Hasil Pencarian  ::  Simpan CSV :: Kembali

"Penelitian mengenai mikroplastik pada karang marga Acropora meja dan bercabang life form tabulate dan branching, di perairan Pulau Rambut, Kepulauan Seribu pada April 2018. Penelitian bertujuan mengetahui jenis mikroplastik pada karang dan air laut, menghitung jumlah mikroplastik terbanyak yang ditemukan pada kedua tipe karang dan mengetahui korelasi mikroplastik pada air dan karang, mengetahui korelasi antara luasan karang dan mikroplastik pada karang dan mengetahui korelasi antara jumlah polip dan mikroplastik pada karang. Penelitian dilakukan dengan mengambil fragmen karang berukuran 2-3 cm dan air pada kedalaman 3 meter. Mikroplastik pada air diidentifikasi dengan ditambahkan larutan NaCl, sedangkan pada karang, sampel karang dikocok dalam air laut dan direndam dalam asam nitrat 3 selama 72 jam. Mikroplastik kemudian diamati di bawah mikroskop dengan perbesaran 10x10. Hasil pencacahan menunjukkan rata- rata jumlah mikroplastik pada air sebesar 76.083 partikel/L. Pada sampel karang hasil pengocokkan didapatkan rata-rata jenis mikroplastik sebesar 16.007 partikel/cm2 Karang bercabang dan 31.482 partikel/cm2 Karang meja. Pada sampel karang hasil rendaman didapatkan rata-rata jenis mikroplastik sebesar 101 partikel/polip Karang Meja dan 51 partikel/polip Karang Bercabang. Hasil penelitian menunjukkan bahwa mikroplastik yang ditemukan pada air dan karang, yaitu film, fiber dan fragment dan jenis film memiliki jumlah tertinggi di air dan karang marga Acropora meja dan bercabang. Berdasarkan uji korelasi spearman, adanya korelasi jenis mikroplastik pada air dan karang marga Acropora meja dan bercabang. Begitu pun, adanya pengaruh luasan karang dan jumlah polip karang dengan jenis mikroplastik yang berada di karang. Uji FTIR dilakukan untuk membuktikan bahwa mikroplastik yang ditemukan berasal dari plastik dengan melihat polimer penyusunnya. Hasil uji FTIR, yaitu low density polyethylene LDPE film dan polyethylene terephthalate PET fragment dan fiber.

---

The study of microplastic in Acropora corals life form tabulate and branching at Rambut Island Waters, April 2018. This study was aimed to discover type of microplastic in saltwater and corals, determine total great quantities of microplastic in two types corals, discover correlation of microplastic in saltwater and corals, discover correlation of corals area and microplastic in corals and discover correlation of total polyp corals and microplastic in corals. This study took fragment corals with 2 mdash 3cm length collected at 3 meters depth. Microplastic discovered from salt water with add NaCl solutions and the Acropora corals fragments by shake in salwater and soak in 3 nitrit acid solution for about 72 hours. Microplastic were observed under a microscope with 10 x 10 magnification. The result obtained average total of microplastic in salt water at 507.222 particle L. Corals sample was shake obtained average of microplastic at 16.007particle cm2 life form branching and 31.482 particle cm2 life form tabulate. Corals sampel was soak obtained average total of microplastic at 101 particle polyp life form tabulate and 51 particle polyp life form branching.

The results of this study indicated that the microplastic were observed, that is film, fiber and fragment and film has the highest average total. Based on component of Spearman correlation, that method showed correlation the type of microplastic in saltwater and Acropora corals life form tabulate and branching. Another results of this study showed that the microplastic were influence of the corals extended and total of polyp corals with total types of microplastic in corals. microplastics in salt water with corals, the results showed occurs positive correlation types of microplastic film and fragment. FTIR method indicated that the polymer microplastic originated from plastic. The Result of FTIR method, that are low density polyethylene LDPE film dan polyethylene terephthalate PET fragment dan fiber. "

"Penelitian mengenai mikroplastik pada teripang Holothuria leucospilota Brandt, 1835 , air, dan sedimen di Pulau Rambut, Kepulauan Seribu, DKI Jakarta bertujuan untuk mengetahui jumlah dan jenis mikroplastik pada teripang, mengetahui korelasi antara jumlah mikroplastik pada organ respirasi, saluran pencernaan, sedimen yang dikonsumsi teripang, air, dan sedimen. Sampel teripang, air, dan sedimen diambil dari 3 stasiun berbeda, yaitu pada wilayah barat, timur, dan selatan Pulau Rambut. Analisis jumlah mikroplastik dilakukan dengan cara mengisolasi mikroplastik pada setiap sampel. Isolasi pada sampel teripang dilakukan dengan melarutkan organ respirasi dan saluran pencernaan di dalam larutan HNO3, sementara sampel air, sedimen, dan sedimen yang dikonsumsi dilakukan dengan cara pemisahan berdasarkan ukuran dan massa jenis dengan perendaman dalam larutan NaCl jenuh. Berdasarkan hasil yang diperoleh, organ respirasi mengandung jumlah film tertinggi dibandingkan organ lainnya, yaitu 4,7 partikel/g. Fiber dominan pada saluran pencernaan dan sedimen didalamnya, yaitu 2,34 dan 1,4 partikel/g secara berturut-turut. Rata-rata jumlah mikroplastik di air dan sedimen yaitu, 21,5 partikel/L air laut dan 15.420 partikel/kg sedimen kering. Mikroplastik jenis film dominan pada sampel air, sedangkan fragmen dominan pada sedimen. Terdapat korelasi antara jumlah mikroplastik pada organ respirasi dengan air; sedimen dengan sedimen yang dikonsumsi; fiber, film, dan granula pada sedimen yang dikonsumsi dengan saluran pencernaan.

---

The research on microplastic in the Sea Cucumber Holothuria leucospilota Brandt, 1835 , Water, and Sediment at Rambut Island, Kepulauan Seribu, DKI Jakarta aims to determine the amount and types of microplastic in sea cucumbers, the correlation of microplastic amount in the sea cucumber rsquo s respiratory organ, intestine, sediment consumed by the sea cucumber, water, and sediment. Microplastic polymeres were also identified. Samples of sea cucumbers, water, and sediments were collected from 3 different stations, which were the west, east, and south region of Rambut Island. The analysis of microplastic amount and types was done by isolating microplastics in each sample. The sea cucumber rsquo s respiratory organ and intestine was dissolved in HNO3, whereas separation by size and density by immersion in saturated NaCl solution was performed on the consumed sediment, water, and sediment samples. The respiratory organ contained the most amount of film, i.e. 4,7 particles g. Fiber were dominant in the intestine and the consumed sediment, i.e. 2,34 and 1,4 particles g respectively. The average amount of microplastic in water and sediment samples were 21,5 particles L sea water and 15.420 particles kg dry sediment. Film was dominant in water, while fragment was dominant in sediment. There was a correlation between the amount of microplastic in the respiratory organ and water sediment and consumed sediment fiber, film, and granule in the consumed sediment and intestine."

"Penelitian dilakukan untuk mengidentifikasi dan mengetahui kelimpahan mikroplastik yang terkandung pada sampel air, sedimen, kerang dara (Anadara granosa), kerang kampak gigi (Pinna muricata) dan kerang bulu (Anadara gubernaculum) yang diambil di Perairan Pulau Pramuka, Kepulauan Seribu, DKI Jakarta. Sampel air, sedimen dan Bivalvia diambil menggunakan metode jelajah bebas pada bagian selatan dan barat Perairan Pulau Pramuka. Sampel Bivalvia diambil masing-masing 10 sampel pada setiap spesiesnya. Analisis mikroplastik pada penelitian ini menggunakan metode pengapungan. Hasil penelitian menunjukan bahwa semua sampel yang didapatkan mengandung ke 4 jenis mikroplastik yaitu fiber, frgamen, film dan pellet dengan dominasi mikroplastik jenis fiber dengan persentasi lebih dari 75 % pada setiap sampelnya. Hasil penelitian menunjukan kelimpahan mikroplastik pada sampel air sebesar 54,5 ± 4,45 partikel L-1, pada sampel sedimen sebesar 58.000 ± 14.519,25 partikel Kg-1, sampel kerang dara 26,84 ± 3,88 partikel / g Ind-1, sampel kerang kampak gigi sebesar 82,06 ± 30,10 partikel / g Ind-1 dan pada sampel kerang bulu sebesar 27,83 ± 9,14 partikel / g Ind-1. Hasil uji non-parametrik Krusskal-wallis pada rata-rata kelimpahan mikroplastik pada sampel Bivalvia menunjukan bahwa terdapat perbedaan rata-rata antara kelimpahan mikroplastik pada sampel Bivalvia di Pulau Pramuka, Kepulauan Seribu, DKI Jakarta.

---

This research was conducted with the aim of identifying and knowing the abundance of microplastics contained in samples of water, sediment, blood cockles (Anadara granosa), Prickly pen shells (Pinna muricata) and Hairy arck cockles (Anadara gubernaculum) taken in the waters of Pramuka Island, Seribu Islands, DKI. Jakarta. Samples of water, sediment and bivalves were taken using the free roam method in the southern and western parts of Pramuka Island waters. Bivalvia samples were taken from 10 samples from each species. Microplastic analysis in this study used the flotation method. The results showed that all samples obtained contained 4 types of microplastics, namely fiber, fragment, film and pellet with a predominance of fiber type microplastic with a percentage of more than 75% in each sample. The results showed the abundance of microplastics in the water sample was 54.5 ± 4.45 L-1 particles, the sediment sample was 58.000 ± 14,519.25 particles Kg-1, blood cockles sample was 26.84 ± 3.88 particles /g Ind-1 particles, prickly pen shells sample was 82.06 ± 30.10 particles /g Ind-1 and 27.83 ± 9.14 particles / g Ind-1 on hairy arck cockles. The results of the Krusskal-wallis nonparametric test on the average abundance of microplastics in the Bivalvia sample showed that there was an average difference between the abundance of microplastics in the Bivalvia sample on Pramuka Island, Seribu Islands, DKI Jakarta."

"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.

---

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."

"Increased plastic waste in the environment, particularly in the mangrove forest of Pulau Rambut, Jakarta Bay, has the potential to affect the abundance of microplastics in the surrounding waters. Microplastics, which are very small in size (<5mm), can be accidentally ingested by marine organisms such as Terebralia palustris and have negative effects on marine life, the environment, and humans. This study aims to analyze the comparison of microplastic abundance in T.palustris and sediment in the mangrove forest of Pulau Rambut, Jakarta Bay, in 2022 and 2023, as well as to determine the correlation between microplastic abundance in T.palustris and sediment. Twenty samples of T.palustris and sediment were collected at four stations in 2022 and 2023. The body tissue of T.palustris was separated from its shell, then dissolved with HNO3 and added to saturated NaCl. Sediment samples were dissolved with saturated NaCl. Microplastic abundance was observed and calculated using a Sedgwick Rafter Chamber under a microscope. Four forms of microplastics were observed in the T. palustris and sediment samples, namely fibers, fragments, films, and granules. The results showed an increase in microplastic abundance from 2022 to 2023. In 2022, the microplastic abundance was 363,592 ± 11,511 particles/g in T. palustris and 66,69 ± 7,638 particles/g in sediment, while in 2023, it reached 406,574 ± 6,154 particles/g in T. palustris and 79,7 ± 12,992 particles/g in sediment. From 2022 to 2023, the abundance of microplastic in T.palustris (particle/g) increased by 5%, T.palustris (particle/individual) increased by 37%, and sediment by 19%. There is a positive correlation between the microplastic abundance of T.palustris and sediment, with value of 0,768 obtained from the Spearman correlation test.Increased plastic waste in the environment, particularly in the mangrove forest of Pulau Rambut, Jakarta Bay, has the potential to affect the abundance of microplastics in the surrounding waters. Microplastics, which are very small in size (<5mm), can be accidentally ingested by marine organisms such as Terebralia palustris and have negative effects on marine life, the environment, and humans. This study aims to analyze the comparison of microplastic abundance in T.palustris and sediment in the mangrove forest of Pulau Rambut, Jakarta Bay, in 2022 and 2023, as well as to determine the correlation between microplastic abundance in T.palustris and sediment. Twenty samples of T.palustris and sediment were collected at four stations in 2022 and 2023. The body tissue of T.palustris was separated from its shell, then dissolved with HNO3 and added to saturated NaCl. Sediment samples were dissolved with saturated NaCl. Microplastic abundance was observed and calculated using a Sedgwick Rafter Chamber under a microscope. Four forms of microplastics were observed in the T. palustris and sediment samples, namely fibers, fragments, films, and granules. The results showed an increase in microplastic abundance from 2022 to 2023. In 2022, the microplastic abundance was 363,592 ± 11,511 particles/g in T. palustris and 66,69 ± 7,638 particles/g in sediment, while in 2023, it reached 406,574 ± 6,154 particles/g in T. palustris and 79,7 ± 12,992 particles/g in sediment. From 2022 to 2023, the abundance of microplastic in T.palustris (particle/g) increased by 5%, T.palustris (particle/individual) increased by 37%, and sediment by 19%. There is a positive correlation between the microplastic abundance of T.palustris and sediment, with value of 0,768 obtained from the Spearman correlation test.

---

Increased plastic waste in the environment, particularly in the mangrove forest of Pulau Rambut, Jakarta Bay, has the potential to affect the abundance of microplastics in the surrounding waters. Microplastics, which are very small in size (<5mm), can be accidentally ingested by marine organisms such as Terebralia palustris and have negative effects on marine life, the environment, and humans. This study aims to analyze the comparison of microplastic abundance in T.palustris and sediment in the mangrove forest of Pulau Rambut, Jakarta Bay, in 2022 and 2023, as well as to determine the correlation between microplastic abundance in T.palustris and sediment. Twenty samples of T.palustris and sediment were collected at four stations in 2022 and 2023. The body tissue of T.palustris was separated from its shell, then dissolved with HNO3 and added to saturated NaCl. Sediment samples were dissolved with saturated NaCl. Microplastic abundance was observed and calculated using a Sedgwick Rafter Chamber under a microscope. Four forms of microplastics were observed in the T. palustris and sediment samples, namely fibers, fragments, films, and granules. The results showed an increase in microplastic abundance from 2022 to 2023. In 2022, the microplastic abundance was 363,592 ± 11,511 particles/g in T. palustris and 66,69 ± 7,638 particles/g in sediment, while in 2023, it reached 406,574 ± 6,154 particles/g in T. palustris and 79,7 ± 12,992 particles/g in sediment. From 2022 to 2023, the abundance of microplastic in T.palustris (particle/g) increased by 5%, T.palustris (particle/individual) increased by 37%, and sediment by 19%. There is a positive correlation between the microplastic abundance of T.palustris and sediment, with value of 0,768 obtained from the Spearman correlation test."

"Plastik yang terdapat di laut dapat terdegradasi menjadi partikel kecil < 5mm yang dikenal sebagai mikroplastik. Mikroplastik mengandung toksik dan memiliki kemampuan dalam mengikat zat beracun pada lingkungan yang berbahaya apabila tertelan oleh biota laut, terutama filer feeder dan deposit feeder. Telescopium telescopium merupakan organisme deposit feeder. ditemukannya mikroplastik dalam tubuh organisme deposit feeder dapat menyebabkan adanya biomagnifikasi. Penelitian ini bertujuan untuk mengetahui jenis dan jumlah partikel mikroplastik, yang terdapat di dalam tubuh T. telescopium, organ pernapasan dan pencernaan T. telescopium, serta pada sampel sedimen dan air. Penelitian ini juga bertujuan untuk mengetahui korelasi antara jumlah mikroplastik yang terdapat pada sedimen dan air di ekosistem mangrove Pulau Rambut, terhadap jumlah mikroplastik di dalam tubuh T. telescopium. Hasil menunjukkan bahwa, mikroplastik ditemukan di dalam tubuh T. telescopium, serta pada sampel sedimen, dan air. Organ pernapasan mengandung lebih banyak mikroplastik dibandingkan organ pencernaan. Korelasi positif ditemukan antara jumlah mikroplastik pada lingkungan terhadap jumlah mikroplastik di dalam tubuh T. telescopium. Film merupakan tipe mikroplastik yang paling banyak ditemukan pada seluruh sampel.

---

Plastic in the ocean can be degraded into small sized particles Plastic in the ocean can be degraded into small sized particles <5mm known as microplastics. Microplastics are toxic and have the ability to bind toxic substances in dangerous environments when ingested by marine biota, especially filter feeders and feeder deposits. Telescopium telescopium is a feeder deposit organism. the discovery of microplastics in the body of feeder deposit organisms can lead to biomagnification.

This study aims to determine the type and number of microplastic particles contained in the body of T. telescopium, the respiratory and digestive organs of T. telescopium, as well as in sediment and water samples. This study also aims to determine the correlation between the number of microplastics in the sediment and water in the Pulau Rambut mangrove ecosystem and the number of microplastics in the body of T. telescopium.

The results showed that, microplastics were found in the body of T. telescopium, as well as in sediment and water samples. Respiratory organs contain more microplastics than digestive organs. A positive correlation was found between the number of microplastics in the environment and the number of microplastics in the body of T. telescopium. Film is the type of microplastic that is mostly found in all samples."

"Keberadaan mikroplastik telah mencemari dan mengganggu perairan di wilayah Indonesia. Penelitian ini dilakukan untuk mengetahui perbandingan kelimpahan mikroplastik pada lamun Cymodocea rotundata, sedimen, dan air Pulau Rambut, Teluk Jakarta tahun 2022 dan 2023. Pengambilan sampel dilakukan di tiga stasiun Pulau Rambut (Timur, Selatan, dan Barat).  Sampel diambil sebanyak delapan individu lamun per stasiun, sedimen, dan air dengan metode random sampling. Sampel lamun dipotong sepanjang 2 cm lalu dikerik, sedimen dikeringkan lalu diberikan larutan jenuh NaCl, dan sempel air diberikan NaCl kemudian seluruh sampel diamati dibawah mikroskop. Rata-rata kelimpahan mikroplastik lamun C. rotundata pada tahun 2022 sebesar 42 partikel/cm dan pada tahun 2023 sebesar 44,46 partikel/cm. Rata-rata kelimpahan mikroplastik pada sedimen tahun 2022 sebesar 73,53 partikel/g dan pada tahun 2023 sebesar  79,56 partikel/g. Kelimpahan mikroplastik pada sampel air tahun 2022 sebesar 51,33 partikel/L dan pada tahun 2023 sebesar 53,78 partikel/L. Uji Korelasi Spearman menjelaskan bahwa kelimpahan mikroplastik sampel lamun dengan sedimen, air dengan sedimen, dan lamun dengan air memiliki korelasi positif yang kuat. Hasil Uji-T menyatakan terdapat perbedaan tidak signifikan kelimpahan mikroplastik pada lamun C. rotundata (sig. (2-tailed) 0,182>0,05) dan terdapat perbedaan signifikan kelimpahan mikroplastik sedimen tahun 2022 dan 2023 (sig. (2-tailed) 0,007<0,05). Hasil uji ATR-FTIR didapatkan kandungan polimer CA, ABS, HDPE, PMMA, PVC, dan PET pada sampel daun lamun C. rotundata.

---

The existence of microplastics has polluted and disturbed the waters in Indonesian territory. This research compared the abundance of microplastics i Cymodocea rotundata seagrass, sediment, and water on Rambut Island, Seribu Islands, Jakarta, in 2022 and 2023. Samples were taken as many as eight individuals of seagrass per station, sediment, and water by random sampling method. The seagrass samples were cut 2 cm long and scraped, the sediment was dried and then given a saturated solution of NaCl, and the water sample was given NaCl. Then all samples were observed under a microscope. The average microplastic abundance of C. rotundata seagrass leaves in 2022 was 42 particles/cm and in 2023, it was 4.46 particles/cm. The average abundance of microplastics in sediments in 2022 was 73.53 particles/g and in 2023, it was 79.56 particles/g. The abundance of microplastics in water samples in 2022 was 51.33 particles/L and in 2023, it was 53.78 particles/L. The Spearman Correlation Test explains that the microplastic abundance of seagrass with sediment, water with sediment, and seagrass with water samples had a strong correlation. The results of the T-test stated that there was no significant difference in the abundance of microplastics in seagrass leaves of C. rotundata (sig. (2-tailed) 0.182>0.05) and there was a significant difference in the abundance of microplastics in sediments in 2022 and 2023 (sig. (2-tailed) 0.007<0.05). The results of the ATR-FTIR test found the polymer content of CA, ABS, HDPE, PMMA, PVC, and PET in C. rotundata seagrass samples."

"Telah dilakukan penelitian tentang jenis dan kelimpahan mikroplastik pada daun lamun Cymodocea serrulata di Pulau Pramuka dan Pulau Semak Daun. Tujuan dari penelitian ini adalah membandingkan serta menganalisis kelimpahan dan jenis mikroplastik pada permukaan daun lamun atas dan bawah spesies Cymodocea serrulata, air dan sedimen. Sampel yang digunakan adalah daun lamun Cymodocea serrulata kemudian dipotong ± 1 cm2, 10 cm dari pangkal daun. Permukaan daun lalu dikerik menggunakan silet dan hasil kerikan diletakan pada kamar hitung Sedgewick Rafter Chamber dan ditetesi aquades lalu diamati pada mikroskop. Hasil pengamatan menunjukkan kelimpahan pada Pulau Pramuka lebih tinggi dengan nilai kelimpahan 86,85 ± 56,65 partikel.cm-2 dibandingkan Pulau Semak Daun sebesar 63,25 ± 33.01 partikel.cm-2. Kelimpahan mikroplastik pada air sebesar 98,62 ± 6,18 partikel.L-1 di Pulau Pramuka dan 59,58 ± 3,82 partikel.L-1 di Pulau Semak Daun. Kelimpahan pada sedimen di Pulau Pramuka sebesar 10766,67 ± 2280,59 partikel.Kg-1 dan 8333.33 ± 1239,18 partikel.Kg-1 pada Pulau Semak Daun. Mikroplastik yang berhasil teramati yaitu fiber, fragmen, film dan pellet. Film menjadi jenis mikroplastik yang paling banyak kelimpahannya pada permukaan daun lamun sedangkan fiber yang paling banyak ditemukan pada air dan sedimen. Hasil Uji-T (Independent Sample T-test) menunjukkan tidak terdapat perbedaan kelimpahan mikroplastik pada permukaan atas dengan bawah daun lamun, tetapi terdapat perbedaan yang signifikan kelimpahan mikroplastik pada permukaan daun lamun, air dan sedimen di Pulau Pramuka dengan Pulau Semak Daun.

---

A research was conducted on the types and abundance of microplastics on Pramuka Island and Semak Daun Island. The purpose of this study was to compare and analyze the abundance and types of microplastics on the upper and lower leaf surfaces of species Cymodocea serrulata, water and sediment. The sample used was seagrass leaves Cymodocea serrulata and then cut ± 1 cm2, 10 cm from the base of the leaf. The leaf surface was then scraped using a razor blade and the scraped results were placed in the counting Sedgewick Rafter Chamber and added with distilled water and observed under a microscope. Observations showed that the abundance on Pramuka Island was higher with an abundance value of 86.85 ± 56.65 particles.cm-2 compared to Semak Daun Island of 63.25 ± 33.01 particles.cm-2. Abundance microplastic in water was 98.62 ± 6.18 particles.L-1 on Pramuka Island and 59.58 ± 3.82 particles.L-1 on Semak Daun Island. The abundance of sediment on Pramuka Island was 10766.67 ± 2280.59 particles.Kg-1 and 8333.33 ± 1239.18 particles.Kg-1 on Semak Daun Island. The microplastics that were observed were fiber, fragments, films and pellets. Film is the most abundant type of microplastic on the surface of seagrass leaves, while fiber is the most abundant in water and sediment. The result of T-test (Independent Sample T-test) showed that there was no difference in the abundance of microplastic on the upper and lower surfaces of seagrass leaves, but there was a significant difference in the abundance of microplastics on the surface of seagrass leaves, water and sediment on Pramuka Island and Semak Daun Island."

"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.

---

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."

"Sampah plastik merupakan tipe sampah laut yang dominan ditemukan. Plastik-plastik tersebut terdegradasi secara fisika, kimia, maupun biologi hingga ukuran menjadi <5 mm. Teripang merupakan hewan bertipe deposite feeder yang mendapatkan makanan dengan cara mengaduk-aduk sedimen sehingga terdapat kandungan mikroplastik pada teripang. Penelitian ini bertujuan untuk menganalisis kepadatan mikroplastik pada sedimen dan teripang, serta menganalisis korelasi antara kepadatan mikroplastik pada sedimen dan teripang. Penelitian ini dilaksanakan pada bulan Februari hingga April 2018. metode yang digunakan adalah metode deskriptif melalui teknik purposive sampling dengan studi korelasional. Berdasarkan analisis perhitungan, mikroplastik yang ditemukan pada sedimen dan teripang di Pulau Tidung dan Pulau Bira Besar terdiri dari 4 (empat) jenis yaitu fiber 2722 partikel/g; 1982 partikel/g, fragment 254 partikel/g; 547 partikel/g, film 100 partikel/g; 50 partikel/g dan pelet 14 partikel/g; 9 partikel/g. Mikroplastik yang ditemukan pada teripang terdiri di Pulau Tidung dan Pulau Bira Besar dari 4 (empat) jenis yaitu fiber 2033 partikel/g; 1247 partikel/g, fragment 137 partikel/g; 183 partikel/g, film 60 partikel/g; 69 partikel/g dan pelet 9 partikel/g; 4 partikel/g. Hasil korelasi menunjukkan terdapat korelasi positif pada mikroplastik di sedimen dan di teripang.

---

Plastic waste is the dominant type of marine waste found. The plastics are degraded in physics, chemistry and biology to a size of <5 mm. Sea cucumbers are deposite feeder type animals that get food by stirring up sediments so that there is microplastic content in sea cucumbers. This research aims not only to analyze the microplastic density in sediments and sea cucumbers but also to analyze the correlation between microplastic density in sediments and sea cucumbers. This research was conducted from February to April 2018. The research data was the descriptive with purposive random sampling and correlational studies method. Based on calculation analysis, microplastic found in sediments and sea cucumbers on Tidung Island and Bira Besar Island, consists of 4 (four) types. There are fiber with 2722 particles/g; 1982 particles/g, fragment 254 particles/g; 547 particles/g, film 100 particles/g; 50 particles/g and pellets 14 particles/g; 9 particles/g. Microplastic found in sea cucumbers consists of Tidung Island and Bira Island. Consist 4 (four) types, which are fiber, 2033 particles/g; 1247 particles/g, 137 particle fragments/g; 183 particles/g, film 60 particles/g; 69 particles/g and pellets 9 particles/g; 4 particles/g. Correlation results showed a positive correlation with microplastic in sediments and in sea cucumbers."