Population Dynamics of the Parasites in Fundulus zebrinus in the Platte River of Nebraska

Structure and diversity of endoparasitic infracommunities and the trophic level of Pseudoplatystoma corruscans and Schizodon borelli (Osteichthyes) of the high Paraná river

“…In the case of both hosts, all the species of endoparasites analyzed presented a spatial aggregate pattern in agreement to the typical patterns of endoparasitism showed by some authors (Skorping 1981, Janovy & Hardin 1987, Oliva et al 1990). According to Anderson and Gordon (1982) this pattern of aggregate dispersion may have originated (1) from the heterogeneity of the host's behaviour; (2) by patterns of spatial aggregation in the distribution of infectant stages and (3) by the differences of susceptability and capacity of the hosts' immunological reaction.…”

The Niche of Salsuginus thalkeni, a Gill Parasite of Fundulus zebrinus

“…Finally, the long-term relative stability of the S. thalkeni population suggests that it might be determined whether there exists a relationship between abiotic conditions and parasite niche structure (Janovy and Hardin, 1987).…”

Salsuginus thalkeni n. sp. (Monogenea: Ancyrocephalidae) from Fundulus zebrinus in the South Platte River of Nebraska

“…This species of helminth has been cal1ed "Urocleidus fundulus" by Adams (1985Adams ( , 1986 and Janovy and Hardin (1987), and Salsuginus sp. by Janovy and Hardin (1988).…”

“…This species of helminth has been cal1ed "Urocleidus fundulus" by Adams (1985Adams ( , 1986 and Janovy and Hardin (1987), and Salsuginus sp. by Janovy and Hardin (1988). A thorough study of the ancyrocephalid monogeneans parasitizing Fundulus species was presented by Murith and BeverleyBurton (1985), who reviewed and evaluated taxonomic characters, synonymized some of the helminth species, assigned themal1 to the genus Salsuginus, and provided advice on the identification of specimens from various hosts.…”

“…A thorough study of the ancyrocephalid monogeneans parasitizing Fundulus species was presented by Murith and BeverleyBurton (1985), who reviewed and evaluated taxonomic characters, synonymized some of the helminth species, assigned themal1 to the genus Salsuginus, and provided advice on the identification of specimens from various hosts. The present description is intended to resolve the taxonomic position and nomenclature of the ancyrocephalid worms that have been used in previous ecological studies (Adams, 1985(Adams, , 1986Janovy andHardin, 1987, 1988), according to the criteria of Murith and Beverley-Burton (1985).…”