Liem's paradox in an African cichlid: Implications for bio-control of the human disease, schistosomiasis

" Research following up on the efficacy of previous introductions of Astatoreochromis alluaudi to non-native waters in an effort to reduce/eliminate "softer-shelled snails of the genera Biomphalaria and Bulinus"..."since both these snail genera are important intermediate hosts of parasitic Schistosoma worms, which cause a harmful waterborne disease in humans known as bilharzias, or schistosomiasis." Additional data covers some morphological characteristics of the species studied. Also see BB (n. 249), pp. 4-6, Dec. 2008 for initial notes "