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For successful fish culture the breeding of the fish is the most
vital aspect and can not be even thought without the knowledge of
breeding behavior of the fish, for that purpose the
Endocrinological observations have to be carried out. During the
last decade, fish endocrinology has observed stirring developments
due to advanced research at all levels of biological organization.
The book entitled as "CYCLIC ENDOCRINOLOGICAL CHANGES IN A
TEMPERATE FISH" will serve as a great scientific tool in the field
of fish endocrinology. The fish species of the tribe Oreinini of
the family Cyprinidae breed in running water only and their induced
breeding could not be carried out under controlled conditions in
confined waters. It is because of our meager knowledge about the
reproductive biology of these fishes. It is reported that their
population is continuously depleting in the water bodies of Kashmir
Valley which may be dangerous for their existence. It is expected
that this book will prove useful in breeding them in captivity and
thus protect them from extinction.
This original piece of work highlights the results of studies
carried out on the survey of ecto- and endo- parasitic helminths of
some freshwater fishes of Bhopal, India in relation to the
physico-chemical parameters of water, identification and
classification of parasites, histo-pathology of the organs infected
by them, their effect on the haematological parameters,
gonado-somatic index, fecundity and histology of ovaries. Helminth
parasites damage the organs of fishes on which they subsist. They
interfere with the physiological activities of affected fishes and
retard their growth which causes economical loss to the fishery
industry. Beside this, there is always a possibility of their
transfer to human beings. It is, therefore, this work assumes
importance.
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