| parasites in stranded cetaceans of patagonia. | there is an increasing interest in parasites of marine mammals of argentina. here, we examined several poorly known cetaceans, i.e., 2 spectacled porpoises and 1 burmeister's porpoise (phocoenidae), and 1 gray's beaked whale and 1 cuvier's beaked whale (ziphidae); we also updated the parasite information for 1 sperm whale (physeteridae). these hosts strand only occasionally. we found anisakis simplex s.l. in 2 spectacled porpoises and the burmeister's porpoise, and recorded its distribution amon ... | 2008 | 18576713 |
| high coverage of the complete mitochondrial genome of the rare gray's beaked whale (mesoplodon grayi) using illumina next generation sequencing. | using an illumina platform, we shot-gun sequenced the complete mitochondrial genome of gray's beaked whale (mesoplodon grayi) to an average coverage of 152x. we performed a de novo assembly using soapdenovo2 and determined the total mitogenome length to be 16,347 bp. the nucleotide composition was asymmetric (33.3% a, 24.6% c, 12.6% g, 29.5% t) with an overall gc content of 37.2%. the gene organization was similar to that of other cetaceans with 13 protein-coding genes, 2 rrnas (12s and 16s), 22 ... | 2016 | 24450706 |
| bucking the trend: genetic analysis reveals high diversity, large population size and low differentiation in a deep ocean cetacean. | understanding the genetic structure of a population is essential to its conservation and management. we report the level of genetic diversity and determine the population structure of a cryptic deep ocean cetacean, the gray's beaked whale (mesoplodon grayi). we analysed 530 bp of mitochondrial control region and 12 microsatellite loci from 94 individuals stranded around new zealand and australia. the samples cover a large area of the species distribution (~6000 km) and were collected over a 22-y ... | 2016 | 26626574 |
| genetic kinship analyses reveal that gray's beaked whales strand in unrelated groups. | some marine mammals are so rarely seen that their life history and social structure remain a mystery. around new zealand, gray's beaked whales (mesoplodon grayi) are almost never seen alive, yet they are a commonly stranded species. gray's are unique among the beaked whales in that they frequently strand in groups, providing an opportunity to investigate their social organization. we examined group composition and genetic kinship in 113 gray's beaked whales with samples collected over a 20-year ... | 2017 | 28498990 |
| 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 |