FIRST EVIDENCE OF AUTHENTICITY OF PECTORAL FIN RAY SECTIONS FOR AGE DETERMINATION OF EXOTIC CARP, HYPOPHTHALMICHTHYS MOLITRIX (VAL.1844)
|ABSTRACTS OF THE PAPERS APPEARING IN VOLUME 53(2003)|
Department of Zoology, Panjab University, Chandigarh - 160 014
Department of Biology, College of Science, Shiraz University, Shiraz, Iran
For the first time the authenticity of annual marks on the sections of pectoral fin ray of silver carp, Hypophthalmichthys molitrix (Val. 1844) from Gobindsagar, Himachal Pradesh, India has been ascertained for age determination and back-calculated lengths to calculate the various growth parameters. The methodology for the preparation of sections of pectoral fin ray has been described. It is opined that this hard part of this exotic carp should be tried in other commercial carps too as its removal will not lower the market value of the fish.
Key words: Age determination, back-calculated lengths, Hypophthalmichthys molitrix, pectoral fin ray.