COPEPODA FROM A DEEP-GROUNDWATER POROUS AQUIFER IN CONTACT WITH KARST: DESCRIPTION OF A NEW SPECIES, PARAMORARIOPSIS BRIGITAE N. SP. (COPEPODA, HARPACTICOIDA)

in Studies on Freshwater Copepoda: a Volume in Honour of Bernard Dussart
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Abstract

Fauna from four wells supplying water to a nearby city was collected over one year at approximately two-week intervals. Three of the wells collect water from a depth of 10-26 m and one from a depth of 33-96 m. Representatives of 35 taxa were collected. Some of them are epigean and were transported from a nearby river. The most abundant group was Copepoda, where 15 taxa were recognized; all but one were stygobionts. There was a noticeable difference between the fauna from the shallow and from the deep wells. In the former, Elaphoidella charon Chappuis, 1936 and Diacyclops languidoides (Lilljeborg, 1901) prevailed, while in the deep well the most abundant species were Graeteriella unisetigera (Graeter, 1908), Ceuthonectes serbicus Chappuis, 1924, and Paramorariopsis brigitae n. sp. The latter was relatively common, 70 specimens being collected (51 ♀♀; 19 ♂♂), with the maximum number of 10-12 specimens per sampling in September/November.

A detailed description of the new species is presented, together with some information on its ecology and specific morphological adaptations, which are similar to those in the two already known species from the same genus (P. anae Brancelj, 1991 and P. irenae Brancelj, 2006).

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