Investigation the use of various pest control products for removing copepod in artemia pond at different salinities

Abstract

This study was carried out to evaluate the effect of different various pest control products for removing Copepod under laboratory condition at salinity of 40, 50 and 60ppt. Experiment was designed in two-factorial experiment in which 1st factor was various pest control product (aqua-Killer, Derris root and Tea-seed (Saponin)); 2nd factor was salinity levels. A combination of two factors was produced 9 treatments, triplicates for each. The results showed that Aqua-Killer (KL) was the best and most stable chemical at three experimental salinities for removing Copepod but it was rather harmful. It not only affected to Copepod but also affected to Artemia and took time before stocking compared to others. Derris root (DR) and Saponin (TS) had less effect on Artemia than Aqua-Killer, but Copepod showed the sign of population recovery and its activation was unstable at different salinity levels.