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INDONESIA
Bioma : Berkala Ilmiah Biologi
Published by Universitas Diponegoro
ISSN : -     EISSN : 25982370     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
BIOMA (ISSN 1410-8801) adalah Majalah Ilmiah Biologi yang bertujuan mewadahi semua informasi hasil penelitian, telaah pustaka, makalah teknis, dan kajian buku, dari berbagai cabang ilmu Biologi. Diharapkan penerbitan ini dapat berkontribusi dalam penyampaian informasi ilmiah yang merupakan mata rantai proses kegiatan ilmiah. Terbit sejak tahun 1999.
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol. 21, No 1, Tahun 2019" : 12 Documents clear
Struktur Mikroanatomi Testis Tikus Putih (Rattus norvegicus) Setelah Pemberian Teh Kombucha Konsentrasi 75% Waktu Fermentasi 6, 9 Dan 12 Hari Isdadiyanto, Sri; Tana, Silvana
Bioma : Berkala Ilmiah Biologi Vol. 21, No 1, Tahun 2019
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.592 KB) | DOI: 10.14710/bioma.21.1.78-85

Abstract

The objective of this study was to analyze the testicular microanatomy structure of Rattus norvegicus after treatment by 75% kombucha tea with variation of fermentation time. Sixteen male of rats, 2 months of age were used as experimental animals treated with kombucha tea that had been fermented for 6, 9 and 12 days at the temperature of 25oC per oral. This research was using completely randomized design with 4 treatment (for 4 weeks) and 4 replications, namely: P0 = control, without of kombucha tea, P1 = water + 1,8 ml kombucha tea that had been fermented for 6 days in the morning and afternoon, P2 = water + 1,8 ml kombucha tea that had been fermented for 9 days in morning and afternoon, P3 = water + 1,8 ml kombucha tea that had been fermented for 12 days in morning and afternoon. The variables measured were seminiferous tubule diameter and Leydig cell counts. Data were analyzed with ANOVA followed by Duncan test at 95% confidence level were performed using SPSS version 16,0. The results showed that kombucha tea decreased the diameter of the seminiferous tubule, showing the potention of spermatogenesis disturbance, but did not affect Leydig cell counts of Rattus norvegicus
Bioakumulasi Timbal (Pb) Pada Makroalga Padina australis Hauck Di Perairan Laut Kota Makassar, Sulawesi Selatan Supardi, Wahyu; Nugroho, Andika Puspito
Bioma : Berkala Ilmiah Biologi Vol. 21, No 1, Tahun 2019
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (84.865 KB) | DOI: 10.14710/bioma.21.1.9-15

Abstract

Pb lead metal is one of marine pollution material that can accumulate on macroalga Padina australis. The purpose of this research is to know the accumulation of Pb on P.australis, the abundance, and to know the Pb content correlation with abundance on P. australis. Research conducted on February 2018 in Makassar marine waters. The results indicate that there is a difference of the metal content of Pb on P.australis in each station. The metal content of Pb on the station I was at the range 0,0964-0,1388 ppm, Station II 0,0496-0,1050 ppm, and Station III 0,0597-0,1035 ppm which has exceeded the waters standard limit set>0.008 ppm.  The high average Pb concentration on the station I because the station I was closer to the mainland of potentially greater influx of Pb heavy metals on macroalgae. P. australis abundance on a station I 92 individuals, II 152 individuals, and III 319 individuals. The data analysis result shows the value of significant correlations 0.384>0.05 that there is no correlation between the Pb concentrations with abundance but the direction of correlation indicates negative (-0331) which means that if the Pb concentration rises then  P. australis abundance will decrease.

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