| discovery and widespread occurrence of polyhalogenated 1,1'-dimethyl-2,2'-bipyrroles (pdbps) in marine biota. | polyhalogenated 1,1'-dimethyl-2,2'-bipyrroles (pdbps) are halogenated natural products (hnps) previously shown to bioaccumulate in marine mammals and birds. since their discovery in 1999, six hexahalogenated and a few lesser halogenated congeners have been identified in diverse marine mammal samples. here we report the identification of 17 additional hexahalogenated pdbps in the blubber extract of a humpback dolphin (sousa chinensis) from queensland, australia. thirteen of these new pdbps were a ... | 2013 | 23603470 |
| information theory analysis of australian humpback whale song. | songs produced by migrating whales were recorded off the coast of queensland, australia, over six consecutive weeks in 2003. forty-eight independent song sessions were analyzed using information theory techniques. the average length of the songs estimated by correlation analysis was approximately 100 units, with song sessions lasting from 300 to over 3100 units. song entropy, a measure of structural constraints, was estimated using three different methodologies: (1) the independently identically ... | 2008 | 19062876 |
| anthropogenic contaminants in indo-pacific humpback and australian snubfin dolphins from the central and southern great barrier reef. | we present the first evidence of accumulation of organochlorine compounds (ddts, pcbs, hcb) and polycyclic aromatic hydrocarbons (pahs) in indo-pacific humpback and australian snubfin dolphins from the central and southern great barrier reef. these dolphins are considered by the great barrier marine park authority to be high priority species for management. analyses of biopsy samples, collected from free ranging individuals, showed pahs levels comparable to those reported from highly industriali ... | 2013 | 24016630 |
| resource partitioning in sympatric delphinids: space use and habitat preferences of australian snubfin and indo-pacific humpback dolphins. | 1. many species of delphinids co-occur in space and time. however, little is known of their ecological interactions and the underlying mechanisms that mediate their coexistence. 2. snubfin orcaella heinsohni, and indo-pacific humpback dolphins sousa chinensis, live in sympatry throughout most of their range in australian waters. i conducted boat-based surveys in cleveland bay, north-east queensland, to collect data on the space and habitat use of both species. using geographic information system ... | 2006 | 17009750 |
| discriminating between the vocalizations of indo-pacific humpback and australian snubfin dolphins in queensland, australia. | australian snubfin and indo-pacific humpback dolphins co-occur throughout most of their range in coastal waters of tropical australia. little is known of their ecology or acoustic repertoires. vocalizations from humpback and snubfin dolphins were recorded in two locations along the queensland coast during 2008 and 2010 to describe their vocalizations and evaluate the acoustic differences between these two species. broad vocalization types were categorized qualitatively. both species produced cli ... | 2014 | 25096127 |