INVESTIGADORES
COLAUTTI Dario Cesar
artículos
Título:
Freshwater fishes of the Río de la Plata: current assemblage structure
Autor/es:
MAIZTEGUI, T.; PARACAMPO, A.; LIOTTA, J.; CABANELLAS, M. E.; BONETTO, C.; COLAUTTI, D. C.
Revista:
NEOTROPICAL ICHTHYOLOGY
Editorial:
SOC BRASILEIRA ICTIOLOGIA
Referencias:
Lugar: Porto Alegre; Año: 2022 vol. 20 p. 1 - 39
ISSN:
1679-6225
Resumen:
Few studies have addressed the composition of fish assemblages of the freshwaterRío de la Plata (RdlP) and have only been limited to species lists gathered overthe last two centuries. As such inventories have never been reviewed or validatedby fish sampling, the richness and structure of RdlP fish assemblage are poorlyknown. Hence, we conducted an exhaustive literature review and a fieldwork insix coastal points of Argentina to update the species composition and determinethe hierarchical structure of the fish assemblage. From the 206 species registeredin the literature, 48 were not confirmed, 13 were absent, five were taken assynonymized species, 29 were supported by literature and 107 were confirmed;one was an established exotic species, and three were a non-established exoticspecies. The findings reported here suggest that the fish assemblage currentlycomprises 141 species, including four new records. Analysis of fieldwork datain number and weight of fish captured resulted in an assemblage hierarchicalstructure of five dominant, 22 frequent, and 45 rare species; 16 dominant, 11frequent, and 45 rare taxa, respectively. These results could be used as baselineto monitor, manage, and preserve neotropical fish species in their southerndistribution boundary.