Produktitvitas Diatom Perifitik yang Ditumbuhkan pada tipe Subtrat Berbeda Sebagai Alternatif Penyediaan Pakan Alami Udang  

Oleh:

Pratiwi, Niken T.M. ; Adiwilaga, Enan M. ; Soedharma, Dedi ; Widigdo, Bambang

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI
Dalam koleksi: Jurnal Biologi Indonesia vol. IV no. 3 (Jun. 2007), page 177-191.
Topik: periphytic diatoms; natural feed; biocrete; zeocrete; productivity

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ150 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The Productivity of Periphytic Diatom Grown on Different Types of Substrates as an Alternative on Providing Natural Feed for shrimp. Providing natural feed is an attempt to support fisheries culture in a polite way for the sustainability of environment. Periphytic community is living aquatic resources that have a potential value for this purpose. The major component of saline water periphytic community is diatom. The study was emphasized on diatom presentation grown on two types of artificial substrates: biocrete (sand, palm fiber, cement) and zeocrete (zeolite, palm fiber, cement). The reseach was conducted in laboratory with an experimen design follows split split plot in times. The aim of the research is to study the ecological factor and available nutrients to support the growth of periphitic diatoms (Amphora, Cyclotella, Melosira, Navicula, Phaeodactylum, and Thallassiosira) on two different substrates. The productivity of diatom, and the effect of shrimp larvae on the diatom productivity were also analyzed. Two fertilized materials (biocrete and zeocrete) with two main treatments and three levels of treatments each, and unfertilized materials were used as artificial substrates for periphitic diatoms. The results show that all treatment could give sufficient biological available nutrient for the diatoms. The highest diatom productivity was achieved by the population on third level ratio of fertilized biocrete and zeocrete (added by fertilized with N:P ratio of 30:1). Diatom productivity follows the shrimp larvae grazing. The shrimp larvae could grow well on the media with diatom that were grown on fertilized biocrete.

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