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Języki publikacji
Abstrakty
The influence on the gonadosomatic index of the adult Proctoeces lintoni (Digenea), a parasite of the gonads of the key-hole limpet Fissurella limbata (Gastropoda), was analyzed. Parasitic biomass reached as much 34.9% of gonadic weight, with a maximum of 99.4%. The gonadosomatic index computed as: (gonadic weight x total length ⁻¹) x 100, shows significant differences when compared with a corrected gonadosomatic index that excludes the parasitic biomass. Thus, caution must be taken when the gonadosomatic index is considered as a valid parameter in parasitized gonads.
Twórcy
autor
- Instituto de Investigaciones Oceanologicas, Facultad de Recursos del Mar, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile
Bibliografia
- Cheng T. C., Sullivan J. T., Harris K. R. 1973. Parasitic castration of the marine prosobranch gastropod Nassarius obsoletus by sporocysts of Zoogonus rubellus (Trematoda): histopathology. Journal of Invertebrate Pathology, 21, 183-190.
- Margolis L. E., Esch G., Holmes J. C., Kuris A. M., Schad G. A. 1982. The use of ecological terms in parasitology (Report of ad hoc Committee of the American Society of Parasitologist). Journal of Parasitology, 68, 131-133.
- Minchella D. 1985. Host-life history variation in response to parasitism. Parasitology, 90, 205-216.
- Oliva M. 1992. Parasitic castration in Fissurella crassa (Archaeogastropoda) due to an adult digenea, Proctoeces lintoni (Fellodistomidae). Memorias do Institute Oswaldo Cruz, 87, 37-42.
- Oliva M., Diaz M. 1988. Aspectos cuantitativos de la infeccion por Proctoeces humboldti (Trematoda: Fellodistomidae) en la lapa Fissurella crassa (Mollusca: Archaeogastropoda). Revista Chilena de Historia Natural, 61, 27-33.
- Oliva M., Diaz M. 1992. An ecological approach to the study of infection of Proctoeces lintoni (Digenea, Fellodistomidae) in the key-hole limpet, Fissurella limbata Sowerby, 1835 (Archaeogastropoda) from northern Chile. Acta Parasitologica, 37, 115-118.
- Sanders M., Lester R. 1981. Further observations on a bucephalid trematode infection in scallops (Pecten alba) in Port Phillip, Bay Victoria Australia. Australian Journal of Marine and Freshwater Research, 32, 475-478.
- Souza W. P. 1983. Host life history and the effect of parasitic castration on growth: A field study of Cerithidea californica Haldeman (Gastropoda: Prosobranchia). Journal of Experimental Marine Biology and Ecology, 73, 273-296.
- Sullivan J. T., Cheng T. C., Howland H. K. 1985. Studies on parasitic castration: Castration of Ilyanassa obsoleta (Mollusca: Gastropoda) by several marine trematodes. Transactions American Microscopical Society, 104, 154-171.
- Zar H. 1984. Biostatistical analysis. Prentice-Hall Inc., N. Y.
Typ dokumentu
Bibliografia
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