Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 176627 dokumen yang sesuai dengan query
cover
Della Sherina Rizky
"Curah hujan di musim hujan berperan dalam mentransportasikan sampah, termasuk mikroplastik dari sungai ke laut. Peningkatan sampah, arus, dan peningkatan penduduk juga dapat memengaruhi kelimpahan mikroplastik. Mikroplastik di pesisir dapat menempel pada daun lamun. Daun lamun akan mengalami pertumbuhan, sehingga memungkinkan adanya perbedaan kelimpahan mikroplastik di sepanjang daun lamun. Penelitian ini bertujuan untuk menganalisis perbandingan kelimpahan mikroplastik pada daun Enhalus acoroides, air, dan sedimen di Pulau Lima, Teluk Banten pada musim hujan tahun 2020 dan 2021, serta menganalisis apakah ada perbedaan kelimpahan mikroplastik di sepanjang daun E. acoroides. Sampel daun diambil seluas 1 cm2 dari helaian daun, kemudian dikerik menggunakan cutter. Sampel air sebanyak 20 L diambil menggunakan plankton net. Sampel sedimen sebanyak 200 g dikeringkan menggunakan oven. Rata-rata kelimpahan mikroplastik pada sampel daun lamun tahun 2020 sebesar 46,96±3,13 partikel/cm2, dan tahun 2021 sebesar 61,5±6,63 partikel/cm2. Sampel air tahun 2020 sebesar 130,66±14,19 partikel/L, sedangkan 2021 sebesar 162,22±7,82 partikel/L. Sampel sedimen tahun 2020 sebesar 12.066±4.017,6 partikel/Kg, sedangkan 2021 sebesar 17.354,67±2.341,95 partikel/Kg. Terdapat peningkatan kelimpahan mikroplastik pada semua sampel di Pulau Lima, Teluk Banten saat musim hujan tahun 2020 hingga 2021. Rata-rata kelimpahan mikroplastik pada jarak 20 cm dari pangkal daun sebanyak 36,7±7,8 partikel/cm2 lebih rendah daripada jarak 50 cm sebanyak 144,4±23,74 partikel/cm2. Terdapat perbedaan kelimpahan mikroplastik di sepanjang daun lamun.

Rainfall in the rainy season plays a role in transporting waste, including microplastics from rivers to the sea. Increased waste, currents, and population growth can also affect the abundance of microplastics. Microplastics on the coast are attached to seagrass leaves. Seagrass leaves experienced growth, thus allowing for differences in the abundance of microplastics along with the leaves. This study aims to analyze the comparison of the abundance of microplastics in Enhalus acoroides leaves, water, and sediment on Lima Island, Banten Bay in the rainy seasons of 2020 and 2021, and analyze whether there are differences in the abundance of microplastics along with E. acoroides leaves. The leaves were taken ​​1 cm2 from the leaf blade, then scraped using a cutter. The water (20 L) was taken using a plankton net. The sediment (200 g) was dried using an oven. The average abundance of microplastics in seagrass leaf samples in 2020 was 46.96±3.13 particles/cm2, while in 2021 was 61.5±6.63 particles/cm2. The water sample in 2020 was 130.66±14.19 particles/L, while in 2021 was 162.22±7.82 particles/L. The sediment sample in 2020 was 12,066±4,017.6 particles/Kg, while in 2021 was 17,354.67±2,341.95 particles/Kg. There was an increase in the abundance of microplastics in all samples on Lima Island, Banten Bay during the rainy season from 2020 to 2021. The average abundance of microplastics at a distance of 20 cm from the base of the leaf was 36.7±7.8 particles/cm2, lower than a distance of 50 cm at 144.4±23.74 particles/cm2. There were differences in the abundance of microplastics along with the seagrass leaves. "
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Della Sherina Rizky
"Curah hujan di musim hujan berperan dalam mentransportasikan sampah, termasuk mikroplastik dari sungai ke laut. Peningkatan sampah, arus, dan peningkatan penduduk juga dapat memengaruhi kelimpahan mikroplastik. Mikroplastik di pesisir dapat menempel pada daun lamun. Daun lamun akan mengalami pertumbuhan, sehingga memungkinkan adanya perbedaan kelimpahan mikroplastik di sepanjang daun lamun. Penelitian ini bertujuan untuk menganalisis perbandingan kelimpahan mikroplastik pada daun Enhalus acoroides, air, dan sedimen di Pulau Lima, Teluk Banten pada musim hujan tahun 2020 dan 2021, serta menganalisis apakah ada perbedaan kelimpahan mikroplastik di sepanjang daun E. acoroides. Sampel daun diambil seluas 1 cm2 dari helaian daun, kemudian dikerik menggunakan cutter. Sampel air sebanyak 20 L diambil menggunakan plankton net. Sampel sedimen sebanyak 200 g dikeringkan menggunakan oven. Rata-rata kelimpahan mikroplastik pada sampel daun lamun tahun 2020 sebesar 46,96±3,13 partikel/cm2, dan tahun 2021 sebesar 61,5±6,63 partikel/cm2. Sampel air tahun 2020 sebesar 130,66±14,19 partikel/L, sedangkan 2021 sebesar 162,22±7,82 partikel/L. Sampel sedimen tahun 2020 sebesar 12.066±4.017,6 partikel/Kg, sedangkan 2021 sebesar 17.354,67±2.341,95 partikel/Kg. Terdapat peningkatan kelimpahan mikroplastik pada semua sampel di Pulau Lima, Teluk Banten saat musim hujan tahun 2020 hingga 2021. Rata-rata kelimpahan mikroplastik pada jarak 20 cm dari pangkal daun sebanyak 36,7±7,8 partikel/cm2 lebih rendah daripada jarak 50 cm sebanyak 144,4±23,74 partikel/cm2. Terdapat perbedaan kelimpahan mikroplastik di sepanjang daun lamun.

Rainfall in the rainy season plays a role in transporting waste, including microplastics from rivers to the sea. Increased waste, currents, and population growth can also affect the abundance of microplastics. Microplastics on the coast are attached to seagrass leaves. Seagrass leaves experienced growth, thus allowing for differences in the abundance of microplastics along with the leaves. This study aims to analyze the comparison of the abundance of microplastics in Enhalus acoroides leaves, water, and sediment on Lima Island, Banten Bay in the rainy seasons of 2020 and 2021, and analyze whether there are differences in the abundance of microplastics along with E. acoroides leaves. The leaves were taken 1 cm2 from the leaf blade, then scraped using a cutter. The water (20 L) was taken using a plankton net. The sediment (200 g) was dried using an oven. The average abundance of microplastics in seagrass leaf samples in 2020 was 46.96±3.13 particles/cm2, while in 2021 was 61.5±6.63 particles/cm2. The water sample in 2020 was 130.66±14.19 particles/L, while in 2021 was 162.22±7.82 particles/L. The sediment sample in 2020 was 12,066±4,017.6 particles/Kg, while in 2021 was 17,354.67±2,341.95 particles/Kg. There was an increase in the abundance of microplastics in all samples on Lima Island, Banten Bay during the rainy season from 2020 to 2021. The average abundance of microplastics at a distance of 20 cm from the base of the leaf was 36.7±7.8 particles/cm2, lower than a distance of 50 cm at 144.4±23.74 particles/cm2. There were differences in the abundance of microplastics along with the seagrass leaves."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Khairunnisa
"Penelitian ini bertujuan untuk menganalisis kelimpahan beserta bentuk mikroplastik yang terakumulasi pada kerang darah Anadara granosa, air dan sedimen serta menganalisis perbedaan kelimpahan mikroplastik pada kerang darah, air, dan sedimen di Teluk Banten saat musim hujan pada tahun 2020 dan 2021. Pengambilan sampel kerang darah, air, dan sedimen dilakukan di 3 lokasi stasiun yang berbeda pada 27 Januari 2020 dan 15 Maret 2021 di musim hujan. Sampel jaringan kerang sebanyak 10 individu pada tiap stasiun dilarutkan dengan HNO3 65%. Sampel air sebanyak 20 L disaring dengan menggunakan plankton net 300 µm. Sampel sedimen diambil sebanyak 200 g dikeringkan di oven. Masing-masing sampel dijenuhkan menggunakan NaCl agar mikroplastik dapat mengapung ke atas permukaan. Masing-masing sampel (1 ml) diteteskan di atas Sedgwick Rafter Chamber untuk diamati di mikroskop dan dihitung berdasarkan bentuk partikel yang ditemui yaitu fiber, film, fragmen. Hasil penelitian menunjukan kelimpahan mikroplastik tahun 2020 yang terkandung pada air sejumlah 205,55 ± 40,63 partikel L-1, pada sedimen 179.644,44 ± 37.017,07 partikel Kg-1, dan pada jaringan kerang darah 18.657,77 ± 2.979,57 partikel Ind-1. Kelimpahan miikroplastik pada tahun 2021 lebih tinggi sejumlah 219,44 ± 40,29 partikel L-1 pada air, 208.711,11 ± 25.198,70 partikel Kg-1 pada sedimen, dan 20.913,33 ± 3.532,8 partikel Ind-1 pada jaringan kerang darah.

This study aims to analyze the abundance and form of microplastics accumulated in the Anadara granosa blood clam, water and sediment and to analyze differences in the abundance of microplastics in blood, water, and sedimentary clams in Banten Bay during the rainy season in 2020 and 2021. Blood clams sampling, water, and sediment was carried out at 3 different station locations on 27 January 2020 and 15 March 2021 in the rainy season. 10 individual shellfish tissue samples at each station were dissolved with 65% HNO3. A sample of 20 L of water was filtered using a 300 m plankton net. Sediment samples were taken as much as 200 g and dried in the oven. Each sample was saturated using NaCl so that the microplastics could float to the surface. Each sample (1 ml) was dropped onto the Sedgwick Rafter Chamber to be observed under a microscope and calculated based on the shape of the particles encountered, namely fibers, films, fragments. The results showed that in 2020 the abundance of microplastics contained in water was 205.55 ± 40.63 L-1 particles, 179.644.44 ± 37.017.07 Kg-1 particles, and 18.657.77 ± 2.979.57 particles in blood clams. Ind-1 particles. The abundance of microplastics in 2021 is higher by 219.44 ± 40.29 L-1 particles in water, 208.711.11 ± 25.198.70 Kg-1 particles in sediments, and 20,913.33 ± 3,532.8 Ind-1 particles in tissue blood clams. "
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Masengi, Gersom
"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.

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."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2022
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Eka Hesdianti
"ABSTRAK
Luas padang lamun di Pulau Panjang Teluk Banten terus menurun akibat aktivitas industri di sekitar Teluk Banten Hilangnya padang lamun merugikan dikarenakan kapasitas lamun dalam menyerap dan menyimpan karbon dalam jumlah besar dan waktu yang lama Penelitian bertujuan mengetahui struktur komunitas lamun estimasi laju penyerapan karbon pada lamun Enhalus acoroides dan Cymodocea serrulata beserta nutrien di Pulau Panjang Teluk Banten Komunitas lamun diukur menggunakan metode analisis vegetasi di 3 stasiun pengamatan Penyerapan karbon diukur menggunakan metode penandaan daun Zieman pada 30 tegakan lamun selama 21 hari Kandungan karbon pada lamun dan sedimen di analisis menggunakan metode Wakley Black sedangkan nutrien N P menggunakan metode Kjedahl untuk nitrogen dan metode Bray Kurts untuk fosfat Lamun yang ditemukan di Pulau Panjang yaitu Enhalus acoroides Cymodocea serrulata Syringodium isoetifolium Halophila ovalis dan Halodule uninervis Padang lamun didominansi oleh S isoetifolium dengan nilai kepentingan IV 119 90 Estimasi karbon yang diserap E acoroides dan C serrulata adalah 1 58 gC m2 hari dan 0 31 gC m2 hari dan karbon tersimpan yaitu 142 88 gC m2 untuk E acoroides dan 18 91 gC m2 untuk C serrulata Lamun mengandung 42 91 44 08 karbon dan

ABSTRACT
Seagrass bed in Panjang Island Banten Bay has been decreased due to industry activities Seagrass loss was demetrial because seagrass has capacity in uptake and store carbon in greater scale The aims of research were to gain the seagrass community structure and to estimate carbon uptake and store by seagrass Enhalus acoroides and Cymodocea serrulata also it rsquo s nutrient content in Panjang Island Banten Bay Seagrass community was measured using vegetation analysis method Carbon uptake using Zieman leaf marking method The method was examined at 30 seagrass shoots for 21 days Carbon storage in seagrass also in sediment was analyzed using Wakley Black method There were 5 species seagrass found in Panjang Island Enhalus acoroides Cymodocea serrulata Syringodium isoetifolium Halophila ovalis and Halodule uninervis Seagrass was dominated by S isoetifolium with Importance Value IV 119 90 Seagrass condition on Panjang Island was medium high desity 235 03 ind m2 and good coverage 60 16 Estimation of carbon uptake by E acoroides and C serrulata in Panjang Island were 1 58 gC m2 d and 0 31 gC m2 d while carbon storage were 142 88 gC m2 and 18 91 gC m2 respectively Nutrient in seagrass contained of 42 91 44 08 carbon less than 0 91 nitrogent and phospate under 0 23 ppm Conversely nutrient on the sediment has much greater phosphate average 104 54 116 76 ppm and less than 1 carbon and nitrogent "
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
T39372
UI - Tesis Membership  Universitas Indonesia Library
cover
"Telah dilakukan penelitian mengenai struktur komunitas epifiton daun
Enhalus acoroides (L.f.) Royle di padang lamun perairan Pulau Panggang,
Kepulauan Seribu pada tanggal 7--8 Maret 2008. Pengambilan sampel daun
Enhalus acoroides dilakukan dengan metode purposive random sampling di
12 substasiun penelitian. Sampel epifiton pada permukaan daun Enhalus
acoroides diambil dengan metode kerok (scraping method), lalu dicacah
dengan metode subsampel. Hasil penelitian menunjukkan bahwa komposisi
fito-epifiton yang diperoleh sebanyak 3 kelas 44 marga, sedangkan komposisi
zoo-epifiton sebanyak 8 filum 10 kelas. Coscinodiscus dan Nematoda
merupakan epifiton yang paling dominan di lokasi penelitian. Rerata indeks
keanekaragaman fito-epifiton sebesar 1,82, sedangkan zoo-epifiton sebesar
1,72. Nilai indeks kemerataan fito-epifiton tergolong cukup merata (0,53),
sedangkan zoo-epifiton tergolong hampir merata (0,81). Nilai indeks
kesamaan fito-epifiton dan zoo-epifiton di lokasi penelitian tergolong tinggi,
yaitu 0,73 dan 0,67. Sebaran epifiton menunjukkan pola yang mengelompok."
Universitas Indonesia, 2008
S31504
UI - Skripsi Membership  Universitas Indonesia Library
cover
Novita Rina Antarsih
"ABSTRAK
LATAR BELAKANG: Laki-laki dengan penuaan pada umumnya mengalami
penurunan kualitas hidup dan infertilitas, penyebabnya berkaitan dengan degenerasi
sel Leydig akibat akumulasi stres oksidatif sehingga terjadi penurunan kadar
testosteron. Daun Enhalus acoroides dilaporkan mengandung antioksidan yang dapat
menangkal radikal bebas dan fitosterol yang dapat diubah menjadi testosteron.
Penelitian ini dilakukan untuk mengetahui efek ekstrak etil asetat daun lamun
[Enhalus acoroides (L.f.) Royle] terhadap analisis semen, morfologi sel Leydig, dan
stres oksidatif mencit jantan tua
BAHAN DAN CARA KERJA: Sampel berjumlah 32 ekor mencit jantan galur DDY
yang diberikan ekstrak daun Enhalus acoroides selama 14 hari. Mencit dibagi dalam
8 kelompok perlakuan masing masing terdiri dari 4 kali ulangan yang terdiri dari
DK1 = dewasa kontrol 1 (mencit dewasa tanpa perlakuan); DK2=dewasa kontrol 2
(mencit dewasa minyak zaitun); DP1=dewasa perlakuan 1 (mencit dewasa ekstrak 25
mg/KgBB); DP2=dewasa perlakuan 2 (mencit dewasa ekstrak 50 mg/KgBB);
TK1=tua kontrol 1 (mencit tua tanpa perlakuan); TK2=tua kontrol 2 (mencit tua
minyak zaitun); TP1=tua perlakuan 1 (mencit tua ekstrak 25 mg/KgBB); TP2=tua
perlakuan 2 (mencit tua ekstrak 50 mg/KgBB).
HASIL: Peningkatan motilitas dan viabilitas spermatozoa mencit tua pada dosis 50
mg/KgBB, peningkatan morfologi spermatozoa normal pada mencit tua dengan dosis
25mg/KgBB dan penurunan konsentrasi spermatozoa mencit tua pada dosis 25
mg/KgBB. Adanya peningkatan sel Leydig tua pada dosis 25 mg/KgBB
KESIMPULAN: Pemberian ekstrak daun Enhalus acoroides meningkatkan kualitas
spermatozoa. Namun tidak ada perbedaan dalam penundaan degenerasi sel Leydig
dewasa serta tidak ada perbedaan pada tingkat stres oksidatif

ABSTRACT
Background: The men aging process occurs generally due to decreased quality of
life and infertility, the cause associated with Leydig cell degeneration due to
accumulation of oxidative stress resulting in a decrease in testosterone levels. At this
time the administration of synthetic antioxidants is limited because of the risk of
cancer, on the other hand administration of synthetic testosterone cause the cessation
of endogenous testosterone production and long-term risk. Lamun leaves Enhalus
acoroides reported to contain antioxidants which can counteract free radicals and
phytosterols that can be converted into testosterone. Therefore, this study was
conducted to determine effect of ethyl acetate extract of lamun leaves Enhalus
acoroides on semen analysis, Leydig cell morphology, and oxidative stress in old
male mice
Methods: The sample amounted to 32 mice (mus Musculus) strain DDY male given
extract of the leaves of seagrass for 14 days. Mice were divided into eight treatment
groups each consisting of four replications. Four groups are composed of adult mice
which consist of DK1=adult control 1, DK2= adult control 2 (adult mice with olive
oil), DP1= adult treatment 1 (extract 25 mg/KgBW), DP2=adult treatment 2 (extract
50 mg/KgBW). 4 groups male older mice consist of TK1 = old control 1, TK2= old
control 2 (old mice with olive oil), TP1= old treatment 1 (extract 25 mg/KgBW),
TP2= old treatment 2 (extract 50 mg/KgBW).
Results: An increased motility and viability of sperm at doses of 50 mg/KgBW,
increased morphology of sperm normally at doses of 25 mg/KgBW, and decreased
the concentration of sperm at doses of 25 mg/KgBW. An increased in aged Leydig
cells at doses 25 mg/KgBW
Conclusion: The extract of lamun leaves can qualitatively improve sperm, however
not significant in delays degeneration of adult Leydig cells and not significant
decreased levels of oxidative stress in old male mice"
2016
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Hilma Ruwaida Ukhrowi
"Mikroplastik dalam ekosistem laut telah menjadi perhatian global yang berkembang sekama beberapa decade terakhir. Penelitian ini menganalisis kelimpahan dan jenis mikroplastik pada kerang darah Anadara granosa, air dan sedimen dari Teluk Lada, Pandeglang, Banten. Pengambilan sampel kerang darah, air dan sedimen diperoleh dari 3 stasiun yang berbeda. Saluran pencernaan dan organ pernapasan dari kerang darah dihancurkan dengan HNO3 65%, sampel air dan sedimen dimasukkan dalam larutan NaCl jenuh. Hasil penelitian menunjukkan kelimpahan mikroplastik 248,5 ± 3,81 partikel/l dalam air; 169.200 ± 5.184 partikel/Kg dalam sedimen dan 618,8 ± 121,4 partikel/individu dalam kerang. Selain itu, kerang darah dari pasar tradisional sebagai control ditemukan mikroplastik sebanyak 566,7 ± 133,1 partikel/individu. Fiber merupakan jenis mikroplastik yang paling banyak ditemukan pada sampel kerang (59%), air (61%) dan sedimen (58%). Sungai sekitar mengindikasikan sebagai sumber mikroplastik yang bermuara kea rah laut. Stasiun 3 yang berjarak ± 60 m dari sungai memiliki konsentrasi mikroplastik yang lebih tinggi dibandingkan stasiun 1 dan 2 dengan rata-rata 86,17 ± 2,36 partikel/l; 62666,67 ± 1803,7 partikel/Kg dan 720 ± 131,1 partikel/individu.
Microplastic in the marine ecosystem has become a growing global concern over the past decade. This research analyzed the abundance and type of microplastic in blood cockle Anadara granosa, water, and sediment from Lada bay, Pandeglang, Banten. A sampling of the blood cockle, water and sediment were collected from 3 different stations. Digestive tracts and respiratory organs from blood cockle were destructed with HNO3 65%, water and sediment samples are mixed into concentrated NaCl solution. The results showed a microplastic abundance of 248.5 ± 3.81 particle/l in water, 169.200 ± 5.184 particle/Kg in sediment and 618.8 ± 121.4 particles/individuals in cockle. Also besides, blood cockle from traditional markets as control was found 566.7 ± 133.1 particle/individuals microplastic. Fiber is the type of microplastic that was most commonly found in samples of cockles (59%), waters (61%) and sediments (58%). The river was indicated as a microplastic source to the sea. The station 3 in ± 60 m near the river mouth has a higher microplastic concentration with an average of 86,17 ± 2.36 particle/l, 62666.67 ± 1803.7 particle/Kg and 720 ± 131.1 particle/individual, compared to station 1 and 2 which is further away from the river."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Adinda Luna Fausya
"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."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2023
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Ginting, Christyan Natanael Harvey Davika
"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."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2023
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
<<   1 2 3 4 5 6 7 8 9 10   >>