The invention relates to a method for obviously improving the
survival rate of
exopalaemon carinicauda in the artificial breeding process, in particular to a method for carrying out
larva separation and collection by utilizing
phototaxis of larvae. The method comprises the following steps of dividing different functional regions in a spawning
pool; regulating illumination in different functional regions; and installing a lifting adjustable
larva collection net. In the step of dividing the functional regions, a large-aperture screen is utilized to isolate and divide the spawning
pool into a parent
shrimp action region and a
larva collection region; and illumination regulation comprises the steps of covering the parent
shrimp action region with a sunshade net and carrying out lure in the larva collection region by a
fluorescent lamp. The method has the advantages that division of different functional regions and illumination regulation enable larvae and parent shrimps to be spatially and effectively separated and reduces the
predation rate of the parent shrimps for the larvae, so that post-larvae yield is greatly improved; meanwhile,
embryo abscission and death of the parent shrimps, which are caused by frequent sorting of the parent shrimps, are also avoided and the
survival rate in the breeding process is improved; and the lifting adjustable larva collection net can be used for collecting larvae in due time according to the
hatching condition of larvae, so that labor intensity is reduced and the practical value on production is improved.