author(s)
Sudhan C, Ramesh Kumar, Patadiya DS, Aurobinda Upadhyay and Ranjithkumar K

abstract
The common dolphin fish Coryphaena hippurus (Linnaeus, 1758) landed in Tharuvaikulam fish landing centre at Thoothukudi district, Tamil Nadu were found with skeletal abnormality. The overall well being of 150 common dolphin fish species were found to be positive (K=1.023) with constants a=0.091 and b=2.350 through length-weight analysis and compared with the fish found with skeletal abnormality in the same landing centre. Structured survey was conducted to know the occurrence (33.33 %) of this type of fishes; social affiliation (3. 33%) and preference of consumption (66.67 %) were tested among the selected respondents (n=30) of the village. The parameters like environment, reported length range, fishery status, human uses and global conservation status was found to LE (IUCN) and NE (CITES) through fish base website and compared for the two dolphin fishes occurred in Indian Ocean.