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Abstrak :
Penelitian mengenai struktur komunitas Polychaeta di lima muara sungai Teluk Jakarta (Muara Karang, Muara Baru, Muara Sunda Kelapa, Muara Tiram, dan Muara Tawar) telah dilakukan. Sampel diambil menggunakan Peterson Grab Sampler dari tiga stasiun di masing-masing lokasi pengambilan sampel. Berdasarkan hasil identifikasi dan pencacahan sampel diperoleh 29 marga yang terdiri dari 16 marga berasal dari subkelas Errantia dan 13 marga lainnya berasal dari subkelas Sedentaria. Kapadatan Polychaeta di perairan Teluk Jakarta berkisar antara 194,22?296,30 individu/m2. Terdapat dominasi marga Capitella di Muara Tawar, dan dominasi marga Nereis di Muara Karang. Indeks keanekaragaman Polychaeta berkisar antara 0,69--2,71 dan indeks kemerataan berkisar antara 0,09- -0,97. Kesamaan marga Polychaeta antar muara bervariasi yang berkisar antara 0- -1. Sebaran Polychaeta di perairan Teluk Jakarta menunjukkan pola mengelompok.

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Research on community structure of Polychaeta in five rivermouths of Jakarta Bay (Muara Karang, Muara Baru, Muara Sunda Kelapa, Muara Tiram, and Muara Tawar) have been performed. Samples were taken by Peterson Grab Sampler from three stations at each sampling sites. Based on the identification and enumeration of samples obtained, there were 29 genera comprising, 16 genera from subclasses Errantia and 13 other genera from subclasses Sedentaria. Density of Polychaeta in Jakarta Bay ranged from 194,22 to 296,30 individu/m2. Polychaeta in Muara Tawar are dominated by the Capitella, and then Polychaeta in Muara Karang are dominated by the Nereis. Polychaeta diversity index ranged from 0,69 to 2,71 and evenness index ranged from 0,09 to 0, 97. The similarity index at Jakarta Bay ranged from 0--1. Distribution of Polychaeta in Jakarta Bay waters showed clumped patterns.

Abstrak :
Penelitian mengenai Polychaeta di hutan mangrove, perairan Teluk Kotania, Seram Barat telah dilakukan pada bulan Februari 1996. Dari sampel yang telah dikumpulkan diketahui bahwa di lokasi Teluk Kotania terdapat 40 jenis Polychaeta yang digolongkan ke dalam 36 marga dan 13 suku. Dua jenis di antaranya mempunyai frekwensi kehadiran yang tinggi yaitu Pulliella sp dan Armandia intermedia masing-masing (89%). Rata-rata kepadatan individu Polychaeta di lima lokasi berkisar antara 12.102 individu/m3 - 21.307 individu/m3 , keanekaragaman jenis berkisar antara 2,44 - 3,78 dan kemerataan jenis berkisar antara 0,56 - 0,78. Nilai indeks keanekaragaman dan kemerataan jenis di lima lokasi penelitian sangat ditentukan oleh kontribusi Pulliella sp dan Armandia intermedia. Hasil pengukuran terhadap faktor fisik lingkungan diperoleh kisaran nilai rata-rata salinitas 22,50/00 - 27°loo; suhu 29,5°C - 31°C dan pH 7,8 - 8,4. Sedangkan hasil analisis terhadap tekstur sedimen menunjukkan bahwa umumnya lokasi penelitian bersubstrat pasir sangat kasar, kecuali Pulau Burung didominasi oleh pasir sedang. Hasil analisis cluster dan analisis diskriminan di lima lokasi membentuk dua kelompok. Kelompok I terdiri atas Pulau Tatumbu dan Pulau Burung, sedangkan kelompok II terdiri dari Pelita Jaya 2, Pulau Buntal, dan Pelita Jaya I. Pengelompokan tersebut berdasarkan kepadatan jenis dan substrat. Janis Polychaeta yang menyebar pada jarak 0 - 45 m adalah Armandia intermedia, Pulliella sp dan Aphelia sp. Hasil analisis koresponden mendapatkan bahwa pengelompokan terbentuk berdasarkan kepadatan dan spesifikasi jenis di lokasi tertentu.

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Polychaeta is a group of invertebrates which is important in the marine food chain, particularly for demersal fishes, shrimps, and crabs. Polychaeta lives in various habitats, in muddy, sandy, and stony bottoms. Information about Polychaeta in Indonesian waters, especially in Maluku waters, has not yet been known well. Based on those fact, a research on the community structure and distribution of Polychaeta of mangrove forest in the waters of Kotania Bay was conducted in February 1996. Samples were collected from five stations using a transect method. The aim of the study was to find out the relationship of Polychaeta community structure with the environmental factors in Kotania Bay. The distribution of Polychaeta of mangrove forest in Kotania Bay was also studied. Hopefully, the results of this study can be used as basic information for futher research. During the study, 40 species of Polychaeta belonging to 36 genera of 13 families were collected from the locality. Two species showed high frequency of occurrence (89%), i.e. Pa/lie/la sp and Armandia infermedia. This indicated that the two species were common and distributed more widely than the others. The highest' density of Polychaeta was in Burung Island (21.307 indlm3) and the lowest was in Pelita Jaya 1 (12.102.ind/m3). The highest density of Polychaeta in Burung Island was mainly due to the highest density of Pulliella sp, Armandia intermedia, and A. lepfocirrus. The highest diversity and evenness indeces of Polychaeta species were found in Buntal island. Tatumbu Island and Burung Island had the highest similarity index. The water conditions of Kotania Bay showed that salinity ranged from 22,5°100 to 27°1°0, temperature ranged from 29,5°C to 31°C, and pH varied between 7,8 and 8,4. Substrates mostly contained sand with the very high percentage of very coarse sand. Cluster analysis divided the five station into two groups : Group 1, defined by Tatumbu Island and Burung Island, and Group II, defined by Pelita Jaya 2, Buntal Island, and Pelita Jaya 1. Discriminant analysis also divided the stations into two groups. Medium sand in the substrat was responsible in separating the five stations into two different communities. Factorial Correspondence Analysis (CA) classified the species of Polychaeta into four group based on species densities and specification of species in the location.

Abstrak :
Many kinds of waste from poultry and fisheries by product such us intestine and blood chicken also shrimp head waste still have high nutrition and significant amounts. There are have high potency utilization as alternative feed another commercial feed for marine worm aquaculture. The aims of this research were to know effect different kinds waste material as feed to growth, survival rate, and nutrient composition marine worm Nereis diversicolor. The research used experimental design in laboratorium. Experimental unit were arranged in a completely randomized design with 4 treatments and 6 replication for each treatment. Kinds of feed were (A) intestine chicken powder; (B) shrimp head powder; (C) blood chicken powder and (D) commercial fish feed as control. The initial weight of worms were range between 0,67 ? 0,71 g, after cultured for 50 days showed weight gain were range between 0,31 ? 1,01 g, spesific growth rate (SGR) 0,73 ? 1,76 %/day, and survival rate 80,56 ? 92,22%. The result of analisis varian weight growth, spesific growth rate, and survival rate showed significant differences. The best treatment was intestine chicken powder compare to the other treatments. The result of proximate analysis such us protein were ranged between 6,37 ? 6,65%. The highest protein on treatment B, and lowest on treatment C. The result of anova showed not significant diferences (P > 0,05) to value protein worm. Value of fat on end exsperiment were ranged between 1,01 ? 2,34%. The highest fat on treatment D and lowest on treatment C. The result of anova showed significanct differences (P < 0,05) to value of fat worm. The conclusionof this research was all kind of feed from local waste material source can be as alternative feed another commercial feed in marine worm aquaculture.

Abstrak :
Telah dilakukan penelitian tentang komunitas Spionidae (Polychaeta, Annelida) di perairan pantai Taman Impian Jaya Ancol (TIJA), Teluk Jakarta pada bulan September—Oktober 1993. Penelitian bersifat deskriptif dan bertujuan mengetahui jenisjenis suku Spienidae serta pola sebarannya di dasar perairan dalam jarak 100 m dari pantai. Penelitian dilakukan dengan metode transek garis di 5 stasiun, yaitu: Stasiun I (Pantai Marina); Stasiun II (Pantai Indah); Stasiun III (Pantai Danau); Stasiun IV (Pantai Binaria); dan Stasiun V (Pantai Bagus). Tiap stasiun dibagi menjadi 10 substasiun, masing-masing berja rak 10 m. Pengambilan sampel dilakukan dua kali di tiap substasiun dengan Ekman grab sampler (15 x 15 cm). Dan pene litian tersebut diperoleh 24 jenis Spionidae, yang mewakali 12 marga. Indeks keanekaragaman jen.is tertinggi di Stasiun II (H'= 2,080), sedangkan terendah di Stasiun I (H = 1,218). Sebaran Spionidae di perairan pantai TIJA menunjukkan pola merumpun. Dari penelitian tersebut dapat disimpulkan bahwa • (1) dasaran perairan pantai TIJA yang bertipe lumpuran merupakan habitat yang sesuai untuk Spionidae; (2) nilai kecerahan yang tinggi serta gangguan fisik terhadap perairan dan dasaran dapat mempengaruhi keanekaragaman jenis Spionidae

Abstrak :
ABSTRAK
Untuk memperkenalkan jenis-jenis Polychaeta Sedentaria yang hidup di rataan terumbu ujung Timur Pulau Pari (Kepulauan Seribu, Teluk Jakarta), telah dilakukan suatu penelitian kulitatif-deskriptif. Hasil penelitian adalah koleksi dan deskripsi tujuh jenis Polychaeta Sedentaria (4 suku, 6 marga), yaitu: Dodecaceria laddi Hartman, 1954 (Cirratulidae); Hypsicomus phaeotaenia (Schmarda, 1861), Potamilla ehlersi Gravier, 1906, dan Sabellastarte sanctijosephi (Gravier, 1906) (Sabellidae); Spirobranchus giganteus (Pallas, 1766) (Serpulidae); Pista fasciata (Grube, 1869) dan P.foliigera Caullery, 1915 (Terebellidae). Kesimpulan yang dapat dirumuskan dari hasil penelitian ini adalah: (1) Deskripsi jenis perlu dicocokkan dengan deskripsi asli spesies tipe untuk memantapkan identifikasi; (2) Ukuran panjang Polychaeta Sedentaria perlu dilengkapi data jumlah segmen hewan; (3) Keterangan tentang biologi serta manfaat dan mudarat Polychaeta Sedentaria akan melengkapi pengenalan dan pengetahuan kita tentang hewan tersebut.

Abstrak :
Penelitian mengenai struktur komunitas dan kandungan logam berat timbal pada Polychaeta di Teluk Jakarta telah dilakukan. Penelitian bertujuan untuk mengetahui struktur komunitas dan kandungan logam berat timbal pada Polychaeta pada bulan Februari 2010. Sampel diambil menggunakan Petersen grab bersamaan dengan pengukuran faktor fisika dan kimia lingkungan. Sampel diidentifikasi, serta dihitung indeks keanekaragaman, kemerataan, dominasi dan dianalisis kandungan logam timbalnya menggunakan AAS dan ICP-AES. Polychaeta yang ditemukan sebanyak 29 genus, 16 diantaranya merupakan Polychaeta subkelas Errantia dan 13 diantaranya merupakan Polychaeta subkelas Sedentaria. Keanekaragaman Polychaeta di lokasi pengambilan sampel termasuk kategori rendah hingga sedang. Kandungan rata-rata logam timbal pada Polychaeta di muara tempat pengambilan berkisar antara 0,058 ppm hingga 29,8995 ppm dan masih tergolong dalam kisaran yang cukup rendah, kecuali pada genus tertentu menunjukkan kandungan logam timbal yang berbeda signifikan.