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Lily Inderia Sari
Staf Pengajar Jurusan Manajemen Sumberdaya Perairan, Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Energy Physics

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KOMUNITAS IKAN PADANG LAMUN DI PERAIRAN PULAU KEDINDINGAN KOTA BONTANG KALIMANTAN TIMUR Dhevy Widyawati; Aditya Irawan; Lily Inderia Sari
Jurnal Tropical Aquatic Sciences Vol. 1 No. 2 (2022): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/tas.v1i2.637

Abstract

This research was conducted in May 2021 – January 2022. This study aims to determine the Seagrass Fish Community in the waters of Kewallan Island, Bontang City, East Kalimantan. Based on sampling, it was repeated three times at 1 station. Analysis of fish data from research results using species composition (Ks), diversity index (H’), uniformity index (E) and dominance index (C). The results of the study found 775 individual fish from 28 species. Pentapodus bifasciatus is a common species with a relative abundance of (37.68%). Physical - chemical parameters consisting of temperature, turbidity, salinity, brightness, current speed, pH, DO, nitrate and phosphate are classified as very good for organisms that live in these waters. At the research station, six types of seagrass were found, namely Thalassia hemprichii, Halopila ovalis, Halopila minor, Enhalus acoroides, Syringodium isoetifolium, Cymodocea rotundata.
KARAKTERISTIK PERIFITON PADA DAUN LAMUN MUDA DAN DAUN TUA Enhalus acoroides DI PERAIRAN PULAU KEDINDINGAN KOTA BONTANG KALIMANTAN TIMUR Diana Nopita Sari; Aditya Irawan; Lily Inderia Sari
Jurnal Tropical Aquatic Sciences Vol. 1 No. 2 (2022): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/tas.v1i2.638

Abstract

Seagrass sampling in this study was carried out using purposive sampling method at 4 research stations. The results of this study were found in 37 species of old seagrass leaves consisting of 9 classes, namely Bacillariophyceae, Mediophyceae, Coscinodiscophyceae, Euglenoidea, Cyanophyceae, Dinophyceae, Chorophyceae, Chrysophyta and Xexanauplia. While in young seagrass leaves there are 33 species consisting of 8 classes, namely Bacillariophyceae, Mediophyceae, Coscinodiscophyceae, Euglenoidea, Cyanophceae, Chrysophyta, Dinophyceae and Hexanauplia. The highest periphyton composition in old and young leaves was in the Bacillariophyceae class with a percentage of 67% on young leaves and 70.9% on old leaves. The diversity index value obtained showed moderate distribution criteria because the number of periphyton individuals found in old and young leaves was relatively the same.
KARAKTERISTIK DISTRIBUSI ZAT HARA NITRAT DAN FOSFAT PADA AIR DAN SEDIMEN DI ESTUARIA TANJUNG LIMAU KOTA BONTANG KALIMANTAN TIMUR Dimas Andika Arnando; Aditya Irawan; Lily Inderia Sari
Jurnal Tropical Aquatic Sciences Vol. 1 No. 2 (2022): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/tas.v1i2.639

Abstract

This research was conducted in May 2021 - January 2022. The purpose of this study was to determine the distribution of nitrate and phosphate content in water and sediment in the Tanjung Limau estuary, Bontang City, East Kalimantan. Sampling of water and sediment was carried out at 4 research stations using a random method which was then analyzed at the Water Quality Laboratory and Soil Science Laboratory of PPLH Mulawarman University. The results showed that the nitrate content in the water was 0.012-0.018mg/L, 4.20-9.09% in the sediment, while the phosphate in the water was 0.014-0.077 mg/L and the phosphate in the sediment was 0.021-0.030%. The results of the analysis show that the nitrate and phosphate content is higher at Station 1 and lower towards Station 4. There is a significant difference between the nitrate and phosphate content in the water and in the sediment. The content of nitrate and phosphate is mostly sourced from upstream of the river, namely in residential areas and mangrove forests.
Co-Authors Aditya Irawan Aditya Irawan Dhevy Widyawati Diana Nopita Sari Dimas Andika Arnando Donny Lazuardi