On 11 September 2007, only three months after the discovery of convict cichlids in the channel, 150 convict cichlids were collected to be examined for the presence of the Asian tapeworm. A second fish collection took place on 1 May 2014 and included 300 convict cichlids and 70 mosquitofish.
The Asian tapeworm was the only intestinal parasite found in the 450 convict cichlids collected from the discharge channel of a water treatment plant in September 2007 and May 2014.
The present paper documents the first record of the Asian tapeworm in a wild population of the convict cichlid in the U.S.
The artificially elevated water temperature of 26[degrees]C [[+ or -] 1.5[degrees]C] was optimal for the growth and development of the Asian tapeworm. Stimulating effect of high temperature on parasite transmission, infectivity.
Based on our limited sampling effort we were unable to identify alternative abiotic factors that, acting singly or synergistically with biotic factors, might affect fish infection by the Asian tapeworm. The last ones may include fluctuations in the biomass of zooplankton including cyclopoid copepod community (the intermediate host of the Asian tapeworm), shortage in biomass of phytoplankton (the food web for copepods), copepod species diversity (not all copepods are an efficient intermediate host for the Asian tapeworm) and changes in the structure of the fish community inhabiting the collection site.
Bothriocephalus acheilognathi Yamaguti (Asian tapeworm).
Asian tapeworm, Bothriocephalus acheilognathi (Yamaguti, 1934), a recent cestode introduction into the Western United States of America; control methods and effect on endangered fish populations.
Asian tapeworm Bothriocephalus acheilognathi Yamaguti 1934 in North America.