Survey on fungal, parasites and epibionts infestation on the Astacus leptodactylus (Eschscholtz, 1823), in Aras Reservoir West Azarbaijan, Iran.

摘要: A total of 394 (255 males,139 females) live freshwater crayfish Astacus leptodactylus from four stations Aras reservoir in West Azarbaijan Province (North-Western Iran) were studied during the winter until early autumn 2009 for presence parasites, Epibionts and Fungal agents. Parasitological surveys carried out on gills; exoskeleton internal organs, mycological examinations (the legs, abdominal cuticle eggs). 9 epibionts parasites peritrich protozoans including :Cothurnia sieboldii (68.5%), Zoothamnium spp. (56.6%), Vorticella similis (45.6%) , Chilodonella (0.5%), Podophrya fixa (7.8%), Epistylis chrysemidis (53.2%), Pyxicola annulata (66%), Opercularia articulata (19.8%), Tetrahymena pyriformis (0.5%) recorded. From Metazoan group, Branchiobdella kozarovi (71%) as first observation was only parasite recorded with prevalence (100%) spring summer study year. Infected gills heavily damaged Aeolosoma hemprichi (Annelid) 90% prevalence. Other Epibiont fouling organisms such Rotatoria; free living Nematods observed this survey. Furthermore, mycotic agents identified Penicillium expansum; Aspergillus flavus; Alternaria sp. ; Fusarium Saprolegnia isolated IM media slides cultured cuticular melanized lesions eggs infected specimens. This is investigation epibionts, fungal endemic reservoir, Iran.