Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Berkala Penelitian Hayati
Widodo
Jurusan Biologi, FMIPA Universitas Brawijaya.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
KONDISI HABITAT BULU BABI Tripneustes gratilla (LINNAEUS, 1758) DI TELUK CENDERAWASIH Abdul Hamid A. Toha; Sutiman B. Sumitro; Luchman Hakim; Widodo
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 17 No 2 (2012): June 2012
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.083 KB) | DOI: 10.23869/205

Abstract

The primary goal of this research was determine physical and chemistry conditions of habitat of Tripneustes gratilla at Cenderawasih Bay waters. Sites of research were Manokwari, Wasior, Biak, Yapen and Nabire. Habitat of T. gratilla was observed directly with determine of temperature, salinity, velocity of current, pH, and dissolved oxygen by using thermometer, saline refractometer, pH-meter and DO-meter. We found that habitat of T. gratilla has temperature range of 30-31° C, salinity 30–32o/oo, pH 7.3-8.0, DO 4.9–8.7 mg/L, wave frequency 0.32-0.72 Hz, and current velocity 0.06-0.1 m/sec. Statistic test showed that T. gratilla were impacted by DO about 80% and wave frequency with 66%. In general, habitat of T. gratilla in Cenderawasih Bay were in good condition and supporting growth, develop and survival of T. gratilla.
PENENTUAN JENIS KELAMIN BULU BABI Tripneustes gratilla SECARA MORFOLOGI Abdul Hamid A. Toha; Agung Pramana; Sutiman B. Sumitro; Luchman Hakim; Widodo
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 17 No 2 (2012): June 2012
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.43 KB) | DOI: 10.23869/224

Abstract

Determining the sex of T. gratilla was difficult and generally determined directly by the presence, length and shape as well as size gonopore genital papilla. We tried to determine of the gender 17 individual of T. gratilla based on morphological approach. Injection of KCl and cleavage of the whole individual is also carried out to observe the color of the gonads as a reference for determining the sex. We found 6 samples of female and 11 male samples based on gonad color. The results of morphological measurements showed that all parameters used have not been able to determine the sex of T. gratilla, either singly or in combination parameters. The number of samples need to be added till at least 30 individual each sex. This is consistent with logistic regression 3, where the P-value is less than the P-value logistic regression 1 and 2, which enables different results if the sample size is enlarged.
Co-Authors Agung Pramana Luchman Hakim Sutiman B. Sumitro