Abstract
Forty-three freshwater fishes (Heteropneustus fossilis 11, Mystus vittatus 16 and Channa striatus 16) were collected from various
freshwater ponds in the vicinity of Lahore and brought to the lab. All
fishes were examined for the presence of internal helminth parasites in
the digestive tract. The study revealed that all (100%) H. fossilis were
infected with nematodes, Procamallanus heteropneustus, only 6 (37.5%) M. vittatus were found infected with nematodes, Rhabdochona magna and among C. striatus, 9 fish (56.25%) were infected with
acanthocephalans, Pallisentis ophiocephali, 4 (25%) were infected with
cestodes, Senga taunsaensis and 5 (31.25%) were infected with
nematodes, R. magna. The mean intensity of infection was 14.36 in H.
fossilis, 6.5 in M. vittatus and in C. striatus, 3.33 for acanthocephalans,
2.4 for nematodes and only 1.0 for cestodes per infected fish. The results indicate that the parasite intensity is quite high. It may be due to the presence of physical factors that favour the completion of life cycles of these parasites.
MUHAMMAD SHAFIQ AHMED, TAHIR IQBAL, AMJAD MAHMOOD, MUHAMMAD GULZARIN , MUHAMMAD ABID. (2007) HELMINTH PARASITES OF SOME FRESHWATER FISHES, Punjab University Journal of Zoology, Volume 22, Issue (1&2).
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