The dynamic relationship of phytoplankton abundance and diversity in relation to white shrimp (Litopenaeus vannamei) feed consumption in intensive ponds

Abstract

Phytoplanktons are a bioindicator that affects the productivity of white shrimp in ponds. The study was conducted in Banyuwangi from February - April 2018 using a descriptive method that observes the water chemistry data in 3 ponds (pond 1, pond 4 and pond 7). The pool area was 3500 m2 with a density of 180 tails / m2. The data observed included NH4, NO2, NO3, PO4 and the productivity data of the white shrimp. The best productivity of the white shrimp was in plot 4, while the lowest productivity was in pond 1 where there were stable nitrogen movement fluctuations and nitrogen content sourced from NO3. Feed is a very important factor in the cultivation of white shrimp because it absorbs 60 - 70% of the total operational costs. The provision of appropriate feed needs will spur on the growth and development of white shrimp optimally so then productivity can be improved. The purpose of this research was to find out the correlation between the dynamics of diversity and phytoplankton abundance and the consumption level of white shrimp feed (Litopenaeus vannamei) in intensive ponds. This was in order to maintain the stability of the water or live media in intensive white shrimp farming.