Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.1999.1053.1054Ctenopharyngodon idella]]>TasawarZahida NaseemRabia AkhtarMasood 3199923One hundred and twenty grass carp, Ctenopharyngadon idella, were examined over a period of one year from March 1998 to February 1999 at Government Fish Hatchery, Mian Channu, Punjab, Pakistan. Four species of copepod ectoparasites recovered were Lernaea (L.) polymorpha (Yu, 1938), L. cyprinacea (Linnaeus, 1761), L. lophiara (Harding, 1950) and L. ctenopharyngodonis. The parasitic infestation was low during the summer months when temperature ranged between 30-32°C and highest in winter months when temperature was between 13-23°C.]]>Cable, R.M.,1985pp: 255-256pp: 255-256Chubb, J.C.,197715133199Fryer, G.,1956127293344Gnanamuthu, C.P.,1951Lernaea chackoensis n.sp.: A copepod parasitic on two Madras fishes.]]>41143147Kabata, Z.,1985Naseem, R.,1998Ctenopharyngodon idella from Govt. Fish Hatchery, Mian Channu, District Khanewai (Punjab).]]>1998Noga, E.J.,1986Lernaea cruciata (Le Sueur) in the initiation of skin lesions in largemouth bass, Micropterus salmoides (Lacepede), in the Chowan River, North Carolina, USA.]]>9295302Rawson, Jr.M.V.,1977Mugil cephalus L. Crustacea.]]>10441451