It was once assumed that Hawaiian monk seals did not travel between the Northwestern Hawaiian Islands and the main Hawaiian Islands, but research now shows that in rare cases they do, and even make it down to Johnston Atoll.
Twenty seals were outfitted with tracking devices to map their home ranges, which were then compared with the persistent organic pollutants in their serum.
Fishermen frequently switch their target fish species without documenting changes in which species they are targeting and the fishing practices used, generating misleading catchability information about the fish caught. Here, we present an alternative method for incorporating changes in catchability as a result of fishermen changing target species.
Validation of fecal glucocorticoid (GC) and thyroid (T3) hormone metabolite measures in the critically endangered Hawaiian monk seal. Examination of variation in the concentrations of these hormones in individuals across the species' range.