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"Telah dilakukan penelitian mengenai pengaruh perbedaan intensitas cahaya terhadap kelimpahan zooxanthella pada karang branching (Acropora sp.) dan digitate (Montipora digitata) di perairan Pulau Pari, Kepulauan Seribu pada tanggal 4--8 April 2012. Penelitian dilakukan dengan cara menutup ujung cabang masing-masing koloni karang branching dan digitate dengan plastik terang (intensitas cahaya 58 μE/m2s), plastik setengah gelap (intensitas cahaya 26 μE/m2s), dan plastik gelap (intensitas cahaya 0 μE/m2s) selama 4 hari, sementara kontrol tidak ditutup dengan plastik. Zooxanthella dalam fragmen karang dikeluarkan dengan cara dipanaskan menggunakan hot plate. Data hasil penelitian ditabulasi dan dianalisis menggunakan uji ANAVA satu arah. Hasil menunjukkan penurunan kelimpahan zooxanthella pada perlakuan di karang branching dengan pengaruh intensitas cahaya yang berbeda nyata (0,001 pada P < 0,05), dan peningkatan kelimpahan zoxanthella pada perlakuan di karang digitate dengan pengaruh intensitas cahaya yang tidak berbeda nyata (0,316 pada P < 0,05).

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Effects of light intensity variations to the abundance of zooxanthellae at branching (Acropora sp.) and digitate (Montipora digitata) coral colonies, were studied at Pari Island, Kepulauan Seribu in April 4--8th, 2012. Tips of each branching and digitate coral colonies were covered with bright plastic bags (light intensity 58 μE/m2s), half-dark plastic bags (light intensity 26 μE/m2s), and dark plastic bags (light intensity 0 μE/m2s) for 4 days, while the control uncovered. Zooxanthellae inside coral fragments were expelled by heating using hot plate. Data was tabulated and analyzed using one way ANAVA test. The result showed decreasing of zooxanthellae abundance at branching coral treatment with significant effect of light intensity (0,001 at P < 0,05), and there was increasing of zooxanthellae abundance at digitate coral treatment with unsignificant effect of light intensity (0,316 at P < 0,05)."

"Telah dilakukan penelitian mengenai pengaruh perbedaan intensitas cahaya terhadap kelimpahan zooxanthella pada karang branching (Acropora sp.) dan digitate (Montipora digitata) di perairan Pulau Pari, Kepulauan Seribu pada tanggal 4--8 April 2012. Penelitian dilakukan dengan cara menutup ujung cabang masing-masing koloni karang branching dan digitate dengan plastik terang (intensitas cahaya 58 μE/m2s), plastik setengah gelap (intensitas cahaya 26 μE/m2s), dan plastik gelap (intensitas cahaya 0 μE/m2s) selama 4 hari, sementara kontrol tidak ditutup dengan plastik. Zooxanthella dalam fragmen karang dikeluarkan dengan cara dipanaskan menggunakan hot plate. Data hasil penelitian ditabulasi dan dianalisis menggunakan uji ANAVA satu arah. Hasil menunjukkan penurunan kelimpahan zooxanthella pada perlakuan di karang branching dengan pengaruh intensitas cahaya yang berbeda nyata (0,001 pada P < 0,05), dan peningkatan kelimpahan zoxanthella pada perlakuan di karang digitate dengan pengaruh intensitas cahaya yang tidak berbeda nyata (0,316 pada P < 0,05).

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Effects of light intensity variations to the abundance of zooxanthellae at branching (Acropora sp.) and digitate (Montipora digitata) coral colonies, were studied at Pari Island, Kepulauan Seribu in April 4--8th, 2012. Tips of each branching and digitate coral colonies were covered with bright plastic bags (light intensity 58 μE/m2s), half-dark plastic bags (light intensity 26 μE/m2s), and dark plastic bags (light intensity 0 μE/m2s) for 4 days, while the control uncovered. Zooxanthellae inside coral fragments were expelled by heating using hot plate. Data was tabulated and analyzed using one way ANAVA test. The result showed decreasing of zooxanthellae abundance at branching coral treatment with significant effect of light intensity (0,001 at P < 0,05), and there was increasing of zooxanthellae abundance at digitate coral treatment with unsignificant effect of light intensity (0,316 at P < 0,05)."

"Penelitian mengenai kelimpahan zooxanthellae pada karang Fungia telah dilakukan di Pulau Karang Bongkok pada Oktober 2013. Penelitian bertujuan melihat pengaruh kedalaman dan parameter lingkungan di tiap kedalaman terhadap kelimpahan zooxanthellae pada Fungia. Penelitian dilakukan dengan mengambil fragmen karang berukuran 4,5-7,5 cm pada kedalaman 3-15 meter. Zooxanthellae dikeluarkan dari fragmen karang Fungia dengan cara dipanaskan pada suhu hingga 85o C selama sekitar 15 menit. Zooxanthellae kemudian diamati di bawah mikroskop dengan perbesaran 10 x 10. Hasil penghitungan menunjukkan kelimpahan rata- rata zooxanthellae sebesar ± 129.414 sel/cm2 -- 525.403 sel/cm2. Hasil penelitian menunjukkan bahwa kelimpahan zooxanthellae tidak mengalami kecenderungan naik ataupun turun seiring bertambahnya kedalaman. Hasil penelitian juga menunjukkan adanya pengaruh ukuran diameter karang Fungia dengan kelimpahan zooxanthellae. Berdasarkan hasil Analisis Komponen Utama (AKU), kelimpahan zooxanthellae tertinggi terdapat pada kedalaman yang dicirikan oleh parameter lingkungan DO dan salinitas.

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The study abundance of zooxanthellae in Fungia corals was conducted in Karang Bongkok Island, October 2013. This study was aimed to determine the effect of an environmental factor difference at each depth in zooxanthellae's abundance in Fungia. Fragments Fungia with 4,5-7,5 cm length collected at 3-15 meters depth. Zooxanthellae expelled from the Fungia coral fragments by heating at temperatures up to 850C for about 15 minutes. Zooxanthellae were observed under a microscope with 10 x 10 magnification. The result obtained average abundance of zooxanthellae at 129.414 sel/cm2-525.403 sel/cm2. The results of this study indicated that the abundance of zooxanthellae did not experience the increase or decrease tendency with the increasing depth. The results also showed the influence of Fungia coral’s diameter to the abundance of zooxanthellae. Based on Parameter Component Analysis (PCA), the high number of zooxanthellae were found at depths which characterized by DO and salinity."

"Tingginya perubahan fisik kelautan yang terjadi dalam kurun waktu 10 tahun terakhir di Gugusan Pulau Pari berpengaruh terhadap degradasi terumbu karang di dalamnya. Gugusan Pulau Pari merupakan kumpulan dari pulau-pulau sangat kecil yang termasuk tipe pulau karang timbul dan pulau daratan rendah (low islands), terdiri dari Pulau Pari, Kongsi, Tengah, Kudus dan Burung pada posisi 50 51? 28?-50 51? 32? LS dan 1060 37? 00?-1060 41? 20? BT. Penelitian ini dilakukan melalui interpretasi citra Landsat dengan formula Lyzenga, dan variabel fisik kelautan seperti suhu, salinitas, kecerahan, arus dan sedimentasi serta variabel sosial dan ekonomi dipadukan dengan survei lapangan. Penelitian ini mengungkapkan pola sebaran terumbu karang sehat dan terdegradasi serta keterkaitan faktor fisik perairan dan sosial ekonomi terhadap degradasi terumbu karang. Analisa yang digunakan adalah analisa spasial dengan variabel fisik perairan dan kondisi sosial ekonomi. Penelitian ini menunjukkan bahwa persebaran terumbu selama kurun waktu 2004 hingga 2014 tidak mengalami perubahan. Namun, persebaran terumbu karang yang terdegradasi mengalami peningkatan. Jumlah terumbu karang mati lebih tinggi dibandingkan populai terumbu karang yang sehat. Faktor yang berpengaruh terhadap degradasi terumbu karang yaitu tingginya kualitas fisik perairan berupa suhu, kecerahan, arus permukaan air laut serta kedangkalan perairan dengan kedalaman kurang dari 3 meter di atas permukaan laut. Faktor lain yang juga mempengaruhi degradasi terumbu karang yaitu meningkatnya aktivitas bahari dan semakin ramainya lalu lintas perairan.

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The high physical changes that occur in the ocean over the last 10 years in the Group of Pari Island effect on coral reef degradation in it. Group of Pari Island is a collection of very small islands that include the type of coral islands and islets arise lowland (low islands), consisting of Pari Island, Kongsi, Tengah, Kudus and Burung in position 50 51? 28?-50 51? 32? South Latitude and 1060 37? 00?-1060 41? 20? East Longitude. This research was conducted through the interpretation of Landsat imagery with formula Lyzenga and marine physical variables such as temperature, salinity, brightness, currents and sedimentation as well as social and economic variables combined with field surveys. This study reveals the distribution pattern of healthy and degraded coral reefs as well as linkages to physical factors and socio-economic waters to coral reef degradation. The analysis used is a spatial analysis of the physical variables waters and socio-economic conditions. This study shows that reefs spread over the period 2004 to 2014 has not changed. However, the spread of degraded reef has increased. Number of dead coral reefs is higher than populai healthy coral reefs. Factors affected to the degradation of coral reefs in the high physical quality of water in the form of temperature, brightness, sea currents and the shallowness of the waters with a depth of less than 3 meters above sea level. Other factors that also affected the degradation of coral reefs are increasing maritime activity and traffic increasingly crowded waters."

"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.

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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. "

"Pulau Pari adalah gugusan dari Kepulauan Seribu yang terletak diantara 5⁰ 50' LS-05⁰ 52' LS dan 106⁰ 34' BT-106⁰ 38' BT. Pulau Pari yang memiliki potensi akan wisata, sehingga perlu adanya pengelolaan mengenai hal tersebut. Berdasarkan hal tersebut, maka perlu adanya analisis mengenai terumbu karang, daya dukung lingkungan, perilaku wisatawan, dan usulan mengenai skenario pengelolaan wisata selam. Pendekatan riset yang dilakukan pada penelitian ini menggunakan mix method (kuantitatif dan kualitatif). Analisis yang digunakan pada riset ini adalah kondisi terumbu karang, data kelimpahan ikan karang, kesesuaian lahan perairan, daya dukung kawasan, dan analisis perilaku wisatawan. Hasil kondisi terumbu karang di Pulau Pari pada Stasiun 1 dan 4 adalah kategori sangat buruk, Stasiun 2 kategori baik, dan Stasiun 3,5, dan 6 termasuk dalam kategori buruk. Hasil pada kesesuian wisata pada perairan Pulau Pari termasuk dalam kategori S2 dengan pengertian termasuk dalam kategori sesuai. Pada kegiatan wisata selam, maka akan sangat terkait dengan wisatawan. Pada analisis perilaku wisatawan sebanyak 50 responden, mendapatkan hasil bahwa 58% wisatawan pernah melakukan perilaku destruktif. Hasil Analisis menunjukkan bahwa wisata selam sendiri menyumbang 7,26% kerusakan terumbu karang. Daya dukung wisata berfungsi untuk menetapkan jumlah wisatawan, dimana didapatkan hasil 22 orang/hari dan usulan dibagi menjadi 3 zona pemanfaatan yaitu : zona inti, zona penyangga, dan zona pemanfaatan.

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Pari Island is a cluster of the Thousand Islands, located between 5⁰ 50' LS-05⁰ 52' LS dan 106⁰ 34' BT-106⁰ 38' BT. Pari Island which has the potential to be tourist, so it needs the management about it. Based on this, the need for analysis of the coral reefs, the carrying capacity of the environment, tourist behavior, and proposals regarding the dive tourism management scenarios. Approach to research carried out in this study using a mixed method (quantitative and qualitative). The analysis used in this research is the condition of coral reefs, reef fish abundance of data, land suitability waters, the carrying capacity of the region, and the analysis of tourist behavior. The result of the condition of coral reefs in Pulau Pari at Station 1 and 4 is a very bad category, Station 2 good category, Station 3,5, 6 stations included in the category of bad. The yield on the suitability travel in Pari Island waters included in the S2 category with the understanding included in the appropriate category. At the dive tourism activities, it will be associated with tourists. In rating the behavior analysis of 50 respondents, get the result that 58% of tourists ever do destructive behavior. Analysis showed that the dive tourism alone accounts for 7.26% of coral reef damage. Tourism carrying capacity is used to set the number of tourists, which showed 22 people/day and the proposed utilization are divided into 3 zones, namely: core zone, buffer zone, and the zone of utilization. At the dive tourism activities, it will be associated with tourists. In rating the behavior analysis of 50 respondents, get the result that 58% of tourists ever do destructive behavior. Analysis showed that the dive tourism alone accounts for 7.26% of coral reef damage. Tourism carrying capacity is used to set the number of tourists, which showed 22 people/day and the proposed utilization are divided into 3 zones, namely: core zone, buffer zone, and the zone of utilization. At the dive tourism activities, it will be associated with tourists. In rating the behavior analysis of 50 respondents, get the result that 58% of tourists ever do destructive behavior. Analysis showed that the dive tourism alone accounts for 7.26% of coral reef damage. Tourism carrying capacity is used to set the number of tourists, which showed 22 people/day and the proposed utilization are divided into 3 zones, namely: core zone, buffer zone, and the zone of utilization."

"ABSTRAKPenelitian mengenai Struktur Komunitas Diatom dari Dinoflagellata di perairan sekitar Pulau Pari, yang termasuk wilayah Kepulauan Seribu, telah dilakukan pada bulan Juni 1997, Oktober 1997, dan Januari 1998. Pengambilan sampel dilakukan di 8 (delapan) stasiun. Sampling menggunakan jaring Kitahara bentuk kerucut panjang 1 m, diameter 31 mikrometer dan mata jarinq 20 mikrometer, pengambilan sampel dilakukan secara horizontal. Sampel yang tersaring ditetesi formalin 4 %, dicacah dibawah- mikroskop perbesaran 40-,100 kali. Parameter lingkungan yang diamati adalah suhu, salinitas dan curah hujan.Dari hasil identifikasi ditemukan sebanyak- 68 jenis, 26 marga dan 17 suku. Kelompok diatom melimpah dengan jumlah anggota 31 jenis, 20 marga, dan 14 suku. Frekuensi kehadiran tertinggi ditemukan pada Chaetoceros decipiens (100 %), Thalassiothrix nitzschioides (87,50 %) dan Thrachyneis debyi (75,00 %). Chaetoceros decipiens paling melimpah pada bulan Januari 1998 dengan kepadatan 26.693,3 sell]. Thalassiothrix nitzschioides melimpah pada bulan Juni 1997 dengan kepadatan sel 889,9 sell]. Pada bulan Oktober 1997 Thrachyneis debyi melimpah dengan kepadatan 817,5 sell]. Keanekaragaman jenis diatom berkisar antara-0,31 - 0,73, kemerataan jenis 0,23 - 0,41, kekayaan jenis 0,43 - 0,91.Kelompok dinoflagellata mempunyai jumlah anggota 37 jenis, 6 marga, dan 2 suku. Frekuensi kehadiran tertinggi ditemukan pada Ceratium furca (62,50 %), Prorocentrum micans. (25,00%) dan Peridinium depressum (37,50 %). Ceratium furca melimpah pada bulan Juni 1997 dengan kepadatan 130,4 sell. Prorocentrum micans melimpah pada- bulan Oktober 1997 dengan kepadatan 10,3 sell. Peridinium depressum melimpah pada bulan Januari 1998 dengan kepadatan 33,1 sell: Pengaruh musim turut menentukan komposisi dan kelimpahan jenis diatom dan dinoflagellata.Hasil analisis kluster diatom dengan batas keputusan 50 % dari ke tiga musim pengamatan membentuk 3 --6. kelompok komunitas; diperkirakan karena sangat bervariasinya jumlah jenis di stasiun-stasiun penelitian. Hasil analisis kluster antar stasiun untuk dinoflagellata bulan Juni- 1997, Oktober 1997, dan Januari 1998 tidak membentuk pengelompokan (7 kelompok / komunitas) sehingga terpisah satu-sama lain, kecuali- St4 (Tanah. Miring)-dan- St 5-( Kelapa Tinggi) (Juni 1997), Stasiun 2 ( Goba Kuanji) dan St 7 (Goba Labangan Pasir) (Oktober 1-997) dan St 6 ( Pari Rataan- Terumbu} dan St 8- ( Goba Chris) (Januari 1998).

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ABSTRACT

Diatoms and Dinoflagellates are dominant groups- of marine- phytoplankton, and are important in the marine food chain. Diatoms and Dinoflagellates live in various habitats, freshwater, estuarine and marine; Information about diatoms in Indonesia is especially from reports of Lebour(1925) ; Delsman (1939) ; Zeitzschel (1978) ; and Taylor (1979). information concerning diatoms and dinoflagellates in Pari Islands waters (estuarine) is very limited. The water of Pari Islands is- a unique- ecosystem. This area- has various living organism i.e. diatoms and dinoflagellates. A study on the community Structure of Diatoma and Dinoflagellate in Pari Islands Waters. was conducted in June 1997, October 1997 and January 1998.

The aim of the study is to find out the species diversity and the fluctuation of diatoms and dinoflagellates communities , the relationship of the community structure of diatoms and dinoflagellates related the environmental factors in Pari Islands waters at three seasons.

Sixty-eight species belonging to twenty-six families were recorded. They consist of 31 species of diatoms, 20 families ,14 genus and 37 species of dinoflagellates, 6 families and 2 genus. Two species showed high frequency of occurrence and abundance at dry seasons and wet seasons i.e. Thalassiothrix nitzschioides and Chaetoceros decipiens, Ceratium furca, and Prorocentrum emarginatum at dry seasons and wet seasons. This indicated that two spesies were common and more widely distributed than others. The highest diversity, richness and evennes indices of diatom spesies were found in Kelapa Tinggi (St 5) at three seasons

Cluster analysis resulted one group throughout the study in June 1997, October 1-997 and- January- 1-998. Stations 1.,2,8;5,4,7 had closer relationship than Station 3 and St 6. The- conditions of Pari Islands- waters showed. that the- salinity ranged from 30 - 33 ° loq- the- temperature. ranged from .27 - -29 °C, and the. rainfall ranged from 25,4 - 494 milimetre/month.

The Environmental conditions. were- also monitored. Result showed- than the environmental conditions of the Pari Islands water were still appropriate for nursery grounds. of several. biota- and suitable for spawning ground- of certain spesies . The great varieties of species (phytoplankton) i.e : diatoms and dinoflagellates in- the- Pari Islands- water show that this ecosystem its very productive site for marine biota."

"[Telah dilakukan penelitian deteksi gen alkana monooksigenase (alkB) pada bakteri laut di Perairan Pulau Pari Kepulauan Seribu, Jakarta. Penelitian bertujuan untuk memperoleh isolat bakteri yang membawa gen alkB dari perairan Pulau Pari Kepulauan Seribu, Jakarta. Penelitian dilakukan selama 5 bulan sejak bulan Februari 2015 sampai bulan Mei 2015 dengan metode Polymerase Chain Reaction (PCR) pada 81 isolat yang telah diremajakan. Isolat bakteri diremajakan menggunakan medium marine agar (MA) dengan metode kuadran streak. Hasil deteksi mendapatkan satu isolat yang membawa gen alkB yaitu isolat nomor 71. Hasil amplifikasi isolat 71 menghasilkan pita DNA dengan ukuran 550 pb. Pita DNA dengan panjang 550 pb merupakan gen alkB. Hasil dari sekuensing menunjukkan bahwa Isolat 71 adalah dari spesies Bordetella sp.;Detection gene alkane monooxygenases (alkB) from marine bacteria in Pari Island Kepulauan Seribu, Jakartahas been researched. The research aims to obtain bacterial isolates that carry the gene alkBin Pari Island Kepulauan Seribu, Jakarta. The study was conducted during the five months from February 2015 to May 2015 with a method of Polymerase Chain Reaction (PCR) from 81 isolates that have been rejuvenated. Bacterial isolates rejuvenated using marine medium agar (MA) with the quadrant streak method. Obtain detection results of the isolates that carry the gene which isolates number 71. alkB amplification results of 71 isolates produce ribbon DNA with size 550 bp. DNA tape with a length of 550 bp is alkB gene.The results of sequencing showed that the isolate 71 is Bordetella sp.;Detection gene alkane monooxygenases (alkB) from marine bacteria in Pari Island Kepulauan Seribu, Jakartahas been researched. The research aims to obtain bacterial isolates that carry the gene alkBin Pari Island Kepulauan Seribu, Jakarta. The study was conducted during the five months from February 2015 to May 2015 with a method of Polymerase Chain Reaction (PCR) from 81 isolates that have been rejuvenated. Bacterial isolates rejuvenated using marine medium agar (MA) with the quadrant streak method. Obtain detection results of the isolates that carry the gene which isolates number 71. alkB amplification results of 71 isolates produce ribbon DNA with size 550 bp. DNA tape with a length of 550 bp is alkB gene.The results of sequencing showed that the isolate 71 is Bordetella sp., Detection gene alkane monooxygenases (alkB) from marine bacteria in Pari Island Kepulauan Seribu, Jakartahas been researched. The research aims to obtain bacterial isolates that carry the gene alkBin Pari Island Kepulauan Seribu, Jakarta. The study was conducted during the five months from February 2015 to May 2015 with a method of Polymerase Chain Reaction (PCR) from 81 isolates that have been rejuvenated. Bacterial isolates rejuvenated using marine medium agar (MA) with the quadrant streak method. Obtain detection results of the isolates that carry the gene which isolates number 71. alkB amplification results of 71 isolates produce ribbon DNA with size 550 bp. DNA tape with a length of 550 bp is alkB gene.The results of sequencing showed that the isolate 71 is Bordetella sp.]"

"Telah dilakukan penelitian tentang Dinoflagellata Epifitik pada Lamun Enhalus acoroides di rataan terumbu Pulau Pari, Kepulauan Seribu pada Bulan April 2012. Penelitian dilakukan dengan mengoleksi daun lamun Enhalus acoroides dari rataan terumbu, kemudian dilakukan pengocokan dan penyaringan dengan saringan bertingkat (125µm dan 20µm). Dinoflagellata epifitik yang ditemukan berjumlah 8 jenis, yaitu Gambierdiscus toxicus, Ostreopsis lenticularis, O. ovata, O. siamensis, Prorocentrum concavum, P. emarginatum, P. lima, dan P. rhathymum. Enam dari jenis yang ditemukan merupakan Dinoflagellata epifitik yang berpotensi menyebabkan ciguatera. Kepadatan tertinggi Dinoflagellata epifitik terdapat pada stasiun 8 (577 sel/cm2) yang terletak pada bagian selatan pulau, sedangkan kepadatan terendah terdapat pada stasiun 1 (22 sel/cm2) yang terletak pada bagian barat pulau. Berdasarkan uji korelasi Spearman, parameter lingkungan perairan yang memengaruhi kepadatan Dinoflagellata epifitik saat penelitian adalah kecepatan arus dan oksigen terlarut (DO).

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Research on epiphytic Dinoflagellates on seagrass Enhalus acoroides had already conducted in Pari Island waters, Seribu Islands on April 2012. Research was carried out by collecting Enhalus acoroides leaves, which were shaken vigorously and the seawater filtered through a series of sieves (125µm and 20µm). Eight epiphytic Dinoflagellates were found, they were Gambierdiscus toxicus, Ostreopsis lenticularis, O. ovata, O. siamensis, Prorocentrum concavum, P. emarginatum, P. lima, and P. rhathymum. Six of the spesies found were epiphytic Dinoflagellates that potentially caused ciguatera. The highest density value of epiphytic Dinoflagellates was found at station 8 (577 sel/cm2) which located on the southern part of island and the lowest was at station 1 (22 sel/cm2) which located on the western part of island. Based on Spearman corellation test, the environmental factors which influenced the abundance of epiphytic Dinoflagellates at sampling time were current velocity and dissolved oxygen (DO)."

"Telah dilakukan penelitian mengenai komunitas Gastropoda pada ekosistem mangrove di Gugus Pulau Pari, Kepulauan Seribu pada bulan Juli 2010. Penelitian bersifat deskriptif-analitik dan bertujuan untuk mengetahui komposisi, kepadatan, keanekaragaman, kemerataan, dominansi, penyebaran, kesamaan, dan korelasinya dengan parameter abiotik. Penelitian dilakukan dengan purposive sampling dan menggunakan metode transek kuadrat di tiga pulau, yaitu Pulau Pari, Pulau Tengah, dan Pulau Burung. Parameter abiotik yang diukur meliputi, suhu, salinitas, kedalaman, dan kandungan bahan organik. Sebanyak 33 spesies Gastropoda ditemukan di ekosistem mangrove Gugus Pulau Pari. Gastropoda yang ditemukan dibagi menjadi tiga kelompok, yaitu 6 jenis diantaranya merupakan moluska asli mangrove, 2 jenis diantaranya moluska fakultatif, dan 25 jenis sisanya merupakan moluska pengunjung. Kepadatan Gastropoda tertinggi terdapat di Pulau Tengah (112,48 ind/m2) dan terendah di Pulau Burung (66,19 ind/m2). Terebralia sulcata merupakan Gastropoda dengan kepadatan tertinggi, yaitu 31,6 ind/m2. Indeks keanekaragaman jenis tertinggi terdapat di Pulau Burung (1,978) dan terendah di Pulau Pari (1,497). Gastropoda di ekosistem mangrove Gugus Pulau Pari cukup merata dengan pola sebaran mengelompok dan tidak ada spesies yang mendominasi. Indeks kesamaan terbesar terdapat pada substasiun P1 dan T1 (92,74%), sedangkan terendah terdapat pada T3 dan B8 (14,65%). Kandungan lumpur dan bahan organik memiliki korelasi positif terhadap kepadatan Gastropoda.

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AbstractThe research had been done for structure community of Gastropods at mangrove ecosystem in complex Pari's Island, Seribu Islands on July 2010. The purpose for this particular descriptive analysis research was to know the composition, density, diversity, evenness, domination, distribution, similarity and it?s correlation with abiotic parameters. Samples were taken by using purposive sampling and transect square method on three islands, namely Pari Island, Tengah Island and Burung Island. The abiotic parameters were measured (temperature, salinity, depth, and organic matter). We found 33 species of gastropods, which they were divided into three groups, namely native (6), facultative (2), and visitor (25) species molluscs of mangrove, respectively. The highest density was found in the Tengah island (112,48 ind/m2) and the lowest in the Burung Island (66,19 ind/m2). Terebrealia sulcata was Gastropod with the highest density (31,6 ind/m2). The highest diversity index occured at Burung Island (1,978) and the lowest at Pari Island (1,497). In general the distribution of Gastropods at mangrove ecosystem in complex Pari?s Island was clumped distribution pattern and no species domination. The highest similarity index found in substation P1 and T1 (92,74%), while the lowest found in T3 and B8 (14,65%). The mud and total organic matter (TOM) has a positive correlation to Gastropods density. "