| role of chemical substances from fish hosts in hatching and host-finding in monogeneans. | hatching responses to chemical stimuli appear to have evolved independently in different kinds of monogenean skin and gill parasites of fishes, particularly in those parasites associated with bottom-dwelling hosts. some monogeneans, such asentobdella soleae, have two hatching strategies, responding readily to host skin mucus but hatching spontaneously in small numbers in the absence of the host. other monogeneans, such asacanthocotyle lobianchi, have abandoned spontaneous hatching and rely entir ... | 1986 | 24305883 |