Menu-Marque, S.A. (2003). Las especies del género Boeckella (Copepoda, Calanoida, Centropagidae) de la República Argentina y taxa afines. [Species of the genus Boeckella (Copepoda, Calanoida, Centropagidae) from the Argentine Republic and related taxa.]. Tesis de Doctorado, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina. 213 pp.

97469

Menu-Marque, S.A.

2003

213 pp.

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The present thesis provides substantial knowledge on the systematics of the planktonic copepod fauna of inland waters of Argentina, particularly of the family Centropagidae, belonging to the order Calanoida. This family includes representatives of marine, estuarine and strictly inland waters, both of freshwater and saline environments. Of all the members of the Centropagidae which have been able to colonize continental waters, the genus Boeckella is by far the most successful, whether we measure it by specific diversity, geographic range or abundance. Bayly (1992) published a revision of the South American species of Boeckella, which is here completed with the redescription of Boeckella gibbosa (Brehm 1935) and the detailed description of B. diamantina Menu-Marque &Zúñiga, 1994 and B. antiqua Menu-Marque 8. Balseiro, 2000. The identification key for the South American species of Boeckella prepared by Bayly(1992), based upon the structure of the male fifth Iegs, is here modified to include the above mentioned species. B. titicacae (Harding, 1955) is considered a junior synonym of B. gracílipes Daday, 1901, following the criterion of Villalobos & Zúñiga (1991). A complete updated list of records of the Argentinean species of Boeckella is provided, about 220 new localities are added to those previously registered from the literature. Distributional maps of the 17 species so far identified in Argentina are presented. Even with the inclusion of the species recently found and the large amount of new localities cited for Boeckella species since the publication of Ringuelet's review (1958), the basic scheme for continental Argentina of an Andean-Patagonic distribution "marginally spiIIingto the east on the south of the neighbouring subregion (in Argentina and Uruguay)"described bythe above mentioned author stillholds. Even ifmore data from other South American countries are necessary, it is probable that the distribution of the species of Boeckella come to reinforce the idea of the Andean subregion proposed by Morrone (1996) or, still more, support his recent proposal to raise it to the category of biogeographical region (Morrone, 1999).

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