Phenotypic differences in pacific whiteleg shrimp (Litopenaeus vannamei, Boone 1931) reared in different types of culture ponds-statical approach

The aquafarming of shrimp is booming with updated innovations to produce successful and profitable crop of whiteleg shrimp L. vannamei which is major stocking species in aquaculture and also in highly demanded among sea foods. Present study was conducted to assess the phenotypic differences or morphometric variations of shrimp. The shrimps (Litopenaeus vannamei) were randomly collected during summer crop (2021) from earthen and polyethylene culture ponds located at Bhimpore, Surat (Gujarat-India). The morphometric parameters (16) were measured from 500 shrimp specimens from each pond to describe the morphological variations among the shrimp population of different culture ponds. The actual total length and partial total length of shrimp in earthen pond and polyethylene lined pond are positively and significantly correlated to each other. PCAshows that shrimp (L. vannamei) population variability is denoted by the three groups of variables in earthen pond (EP) while in polyethylene lined pond (PELP) it was donated by only one group of morphometric variables. The graphical presentation of PCs were depicted that separate cluster of shrimp population from earthen ponds and polyethylene lined pond which subsequently confirm and conclude that morphological structure of shrimp (L. vannamei) population of EP and PELP were entirely different from each other.