the distribution of the introduced tapeworm bothriocephalus acheilognathi in australian freshwater fishes. | native and exotic fishes were collected from 29 sites across coastal and inland new south wales, queensland and victoria, using a range of techniques, to infer the distribution of bothriocephalus acheilognathi (cestoda: pseudophyllidea) and the host species in which it occurs. the distribution of b. acheilognathi was determined by that of its principal host, carp, cyprinus carpio; it did not occur at sites where carp were not present. the parasite was recorded from all native fish species where ... | 2000 | 10881282 |
morphological and reproductive characteristics of male mosquitofish (gambusia affinis holbrooki) inhabiting sewage-contaminated waters in new south wales, australia. | the potential effects of exposure of fish to reproductive endocrine disruptors (reds) is of major concern. this study reports on the effects of sewage effluent exposure on morphology of male mosquitofish (gambusia a. holbrooki) in a tributary of the hawksbury-nepean river system in new south wales, australia. the growth and development of the modified anal fin (the gonopodium, gp) is a secondary sexual characteristic in males, forms under the influence of testosterone, and is critical for sperm ... | 1999 | 10047598 |