Bdelloid Rotifers from Lakes above 1700 m in Western Italian Alps, with Taxonomic Notes on Dissotrocha macrostyla
✍ Scribed by Diego Fontaneto; Giulio Melone
- Book ID
- 102281550
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 171 KB
- Volume
- 88
- Category
- Article
- ISSN
- 1434-2944
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✦ Synopsis
Abstract
Benthic and periphytic bdelloid communities from 16 alpine lakes from 1700 to 2850 m above sea level in Sesia Valley (Piedmont region, North‐western Italy), sampled during summer 2001 and 2002, were analyzed. Seventeen species were identified from these species‐poor communities, with 1 to 6 species each. Dissotrocha macrostyla and Philodina citrina were the most common species, present in 10 lakes while 9 species were collected from one lake only. New morphological details from S.E.M. pictures of Dissotrocha macrostyla revealed that Dissotrocha macrostyla tuberculata (Gosse, 1886) is only a seasonal morphotype. Its different appearance is due to the presence of locally distributed microscopic mucous bubbles (diameter 1.41 ± 0.18 μm) on the trunk surface, produced by the rotifer itself under stressful conditions.