| genetic identification of nine hake species for detection of commercial fraud. | this study describes the 5s rrna gene as a simple and reliable one-step pcr-based genetic marker that allows unambiguous identification of merluccius paradoxus, merluccius senegalensis, merluccius australis, merluccius gayi, merluccius bilinearis, merluccius hubbsi, and macruronus magellanicus. the marker is based on differences in length at the nontranscribed spacer within the 5s rrna genes and is robust enough for identification of processed products, such as fish fingers and other precooked c ... | 2004 | 15633688 |
| kudoa alliaria in flesh of argentinian hoki macruronus magellanicus (gadiformes; merlucciidae). | myxozoans of the genus kudoa are widespread parasites of marine fishes and primarily infect the body musculature of their hosts. although kudoa species are not usually associated with host mortality, some do form macroscopic cysts in the tissue and some are associated with post mortem tissue degradation. this is of concern to commercial fisheries as fillets may be unmarketable due to these infections. because different species of kudoa have different effects on their hosts, it is important to co ... | 2006 | 16724571 |
| myxosporean infection in frozen blocks of patagonian hakes. | numerous pseudocysts of the myxosporean genus kudoa were found infecting the body musculature of commercial frozen blocks of patagonian hakes of the species macruronus magellanicus, merluccius australis, and merluccius hubbsi. pseudocysts consisted of numerous diminutive quadrate spores with four polar capsules. the small subunit ribosomal dna was amplified, cloned, and sequenced for phylogenetic study. minimum evolution and maximum parsimony analyses placed the resulting sequences in a clade wi ... | 2008 | 19044280 |
| endoparasite fauna of five gadiformes fish species from the coast of chile: host ecology versus phylogeny. | the aims of the present study were to compare, using multivariate analyses, the degree of similarity of the endoparasite fauna of five fish species belonging to the order gadiformes: merluccius gayi, merluccius australis, macruronus magellanicus (gadoidei) and micromesistius australis and nezumia pulchella (macrouroidei), from the southern and central chilean coast, and to evaluate whether the composition of the endoparasite fauna was determined by phylogenetic or ecological relationships. we em ... | 2011 | 21251342 |
| two new species of myxosporean parasites (myxosporea: bivalvulida) from gall bladders of macruronus magellanicus lönnberg, 1907 (teleostei: merlucciidae). | two new species of myxosporeans are described from the gall bladders of hoki, macruronus magellanicus lönnberg, 1907, caught in the southeast pacific off chile and in the southwest atlantic off the falkland islands. pseudalataspora kovalevae n. sp. is described morphologically and genetically. of the 12 species of pseudalataspora previously described from the gall bladders of marine fish, p. kovalevae is most similar in morphology to p. umbraculiformis gaevskaya and kovaleva, 1984. the 18s rrna ... | 2013 | 26295127 |