Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Induction of gonadotropin secretion and ovulation of cultured fishes by using LHRH-a and dopamine antagonist pimozide (Pim) or LHRH-a and catecholamine depletor reserpine (Res).

Abstract

Injection once or twice with 5 or 10 ng pimozide or reserpine plus 10, 50 or 100 µg LHRH analogue induced spawning in 88% of treated grass carp (Ctenopharyngodon idella), bighead carp (Aristichthys nobilis) and black carp (Mylopharyngodon piceus), 84% of silver carp (Hypophthalmichthys molitrix), 96% of mud carp (Cirrhinus molitorellus) and 94% of bream (Parabramus pekinensis). Hatching rates in the 6 species were 90, 80, 80, 80, 92 and 80% resp.