Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia

Microplastics are recognized as common contaminants of coral ecosystem in Tidung Island, affecting both sediment and sea urchins residing in this environment. Therefore, this study aimed to determine the characteristics of microplastics found in sediment, the mouth, and the digestive system of sea u...

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Main Authors: Sulistiowati Sulistiowati, Neviaty Putri Zamani, Dietriech Geofrfey Bengen, Cheng Ling Lim, Muhammad Reza Cordova
Format: Article
Language:English
Published: Diponegoro University; Association of Indonesian Coastal Management Experts 2023-12-01
Series:Ilmu Kelautan
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Online Access:https://ejournal.undip.ac.id/index.php/ijms/article/view/57430
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author Sulistiowati Sulistiowati
Neviaty Putri Zamani
Dietriech Geofrfey Bengen
Cheng Ling Lim
Muhammad Reza Cordova
author_facet Sulistiowati Sulistiowati
Neviaty Putri Zamani
Dietriech Geofrfey Bengen
Cheng Ling Lim
Muhammad Reza Cordova
author_sort Sulistiowati Sulistiowati
collection DOAJ
description Microplastics are recognized as common contaminants of coral ecosystem in Tidung Island, affecting both sediment and sea urchins residing in this environment. Therefore, this study aimed to determine the characteristics of microplastics found in sediment, the mouth, and the digestive system of sea urchins (Diadema sp.), assessing the relationship between coral cover percentage and microplastic type and size, and the transfer of microplastics from sediment to sea urchins. Sampling was conducted twice, namely in October 2021 and October 2022. Microplastics in sediments were extracted using ZnCl2. The destruction process of sea urchins used 30% H2O2 and FeSO4.7H2O, while the microplastics were identified with Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR).  The results showed that the microplastics found in the sediments and sea urchins were similar in terms of shape, color, size, and plastic polymers. The forms of microplastics found in this study were fibre, fragment, and foam with fibre predominance, based on the results obtained. The size of microplastics found in sediments and sea urchins was dominated by sizes >1000 µm. Fibres were found in hard coral (HC) and dead coral (DC) conditions while fragments and foams were present in turf algae (TA), sponge (SP), and soft coral (SC) conditions. The microplastics found in sea urchins originate in part from sediments because they have similar characteristics. Sea urchins ingested microplastics from sediment, particularly those grown by algae as a food source. The increase in the number of microplastics found in sediment could potentially result in higher abundance in the biota.
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institution Kabale University
issn 0853-7291
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language English
publishDate 2023-12-01
publisher Diponegoro University; Association of Indonesian Coastal Management Experts
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spelling doaj-art-ceb26ec2256247b4b9f85adf7243df802025-08-20T03:29:02ZengDiponegoro University; Association of Indonesian Coastal Management ExpertsIlmu Kelautan0853-72912406-75982023-12-0128428930010.14710/ik.ijms.28.4.289-30023129Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, IndonesiaSulistiowati Sulistiowati0https://orcid.org/0000-0002-9257-2123Neviaty Putri Zamani1https://orcid.org/0000-0002-3312-2333Dietriech Geofrfey Bengen2https://orcid.org/0000-0002-3880-5117Cheng Ling Lim3https://orcid.org/0000-0002-9808-2221Muhammad Reza Cordova4https://orcid.org/0000-0002-4756-9646Marine Science Postgraduate, Faculty of Fisheries and Marine Science, IPB University, IndonesiaDepartment of Marine Science, Faculty of Fisheries and Marine Science, IPB University, IndonesiaDepartment of Marine Science, Faculty of Fisheries and Marine Science, IPB University, IndonesiaCentre for International Law, National University of Singapore, SingaporeResearch Center for Oceanography, National Research and Innovation Agency Republic of Indonesia, IndonesiaMicroplastics are recognized as common contaminants of coral ecosystem in Tidung Island, affecting both sediment and sea urchins residing in this environment. Therefore, this study aimed to determine the characteristics of microplastics found in sediment, the mouth, and the digestive system of sea urchins (Diadema sp.), assessing the relationship between coral cover percentage and microplastic type and size, and the transfer of microplastics from sediment to sea urchins. Sampling was conducted twice, namely in October 2021 and October 2022. Microplastics in sediments were extracted using ZnCl2. The destruction process of sea urchins used 30% H2O2 and FeSO4.7H2O, while the microplastics were identified with Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR).  The results showed that the microplastics found in the sediments and sea urchins were similar in terms of shape, color, size, and plastic polymers. The forms of microplastics found in this study were fibre, fragment, and foam with fibre predominance, based on the results obtained. The size of microplastics found in sediments and sea urchins was dominated by sizes >1000 µm. Fibres were found in hard coral (HC) and dead coral (DC) conditions while fragments and foams were present in turf algae (TA), sponge (SP), and soft coral (SC) conditions. The microplastics found in sea urchins originate in part from sediments because they have similar characteristics. Sea urchins ingested microplastics from sediment, particularly those grown by algae as a food source. The increase in the number of microplastics found in sediment could potentially result in higher abundance in the biota.https://ejournal.undip.ac.id/index.php/ijms/article/view/57430coral reefmicroplasticstidung islandsediment
spellingShingle Sulistiowati Sulistiowati
Neviaty Putri Zamani
Dietriech Geofrfey Bengen
Cheng Ling Lim
Muhammad Reza Cordova
Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
Ilmu Kelautan
coral reef
microplastics
tidung island
sediment
title Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
title_full Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
title_fullStr Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
title_full_unstemmed Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
title_short Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia
title_sort characteristic of microplastic on coral reef sediment and sea urchin diadema sp in tidung island jakarta bay indonesia
topic coral reef
microplastics
tidung island
sediment
url https://ejournal.undip.ac.id/index.php/ijms/article/view/57430
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