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Maulana Akbar
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2010
S31630
UI - Skripsi Open  Universitas Indonesia Library
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Syaidah Fitri
Abstrak :
ABSTRAK Anadara granosa dan Cerithidea obtusa merupakan sumber makanan yang penting bagi masyarakat di Kabupaten Tanjung Jabung Barat, Jambi. Anadara granosa dan Cerithidea obtusa yang memiliki habitat di kawsan hutan mangrove, dapat menyebabkan organisme tersebut sangat rentan terkontaminasi berbagai bahan pencemar. Salah satu bahan yang dapat mencemari ekosistem mangrove yaitu mikroplastik. Fungsi hutan mangrove sebagai filter biologis alami marine debris yang berasal dari darat dan laut, dapat menyebabkan mikroplastik melimpah di kawasan hutan mangrove. Penelitian ini menggunakan sampel kerang Anadara granosa, keong Cerithidea obtusa, sedimen dan air. Hasil penelitian menunjukkan 100% sampel mengandung mikroplastik. Jenis mikroplastik yang ditemukan pada sampel adalah fiber, film dan fragmen. Fiber adalah jenis mikroplastik yang paling banyak ditemukan pada sampel kerang dan air. Pada sampel kerang, fiber ditemukan sebanyak 180,6 ± 21,22 partikel/individu dan 4,1 ± 0,43 partikel/g kerang. Fiber ditemukan pada sampel air sebanyak 128,3 ± 0,15 partikel/L. Sungai di indikasikan sebagai sumber mikroplastik menuju laut. Stasiun 1 pengambilan sampel yang berada di dekat muara sungai memiliki konsentrasi mikroplastik yang lebih tinggi dengan jumlah 448,3 ± 53,92 mikroplastik/individu, dibandingkan dengan stasiun 3 yang hanya 420,3 ± 42,66 mikroplastik/individu. Berdasarkan uji korelasi, jumlah mikroplastik pada Anadara granosa berkorelasi dengan massa kerang. Korelasi juga ditunjukkan antara jumlah mikroplastik pada air dan kerang, serta mikroplastik pada sedimen dan kerang secara keseluruhan. Hasil penelitian pada keong Cerithidea obtusa ditemukan mikroplastik sebanyak 167 ± 16,01 partikel/individu. Film merupakan jenis mikroplastik yang paling banyak ditemukan pada keong sebanyak 5,4 ± 0,69 partikel/g keong. Film juga merupakan jenis mikroplastik yang paling banyak ditemukan pada sedimen yaitu 3,7 ± 0,28 partikel/g. Berdasarkan stasiun pengambilan sampel, stasiun 1 memiliki jumlah mikroplastik tertinggi 190 ± 37,74 partikel/stasiun. Hasil analisis korelasi menunjukkan bahwa massa Cerithidae obtusa berkorelasi terhadap jumlah mikroplastik yang mencemarinya. Korelasi juga ditunjukkan antara mikroplastik jenis film pada sedimen terhadap mikroplastik jenis film pada keong.
ABSTRACT Anadara granosa and Cerithidea obtusa are important food sources for people in the West Tanjung Jabung District, Jambi. Anadara granosa and Cerithidea obtusa which have habitat in the mangrove forest area, can cause these organisms to be very susceptible to contamination with various pollutants. One ingredient that can pollute mangrove ecosystems is microplastic. The function of mangrove forests as a biological filter for marine debris that originates from land and sea can cause microplastic abundance in the mangrove forest area. This study used samples of Anadara granosa mussels, Cerithidea obtusa snails, sediment and water. The results showed that 100% of the samples contained microplastic. The types of microplastic found in the sample are fiber, film and fragments. Fiber is the type of microplastic that is most commonly found in mussels and water samples. In the mussels sample, fiber was found as much as 180.6 ± 21.22 particles/individual and 4.1 ± 0.43 particles/g mussel. Fiber is found in water samples of 128,3 ± 0.15 particles/L. The river is indicated as a microplastic source to the sea. Station 1 sampling near the river mouth has a higher microplastic concentration with 448.3 ± 53.92 microplastic/indiviual, compared with station 3 which is only 420.3 ± 42.66 microplastic/individual. Based on the correlation test, the number of microplastic in Anadara granosa correlated with the mass of mussel. Correlation is also shown between the number of microplastic in water and mussel, as well as microplastic in sediments and mussels as a whole. The results of the study on the Cerithidea obtusa snail were found microplastic as much as 167 ± 16.01 particles/individual. The film is a type of microplastic which is most commonly found in snails as much as 5.4 ± 0.69 particles/g snail. Film is also the most common type of microplastic found in sediments, namely 3.7 ± 0.28 particles/g. Based on the sampling station, station 1 had the highest microplastic number of 190 ± 37.74 particles/station. The results of the correlation analysis showed that the mass of the Cerithidea obtusa correlated with the number of microplastic contaminants. Correlation was also shown between microplastic types of films in sediments to microplastic types of films in snails.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2019
T52472
UI - Tesis Membership  Universitas Indonesia Library
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Tampubolon, Parlinggoman
2007
T39501
UI - Tesis Membership  Universitas Indonesia Library
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Pasaribu, Marsidy
Abstrak :
Ikan hiu merupakan top predator dalam rantai makanan di laut, sehingga penangkapan ikan hiu secara ekstraktif dikhawatirkan menimbulkan ancaman kelangkaan ikan. Tujuan penelitian ini adalah (a) mendeskripsikan teknologi penangkapan ikan hiu yang digunakan nelayan Indramayu; (b) menganalisis pertumbuhan ikan hiu yang tertangkap; (c) mengkaji kecenderungan CPUE hiu; dan (d) menentukan sejumlah pilihan aksi pengelolaan berkelanjutan perikanan hiu. Penelitian ini menggunakan metode analisis hubungan panjang bobot ikan, analisis pertumbuhan, analisis CPUE, analisis ekonomi dan A'WOT. Analisis teknik mengungkapkan bahwa penangkapan hiu oleh nelayan Indramayu menggunakan gillnet millenium yang merupakan alat tangkap modifikasi dari jaring insang. Analisis pertumbuhan menghasilkan korelasi antara panjang dan bobot hiu per jenis bersifat allometrik negatif, yang artinya pertumbuhan panjang ikan hiu lebih dominan dibandingkan dengan bobotnya. Analisis CPUE mengungkapkan bahwa trendnya selalu meningkat, dimana musim puncak bulan November - Februari, musim sedang bulan Maret - Juli, dan musim paceklik bulan Agustus - Oktober. Sementara analisis A'WOT menghasilkan strategi peningkatan produksi tangkapan utama, optimalisasi armada penangkapan ikan dalam mendukung industrialisasi dan minapolitan, serta peningkatan fasilitas dan pelayanan PPI Karangsong. ...... Sharks are the top predators in the marine food chain, so that extractively shark fishing is feared to cause the threat scarcity of fish. The purposes of this study are (a) describe the technology of fishing shark that is used in Indramayu; (b) analyze the growth of sharks that were caught; (c) examine the trend of CPUE of sharks; and (d) determine a number options for actions of shark fishing sustainability management. Technical analysis reveal that shark fishing by Indramayu's fishermen that use millennium gillnet which is a modification fishing gear of gillnet. Growth analysis produces a correlation between the length and weight of the sharks that is negative allometric, which means the growth in length of sharks is more dominant than the grow thin weight. CPUE analysis reveal that the trend always increase, where the top season on November to February, the medium season on March to July, and the lack season on August to October. While the A'WOT analysis increasing of main fishing,the optimization of the fishing vessel to support industrialization and minapolitan, and increasing of facility and services in the PPI Karangsong.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
T41581
UI - Tesis Membership  Universitas Indonesia Library
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Indria Wahyuni
Abstrak :
ABSTRAK
Penelitian telah dilakukan di kawasan hutan mangrove cagar alam Pulau Dua Serang, Banten pada bulan September hingga November 2011. Tujuan dari penelitian adalah untuk mengetahui produksi dan potensi unsur hara, serata menduga pelepasan unsur hara dari serasah ke lingkungan perairan laut. Pengambilan sampel untuk analisis vegetasi mangrove dilakukan dengan menggunakan metode transek-kuadrat. Guguran serasah ditangkap dengan littertrap dan besarnya serasah yang dilepas ke perairan laut dilakukan pengujian dengan menyaring serasah di aliran air yang menghubungkan antara hutan mangrove dengan perairan laut, untuk produksi potensial unsur hara dari serasah dilakukan analisis unsur hara (C, N, P) di laboratorium. Hasil penelitian menunjukkan bahwa jenis mangrove yang mendominasi yaitu Avicennia marina dan Rhizophora apiculata dengan kerapatan relatif sebesar 51,43% dan 36,19%. Hutan mangrove cagar alam Pulau Dua menghasilkan total rata-rata serasah sebesar 4,05 gr/m2/hari atau 14,78 ton/ha/tahun dengan penyumbang terbesar dari serasah daun. Produksi potensial unsur hara serasah yang dihasilkan sebesar 0,3456 gr-C/m2/hari atau 1,2616 ton-C/ha/tahun, 0,0091 gr-N/m2/hari atau 0,0333 ton-N/ha/tahun, 0,0008 gr-P/m2/hari atau 0,0031 ton-P/ha/tahun. Hutan mangrove cagar alam Pulau Dua turut menyumbangkan serasahnya ke perairan laut sebesar 855,4724 gr/m3/hari.
ABSTRACT
The research has been conducted at mangrove forest of Pulau Dua conservation in Serang town of Banten province from September to November 2011. The purposes of study were to know the production and potential nutrient of mangrove litter and to expect the nutrients released into marine environment. The sample was taken by employing transect-square method. Mangrove litter avalanches were caught by litter-trap and the size was examined by filtering the litter in water flow which connected mangrove forest and marine. The potential nutrient production of mangrove litter was analyzed by administering nutrient analysis of C, N, and P in laboratory. The findings showed that the dominating mangrove types were Avicennia marina and Rhizophora apiculata with 51.43% and 36.19%.of relative density. The mangrove forest of Pulau Dua conservation produced 4.05 gr/m2 /day litters on average total or 14.78 ton/ha/year litters, and the largest contributor was leaves. The production of litters’ potential nutrient achieved 0.3456 gr-C/m2/day or 1.2616 ton-C/ha/year, 0.0091 gr-N/m2/day or 0.0333 ton-N/ha/year, 0.0008 gr- P/m2/day or 0.0031 ton-P/ha/year. Mangrove forest of Pulau Dua conservation also contributed 855.4724 gr.day/m3 litters to marine waters.
2012
T42026
UI - Tesis Membership  Universitas Indonesia Library
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Eldia Anggidenia
Abstrak :
[ABSTRAK
Penelitian mengenai potensi makroalga alami Sargassum polycystum dan makroalga budidaya Eucheuma cottonii dalam menyerap dan menyimpan karbon serta nutrien di Pulau Panjang, Teluk Banten telah dilakukan pada bulan Oktober hingga November 2014. Penelitian bertujuan untuk mengetahui laju penyerapan karbon, kandungan nutrien dan produktivitas primer dari makroalga S. polycystum dan E. cottonii. Lokasi penelitian terletak di bagian hamparan gosong karang dan berlumpur dengan kedalaman 0,5-5 m. Pengamatan pertumbuhan dan laju penyerapan karbon menggunakan metode penandaan thallus pada 30 sampel makroalga setiap hari selama 7 hari. Sampel makroalga selanjutnya dianalisis kandungan nutriennya. Hasil penelitian didapatkan estimasi laju penyerapan karbon S. polycystum dan E. cottonii adalah 0,0081 gC/hari dan 0,0083 gC/hari. Kandungan karbon, nitrogen dan fosfat di S. polycystum adalah sebanyak 6,84%, 1,72% and 0,009% sedangkan kadar karbon, nitrogen dan fosfat di E. cottonii adalah 5,99%, 0,67% dan 0,006%. Berdasarkan analisis statistik dengan uji t, terdapat perbedaan yang signifikan pada laju pertumbuhan, kandungan nitrogen dan fosfat S. polycystum dengan E. cottonii. Sedangkan untuk kandungan karbon tidak terdapat perbedaan yang signifikan antara S. polycystum dengan E. cottonii. Selanjutnya, uji korelasi didapatkan bahwa adanya korelasi antara laju pertumbuhan S. polycystum dan E. cottonii dengan kandungan nitrogen masing- masing sedangkan antara laju pertumbuhan dengan kandungan karbon dan fosfat tidak terdapat korelasi. Produktivitas primer diukur dengan metode botol terang dan botol gelap yang dimodifikasi. Pengukuran produktivitas primer dilakukan pada kedalaman 0,5 m untuk S. polycystum dan 0,1 m untuk E. cottonii. Kandungan oksigen terlarut diukur dengan DO meter. Hasil penelitian didapatkan rata-rata produktivitas primer S. polycystum sebesar 512,99 ± 169,26 mgC/m3/hari dan E. cottonii sebesar 387,88 ± 219,93 mgC/m3/hari.
ABSTRAK
The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.;The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.;The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day., The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.]
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Selvianti Asmara Putri
Abstrak :
[ABSTRAK
Penelitian mengenai peran siput Terebralia dalam mengurai serasah mangrove dan menyimpan karbon telah dilakukan pada bulan November hingga Desember 2013. Hasil penelitian kepadatan, Terebralia palustris memiliki nilai kepadatan yang paling tinggi yaitu 25 individu/m2. Sedangkan Terebralia sulcata memiliki nilai kepadatan yang lebih rendah yaitu 15 individu/m2. Kandungan karbon yang tersimpan dalam tubuh T. palustris berkisar antara 16,27?18,89% dengan rata-rata sebesar 17,45%. Sedangkan karbon yang tersimpan dalam tubuh T. sulcata berkisar antara 15,98?17,62% dengan rata-rata 16,87%. Potensi penyimpanan karbon oleh T.palustris sebesar 4374 gr C/m2 dan T. sulcata, berpotensi menyimpan karbon sebesar 2609 gr C/m2. Berdasarkan analisis statistik, terdapat korelasi antara panjang maupun berat T. palustris terhadap total karbon dengan masing-masing P= 0,001 dan P= 0,002. Sebaliknya, pada T.sulcata tidak terdapat korelasi antara panjang maupun berat cangkangnya terhadap total karbon yang dikandungnya dengan masing-masing P= 0,071 dan P= 0,289. Penelitian mengenai penguraian seresah dilakukan hanya menggunakan Terebralia dewasa yaitu, Terebralia palustris lebih dari 5 cm dan Terebralia sulcata lebih dari 3 cm. Dalam pengambilan data selanjutnya, dibuat 30 titik kuadran dengan ukuran 0,25 x 0,25 m yang ditentukan secara acak. Rata-rata persentase penguraian serasah oleh T. palustris adalah sebesar 3,48% ± 0,18 /hari untuk R. apiculata dan 8,28% ± 0,13 /hari untuk R. stylosa. Sedangkan T. sulcata mengurai serasah rata-rata sebesar 4,07% ± 0,12 /hari untuk R. apiculata dan 4,93 % ± 0,15 /hari untuk R. stylosa. Hasil penelitian juga menunjukkan bahwa tidak ditemukan korelasi antara panjang dan berat T.palustris dengan persentase penguraiannya. Begitu pula dengan T.sulcata, tidak ditemukan korelasi antara berat dengan laju penguraiannya. Sebaliknya, terdapat korelasi antara panjang T. sulcata dengan persentase penguraiannya.
ABSTRACT
Research on the role of Terebralia snails in mangrove leaf litter removal and store carbon was held in November and December 2013. Density of research results, Terebralia palustris has the highest density value of 400 individu/m2 . While Terebralia sulcata has a lower density value is 240 individu/m2. Carbon content stored in the body T. palustris ranged from 16.27 to 18.89 % with an average of 17.45 % . While the carbon stored in the body of T. sulcata ranged from 15.98 to 17.62 % with an average of 16.87 %. Potential carbon storage by T. palustris is 4374 g C/m2, whereas T. sulcata potentially storing carbon at 2609 g C/m2. Measurement of litter removal activity was carried out in mangrove dominated by Rhizophora sp. The research location was located in the intertidal mangrove affected part tide. Research conducted using only adult Terebralia such as, Terebralia palustris more than 5 cm and Terebralia sulcata more than 3 cm. In subsequent data collection, we made 30 points quadrant with 0.25 x 0.25 m size was determined at random. The average percentage of leaf litter removal by T. palustris is equal to 3,48% ± 0,18 / day for R. apiculata and 8,28% ± 0,13/ day for R. stylosa . While T. sulcata litter parse an average of 4,07% ± 0,12 / day for R. apiculata and 4,93 % ± 0,15 / day for R. stylosa . The results also show that there were no correlation was found between the length and weight percentage T.palustris with decay. Similar with T.sulcata, no correlation was found between the weight of the rate of decay. Instead, there is a correlation between the length of T. sulcata with the percentage of decay.;Research on the role of Terebralia snails in mangrove leaf litter removal and store carbon was held in November and December 2013. Density of research results, Terebralia palustris has the highest density value of 400 individu/m2 . While Terebralia sulcata has a lower density value is 240 individu/m2. Carbon content stored in the body T. palustris ranged from 16.27 to 18.89 % with an average of 17.45 % . While the carbon stored in the body of T. sulcata ranged from 15.98 to 17.62 % with an average of 16.87 %. Potential carbon storage by T. palustris is 4374 g C/m2, whereas T. sulcata potentially storing carbon at 2609 g C/m2. Measurement of litter removal activity was carried out in mangrove dominated by Rhizophora sp. The research location was located in the intertidal mangrove affected part tide. Research conducted using only adult Terebralia such as, Terebralia palustris more than 5 cm and Terebralia sulcata more than 3 cm. In subsequent data collection, we made 30 points quadrant with 0.25 x 0.25 m size was determined at random. The average percentage of leaf litter removal by T. palustris is equal to 3,48% ± 0,18 / day for R. apiculata and 8,28% ± 0,13/ day for R. stylosa . While T. sulcata litter parse an average of 4,07% ± 0,12 / day for R. apiculata and 4,93 % ± 0,15 / day for R. stylosa . The results also show that there were no correlation was found between the length and weight percentage T.palustris with decay. Similar with T.sulcata, no correlation was found between the weight of the rate of decay. Instead, there is a correlation between the length of T. sulcata with the percentage of decay.;Research on the role of Terebralia snails in mangrove leaf litter removal and store carbon was held in November and December 2013. Density of research results, Terebralia palustris has the highest density value of 400 individu/m2 . While Terebralia sulcata has a lower density value is 240 individu/m2. Carbon content stored in the body T. palustris ranged from 16.27 to 18.89 % with an average of 17.45 % . While the carbon stored in the body of T. sulcata ranged from 15.98 to 17.62 % with an average of 16.87 %. Potential carbon storage by T. palustris is 4374 g C/m2, whereas T. sulcata potentially storing carbon at 2609 g C/m2. Measurement of litter removal activity was carried out in mangrove dominated by Rhizophora sp. The research location was located in the intertidal mangrove affected part tide. Research conducted using only adult Terebralia such as, Terebralia palustris more than 5 cm and Terebralia sulcata more than 3 cm. In subsequent data collection, we made 30 points quadrant with 0.25 x 0.25 m size was determined at random. The average percentage of leaf litter removal by T. palustris is equal to 3,48% ± 0,18 / day for R. apiculata and 8,28% ± 0,13/ day for R. stylosa . While T. sulcata litter parse an average of 4,07% ± 0,12 / day for R. apiculata and 4,93 % ± 0,15 / day for R. stylosa . The results also show that there were no correlation was found between the length and weight percentage T.palustris with decay. Similar with T.sulcata, no correlation was found between the weight of the rate of decay. Instead, there is a correlation between the length of T. sulcata with the percentage of decay., Research on the role of Terebralia snails in mangrove leaf litter removal and store carbon was held in November and December 2013. Density of research results, Terebralia palustris has the highest density value of 400 individu/m2 . While Terebralia sulcata has a lower density value is 240 individu/m2. Carbon content stored in the body T. palustris ranged from 16.27 to 18.89 % with an average of 17.45 % . While the carbon stored in the body of T. sulcata ranged from 15.98 to 17.62 % with an average of 16.87 %. Potential carbon storage by T. palustris is 4374 g C/m2, whereas T. sulcata potentially storing carbon at 2609 g C/m2. Measurement of litter removal activity was carried out in mangrove dominated by Rhizophora sp. The research location was located in the intertidal mangrove affected part tide. Research conducted using only adult Terebralia such as, Terebralia palustris more than 5 cm and Terebralia sulcata more than 3 cm. In subsequent data collection, we made 30 points quadrant with 0.25 x 0.25 m size was determined at random. The average percentage of leaf litter removal by T. palustris is equal to 3,48% ± 0,18 / day for R. apiculata and 8,28% ± 0,13/ day for R. stylosa . While T. sulcata litter parse an average of 4,07% ± 0,12 / day for R. apiculata and 4,93 % ± 0,15 / day for R. stylosa . The results also show that there were no correlation was found between the length and weight percentage T.palustris with decay. Similar with T.sulcata, no correlation was found between the weight of the rate of decay. Instead, there is a correlation between the length of T. sulcata with the percentage of decay.]
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
T42828
UI - Tesis Membership  Universitas Indonesia Library
cover
Meilisha Putri Pertiwi
Abstrak :
Penelitian komunitas ikan yang tertangkap dengan jaring push net dan kaitannya dengan produksi serasah hutan mangrove di Pulau Panjang, Teluk Banten telah dilakukan pada bulan Oktober?Desember 2014 saat pasang purnama. Tujuan penelitian untuk melihat keanekaragaman dan komunitas ikan serta mengetahui besarnya serasah yang dilepas ke perairan laut dan hubungan antara C, N, P serasah dengan C, N, P Chandidae (famili ikan dominan dalam penelitian). Metode penangkapan ikan dengan push net secara manual dan pemasangan perangkap serasah berupa paralon yang mengarah ke perairan laut di Stasiun 1 dan 2. Hasil tangkapan ikan yaitu 1.770 individu (14 famili, 16 marga, dan 22 spesies). Jumlah terbanyak di Stasiun 1 (1.213) dan bulan November (749). Nilai H? di Stasiun 1 (0,71) dan 2 (0,81) adalah rendah dan sedang, didukung rendahnya nilai E dan tingginya D. Sebanyak 51% ikan yang tertangkap adalah Ambassis gymnocephalus dari famili Chandidae. Ikan komersial yang tertangkap yaitu dari famili Mugilidae dan Serranidae. Mayoritas ikan yang tertangkap juga merupakan ikan penetap sejati (true resident) yaitu berjumlah 1.248 ekor. Biomassa serasah dan Chandidae terbesar yaitu di bulan Desember (219,49 g dan 75,85 g). Sementara Stasiun 1 memberikan biomassa terbesar untuk serasah (162,99 g) dan Stasiun 2 untuk Chandidae (19,14 g). Nilai serasah terbanyak yang dilepas ke laut yaitu pada bulan Desember di Stasiun 1 (47,47 g/m³/s). Nilai koefisien relasi C, N, P serasah dengan C, N, P Chandidae memberikan hasil yang sama yaitu 0,999. Model regresi yang terbentuk berturutturut yaitu Chandidae = 0,889 C Serasah, Chandidae = 11,367 N Serasah, dan Chandidae = 5,407 P Serasah. ...... The research of fish community and its correlation with the production of mangrove forest litter in Panjang Island, Banten Bay had been conducted from October to December 2014 while spring tide. The research?s aim was to know the fish diversity and fish community, to identify mangrove litter?s value to the sea and correlation between C, N, P of mangrove litter and C, N, P of Chandidae (the biggest fish family captured). The method was used push net manually active and also water pipes were put to captured mangrove?s litter to the sea at Station 1 and 2. In total, 1770 species were captured (14 families, 16 genera, and 22 species), the most large number were at Station 1 and in November (1.213 and 749 individus). H? value at Station 1 was low (0,71), meanwhile at Station 2 was moderate (0,81). It supported by low E value. 51% fish captured was Ambassis gymnocephalus from Chandidae family. Economic value fish captured were Mugilidae and Serranidae. Mostly fish captured also were true resident fish (1.248). The biggest biomass of mangrove litter was been at Station 1 (162,99 g), while Chandidae was been at Station 2 (19,14 g). The biggest removed mangrove litter to the sea water was in December and Station 1 (47,47 g/m³/s). The Pearson correlation from C, N, P of mangrove litter and C, N, P of Chandidae gave the same value (0,999). The model of Linear Regression were Chandidae = 0,889 C Mangrove litter, Chandidae = 11,367 N Mangrove litter, dan Chandidae = 5,407 P Mangrove litter.
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2015
T44340
UI - Tesis Membership  Universitas Indonesia Library
cover
Eldia Anggidenia
Abstrak :
[Penelitian mengenai potensi makroalga alami Sargassum polycystum dan makroalga budidaya Eucheuma cottonii dalam menyerap dan menyimpan karbon serta nutrien di Pulau Panjang, Teluk Banten telah dilakukan pada bulan Oktober hingga November 2014. Penelitian bertujuan untuk mengetahui laju penyerapan karbon, kandungan nutrien dan produktivitas primer dari makroalga S. polycystum dan E. cottonii. Lokasi penelitian terletak di bagian hamparan gosong karang dan berlumpur dengan kedalaman 0,5-5 m. Pengamatan pertumbuhan dan laju penyerapan karbon menggunakan metode penandaan thallus pada 30 sampel makroalga setiap hari selama 7 hari. Sampel makroalga selanjutnya dianalisis kandungan nutriennya. Hasil penelitian didapatkan estimasi laju penyerapan karbon S. polycystum dan E. cottonii adalah 0,0081 gC/hari dan 0,0083 gC/hari. Kandungan karbon, nitrogen dan fosfat di S. polycystum adalah sebanyak 6,84%, 1,72% dan 0,009% sedangkan kandungan karbon, nitrogen dan fosfat di E. cottonii adalah 5,99%, 0,67% dan 0,006%. Berdasarkan analisis statistik dengan uji t, terdapat perbedaan yang signifikan pada laju pertumbuhan, kandungan nitrogen dan fosfat S. polycystum dengan E. cottonii. Sedangkan untuk kandungan karbon tidak terdapat perbedaan yang signifikan antara S. polycystum dengan E. cottonii. Selanjutnya, uji korelasi didapatkan bahwa adanya korelasi antara laju pertumbuhan S. polycystum dan E. cottonii dengan kandungan nitrogen masingmasing sedangkan antara laju pertumbuhan dengan kandungan karbon dan fosfat tidak terdapat korelasi. Produktivitas primer diukur dengan metode botol terang dan botol gelap yang dimodifikasi. Pengukuran produktivitas primer dilakukan pada kedalaman 0,5 m untuk S. polycystum dan 0,1 m untuk E. cottonii. Kandungan oksigen terlarut diukur dengan DO meter. Hasil penelitian didapatkan rata-rata produktivitas primer S. polycystum sebesar 10,259 ± 3,385 mgC/g/hari dan E. cottonii sebesar 7,757 ± 4,398 mgC/g/hari.;The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day, The research about the potency of wild macroalgae Sargassum polycystum and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day]
2015
T43623
UI - Tesis Membership  Universitas Indonesia Library
cover
Eka Sari Nurhidayati
Abstrak :
ABSTRAK
Penelitian di ekosistem mangrove Tanjung Lesung, Banten bertujuan untuk mendapatkan informasi tentang struktur dan komposisi vegetasi; potensi produksi dan kecepatan dekomposisi serasah, dan produksi C,N, P; serta kemampuan menyimpan dan menyerap karbon mangrove. Struktur dan komposisi vegetasi diukur dengan transek kuadrat dengan total luasan pengamatan 3300 m2. Produksi serasah dihitung menggunakan perangkap serasah ukuran 1x1 m2. Laju dekomposisi serasah diukur selama 84 hari dengan pengamatan setiap 14 hari sekali. Cadangan karbon diestimasi dengan persamaan allometrik. Total spesies vegetasi yang ditemukan di areal penelitian adalah 7 spesies dari 6 famili. Vegetasi tingkat pohon dan belta didominasi oleh Lumnitzera racemosa dengan kerapatan 670 pohon/ha dan 2252 pohon/ha. Produksi serasah sebesar 1,571 ± 0,924 g/m2/hari, tersusun atas daun 1,563 ± 0,916 gr/m2/hari (99,50%) dan ranting sebesar 0,008 ± 0,048 gr/m2/hari (0,50%). Laju dekomposisi serasah sebesar 0,09 ± 0,07 gr/hari dengan persentase serasah daun yang terdekomposisi/hilang sebesar 47,9 ± 15,5%. Potensi unsur hara dari serasah daun sebesar 0,025 ± 0,002 g C/m2/hari; dan 0,001 ± 0,0006 g N/m2/hari; serta 0,0003 ± 0,00026 g P/m2/hari. Rata-rata unsur karbon yang terlepas dari serasah daun selama proses dekomposisi sebesar 5,36 ± 2,24%, sementara untuk nitrogen sebesar 0,009 ± 0,008%, dan total phosfat sebesar 0,0012 ± 0,00038%. Biomassa dan kandungan karbon di atas dan bawah permukaan tanah sebesar 24,29 ton/ha dengan 11,4 ton C/ha, kandungan karbon tanah sebesar 127,88 ton C/ha. Total cadangan karbon mangrove di Tanjung Lesung sebesar 139,296 ton C/ha, sebesar 91,8% cadangan karbon tersimpan dalam tanah. Kemampuan menyerap CO2 atmosfer sebesar 24,522 Ton CO2/ha untuk tingkat pohon dan 4,79 Ton CO2/ha untuk tingkat anakan
ABSTRACT
Research in mangrove ecosystem of Tanjung Lesung, Banten aims to obtain information of vegetation structure and composition; production, decomposition rates, nutrient contribution of mangrove litter; and potential carbon stocks. Structure and composition of vegetation measured by quadrant method, with total observation area is 3300 m2. Litter production was collected using the litter-trap (1 x 1m) during two months. Litter decomposition rates were measured for 84 days with observations every 14 days. Carbon stock are estimated by allometric equation.The diversity of mangrove vegetation consists of 7 species from 6 families. At the tree level and sapling, vegetation is dominated by Lumnitzera racemosa has the density around 670 tree/ha and 2252 tree/ha. Litter production is about 1,571 ± 0,924 g/m2/day, that consist of leaf 1,563 ± 0,916 gr/m2/day (99,50%) and stalk 0,008 ± 0,048 gr/m2/day (0,50%). Litter decomposition rate is about 0,09 ± 0,07 gr/day with the percentage of litter decomposed of 47,9 ± 15,5%. The potential of litter nutrient are 0,025 ± 0,02 g C/m2/day; 0,001 ± 0,0006 g N/m2/day; and 0,0003 ± 0,00026 g P/m2/day. Carbon average that was detached from litter during decomposition is 5,36 ± 2,24%, while for nitrogen is 0,009 ± 0,008%, and total phosphate is 0,0012 ± 0,00038%. Biomass and carbon stock above and below the ground surface are 24,29 ton/ha with 11,4 tons C/ha. Carbon stock of sedimen mangrove is 127,88 ton C/ha. Total carbon stock of mangrove in Tanjung Lesung, Banten is about 139,296 ton C/ha, where 91,8% of them stored in sediment mangrove. The ability to absorb CO2 in atmosphere is 24,522 tons CO2/ha for trees level and 4,79 tons CO2/ha for sapling
2016
T46072
UI - Tesis Membership  Universitas Indonesia Library
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