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"Mikroplastik merupakan salah satu polutan di lingkungan berukuran mikro yang menjadi permasalahan global oleh tingginya penggunaan plastik masyarakat. Penelitian ini bertujuan untuk menganalisis kelimpahan dan kandungan jenis mikroplastik pada air laut, sedimen, serta daun lamun Enhalus acoroides di Taman Nasional Pulau Pramuka, Kepulauan Seribu. Sampel air disaring dengan plankton net sementara sedimen dikeringkan dalam oven hingga berat konstan, kemudian masing- masing dicampur dalam NaCl dan diidentifikasi mikroskop cahaya. Hasil yang didapat lamun titik timur memiliki rata-rata kelimpahan mikroplastik 33,35 partikel/cm2, titik utara 38,6 partikel/cm2, titik selatan 40,55 partikel/cm2, kemudian titik barat 42,65 partikel/cm2, dan titik baratlaut 44,7 partikel/cm2. Air titik timur 56 partikel/L, titik utara 58 partikel/mL, titik selatan 69,33 partikel/mL, titik barat 72 partikel/mL, dan titik barat laut 74,66 partikel/L. Sedimen titik timur 38,66 partikel/g, titik utara 58,66 partikel/g, titik selatan 75 partikel/g, titik barat 77 partikel/g, dan titik barat laut 89 partikel/g. Hasil uji kandungan jenis ATR-FTIR ditemukan kandungan HDPE, LDPE, dan PP. Uji Kruskal Wallis menunjukkan tidak ada perbedaan signifikan mikroplastik pada lamun Enhalus acoroides di kelima titik.

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Microplastic is one of the micro-sized pollutants in the environment and has become a global problem due to the high use of plastic amongst society. This study is aimed to analyze the abundance and content of microplastics in sea water, sediment, and seagrass Enhalus acoroides in Pramuka Island. The leaf surface of Enhalus acoroides were softly scraped using razor blade and microplastic was identified through microscope and ATR-FTIR. The water sample was filtered with a plankton net whereas the sediment was dried in an oven until constant weight, each was mixed in NaCl and identified through light microscope. Results obtained, east site has a microplastic average abundance of 33.35 particles/cm2, north site 38.6 particles/cm2, south site 40.55 particles/cm2, west site 42.65 particles/cm2, and northwest site 44.7 particles/cm2. The east site for water sample has average abundance 56 particles/mL, north site 58 particles/mL, south site 69.33 particles/mL, west site 72 particles/mL, and northwest site 74.66 particles/L. The east site for sediment has 38.66 particles/g,north site 58.66 particles/g, south site 75 particles/g, west site 77 particles/g, and northwest site 89 particles/g. The result of ATR-FTIR showed HDPE, LDPE, and PPcontent. Kruskal Wallis Test showed no significant difference in microplastic abundance in seagrass Enhalus acoroides at the five sampling sites and Pearson Test showed positive and signficant relation between microplastics in water and sediment."

"Mikroplastik yang mencemari perairan tawar dapat mengganggu keberlangsungan hidup biota di dalamnya. Penelitian ini bertujuan untuk menganalisis bentuk, warna, dan kelimpahan mikroplastik yang terkandung pada air, sedimen, insang, dan saluran pencernaan ikan red devil Amphilophus labiatus di Situ Kenanga dan Situ Mahoni, Universitas Indonesia, Depok, Jawa Barat. Sampel air dan sedimen di ambil pada 3 stasiun pengambilan sampel dari kedua situ. Sampel ikan red devil diperoleh 15 ekor pada masing – masing situ. Sampel insang dan saluran pencernaan dihancurkan menggunakan larutan asam nitrat (HNO3) 65%. Sampel air diambil 20 L dan disaring menggunakan plankton net. Sampel sedimen dikeringkan dalam oven sebanyak 25 gram. Larutan NaCl jenuh digunakan untuk memisahkan mikroplastik dengan pengotor. Sebanyak 1 mL sample diteteskan pada Sedgwick Rafter Chamber kemudian diamati dan dihitung berdasarkan bentuk mikroplastik di bawah mikroskop. Hasil penelitian menunjukkan kelimpahan mikroplastik bentuk fiber, fragmen, film, granula terdapat pada seluruh sampel dengan warna yang beragam. Hasil penelitian menunjukkan total kelimpahan rata – rata mikroplastik di Situ Kenanga sebanyak 434,33 ± 23,51 partikel L-1 pada air, 45.837,04 ± 36.305,97 partikel kg-1 pada sedimen, 268,33 ± 119,18 partikel gr-1 dan 1266,2 ± 349,72 partikel ind-1 pada insang, 287,79 ± 185,22 partikel gr-1 dan 978,22 ± 336,38 partikel ind-1 pada saluran pencernaan. Pada Situ Mahoni sebesar 437,67 ± 30,21 partikel L-1 pada air, 36.237,04 ± 16.702,59 partikel kg-1 pada sedimen, 429,18 ± 187,50 partikel gr-1 dan 1233,8 ± 253,60 partikel ind-1 pada insang, 318,04 ± 114,94 partikel gr-1 dan 1053,78 ± 328,44 partikel ind-1 pada saluran pencernaan.

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Microplastics that contaminate freshwater can disrupt the survival of the biota in it. This study aims to analyze the shape, color, and abundance of microplastics contained in water, sediment, gills, and digestive tract of red devil fish Amphilophus labiatus in Situ Kenanga and Situ Mahoni, University of Indonesia, Depok, West Java. Water and sediment samples were taken at 3 sampling stations from the two Situ. Samples of red devil fish were obtained 15 tails in each Situ. Samples of gills and digestive tract were destroyed using 65% nitric acid (HNO3) solution. Water samples were taken 20 L and filtered using a plankton net. Sediment samples were dried in an oven as much as 25 grams. Saturated NaCl solution was used to separate microplastics with impurities. A total of 1 mL of the sample was dropped into the Sedgwick Rafter Chamber and then observed and calculated based on the shape of the microplastic under a microscope. The results showed an abundance of microplastics in the form of fibers, fragments, films, and granules in all samples with various colors. The results showed the total average abundance of microplastics in Situ Kenanga was 434,33 ± 23,51 L-1 particles in water, 45.837,04 ± 36.305,97 particles kg-1 in sediments, 268.33 ± 119.18 particles gr-1 and 1266.2 ± 349.72 particles ind-1 in the gills, 287.79 ± 185.22 particles gr-1 and 978.22 ± 336.38 particles ind-1 in the digestive tract. At Situ Mahoni there are 437,67 ± 30,21 particles L-1 in water, 36.237,04 ± 16.702,59 particles kg-1 in sediments, 429.18 ± 187.50 particles gr-1 and 1233.8 ± 253.60 particles ind-1 on the gills, 318.04 ± 114.94 particles gr-1 and 1053.78 ± 328.44 particles ind-1 in the digestive tract.

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"Keberadaan mikroplastik di perairan dapat mengancam biota di dalamnya. Penelitian dilakukan dengan tujuan menganalisis kelimpahan, bentuk, dan warna mikroplastik pada air, sedimen, insang dan saluran pencernaan ikan sapu-sapu Pterygoplichthys pardalis dari Situ Kenanga dan Situ Mahoni, Kampus Universitas Indonesia, Depok. Pengambilan sampel air dan sedimen dilakukan pada inlet, midlet, dan outlet kedua situ. Sampel air disaring menggunakan plankton net, sampel sedimen diambil menggunakan Ekman grab kemudian dikeringkan menggunakan oven, sampel P. pardalis sebanyak 15 individu diambil menggunakan cast net dari masing-masing situ, kemudian insang dan saluran pencernaannya diisolasi dan didestruksi menggunakan HNO3 65%. Tiap sampel yang diperoleh dilarutkan dengan larutan NaCl jenuh agar terjadi flotasi. Pengamatan dilakukan menggunakan mikroskop cahaya dan Sedgwick Rafter Chamber untuk meletakkan sampel, dengan mengamati bentuk, warna, dan jumlah partikel mikroplastik. Hasil penelitian menunjukkan bahwa bentuk fiber, film, fragmen, granula, serta warna transparan, hitam, biru, dan merah muda ditemukan pada semua sampel. Kelimpahan mikroplastik di Situ Kenanga pada air sebanyak 48,26 ± 23,51 partikel L-1, sedimen 45837,04 ± 36305,97 partikel Kg-1, insang 290,48 ± 154,58 partikel g-1 atau 1156,44 ± 378,69 partikel ind-1, saluran pencernaan 134,37 ± 55,72 partikel g-1 atau 1364,89 ± 339,54 partikel ind-1. Kelimpahan mikroplastik di Situ Mahoni pada air sebanyak 48,63 ± 30,21 partikel L-1, sedimen 36237,04 ± 16702,60 partikel Kg-1, insang 287,23 ± 109,40 partikel g-1 atau 1153,78 ± 324,32 partikel ind-1, saluran pencernaan 123,77 ± 34,35 partikel g-1 atau 1304,44 ± 270,90 partikel ind-1. Tidak terdapat perbedaan signifikan antara kelimpahan mikroplastik di Situ Kenanga dan Situ Mahoni pada semua sampel.

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The presence of microplastics in the water could threaten the biota there. This study was conducted to analyze the abundance, shapes, and colors of microplastics in water, sediment, gills and digestive tract of amazon sailfin catfish Pterygoplichthys pardalis from Situ Kenanga and Situ Mahoni, Universitas Indonesia Campus, Depok. Sampling of water and sediment were carried out at the inlet, midlet, and outlet of both situ. Water samples were filtered using plankton net, sediment samples were taken using Ekman grab and dried using an oven, as many as 15 individual P. pardalis samples were taken using cast net from each situ, then their gills and digestive tract were isolated and pulverized using 65% HNO3. Each sample obtained was dissolved with saturated NaCl solution for flotation to occur. Observations were made using a light microscope and Sedgwick Rafter Chamber to place each sample, by observing the shape, color, and number of microplastic particles. The results showed that the shapes of fibers, films, fragments, granules, as well as transparent, black, blue, and pink colors were found in all samples. The abundance of microplastics in Situ Kenanga water was 48.26 ± 23.51 particles L-1, sediment 45837.04 ± 36305.97 particles Kg-1, gills 290.48 ± 154.58 particles g-1 or 1156, 44 ± 378.69 ind-1 particles, digestive tract 134.37 ± 55.72 particles g-1 or 1364.89 ± 339.54 ind-1 particles. The abundance of microplastics in Situ Mahoni water was 48.63 ± 30.21 particles L-1, sediment 36237.04 ± 16702.60 particles Kg-1, gills 287.23 ± 109.40 particles g-1 or 1153, 78 ± 324.32 ind-1 particles, digestive tract 123.77 ± 34.35 particles g-1 or 1304.44 ± 270.90 ind-1 particles. There was no significant difference between the abundance of microplastics in Situ Kenanga and Situ Mahoni in all samples."

"Penelitian ini menganalisis bentuk dan kelimpahan mikroplastik pada sumber air laut, sumber air tawar petak A, air kolam 19, pakan buatan (pelet), saluran pencernaan, dan feses udang vannamei Litopenaeus vannamei (Boone, 1931) di Tambak Udang Vannamei Unit Sobo, Banyuwangi, Jawa Timur. Sampel air diambil dan disimpan dalam botol kaca sebanyak 300 ml, sampel pakan menggunakan pakan jenis SGH2 buatan perusahaan sendiri sebanyak 10 gr, sedangkan sampel udang digunakan sebanyak 5 individu dari kolam 19 dan tiap udang diambil bagian saluran pencernaan dan fesesnya. Sampel air, pakan, saluran pencernaan, dan feses diamati menggunakan mikroskop serta dilakukan pengulangan sebanyak 3 kali. Sampel diambil pada tanggal 25 Oktober 2021 dengan DOC (Day of Culture) 53 dan penelitian berlangsung selama 1 bulan dari bulan Oktober hingga November 2021. Penelitian memperlihatkan tiga bentuk mikroplastik, yaitu fragmen, film, dan fiber. Mikroplastik bentuk fragmen mendominasi dalam penelitian ini. Selain itu, berdasarkan data kelimpahan mikroplastik, diketahui bahwa mikroplastik pada pakan banyak yang tidak ditemukan ke dalam proses pencernaan. Kemudian, diketahui juga tidak terdapat perbedaan nilai kelimpahan, serta terdapat hubungan kelimpahan mikroplastik pada saluran pencernaan dan feses udang vannamei.

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This study analyzed the shape and abundance of microplastics in seawater sources, plot A freshwater source, pond water, artificial feed, digestive tract, and feces of Litopenaeus vannamei (Boone, 1931) at Unit Sobo Shrimp Ponds, Banyuwangi, East Java. As much as 300 ml of water were taken and stored in glass bottles; feed samples made by the company itself, were taken as much as 10 grams; while shrimp samples were used as many as 5 individuals from 19 ponds, taken from the digestive tract and feces. Each sample were observed using a microscope and repeated 3 times. Samples were taken on October 25, 2021 with DOC (Day of Culture) 53 and the study lasted for 1 month from October to November 2021. Research shows three forms of microplastics, namely fragments, films, and fibers. Microplastic fragments dominate in this study. In addition, based on data on the abundance of microplastics, it is known that many microplastics in feed are not found in the digestive process. Then, it was also known that there was no difference in the abundance value and that there was a relationship between the abundance of microplastics in the digestive tract and feces."

"Peningkatan jumlah limbah plastik yang dibuang ke Situ Rawa Besar mengancam habitat ikan cere. Limbah plastik akan terdegradasi menjadi partikel kecil yang disebut dengan mikroplastik. Mikroplastik dapat terkonsumsi oleh ikan cere karena ukurannya yang mirip dengan sumber makanannya. Penelitian ini bertujuan untuk mengetahui adanya keberadaan mikroplastik dan menganalisis berbagai macam bentuk mikroplastik pada air, sedimen dan ikan cere Gambusia affinis (Baird & Girard, 1853) di Situ Rawa Besar pada musim kemarau 2022 dan musim hujan 2023. Seluruh sampel diambil di 3 stasiun yaitu inlet, midlet, dan outlet. Sampel air 20 L disaring menggunakan plankton net 350 mesh, sampel sedimen diambil 250 mL menggunakan Ekman grab, ikan cere diambil secara acak menggunakan dip net sebanyak 15 individu. Sampel ikan diawetkan dengan alkohol 70% dan diekstraksi menggunakan 5mL HNO3 1 M. Sedimen dikeringkan pada oven 65C dan dihaluskan. Seluruh sampel dilarutkan dengan NaCl jenuh. Larutan dihomogenisasi sebanyak 20 mL dan 1 mL diteteskan pada Sedgewick Rafter Chamber untuk diamati di bawah mikroskop cahaya. Hasil pengamatan pada musim kemarau 2022 menunjukkan total rata-rata kelimpahan mikroplastik pada air sejumlah 46,33 ± 4,67 partikel L-1, pada sedimen sejumlah 31.777,78 ± 16.344,67 partikel kg-1, pada ikan cere sejumlah 291,11 ± 73,10 partikel ind-1 atau 93,52 ± 14,33 partikel cm-1. Sementara itu, pada musim hujan 2023 menunjukkan total rata-rata kelimpahan mikroplastik pada air sejumlah 64,67 ± 8,70 partikel L-1 , pada sedimen sejumlah 34.222,22 ± 17.493,91 partikel kg-1, dan pada ikan cere sejumlah 254,00 ± 40,28 partikel ind-1 atau 89,71 ± 12,15 partikel cm-1. Hasil Uji Korelasi Spearman menunjukkan terdapat korelasi positif sangat kuat antara kelimpahan mikroplastik pada air dengan sedimen, serta antara panjang ikan cere dengan kelimpahan mikroplastik pada ikan cere. Hasil analisis Uji T Dua Sampel menunjukkan tidak terdapat perbedaan nyata pada seluruh sampel.

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The increasing amount of plastic waste dumped into Situ Rawa Besar threatens the mosquitofish habitat. Plastic waste degrades into small particles called microplastics. Microplastics can be consumed by mosquitofish because their size is similar to that of their food source. This research aims to determine the presence of microplastics and analyze various forms of microplastics in water, sediment, and the mosquitofish Gambusia affinis (Baird & Girard, 1853) in Situ Rawa Besar during the 2022 dry season and the 2023 wet season. All samples were taken at three stations, namely inlet, midlet, and outlet. A 20 L water sample was filtered using a 350 mesh plankton net, 250 mL sediment samples were taken using an Ekman grab, and 15 mosquitofish were randomly captured using a dip net. Fish samples were preserved with 70% alcohol and extracted using 5 mL of 1 M HNO3. The sediment was dried in an oven at 65°C and ground. All samples were dissolved with saturated NaCl. The solution was homogenized to 20 mL, and 1 mL was dropped into the Sedgewick Rafter Chamber to be observed under a light microscope. The results of observations in the 2022 dry season showed that the total average abundance of microplastics in the water was 46.33 ± 4.67 particles L-1, in sediment was 31,777.78 ± 16,344.67 particles kg-1, and in mosquitofish was 291.11 ± 73.10 particles ind-1 or 93.52 ± 14.33 particles cm-1. Meanwhile, in the 2023 wet season, the total average abundance of microplastics in the water was 64.67 ± 8.70 particles L-1, in the sediment was 34,222.22 ± 17,493.91 particles kg-1, and in mosquitofish was 254.00 ± 40.28 particles ind-1 or 89.71 ± 12.15 particles cm-1. The results of the Spearman Correlation Test showed that there was a very strong positive correlation between the abundance of microplastics in water and sediment, as well as between the length of mosquitofish and the abundance of microplastics in mosquitofish. The results of the Two Sample T Test analysis show that there are no significant differences in all samples."

"Penelitian ini bertujuan untuk menganalisis kelimpahan serta jenis mikroplastik yang terakumulasi pada air, sedimen, dan saluran pencernaan bulu babi Diadema setosum, menganalisis korelasi anatara kelimpahan mikroplastik yang terkandung pada saluran pencernaan dan sedimen, membandingkan hasil kelimpahan mikroplastik di Pulau Tidung dan Pulau Untung Jawa, Jakarta Kepulauan Seribu. Pengambilan sampel bulu babi Diadema setosum, air, dan sedimen dilakukan dari 15 lokasi yang berbeda berdasarkan letak koloni biota. Sampel saluran pencernaan bulu babi dianalisis dengan cara melarutkannya pada HNO3 65%, sampel air (20 l) disaring dengan plankton net 300 µm, dan sampel sedimen (200 g) dikeringkan di oven terlebih dahulu, kemudian masing-masing sampel diberi NaCl untuk dijenuhkan agar mikroplastik mengapung ke atas permukaan. Masing-masing sampel (1 ml) diletakan pada Sedgwick Rafter Chamber untuk diamati di bawah mikroskop dan dihitung berdasarkan jenis partikel yang ditemui yaitu fiber, film, fragmen, dan granula. Hasil penelitian menunjukan kelimpahan mikroplastik pada Pulau Untung Jawa lebih tinggi sejumlah 99,88 ± 1,79 partikel L-1 pada air, 110.737,77 ± 4.197,61 partikel Kg-1 pada sedimen, dan 2.175,55 ± 584,26 partikel Ind-1 pada saluran pencernaan bulu babi. Pada Pulau Tidung kelimpahan mikroplastik yang terkandung pada air sejumlah 87,4 ± 9,61 partikel L-1, pada sedimen sebesar 87.626,66 ± 4.957,00 partikel Kg-1, dan pada saluran pencernaan bulu babi sebesar 1.786,66 ± 451,17 partikel Ind-1. Adanya korelasi positif antara jumlah mikroplastik dengan berat sedimen yang terkandung dalam saluran pencernaan bulu babi di Pulau Untung Jawa, dan tidak adanya korelasi positif antara jumlah mirkoplastik dengan berat sedimen yang terkandung dalam saluran pencernaan bulu babi di Pulau Tidung.

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This study aims to analyze the abundance and types of microplastics that accumulate in water, sediments, and digestive tracts of sea urchins Diadema setosum, analyzed the extent of microplastic abundance contained in smelting and sediments, compared the results of microplastic abundance in Untung Jawang Island and Tidung Island, Seribu Islands. Samples of sea urchins Diadema setosum, water, and sediment were taken from 15 different locations based on the location of the biota colony. Samples of the digestive tracts of sea urchins were analyzed by dissolving them at 65% HNO3, water samples (20 l) were filtered with a 300 μm plankton net, and sediment samples (200 g) were dried in the oven first, then each sample was given NaCl to saturate the microplastic to use upward display. Each sample (1 ml) is placed in the Sedgwick Rafter Chamber to be examined under a microscope and calculated based on the type of particles found, namely fibers, film, fragments, and granules. The results showed that the abundance of microplastic in Untung Jawa Island was higher at 99,88 ± 1,79 particles L-1 in water, 110.737,77 ± 4.197,61 Kg-1 particles in sediment, and 2.175,55 ± 584,26 Ind-1 particles in the digestive tract of sea urchins. On Tidung Island microplastic abundance contained in the water amounted to 87,4 ± 9,61 particles L-1, the sediment of 87.626,66 ± 4.957,00 particles Kg-1, and in the digestive tract of sea urchins amounted to 1.786,66 ± 451, 17 particles Ind-1. There is a positive correlation between the amount of microplastics and sediment weight contained in the digestive tract of sea urchins on Untung Jawa Island, and there is no positive correlation between the number of microplastics with the sediment weight contained in the digestive tract of sea urchins on Tidung Island."

"Mikroplastik diketahui telah tertelan oleh berbagai taksa biota. Penelitian ini dilakukan untuk menganalisis kelimpahan, bentuk, dan warna mikroplastik yang terdapat pada air, sedimen, dan ikan cere Gambusia affinis di Situ Kenanga dan Situ Mahoni, Universitas Indonesia, Depok, Jawa Barat. Seluruh sampel diambil di 3 stasiun yaitu inlet, midlet, dan outlet. Sampel air 20 L disaring menggunakan plankton net 350 mesh, sampel sedimen diambil 250 mL menggunakan Ekman grab, ikan cere diambil secara acak menggunakan dip net sebanyak 20 individu dari tiap situ. Sampel ikan diawetkan dengan alkohol 70% dan diekstraksi menggunakan 10 mL NaOH 1 M. Sedimen dikeringkan pada oven 65°C dan dihaluskan. Seluruh sampel dilarutkan dengan NaCl jenuh. Larutan dihomogenisasi sebanyak 20 mL dan 1 mL diteteskan Sedgewick Rafter Chamber untuk diamati di bawah mikroskop cahaya. Hasil pengamatan menunjukkan total rata-rata kelimpahan mikroplastik di Situ Kenanga pada air sejumlah 434,33 ± 23,51 partikel L-1, pada sedimen sejumlah 45.837,04 ± 36.305,97 partikel kg-1, pada ikan cere sejumlah 287, 67 ± 95,65 partikel ind-1 atau 212,28 ± 61,88 partikel gram-1. Sementara itu, pada air di Situ Mahoni sejumlah 437,67 ± 30,21 partikel L-1, pada sedimen sejumlah 36.237,04 ± 16.702,59 partikel kg-1, dan pada ikan cere sejumlah 275 ± 95,82 partikel ind-1 atau 654,28 ± 279,71 partikel gram-1. Hasil analisis Uji T Dua Sampel menunjukkan tidak terdapat perbedaan nyata pada sampel air, sedimen, dan ikan cere (partikel ind-1), tetapi terdapat perbedaan nyata pada ikan cere (partikel g-1) dari kedua situ. Fiber dan warna hitam merupakan bentuk dan warna mikroplastik yang mendominasi keseluruhan sampel.

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Microplastics have been ingested by various biota taxa. This study was aimed to analyze the abundance, shape, and color of microplastic found in water, sediment, and mosquitofish Gambusia affinis in Situ Kenanga and Situ Mahoni, University of Indonesia, Depok, West Java. All samples were taken at 3 stations, namely inlet, midlet, and outlet. Water samples (20 L) were filtered using a 350 mesh plankton net, sediment samples (250 mL) were taken using an Ekman grab, mosquitofish were taken randomly using a dip net, and 20 individuals from each situ (total of 40 individuals). Fish samples were preserved in 70% alcohol and extracted using 10 mL of 1 M NaOH. Sediments were dried in an oven at 65°C and pulverized. All samples were dissolved with saturated NaCl. The solution (20 mL) was homogenized, then 1 mL of solution was taken to the Sedgewick Rafter Chamber and then observed under a light microscope. The results showed that the average total of microplastics in Situ Kenanga in water was 434,33 ± 23,51 L-1 particles, in sediments were 45.837,04 ± 36.305,97 kg-1 particles, and in fish were 287, 67 ± 95,65 ind-1 particles or 212,28 ± 61,88 gram-1 particles. Meanwhile, the average total of microplastics in Situ Mahoni in water were 437,67 ± 30,21 L-1 particles, in sediments were 36.237,04 ± 16.702,59 kg-1 particles, and in fish were 275 ± 95,82 ind-1 particles or 654,28 ± 279,71 gram-1 particles. The results of the Two Sample T-Test analysis showed that there was no difference in water, sediment, and mosquitofish (ind-1 particles) between the two situ, but there was a significant difference in mosquitofish (g-1 particles) from the two situ. Fiber and black were respectively the predominant shapes and colors of microplastics in all samples."

"Peningkatan timbulan sampah dan perbedaan curah hujan memengaruhi akumulasi mikroplastik dari sungai ke laut. Mikroplastik terdistribusi dan tersebar ke seluruh ekosistem laut, termasuk hutan mangrove. Mikroplastik yang memasuki hutan mangrove terperangkap oleh akar mangrove dan terakumulasi di sedimen. Mikroplastik di sedimen hutan mangrove dapat dengan mudah termakan oleh biota deposit-feeder, seperti siput mangrove. Penelitian ini bertujuan untuk menganalisis perbandingan kelimpahan mikroplastik pada tubuh siput Terebralia sulcata dan sedimen di hutan mangrove Pulau Rambut, Teluk Jakarta, DKI Jakarta tahun 2022 dan 2023 serta untuk menganalisis korelasi antara kelimpahan mikroplastik di sedimen dengan kelimpahan mikroplastik di tubuh siput T. sulcata. Sebanyak 20 sampel T. sulcata dan sedimen diambil di empat stasiun di tahun 2022 dan 2023. Jaringan tubuh T. sulcata dilarutkan dengan HNO3 65% dan diencerkan dengan NaCl jenuh. Sampel sedimen dikeringkan menggunakan oven kemudian 10 g sedimen kering diencerkan dengan larutan NaCl jenuh. Sebanyak 20 mL dari masing-masing sampel dihomogenkan dan diamati di bawah mikroskop dengan tiga kali pengulangan. Hasil penelitian menemukan adanya partikel mikroplastik pada siput T. sulcata dengan kelimpahan sebesar 305,53±64,58 partikel/g pada tahun 2022 dan 324,48±60,91 partikel/g pada tahun 2023. Kelimpahan mikroplastik pada sedimen didapatkan sebesar 66,53±10,69 partikel/g pada tahun 2022 dan 71,77±11,31 partikel/g pada tahun 2023. Dari tahun 2022 ke tahun 2023, kelimpahan mikroplastik mengalami peningkatan sebesar 7,87% pada siput T. sulcata dan 6,2% pada sedimen. Bentuk mikroplastik yang ditemukan pada sampel siput dan sedimen adalah fiber, fragmen, film, dan granul dengan bentuk yang paling banyak ditemukan adalah fiber. Hasil uji korelasi Spearman dalam penelitian ini menunjukkan adanya korelasi positif antara kelimpahan mikroplastik di sedimen dan kelimpahan mikroplastik di T. sulcata.

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The increase in the amount of waste and differences in rainfall affect the accumulation of microplastics from rivers to the sea. Microplastics distributed and spread throughout marine ecosystems, including mangrove forests. Microplastics that enter mangrove forests trapped by mangrove roots and accumulate in sediments. Microplastics in mangrove forest sediments can be easily ingested by deposit-feeder biota, such as mangrove snails. This study aims to analyze the comparison of the abundance of microplastics in Terebralia sulcata and sediment in the mangrove forest of Pulau Rambut, Jakarta Bay, DKI Jakarta in 2022 and 2023 and to analyze the correlation between the abundance of microplastics in sediment and T. sulcata. 20 samples of T. sulcata sediment were collected at four stations in 2022 and 2022. The body tissue of T. sulcata were dissolved with 65% HNO3 and then diluted with saturated NaCl. Sediment samples were dried using an oven then 10 g of dry sediment was diluted with saturated NaCl. A total of 20 mL of each sample was homogenized and observed under a microscope with three repetitions. The results of the study found the presence of microplastic particles in T. sulcata with an abundance was 305.53±64.58 particles/g in 2022 and 324.48±60.91 particles/g in 2023. The abundance of microplastics in sediments was 66.53±10.69 particles/g in 2022 and 71.767±11.31 particles/g in 2023. From 2022 to 2023, the abundance of microplastics increased by 7.87% in T. sulcata and 6.2% in sediment. The forms of microplastics found in T. sulcata and sediment samples were fiber, fragments, films and granules with the most commonly found form was fiber. The results of the Spearman correlation test in this study showed a positive correlation between the abundance of microplastics in the sediment and in T. sulcata."

"Penelitian bertujuan untuk mengetahui kelimpahan mikroplastik pada kerang hijau Perna viridis berbagai ukuran, mengetahui organ tubuh kerang hijau yang paling banyak menyimpan mikroplastik, serta mengetahui korelasi antara kelimpahan mikroplastik pada kerang hijau, air, dan sedimen. Sampel kerang hijau, air, dan sedimen diambil dari 3 stasiun berbeda dengan jarak masing-masing sekitar 500 m. Analisis kelimpahan mikroplastik dilakukan dengan cara mengisolasi mikroplastik pada setiap sampel. Isolasi pada sampel kerang dilakukan dengan melarutkan kerang di dalam larutan HNO3 65, sementara sampel air dan sedimen dilakukan dengan cara pemisahan berdasarkan ukuran dan massa jenis dengan perendaman dalam larutan NaCl jenuh. Hasil yang didapatkan, yaitu rata-rata kelimpahan mikroplastik pada kerang hijau ukuran 3, 6, dan 9 cm, yaitu 5,35; 24,99; dan 39,00 partikel/gram. Mikroplastik kelompok fiber dominan pada sampel kerang. Rata-rata kelimpahan mikroplastik di air dan sedimen, yaitu 13,15 partikel/L air laut dan 0,92 partikel/g sedimen kering. Mikroplastik kelompok film dominan pada sampel air dan sedimen. Sementara, kelompok pelet tidak ditemukan pada ketiga sampel. Terdapat korelasi antara kelimpahan mikroplastik dengan ukuran cangkang kerang, maupun dengan kelimpahan mikroplastik kelompok film dan fiber pada air dan sedimen.

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Research on abundance of microplastic in green mussel Perna viridis, water and sediments in Kamal Muara, North Jakarta has been done. The research determined the abundance of microplastic in green mussel of various sizes, the organ of the green mussels most storey microplastic, and the correlation between abundance of microplastic in green mussel, water, and sediment. Samples of green mussel, water and sediments were taken from 3 different stations with a distance of about 500 meters each. Analysis of abundance of microplastic was done by isolating microplastic in each sample. The isolation of the green mussel samples was done by dissolving the mussels in the HNO3 solution, while the water and sediment samples were performed by separation by size and density by immersion in a saturated NaCl solution.

The results obtained were, on average, abundance of microplastic in green mussel size 3, 6, and 9 cm ie, 5.35 24.99 and 39,00 particles gram. Microplastic fiber was dominant in mussel sample. The average abundance of microplastic in water and sediment are 13.15 particles L of sea water and 0.92 particles gram of dry sediment. Microplastic film was dominant in water and sediment samples. Meanwhile, pellet was not found in all three samples. There was a correlation between abundance of microplastic with green mussel size, as well as with abundance of microplastic of film and fiber in water and sediment."

"Penelitian ini bertujuan untuk mendeskripsikan lokasi, jenis, dan kisaran ukuran mikroplastik yang terdapat pada insang kerang hijau Perna viridis. Penelitian ini melanjutkan hasil penelitian Fathonia (2017) mengenai kelimpahan mikroplastik pada kerang hijau dari kolam kerang hijau Kamal Muara, Jakarta Utara. Sampel kerang hijau sebanyak 10 ekor dengan ukuran sekitar 7cm. Insang kerang hijau kemudian diisolasi, baik bagian luar maupun bagian dalam dan dibuat preparat. Preparat insang tersebut kemudian ditandai pada bagian-bagian insang yang dibagi menjadi bagian posterior, anterior, proksimal, dan distal. Preparat kemudian diamati di bawah mikroskop optik cahaya. Partikel mikroplastik yang diamati dicatat posisi dan jenis mikroplastik yang ada di insang kemudian diukur menggunakan aplikasi LAZ EZ. Hasil penelitian menunjukkan bahwa bagian distal mengandung lebih banyak mikroplastik daripada bagian proksimal. Kelompok mikroplastik yang dominan terdapat pada insang kerang hijau adalah jenis serat sebanyak 44% dari total jumlah partikel yang ditemukan. Kisaran ukuran mikroplastik yang ditemukan adalah 20-4500 m.

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This study aims to describe the location, type, and size range of microplastics found in the gills of the green mussel Perna viridis. This study continues the results of Fathonia's research (2017) regarding the abundance of microplastics in green mussels from the green mussel pond of Kamal Muara, North Jakarta. Samples of green mussels as many as 10 tails with a size of about 7cm. The green mussel gills were then isolated, both externally and internally and made preparations. The gill preparations were then marked on the parts of the gills which were divided into posterior, anterior, proximal, and distal parts. The preparations were then observed under a light optical microscope. The observed microplastic particles were recorded and the position and type of microplastic present in the gills were then measured using the LAZ EZ application. The results showed that the distal part contained more microplastics than the proximal part. The dominant group of microplastics found in the gills of green mussels is the type of fiber as much as 44% of the total number of particles found. The size range of microplastics found is 20-4500 m."