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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Bioscientist : Jurnal Ilmiah Biologi
Pangaribuan, Rosa Delima
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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INSECT DIVERSITY IN MANGROVE ECOSYSTEMS IN PAYUM BEACH, MERAUKE REGENCY, PAPUA Sembiring, Jefri; Saleky, Dandi; Merly, Sendy Lely; Pangaribuan, Rosa Delima; Mendes, Johanna
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 11 No. 1 (2024): Biolink Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v11i1.12216

Abstract

Mangrove forest is a permanent habitat and transit area for various fauna. In the mangrove community, it forms a mixed habitat between terrestrial and aquatic fauna groups. This study aims to analyze the composition of mangrove species and the abundance of insects. There are 3 research station on the mangrove forest ecosystem on Payum beach. Sampling was carried out using the Line Transect method, starting with making a line transect (50 meters) on the outermost mangrove stands and pulling them inland. On each transect line a plot measuring 10 x 10 m is placed, in each of which 5 subplots/quadrants measuring 1 x 1 m are placed. Each transect line consist of 3 plots and 15 sub-plots will be obtained, so there are a total of 45 sub-plots. Based on the research results, it was found that several types of macrobenthos live abundantly and are associated with mangrove ecosystems, such as Terebralia palustris, Terebralia semistriata, Nerita sp., Cassidula angulifera, Cerithidea sp., Telescopium telescopium. Four species of mangroves are found on Payum Beach, Merauke Regency, South Papua Province, namely Avicennia alba, Rhizophora apiculate, Sonneratia alba, and Aegialitis annulata. The insect diversity index in the mangrove forest on Payum Beach in Merauke is H'=2.61, which indicates that the environmental conditions of Payum Beach are still quite good and insect diversity is in the medium category. The evenness index of 0.42 is included in the medium category because human activities vary, and the dominance index is 0.63 because the Payum Beach mangrove forest has various types of insects with moderate dominance.
Kajian Molekuler Ikan Sembilang (Neosilurus sp.) di Perairan Rawa Padi Kabupaten Merauke Saleky, Dandi; Siruru, Meyani Anjelita; Sunarni, Sunarni; Pangaribuan, Rosa Delima
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
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.v12i2.13387

Abstract

Sembilang is one of the fish that is abundant in Merauke mainland waters. Genetic research needs to be done to prevent the decline of catfish population. DNA barcoding is a taxonomic method that uses short genetic markers in an organism's DNA to identify species. This research aims to identify the Sembilang fish species using the Cytochrome Oxidase I gene. This study is an exploratory survey research. Sample collection was carried out in the waters of Padi Swamp, Merauke Regency. The mitochondrial cytochrome oxidase I (COI) gene was amplified using the Polymerase Chain Reaction (PCR) method with FISH-BCL and FISH-BCH primers. The results of analysis using DNA barcoding revealed that the samples collected were the Sembilang species (Neosilurus ater) with a DNA sequence length of 660 bp. Phylogenetic reconstruction using the Neighbor-Joining method with the 2-Parameter Kimura Model shows sequence grouping based on similarity and genetic distance between species.
Co-Authors Jefri Sembiring Mendes, Johanna Merly, Sendy Lely Saleky, Dandi Siruru, Meyani Anjelita Sunarni Sunarni