Abstract
Abstract Parasites were collected from 1,200 short-finned squid (Illex coindetii, Todaropsis eblanae) caught as bycatch in a multispecies trawling fishery in the northwest Spanish Atlantic waters in 1992-1993. Parasites found included six species of helminths, threetetraphyllidean cestodes (Phyllobothrium sp., Pelichnibothrium speeiosum, Dinohothrium sp.), two trypanorhynchidean cestodes (Nybelinia yamagutii, Nybelinia lingualis), and one ascaridoid nematode (Anisakis simplex B). Two of these parasites (Phyllobothrium sp., A. simplex B), which could be recognised as component species, were used in analyses of host-parasite relationships. Levels of infection varied significantly with host size or stage of maturation for both squid species. Regional variation in infection level seems attributable to geographical variation in availability of prey, discreteness and movements of host populations and to size or age-related changes in the prey selection oftheir host. Parasite evidences suggest that both ommastre...
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call