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All Journal Jurnal Perikanan dan Kelautan Authentic Research of Global Fisheries Application Journal (Aurelia Journal) ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Djunaidi Djunaidi
Politeknik Kelautan dan Perikanan Dumai
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Environmental Science

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Identifikasi Jenis Ikan Hasil Tangkapan Nelayan yang didaratkan di Pangkalan Pendaratan Ikan (PPI) Kota Dumai Provinsi Riau Djunaidi Djunaidi; Perdana Putra Kelana; Tyas Dita Pramesthy; Muhammad Nur Arkham; Rangga Bayu Kusuma Haris; Sri Yenica Roza
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 5, No 2 (2022): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v5i2.2607

Abstract

The Dumai City Fish Landing Base (FLB) is functioned to land fish both from within and from outside the City of Dumai to meet local consumption and for export purposes, however the various types of fish caught have not been properly identified. This study aims to identify and identify the types of fish caught by fishermen who are landed at the Fish Landing Base in Dumai City. The method used in this research was a survey. The fish species obtained were identified morphologically based on similarities in characteristics with the Taxonomy and Fish Identification Key books. The results showed that there were 14 types of fish from 14 families. all identified fish are neither protected nor endangered animals.
INVENTORY OF MACROZOOBENHTOS, WATER QUALITY AND SUBSTRATE IN THE MANGROVE ECOSYSTEM, DUMAI CITY, RIAU PROVINCE Djunaidi Djunaidi; Tyas Dita Pramesthy; Perdana Putra Kelana; Muhammad Nur Arkham; Rangga Bayu Kusuma Haris
Aurelia Journal Vol 5, No 1 (2023): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v5i1.12203

Abstract

Macrozoobenthos has an important role in ecological functions in mangrove ecosystems which can be used as bioindicators in aquatic ecosystems. The purpose of this study was to inventory macrozoobenthos, water quality and substrate found at the study site. The method used in this study was the observation transect method of mangrove vegetation measuring 10 x 10 meters in which 5 sub-plots were made in the plot where each sub-plot measuring 1 x 1 meter. Macrozoobenthos samples were taken from the substrate, stems and roots of mangroves. Measurements of water quality parameters were taken in situ at each research station and the substrate was taken using a shovel and then observed for sediment particles in the Dumai Maritime and Fisheries Polytechnic laboratory. This study succeeded in infentarizing the macrozoobenthos of the Mollusc Phylum, class Gastropods with 6 families and 6 species (Nerita articulata, Chicoreus capucinus, Littorina scabra, Ellobium aurisjudae, Cerithidae quoyii and Pugilina cochlidium) and class Bivalvia, 1 family and 1 species (Polymesoda bengalensis). Water quality parameter values consist of an average temperature of 29.73 ˚C, a salinity of 26.33 ppt, dissolved oxygen (DO) 4.92 mg/l and a pH of 6.9. This water quality condition can still be tolerated by mangrove and macrozoobenthos plants. Substrate texture at stations 1 and 2 includes the clay loam category and station 3 the sandy loam category which has an influence on the abundance of macrozoobenthos.
Analysis of conditions and vulnerability of mangrove ecosystem degradation in Dumai City Riau Province Indonesia Tyas Dita Pramesthy; Perdana Putra Kelana; Djunaidi Djunaidi; Muhammad Nur Arkham; Rangga Bayu Kusuma Haris
Jurnal Perikanan dan Kelautan Vol 12, No 2 (2022)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v12i2.17595

Abstract

There is still minimum information on the condition of the mangrove ecosystem, such as canopy cover and vulnerability of the ecosystem. Therefore, it was necessary to analyze that by assessing the Important Value Index (INP), canopy cover and vulnerability to degradation. The primary data needed are the type, density, frequency and basal area of mangroves obtained by the Transect Line Plot (TLP) method. The canopy cover was obtained using the Hemispherical Photography method. The data analyzed using INP, pixel analysis with binary images and compared to standard criteria of mangrove damage and vulnerability to degradation of mangrove ecosystems. This study identified 5 types of mangroves, Avicennia alba, Rhizophora apiculata, Rhizophora mucronata, Xylocarpus granatum and Sonneratia alba. Xylocarpus granatum was the species with the highest INP at stations 1 and 2, while at station 3 it was Avicennia alba. Station 1 has the highest canopy cover with a value of 86%. The condition of the mangrove ecosystem in Dumai is generally in the good category with medium stands. In addition, the level of vulnerability to mangrove degradation in can be categorized as low vulnerability. Although this research was conducted with simple methods and equipment, the results can provide an overall illustration of the condition of the Dumai’s mangrove ecosystem, making it easier for interested parties to manage the ecosystem.
Co-Authors Muhammad Nur Arkham Perdana Putra Kelana Rangga Bayu Kusuma Haris Sri Yenica Roza Tyas Dita Pramesthy