| prevalence and influence of loma branchialis (microspora) on growth and mortality in atlantic cod (gadus morhua) in coastal newfoundland. | a study was conducted to determine the prevalence, geographical distribution, and effects of a microsporan parasite, loma branchialis, in atlantic cod in coastal newfoundland. the parasite was identified microscopically as opaque, ovoid xenomas, primarily in the gills, heart, and spleen. although widely distributed in young fish inhabiting 7 coastal localities, prevalence was 1-7% in general, <0.01% in older and large fish, but 78% in market-size cod from a commercial farm. some of the latter fi ... | 2005 | 16419777 |
| description of five new loma (microsporidia) species in pacific fishes with redesignation of the type species loma morhua morrison & sprague, 1981, based on morphological and molecular species-boundaries tests. | five new species of loma were described from five pacific fishes using light-microscopic and ultrastructural features along with phylogenetic analysis of the gene sequences of ribosomal rna (rrna) and elongation factor 1-alpha. morphological data revealed both qualitative and quantitative differences in developmental stages and timing, vesicles, xenoma features, and spore sizes with statistical support that differentiated loma pacificodae n. sp. in pacific cod, loma wallae n. sp. in walleye poll ... | 2010 | 21040100 |