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Hasil Pencarian

Ditemukan 3 dokumen yang sesuai dengan query
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"Indonesia is a country with the bigest holothurian's potency, and as the bigest holothurian producer in the world. Holothurians known as one of the bigest fishiers, that live in monospecific temperate region to multispecific in tropical areas...."
Artikel Jurnal  Universitas Indonesia Library
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"An investigation of bacteria as holothurians?s feed carried out from May until June 2006 in Medane Bay and Kombal Bay, Lombok, Indonesia. The aims of this study are to know whether holothurians eat bacteria, to observe that bacteria are the key for holothurians? habitat preference, and to understand the functions of bacteria in holothurians intestine. The results showed there are many kind of bacteria in the substrates and inside intestine of sea cucumber. There are no specificity in performance, species and number of bacteria which found in anterior or posterior of intestine, as well in their substrates. Therefore, the holothurians do not choose specific bacteria for their feed. Bacteria are the consequence of substrates ingested. Some of them can be microflora in holothurians intestine. Bacteria inside holothurians produce some enzymes such as protease, amylase and agarase. This function was proven by the increasing of Total Organic Matters (TOM) in their feces. This evidence supporting Wiedmeyer (1992) statement that sea cucumber adds organic matters in the sediment. So this also firm holothurians? function in their habitat, as supplier for organic matters. The conclusion is that bacteria are eaten by holothurians by absorption, bacteria is not the key for microhabitat preference for holothurians, and inside the intestine of holothurians, digestion and degradation are the function of bacteria by producing their enzymes."
620 JITK 3:1 (2011)
Artikel Jurnal  Universitas Indonesia Library
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"Penelitian ekhinodermata di perairan Selat Lembeh telah dilakukan pada bulan Juni dan Juli 2088 di empat lokasi: Serena Besar, Tanjung Kuku-kusu, Pintu Kota dan Labuhan Kompeni. Pengambilan contoh biota dilakukan dengan menggunakan transek kuadrat ukuran 1m x 1m. dari hasil penelitian diperoleh 23 jenis fauna ekhinodermata yang mewakili 4 jenis Holothuroidea, 7 jenis Asteroidea dan 5 jenis Ophiuroidea. Kelompok teripang atau Holothuroidea merupakan kelompok yang paling menonjol untuk daerah lamun. Berdasarkan hasil transek yang dilakukan di empat kekayaan jenis relatif tinggi. Dari analisis kuantitatif diperoleh nilai indek diversitas tertinggi ditemukan di lokasi Serena Besar (H=1,204), nilai kemerataan tertinggi terdapat pada lokasi Labuan Kompeni (J=0,85) dan nilai kekayaan jenis tertinggi didapatkan pada Tanjung Kusu-kusu (D=0,29). Secara umum baik dalam jenis atupun jumlah individu, fauna ekhinodermata di Selat Lembeh, Bitung lebih miskin bila dibandingkan dengan di pulau-pulau Derawan. Tujuan penelitian ini untuk melihat komposisi jenis, struktur komunitas, zonasi dan sebaran lokal. "
Artikel Jurnal  Universitas Indonesia Library