Silvina Menu-Marque

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Boeckella antiqua n. sp. from samples collected in an ephemeral pond on the Patagonian plateau is described and illustrated. Diagnostic features of B. antiqua are almost exclusively related to the male fifth pair of legs, females being almost indistinguishable from those of the closely related B. poppei. The two-segmented, spine-bearing left endopod of the(More)
Plankton communities and hydrochemistry of an oligotrophic lake occupying a glacial valley in Argentinian Patagonia (42 °49′S; 71 °43′W) were studied. Monthly samples at three stations integrated from 0 to 50 m and stratified samples at the site of maximum depth, were taken during the growing season. Transparency was always controlled by glacial silt, and(More)
The copepod family Centropagidae is widely distributed and occurs in marine, estuarine, freshwater, and inland saline settings. Molecular phylogenies based upon the 16S and 28S genes demonstrate a complex biogeographic history, involving at least five independent invasions of continental waters from the sea. The first colonization was ancient, likely into(More)
Boeckella gibbosa considered as a doubtful species by Bayly(1992) is here redescribed and illustrated to confirm its validity.This taxon is part of a group of related species to which B. calcaris, B. palustris, B. vallentini and B. diamantina belong, being closest to B. calcaris.Diagnostic features of B. gibbosa are the male fifth pair oflegs and the(More)
A new species of Boeckella from limnetic samples of Laguna del Diamante, a high lake in the Andes (34°10′ S) is described and illustrated. The species is defined by the characters of the male fifth leg: the right two segmented endopod bears four peculiar, short, claw-like spines, the left endopod is a simple finger-like projection. This species is related(More)
No species of the genus Diacyclops has been so far cited from continental Argentina. Specimens collected from a roadside pool in the province of Catamarca on a plateau at 3700 m a.s.l. turned out to belong to a new species, Diacyclops andinus, which is described and illustrated in detail for both sexes. Main diagnostic features are: spine formula of(More)
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