Susan J. Chivers
National Oceanic and Atmospheric Administration
64 Papers
365 Citations
Susan J. Chivers is an academic researcher from National Oceanic and Atmospheric Administration. The author has contributed to research in topics: Biology & Population. The author has an hindex of 25, co-authored 60 publications. Previous affiliations of Susan J. Chivers include National Marine Fisheries Service.
Chat about Author
Papers
Generation length and percent mature estimates for IUCN assessments of cetaceans
Barbara L. Taylor,Susan J. Chivers,Jason P. LareseJ.P. Larese,William F. Perrin +3 more
- 01 Jan 2007
TL;DR: The method the authors developed estimated percent mature for the current population and the generation length for the pre-disturbance population using a simple 5parameter demographic model based on age of first reproduction, inter-birth interval, maximum age of reproductive females, calf survival rate, and non-calf survival.
221
Assessing the Risk of Ships Striking Large Whales in Marine Spatial Planning
Jessica V. Redfern,Megan F. McKenna,Thomas J. Moore,John Calambokidis,Monica L. DeAngelis,Elizabeth A. Becker,Jay Barlow,Karin A. Forney,Paul C. Fiedler,Susan J. Chivers +9 more
TL;DR: This work assessed the risk of ships striking humpback, blue, and fin whales in alternative shipping routes derived from patterns of shipping traffic off Southern California, and developed whale-habitat models that assumed ship-strike risk was proportional to the number of whales predicted to occur within each route.
188
Killer whale predation on sperm whales: observations and implications
TL;DR: It is suggested that killer whale predation has potentially been an important, and underrated, selective factor in the evolution of sperm whale ecology, influencing perhaps the development of their complex social behavior and at-sea distribution patterns.
Nontargeted biomonitoring of halogenated organic compounds in two ecotypes of bottlenose dolphins (Tursiops truncatus) from the Southern California Bight.
Nellie J. Shaul,Nathan G. Dodder,Lihini I. Aluwihare,Susan A. Mackintosh,Susan A. Mackintosh,Susan A. Mackintosh,Keith A. Maruya,Susan J. Chivers,Kerri Danil,David W. Weller,Eunha Hoh,Eunha Hoh +11 more
TL;DR: This nontargeted analytical framework provided a comprehensive list of HOCs that may be characteristic of the region, and its application within monitoring surveys may suggest new chemicals for evaluation.
Blubber testosterone: A potential marker of male reproductive status in short-beaked common dolphins
Nicholas M. Kellar,Marisa L. Trego,Corina I. Marks,Susan J. Chivers,Kerri Danil,Frederick I. Archer +5 more
TL;DR: Testosterone levels in biopsies from 138 free-swimming male D. delphis, of unknown maturity state, sampled off California were found to be of concentrations similar to those from the fishery bycatch and stranding samples and revealed an analogous trend with respect to ordinal date.