anisakis nascettii n. sp. (nematoda: anisakidae) from beaked whales of the southern hemisphere: morphological description, genetic relationships between congeners and ecological data. | a new anisakid nematode, anisakis nascettii n. sp., is described from beaked whales mesoplodon spp. off the coast of new zealand and south africa. morphological and molecular (allozymes and mtdna cox2 sequence) data were used for diagnostic and identification purposes. among the 19 allozymes studied, 10 were found to be unique and characteristic for a. nascettii n. sp. analysis of allozymes demonstrated reproductive isolation from a. ziphidarum paggi, nascetti, webb, mattiucci, cianchi & bullini ... | 2009 | 19790000 |
molecular characterization and phylogeny of anisakid nematodes from cetaceans from southeastern atlantic coasts of usa, gulf of mexico, and caribbean sea. | in the present study, 407 anisakid nematodes, collected from 11 different species of cetaceans of the families delphinidae, kogiidae, physeteridae, and ziphiidae, from the southeastern atlantic coasts of usa, the gulf of mexico, and the caribbean sea, were examined morphologically and genetically characterized by pcr restriction fragment length polymorphism to identify them to species level, assess their relative frequencies in definitive hosts, and determine any host preference. sequence data f ... | 2011 | 21212982 |
morphological and molecular characterization of anisakis larvae (nematoda: anisakidae) in beryx splendens from japanese waters. | the third-stage (l3) larvae of anisakis, which are the etiological agents of human anisakiasis, have been categorized morphologically into anisakis type i larvae and anisakis type ii larvae. genetic analysis has allowed easy identification of these larvae: anisakis type i larvae include the species anisakis simplex sensu stricto, anisakis pegreffii, anisakis simplex c, anisakis typica, anisakis ziphidarum, and anisakis nascettii, whereas anisakis type ii larvae include the species anisakis physe ... | 2011 | 21377540 |
first record of the anisakid nematode anisakis nascettii in the gervais' beaked whale mesoplodon europaeus from brazil. | anisakid nematodes are parasites with an indirect life cycle, involving many hosts, including cetaceans that act as definitive hosts. identification at species level is crucial for a better understanding of the epidemiology and ecology of these parasites, but an accurate diagnosis based only on morphology is difficult. in brazil, genetic characterization of anisakids is still rare, with anisakis typica and a. physeteris being the only two species identified by genetic markers until now. the defi ... | 2016 | 25348888 |