Background colour induced modification in general body coloration of freshwater prawn Macrobrachium lamarrei (Crustacea-Decapoda)

Abstract

Colour changing in animals of different texa is a vital phenomenon, which can also be exploited in term of increasing demand of market therefore can prove economical. Freshwater prawn, Macrobachium lamarrei (Crustacea-Decapoda) was exposed to five different background colours viz. white, red, green, blue and black along with one control i.e. translucent. Chromatophore density and type was found variable in different background colours accordingly. The number of chromatophores was found significantly increased in darker backgrounds in comparison to control and maximum number was recorded in black background. The order of darkness of prawns was observed as white