| description of the microsporidian parasite, heterosporis sutherlandae n. sp., infecting fish in the great lakes region, usa. | heterosporosis is an increasingly important microsporidian disease worldwide, impacting wild and farmed raised fishes in both marine and freshwater environments. a previously undescribed species (heterosporis sp.), with widespread distribution in the great lakes region, was the subject of this study. three angler-caught fish were submitted to the minnesota veterinary diagnostic laboratory from 2009-2010 with lesions caused by intracellular proliferation of parasitic spores, resulting in destruct ... | 2015 | 26244983 |
| analysis of fin clips as a nonlethal method for monitoring mercury in fish. | monitoring of mercury in fish typically involves removal of individuals from the sampled population and subsequent analysis of fillets. this study assessed whether the analysis of fins, structures routinely clipped to mark released fish in population studies, could provide a nonlethal approach for estimating mercury concentrations in axial muscle (fillets). we analyzed fillets and selected fins from 401 northern pike (esox lucius) and 79 walleye (sander vitreus) from 21 lakes in minnesota and wi ... | 2008 | 18323115 |
| volatile compounds in flavor-tainted fish from the upper wisconsin river. | fillets from walleye pike (stizostedion vitreum) and northern pike (esox lucius) captured from the upper wisconsin river were analyzed for volatile components using simultaneous steam distillation-extraction and gc-ms techniques. based on comparative odor assessments of eluting gc fractions and gc-ms analysis between control and tainted fish, trace amounts (ppb) of alkylphenols (2-isopropyl-, 4-isopropyl-, 2,4-diisopropyl-, 2,5-diisopropyl-, 2,6-diisopropyl-, 3,5-diisopropyl-, 5-methyl-2-isoprop ... | 1988 | 3209816 |