Rotifer Identification Trichocercidae Hue University Rotifer Taxonomy workshop
- Slides: 11
Rotifer Identification: Trichocercidae Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Rotifer Identification: Trichocercidae n n n Classification Morphology: u Lorica u Trophi Identification do’s and don’ts Biogeography Ecology Problems Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Classification Trichocercidae Harring, 1913 n Ascomorphella Wiszniewski, 1953 (1 sp. , in Volvox colonies) Elosa Lord, 1891 (2 spp. , psammobiontic or littoral) n Trichocerca Lamarck, 1801 (67 spp. ) n u u subgenus Diurella Bory de St. Vincent, 1824, subgenus Trichocerca Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Morphology: lorica asymmetry! Trichocerca wanarra Segers & Shiel: 7 -9 Trichocerca myersi (Hauer): 10 - 13 Trichocerca plaka Myers: 14 -17 Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Morphology: lorica Trichocerca edmondsoni (Myers). 1 -4 Trichocerca mollis Edmondson 5 -8 Trichocerca maior Hauer. 9 -11 Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Morphology: lorica Trichocerca ornata Myers. 12– 14; T. rotundata Myers. 15 -19; Trichocerca lata Myers. 20 -22 Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Morphology: trophi asymmetry! Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Morphology: trophi Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Identification do’s and don’ts Do: u Always: 1000 x, immersion oil u Well-contracted specimens! u Asymmetry: different viewing angle u BOTH trophi and external morphology n Don’t: u Squeeze the animals n Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Biogeography Hue University Rotifer Taxonomy workshop 6 -12 March 2010
Ecology n n Marine: 1 species Freshwater: the rest u Pelagic u Littoral u Psammobiontic Habitat requirements: mostly “good” quality water (see Sladecek: Brachionus/Trichocerca index) Feeding: specialized (e. g. , T. capucina) Hue University Rotifer Taxonomy workshop 6 -12 March 2010