment Length Polymorphism (T-RFLP) Tati Barus; Griselda Griselda; Antonius Suwanto; Tan Watumesa Agustina
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2726

Abstract

Bacteria have an important role in tempe fermentation in Indonesia, aside of Rhizopus oligosporus as the dominant microbe. In this study the molecular aspect of bacterial diversity in tempe were analyzed using a fingerprinting technique, Terminal-Restriction Fragment Length Polymorphism (T-RFLP). This study was aimed to examine the diversity of bacterial community during tempe making. Bacterial diversity analysis was conducted in the first hour and the thirteenth hour after the soybean soaked while the fresh tempe was analysed at one to two hours after the fermentation ended. T-RFLP can be used to describe the diversity of bacterial community during the fermentation of tempe. T-RFLP profiles revealed the presence of 24, 30 and 33 bacterial phylotypes in the first hour and the thirteenth hour after the soybean soaked as well as in fresh tempe samples. The phylotypes were dominated by unculturable bacteria group. Only several bacterial phylotypes were consistenly identified since the beginning to the end of fermentation, while most of them were only identified at certain phases along with the environmental changes (i.e: pH) that occured during the fermentation process. One of the consistently identified groups belongs to Bacillus genera.
Pengaruh Interaksi Genotipe dengan Lingkungan terhadap Kandungan Fe Biji Padi Suwarto Suwarto; Nasrullah Nasrullah; Taryono Taryono; Endang Sulistyaningsih
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2727

Abstract

To explore the effect of genotype, environment and genotype x environment interaction on Fe content in rice grain, Fe concentrations of 10 genotypes were analyzed across eight paddy field environments using the GGE-biplot method. Experiments were conducted from 2007 to 2008 using a randomized completely block design with three replications at each environment. Results indicated that environment (E), genotype (G) and genotype x environment interaction (GE) significantly gave effect on Fe rice concentration. Environment explained 74.43% of total (G + E + GE) variation, whereas G and GE captured 5.60% and 19.67%, respectively. The first two principal components (PC1 and PC2) were used to create a two-dimensional GGE-biplot and explained 70.40% and 15.36% of GGE sum of squares. Genotype Barumun was desirable in terms of its highest Fe rice concentration ability and stability. In Cilongok, wet season was the best representative of the overall environments and the most powerful to discriminate genotypes.

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