Seasonal Occurrence of Helminths in Freshwater Fishes Part IV. Adult Cestoda, Nematoda and Acanthocephala

摘要: Publisher Summary The life cycles of virtually all the adult cestodes, nematodes, and acanthocephalans are complex require one or two intermediate hosts, which second in some instances is a fish, followed by final development to sexual maturity egg larval release definitive fish host. chapter focuses on schemes classification adopted reports seasonal studies cestode, nematode, acanthocephalan adults various species. information related major climatic zones world— namely, tropical, subtropical, mid-latitude, polar, mountain. It noted that there scarcity about patterns occurrence helminths freshwater fishes tropical parts world. considers complexities dynamics involved helminth study parasites leads naturally wider aspects concepts determining population biology host-parasite systems.