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ASELLUS AQUATICUS INFERNUS, NEW SUBSPECIES (ISOPODA: ASELLOTA: ASELLIDAE), FROM ROMANIAN HYPOGEAN WATERS

ASELLUS AQUATICUS INFERNUS, NEW SUBSPECIES (ISOPODA: ASELLOTA: ASELLIDAE), FROM ROMANIAN HYPOGEAN... and Asellus (A.sellus) aquaticus (L., 1758) is an extreme eurytopic, eurythermal, and expan- sive species, represented not only in surface waters, but also in all types of hypogean fresh-water systems (Henry et al., 1996). In many localities all over Europe, populations with more or less depigmented specimens are present. However, only some races from Slovenia (Sket, 1965) and Romania (Ne- goescu, 1989) show further adaptive changes: reduced body pigmentation and depigmented or even degenerated eyes (Sket, 1994; Turk et al., 1996). Detailed survey of a unique subterranean ecosystem associated with thermomineral sul- phurous waters began shortly after the dis- covery of Movile cave, Romania, in June 1986. Most species were previously unde- scribed and characterized by an advanced de- gree of troglomorphy (Sarbu and Popa, 1992). Negoescu (1989) first mentioned the presence of eyeless and depigmented A. aquaticus, stressing the fact that the description was made on a small number of specimens. These preliminary studies attributed the troglobitic Romanian race to the epigean A. a. aquati- cus. Sket (1994) discussed some morpholog- ical characters of the population, based on three male specimens from Movile cave. Later, the results of univariate statistical analysis, made on an extended set of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

ASELLUS AQUATICUS INFERNUS, NEW SUBSPECIES (ISOPODA: ASELLOTA: ASELLIDAE), FROM ROMANIAN HYPOGEAN WATERS

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References (4)

Publisher
Brill
Copyright
Copyright 1998 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/193724098X00647
Publisher site
See Article on Publisher Site

Abstract

and Asellus (A.sellus) aquaticus (L., 1758) is an extreme eurytopic, eurythermal, and expan- sive species, represented not only in surface waters, but also in all types of hypogean fresh-water systems (Henry et al., 1996). In many localities all over Europe, populations with more or less depigmented specimens are present. However, only some races from Slovenia (Sket, 1965) and Romania (Ne- goescu, 1989) show further adaptive changes: reduced body pigmentation and depigmented or even degenerated eyes (Sket, 1994; Turk et al., 1996). Detailed survey of a unique subterranean ecosystem associated with thermomineral sul- phurous waters began shortly after the dis- covery of Movile cave, Romania, in June 1986. Most species were previously unde- scribed and characterized by an advanced de- gree of troglomorphy (Sarbu and Popa, 1992). Negoescu (1989) first mentioned the presence of eyeless and depigmented A. aquaticus, stressing the fact that the description was made on a small number of specimens. These preliminary studies attributed the troglobitic Romanian race to the epigean A. a. aquati- cus. Sket (1994) discussed some morpholog- ical characters of the population, based on three male specimens from Movile cave. Later, the results of univariate statistical analysis, made on an extended set of

Journal

Journal of Crustacean BiologyBrill

Published: Jan 1, 1998

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