cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. banyumas,
Jawa tengah
INDONESIA
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
ISSN : 08531629     EISSN : 08531629     DOI : -
Majalah Ilmiah Biologi Biosfera : A Scientific Journal merupakan peer reviewed jurnal yang diterbitkan oleh Fakultas Biologi Universitas Jenderal Soedirman. Media ini mewadahi hasil-hasil penelitian di bidang biologi tropika yang terbit tiga kali setahun (Januari, Mei, September).
Arjuna Subject : -
Articles 8 Documents
Search results for , issue " Vol 32, No 3 (2015)" : 8 Documents clear
Distribusi Syzygium cumini (L) Skeels di Aceh Besar Rosannah, Afridah Afridah; Pasaribu, Nursahara; Hannum, Saleha
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.336

Abstract

The jamblang distribution has been studied in the southern part of  Aceh Besara, which is in the South of Jhanto district, Northern Krueng Raya, Southern Masjid Raya and Ujung Pancu district. The aims ofthis study was to determine the distribution area of jamblang based on rainfall, soil type, and lands cover . The data were collectedby observation. Distribution data are presented in the  form of map using ArcView 3.3 Software. The results of the analysis showed that the common jamblang was distributedin the rainfall region of 1500-2500 mm/year in dryland farming and the chromic luvisols, humic acricols, dystric fluvisols, dan rendzinas.
Stok Rumput Laut Alami di Perairan Teluk Prigi Trenggalek Jawa-Timur Kadi, Achmad
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.341

Abstract

Wild seaweed is natural source in term of seed supply on aquaculture activity. In recent years, seaweed is the important aquaculture comodity from Indonesian provinces.  Observation on wild seaweed in Prigi Bay, conducted in may 2011. The aim of the observation was to find out the condition and to measure the density of seaweed in Prigi Bay-Trenggalek East Java waters. Observation was carried out through survey method. Five observation stations were made the distance within the station was 1000 m parallel  with the beach line, then divided in 100 m to become 10 applying points on each stations. Quadrat transect in located perpendicular from the beach line to slope area, 1x1m² frame placed on each 10 meter by Saito and Watanabe. Species biodiversity, density and dominancy were measure from raw data obtained and using the computing formula according Michael, Kusmana, Soerianegara and Indrawan. Three species were found: Chlorophytaceae and Phaeophytaceae. The total of wild seaweeds in density of observation site was 239,53 g/m² and Padina australis has the highest density among other ie 82,01 g/m² and dominant value of the species was 30,23 g/m².  Seaweed which have economic value in observation site was Caulerpa, Halimeda, Padina and Sargassum.
Keragaman dan Produktivitas Hijauan Pakan Indigenous pada Berbagai Tingkat Kerapatan Vegetasi di Pegunungan Kapur Gombong Selatan Sarwanto, Doso; Tuswati, Sari Eko; Widodo, Pudji
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.337

Abstract

Research aims to conduct diversity and productivity of indigenous forage in different levels vegetation density in Gombong-Selatan karst mountain. We used survey method to explain the research by sampled three location of vegetation density, they are moderate, high, and very high. In each location vegetation density we take five parts by using random sampling. Then, a descriptive technique is used to analyzed the indigenous forage diversity data result whereas variance analysis is used to analyzed the productivity.The results shows the highest diversity of indigenous forage in Gombong-Selatan karst mountain is in moderate vegetation density area where has 36 species, high vegetation density has 20 species, and the highest vegetation density has 16 species. Eragrotis amabillis, Oplismenus burmannii, Centrosema pubescens, Ageratum conyzoides and Urena lobata are the dominant indegenous forage species in Gombong-Selatan karst mountain. The variances result shows that indigenous forage productivity in Gombong Selatan karst mountain is influenced by vegetation density. We found that lowest productivity is in high vegetation density.
Karakterisasi Molekuler Ikan Gurami Soang (Osphronemus goramy Lac.) berbeda uuran menggunakan Pcr-Rflp Gen Sitokrom C Oksidase 1 Azizah, Siti Nur; Nuryanto, Agus; Pramono, Hendro
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.342

Abstract

Gourami (Osprhronemus goramy Lac.) is a  freshwater fish that is  widely cultivated in Indonesia, particularly by fish farmer in Java. Soang strain has a faster growth rate than other strains. However, the fry that derived from a single cohort (generated from a single spawning) shows various sizes even in the same age because they have different growth rate. Differences in growth rate may occur due to differences in metabolic capabilities especially cellular respiration. Different rate of respiration can be assumed to be due to differences in the genetic component, especially on their cytochrome c oxidase 1 gene (CO1). Therefore this study aimed to determine whether there are differences in PCR-RFLP marker CO1 gene among different sizes of gourami soang strain from the same cohort so that can be used to analyze genetic diversity. This study used survey method by applying purposive random sampling. Four restriction enzymes were used  during the  research. Molecular characters were defined descriptively based on the appearance of restriction fragment on agarose gel. The result showed that soang strain which used in this study had monomorphics allele on their CO1-HindIII. PstI, BamHI, and EcoRI, could not cut the PCR products and results no RFLP markers. So that genetic variation in the used CO1 gene fragment could not be detected using HindIII, Pst1, BamH1 and EcoR1 enzymes. The three different sizes of soang strain had similar alleles or homozygous, meaning that heterozigocity value was 0 (zero). Therefore, the CO1 gene in this study could not be used as molecular character to differentiate different sizes of gourami soang strain from the same cohort.
Struktur Komunitas Kepiting Intertidal pada Mangrove yang Terdegradasi di Segara Anakan Cilacap Zalindri, Marista; Sastranegara, Moh. Husein
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.338

Abstract

Makrobenthos intertidal crabs were found living in the sediment and its presence greatly affect the primary productivity in the mangrove ecosystem of Segara Anakan Cilacap. This mangrove area is the largest in the island of Java.  Human activities have caused a lot of pressure. The objective of this study is 1) to determine the structure of the different intertidal crab communities on degraded mangrove; 2) to know the different sediment texture on degraded mangrove in Segara Anakan Cilacap. This research was carried in two mangrove areas based on mangrove canopy cover percentage namely 80% and 30% canopy cover.  The research method for crab community structure was survey conducted by cluster sampling method from January-March 2013. The structure of the intertidal crab of different communities in normal mangrove areas and damaged mangroves. In the normal mangrove area, the number of species found in normal intertidal crab included 15 species consisting of 592 individual, while in the damaged mangrove area there were 14 species consisting of 845 individual. The normal mangrove area has clayey silt sediment texture, while the damaged mangrove area has the sand sediment texture of silt clay.
Efek NAA dan BAP terhadap Pembentukan Tunas, Daun, dan Tinggi Tunas Stek Mikro Nepenthes ampullaria Jack. Sari, Heti Sartika; Dwiati, Murni; Budisantosa, Iman
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.343

Abstract

This study aimed to know the interaction between NAA and BAP as well as to obtain the best combination of both treatments in promoting the growth of Nepenthes ampullariamicrocutting.An experiment arranged in a factorial Randomized Complete Block Design (RCBD) wasapplied. Stem segments were used as blocks, where block I was the first segment followed by the next two segments as block II and III respectively. Two factors, i.e. NAA concentrations (0, 5, 10, 15 µM) and BAP concentrations (0, 9, 18, 27 µM) were employed giving rise to 16 combination of treatments. Each treatment combination was replicated threetimes resulting in 48 experimental units. The parametersmeasured were date of shoot initiation, date of root initiation, shoot number, leaf number, root number, length of longest leafand shoot height. The results showed that interactionbetween NAA and BAP in promoting N. ampullariamicrocutting growth was observed.  Combination between NAA of 0 µM and BAP of 18 µMwas found to be the best in promoting N. ampullariamicrocutting growth.Meanwhile, combination between NAA 0 µM and BAP 27 µM was recommended to promote shoot number of N. ampullaria.
Uji Antagonis Jamur Tempe (Rhizopus Sp) terhadap Bakteri Patogen Enterik Virgianti, Dewi Peti
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.339

Abstract

Indonesian tempeh is a food product made from soybeans fermented by Rhizopus oligosporus. The role of R.oligosporus as the primary fungi in soybean is very important, that changing the composition of the substrate soybeans into food that is more nutritious and contains many enzymes and bioactive compounds, including antibacterial compounds. This study was aimed at testing the antibacterial activity of Rhizopus sp fungus isolated from commercial tempeh against several enteric pathogen bacteria Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 14028 and Shigella flexneri ATCC 12022. The tests were conducted by the antagonism test agar diffusion method, by putting pieces of SDA that has grown Rhizopus sp on agar Muller Hinton which test bacteria was inoculated. The incubation period was 24 hours at 37 ° C. The results showed that Rhizopus sp has antagonistic to the bacteria, which produce inhibitory zone of 28 mm against the E.coli ATCC 25922, 26 mm against S.typhimurium ATCC 14028 and 39.5 mm against Shigella flexneri ATCC 12022. Based on these results it can be concluded that the Rhizopus sp isolated from tempeh is antagonistic against enteric pathogenic bacteria. The results of this study reinforce the benefits of tempeh as a functional food.
Kelimpahan dan Potensi Biofuel Mikrofitobenthos dari Perairan Sungai Pekacangan yang terkena Limbah Cair Tapioka Christiani, Christiani; Insan, A Ilalqisny; Widyartini, Dwi Sunu
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.340

Abstract

Microphytobenthic a benthic plants, found in the waters of the sunlight reaching the bottom waters. In addition to acting as a primary producer also has the potential to produce renewable biofuels  The purpose of this study was to determine the microphyitobenthic abundance of river Pekacangan affected tapioca liquid industrial waste and to estimate its potential as a biofuels. This research used survey method with the sampling technique is purposive sampling based on existing environmental setting. As the main parameters are the types of microphytobenthic, while supporting research parameters are temperature, light penetration, pH, dissolved O2, BOD5, current velocity, TSS, TDS, nitrate, orthophosphate and silica. Microphytobenthic obtained at stations affected by the waste, in screening to determine its oil content.Abundance of microphytobenthic at a station directly exposed tapioca liquid waste 620 ind.mm-2.Isolated microphytobenthic River Pekacangan affected tapioca liquid waste had 22 isolates of microphytobenthos and after screened allegedly 7 isolates potential as a biofuel, namely Navicula sp., Amphora libyca, Ulothrix sp., Anabaena sp., Planctonema sp., Cymbella sp., and Eunotia sp.

Page 1 of 1 | Total Record : 8