Author
 |
Mitchell, Andrew |
|
Submitted to: Book of Abstracts World Aquaculture Society
Publication Type: Abstract Only Publication Acceptance Date: 11/24/2009 Publication Date: 3/1/2010 Citation: Mitchell, A.J. 2010. Preliminary identification schemes for some unicellular ciliated and flagellated parasites of warmwater fishes [abstract]. Book of Abstracts World Aquaculture Society. p.682. Interpretive Summary: Technical Abstract: There are few keys for the identification of small unicellular parasites of warmwater fishes and few experts who can confidently identify these parasites to species. Molecular identification tools for these parasites are largely unavailable. For fishery biologists and even fish health diagnosticians who encounter these parasites, there is little helpful information even for a preliminary identification. This presentation discusses some factors that might be helpful to better differentiate some of these protozoans into the proper species or genera. These factors include: 1) the size and shape of the organisms, 2) some obvious morphometric or meristic characters (some can be enhanced by simple staining techniques), 3) movement of organisms, 4) temperature and other environmental conditions associated with the parasites presence, and 5) characteristic gross pathologies associated with some protozoans. Ciliates emphasized in the presentation include: Ichthophthirius multifiliis, Chilodonella piscicola (cyprini), Chilodonella hexaticha, Capriniana (Trichophrya) piscium, four trichodinid genera (Trichodina, Paratrichodina, Tripartiella, and Trichodonella), and three sessiline peritrich genera (Ambiphrya, Apiosoma, and Epistylis). Some features to distinguish Ichthyobodo (Costia) necator from other common bodonid flagellates will also be given. |
