Article Per Year (5 Year)
p-Index From 2019 - 2024
0.444
P-Index
This Author published in this journals
All Journal Jurnal Ilmu Pertanian Indonesia Samakia: Jurnal Ilmu Perikanan Bioscientist : Jurnal Ilmiah Biologi
Hans Fence Zakeus Peday
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Makroavertebrata Bentos sebagai Bioindikator Kualitas Air Sungai Nimbai Manokwari, Papua Barat Simon Petrus Oktovianus Leatemia; Emmanuel Manangkalangi; Paskalina Theresia Lefaan; Hans Fence Zakeus Peday; Luky Sembel
Jurnal Ilmu Pertanian Indonesia Vol. 22 No. 1 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (632.349 KB) | DOI: 10.18343/jipi.22.1.25

Abstract

Benthos macroinvertebrates have been used as bioindicators to assess the waters quality of the stream, but still are very rarely to applied in West Papua streams. Benthos macroinvertebrates can describe the stream water quality so that very well be used as bioindicators, due to each species has a different tolerance to interference organic pollutants in waters. This study aimed to assess the water quality of Nimbai stream using benthos macroinvertebrates tolerance level and several water quality parameters. Data retrieval was conducted in JuneJuly and SeptemberOctober 2012 in seven stations (L1L7) from Nimbai upstream to downstream that connected to Prafi river. The water macroinvertebrates were taken using surber with mesh size 200 μm and then was identified at the family level. At L5 station near the oil palm waste disposal installations was contains oil and fat (<1-3 mg/l), which resulted in dissolved oxygen (DO) and pH is lower than the other stations. Similarly the value of H' is low (0.83), however, the value of C (0.79) was high that dominated by Oligochaeta. Famili biotic index (FBI) value obtained showed that water quality in the L1L4 stations was in good to excellent condition, but the quality at L5 station is classified as very poor. As the distance far away from the sources of pollution in the L5 station, water quality tends to improve as shown in the L6 and L7 stations. The result of this study shows the important benefits of benthos macroinvertebrates as bioindicators for assessing the quality of stream waters, and can be described aquatic environments disturbance to the benthos macroinvertebrates habitats in Nimbai stream.
Struktur Vegetasi Riparia dan Implikasinya Terhadap Kondisi Habitat Ikan Pelangi Arfak, Melanotaenia Arfakensis di Sungai Nimbai, Manokwari Papua Barat Paskalina Th. Lefaan; Hans Fence Zakeus Peday; Simon Petrus Oktovianus Leatemia; Luky Sembel; Emmanuel Manangkalangi
Samakia : Jurnal Ilmu Perikanan Vol 10 No 1 (2019): Samakia: Jurnal Ilmu Perikanan
Publisher : Faculty of Science and Technology University Ibrahimy

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1432.354 KB) | DOI: 10.35316/jsapi.v10i1.258

Abstract

Riparian vegetation has an important role in maintaining water stability, one of which is the river. This study aims to describe the structure of riparian vegetation so that its implications can be seen for the conditions of rainbow arfak habitat on the Nimbai River. The study was conducted in three forest types, namely primary riparia forest, secondary riparia forest and open riparia forest. Sample collection of riparian vegetation was carried out by purposive sampling using sample plots. Plots measuring 2 m x 2 m are used to sample seedling and understorey growth, plots measuring 5 m x 5 m for growth at the stake level, while plots measuring 10 m x 10 m and 20 m x 20 m, for growth of pole and tree levels respectively. The identification results obtained a total of 35 species of understorey and 51 tree-level plants in all three types of riparian forests. Based on the analysis of vegetation structure, it is known that the condition of primary riparia forest and secondary riparian forest still relatively supports the life of arfak rainbow fish compared to open riparian forest. Higher tree level density associated with canopy cover which has implications for the temperature of the water to be colder and less fluctuating, input larger litter into the food chain in the river, and hold suspended particles into the river. Also, the function of riparian vegetation in spawning activities, substrate attaching eggs and nursery habitat for arfak rainbow fish larvae. The results of this study indicate the importance of riparian vegetation structure on the condition of rainbow arfak fish habitat. An understanding of the structure of vegetation is also a basic information for efforts to rehabilitate this endemic fish habitat to maintain the existence of a natural population.
Analisis Perubahan Fungsi Kawasan Hutan di Kabupaten Manokwari Yohanes Yoseph Rahawarin; Hans Fence Zakeus Peday; Rudy Michael Yom; Jonni Marwa; Wolfram Yahya Mofu; Alexander Rumatora; Rusdy Angrianto; Christian Imburi
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v10i1.4945

Abstract

This study aims to analyze changes in the area and function of forest areas in Manokwari Regency from 1999 to 2014 using a Geographic Information System (GIS). This study uses a descriptive method with overlay techniques and maps analysis and secondary data, which consists of several stages including the preparation stage, the initial data processing, and processing stage, the ground checking stage, and the data analysis stage. The results showed that the change in the function of forest areas in Manokwari Regency based on the Decree of the Minister of Forestry Number: 891/Menhut-II/1999 to the Decree of the Minister of Forestry Number: 783/Menhut-II/2014, for a period of 15 (fifteen years), there has been a change in the function of the forest area which has an impact on reducing the area and changing the function of the forest area by 16,402,506 ha. This is mainly due to the release of forest areas from Convertible Production Forests (HPK) into Other Use Areas (APL) for development purposes. Factors that greatly influence the occurrence of changes in the area and function of forest areas are the release of forest areas in the context of plantation development, settlements, construction of office facilities and infrastructure, and construction of transportation support facilities.
Co-Authors Alexander Rumatora Christian Imburi Emmanuel Manangkalangi Jonni Marwa Luky Sembel Paskalina Theresia Lefaan Paskalina Theresia Lefaan Rudy Michael Yom Rusdi Angrianto, Rusdi Sembel, Luky Simon Petrus Oktovianus Leatemia Simon Petrus Oktovianus Leatemia Wolfram Mofu Yohanes Yoseph Rahawarin