PERKEMBANGAN KELIMPAHAN FITOPLANKTON DENGAN PEMBERIAN PUPUK ORGANIK CAIR
Abstract: Phytoplankton is a
very important microorganisms in pond, it has a function asprimary producer,
natural fish food and as supporting water quality parameters.Phytoplankton
growth could be supported by adding fertilizer. One of the best fertilizerthat
could be used is liquid organic fertilizer. This research was conducted on June
1-28,2009 at the Water Quality Management Laboratory, Faculty of Fisheries and
MarineScience, University of Riau. The aim of this research was to investigate
the effect ofaddition of liquid organic fertilizer toward phytoplankton
abundance. Completerandomly design with one factor, six treatments and three
replications was applied. Resultshowed that positive relationship between
concentrations of liquid organic fertilizer andphytoplankton abundance. Liquid
organic fertilizer concentrations applied were : P0(Control), P1 (0,133 ml/m3),
P2 (0,244 ml/m3), P3 (0,511 ml/m3), P4 (1,00 ml/m3) and P5(2,00 ml/m3). Result
showed that the best abundance was obtained from P5 (2,00 ml/m3)with
phytoplankton abundance was 21667 ind/l. The organic material of soil content
from3,820-8,631 %, nitrate concentration 0,234-2,605 ppm, temperature 24-320C,
pH of water(6,1-7,9), DO 3,0-5,3 ppm, turbidity 38-228 NTU, CO2 11,99-50,40 ppm
andorthoposphate concentration 0,099-0,427 ppm.
Key Word: Phytoplankton,
Liquid Organic Fertilizer, Abundance
Penulis: Niken Ayu Pamukas
Kode Jurnal: jpperikanandd110063
