| phylogenetic analysis of the ssu rrna gene from the piscine diplomonad spironucleus torosus (diplomonadida: hexamitinae). | previous studies have recorded spironucleus torosus poynton et morrison, 1990 from several species of gadoid fishes, including the only freshwater gadoid, the burbot lota lota (l.). two morphologically different isolates of s. torosus have been described (elongate and pyriform). both have been found in saltwater, while only the elongate has been found in freshwater. to address the conspecificity of the two morphs of s. torosus, and to identify the source of s. torosus in burbot in norway, we hav ... | 2007 | 18303769 |
| prevalence and morphology of eimeria gadi (fiebiger, 1913) in the haddock. | the coccidian parasite eimeria gadi was found in the haddock, melanogrammus aeglefinus, taken from the nova scotian fishing banks. the haddock infection rates ranged from a high of 58% on emerald bank to a low of 4% on georges bank, the average being 32%. there was no relationship between sex and degree or prevalence of infection. although the probability of an occurrence of infection increased with size, small fish with heavy infections were observed. the degree of infection had no apparent eff ... | 1976 | 1003343 |