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Journal : Biology Natural Resources Journal

IDENTIFIKASI JENIS POLIMER MIKROPLASTIK PADA IKAN TONGKOL LISONG (Auxis rochei) DI PANTAI DAMAS PRIGI KABUPATEN TRENGGALEK JAWA TIMUR Nindia Sukma Trivantira; Fitriyah Fitriyah; Mujahidin Ahmad
Binar – Biology Natural Resources Journal Vol 1 No 2 (2023)
Publisher : Prodi Biologi Universitas PGRI Ronggolawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.739 KB) | DOI: 10.55719/Binar.2023.2.1.19-23

Abstract

Plastic has a fairly wide distribution in human life. The use of microplastics is very difficult to avoid because it has reduced various human activities. The use of plastics on a large and wide scale raises a problem for the environment and ecosytem through the degradation of plastics into microplastics. Microplastics have the potential to pose a threat to the environment and organisms, especially in water areas. Their small size allows microplastics to be ingested by zooplankton up to a higher trophic level. Damas Beach is one of the marine tourism destinations in the Prigi bay area with a potential fishery sector in East Java. The high activity of tourism and fishing causes Damas beach to be potentially polluted by microplastics. This study aims to determine the type of plastic polymer in the digestive tract of lisong tuna obtained in the Damas beach area, Prigi Bay, Treanggalek Regency, East Java. This study used a purposive sampling method with two repetitions. Types of microplastic polymers were analyzed using FTIR. The results of the analysis showed that the types of plastic polymers found in the digestive tract of lisong tuna include High Density Polyethylene (HDPE), Polyvinyl chloride (PVC), nylon (polyamide, Polyethylene Terephthalate (PET), Polypropylene (PP), and Polystyrene (PS).
IDENTIFIKASI TIPE DAN KELIMPAHAN MIKROPLASTIK PADA IKAN NILA (Oreochromis niloticus) DI WADUK LAHOR KABUPATEN MALANG JAWA TIMUR Anggie Eka Wienardy; Fitriyah Fitriyah; Umaiyatus Syarifah
Binar – Biology Natural Resources Journal Vol 2 No 1 (2023)
Publisher : Prodi Biologi Universitas PGRI Ronggolawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/binar.v2i2.693

Abstract

Plastics can be degraded into microplastics and easily to dispersed in waters, including reservoirs as water damming locations. Lahor Reservoir is known to be used as a location for aquaculture, one of which is nile tilapia (Oreochromis niloticus) and is fed by the Lekso river, Lahor river, and Dewi river. This certainly increases the potential for microplastic contamination and has a negative impact on aquatic biota and humans. The purpose of this study was to determine the potential for microplastic contamination in the digestive tract of nile tilapia in Lahor Reservoir, Malang Regency, East Java. The study was conducted at 4 sampling stations including Lekso river inlet, Lahor river inlet and Dewi river, Residential area of Karangkates village, and Lahor Tourism Park. 5 Fishes samples were taken at each station and the repetition process was carried out 3 times. Sample preparation with 20 ml of 30% HzO2 solution and 20 ml of 10% KOH. Identification types and abundance of microplastics was carried out with a 40× magnification stereo microscope. The results showed the discovery of several types of microplastics which is fiber, filament, fragment, and film and the highest total abundance value of microplastics was found in the Lahor river inlet and Dewi river at 6.47 particles / individual.
KEANEKARAGAMAN MAKROZOBENTOS DI SUNGAI SUMBER NGENEP KECAMATAN KARANGPLOSO KABUPATEN MALANG Fitriyah Fitriyah; Arum Sekar Ayu Kinanti
Binar – Biology Natural Resources Journal Vol 2 No 2 (2024)
Publisher : Prodi Biologi Universitas PGRI Ronggolawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/binar.v3i1.1049

Abstract

Rivers are a water source that has many roles in people's lives and is inhabited by many organisms. The quality of water can be seen from the number of organisms that live in that water. Organisms that can be used as biological indicators are macrozoobenthos. Macrozoobenthos are organisms whose movement characteristics tend to be limited and where they live permanently. The way to find indications of pollution in a river is to calculate the diversity of macrozoobenthos populations in the riverbed. The purpose of this study was to determine the diversity of macrozoobenthos in the Sumber Ngenep River, Karangploso District, Malang Regency. This research is quantitative research with an exploratory method. Sampling was carried out at 3 stations with 3 repetitions at each station. Identification using 3 literature and data analysis using the Shannon-Wiener Diversity Index (H') and Simpson Dominance Index (D). The research results obtained 10 macrozoobenthos genera. The diversity index value of station 1 (1.389), station 2 (1.638), station 3 (1.343). Dominance index value of station 1 (0.286), station 2 (0.262), station 3 (0.309).