Impact of changing diet regimes on Steller sea lion body condition

Marine Mammal Science

Volumn 24, Issue 2, 2008, Pages 276-289

  Atkinson, Shannon ^a,b   Calkins, Donald ^a   Burkanov, Vladimir ^c,d   Castellini, Michael ^b   Hennen, Daniel ^a   Inglis, Susan ^a,b  

^a ALASKA SEALIFE CENTER   (United States)

^b UNIVERSITY OF ALASKA FAIRBANKS   (United States)

^c NOAA National Marine Mammal Laboratory   (United States)

^d PACIFIC INSTITUTE OF GEOGRAPHY   (Russian Federation)

Author keywords

Body composition; Body mass; Diet; Dietary intake; Eumetopias jubatus; Nutritional stress; Steller sea lion

Indexed keywords

ADULT; BODY CONDITION; BREEDING SEASON; DIET; ENVIRONMENTAL STRESS; JUVENILE; MORTALITY; NUTRIENT AVAILABILITY; NUTRITIONAL STATUS; PINNIPED; POPULATION DECLINE; PREY AVAILABILITY;

ALASKA; KODIAK ISLAND; NORTH AMERICA; UNITED STATES;

ANIMALIA; EUMETOPIAS JUBATUS; OTARIIDAE;

EID: 41149124764     PISSN: 08240469     EISSN: 17487692     Source Type: Journal    
DOI: 10.1111/j.1748-7692.2008.00188.x     Document Type: Article

References (26)

1. ADF&G (Alaska Department of Fish and Game). 1996. Steller sea lion recovery investigations in Alaska, 1992-1994. Technical Bulletin 13, Department of Wildlife Conservation, Anchorage, AK. 172 pp.
2. Bando, M. 2002. Comparing the nutritional quality of Steller sea lion (Eumetopias jubatus) diets. M.Sc. thesis, University of Alaska Fairbanks, Fairbanks, AK. 110 pp.
3. Bleakney, K., J. R. Carpenter and S. Atkinson. 2005. Rate of passage and assimilation efficiency of herring diets containing different fat levels in harbor seals. Pages 31 43 in T. R. Loughlin, D. G. Calkins and S. Atkinson, eds. Synopsis of research on Steller sea lions: 2001-2005. Alaska SeaLife Center and Sea Scrip Company, Seattle, WA.
4. Bowen, W. D., and S. J. Iverson. 1998. Estimation of total body water in pinnipeds using hydrogen-isotope dilution. Physiological Zoology 71 : 329 332.
5. Calkins, D., and E. Goodwin. 1988. Investigation of the declining sea lion population in the Gulf of Alaska. Unpublished Report. Alaska Department of Fish and Game, Anchorage, AK. 76 pp.
6. Calkins, D. G., and K. W. Pitcher. 1982. Population assessment, ecology and trophic relationships of Steller sea lions in the Gulf of Alaska. Final Report Outer Continental Shelf Environmental Assessment Program. 129 pp.
7. Calkins, D. G., E. F. Becker and K. W. Pitcher. 1998. Reduced body size of female Steller sea lions from a declining population in the Gulf of Alaska. Marine Mammal Science 14 : 232 244.
8. Calkins, D. G., D. C. McAllister, K. W. Pitcher and G. W. Pendelton. 1999. Steller sea lion status and trend in southeast Alaska: 1979-1997. Marine Mammal Science 15 : 462 477.
9. Carpenter, J. R., C. L. Morishige and B. Rasco. 2005. Utilization of Near Infrared Spectroscopy (NIRs) and dry matter to predict the nutrient composition of Pacific herring. Synopsis of research on Steller sea lions: 2001-2005. Alaska SeaLife Center, Seattle, WA. pp. 43 58.
10. Castellini, M. A., J. M. Castellini and S. J. Trumble. 2002. Recovery of harbor seals. Phase II: Controlled studies of health and diet. Exxon Valdez oil spill restoration project final report (Restoration Project 01341). Alaska Department of Fish and Game, Habitat and Restoration Division, Anchorage, AK. 72 pp.
11. Hedd, A., R. Gales and D. Renouf. 1997. Inter-annual consistency in the fluctuating energy requirements of captive harp seals Phoca groenlandica. Polar Biology 18 : 311 318.
12. Kumagai, S., D. A. S. Rosen and A. W. Trites. 2006. Body mass and composition responses to short-term low energy intake are seasonally dependent in Steller sea lions (Eumetopias jubatus). Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology 176 : 589 598.
13. Merrick, R. L. 1995. The relationship of the foraging ecology of Steller sea lions (Eumetopias jubatus) to their population decline in Alaska. Ph.D. dissertation, University of Washington, Seattle, WA. 171 pp.
14. NMFS. 1995. Status review of the United States Steller sea lion (Eumetopias jubatus) population. Prepared by the National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration. 65 pp.
15. Payne, S. A., B. A. Johnson and R. S. Otto. 1999. Proximate composition of some northeastern Pacific forage fish species. Fisheries Oceanography 8 : 159 177.
16. Perez, M. A. 1994. Calorimetry measurements of energy value of some Alaskan fishes and squids. U.S. Department of Commerce, NOAA Technical Memorandum NMFS-AFSC-32. 32 pp.
17. Rosen, D. A. S., and D. Renouf. 1998. Correlates of seasonal changes in metabolism in Atlantic harbour seals (Phoca vitulina concolor). Canadian Journal of Zoology 76 : 1520 1528.
18. Rosen, D. A., and A. W. Trites. 1999. Metabolic effects of low-energy diet on Steller sea lions, (Eumetopias jubatus). Physiological Zoology 72 : 723 731.
19. Rosen, D. A., and A. W. Trites. 2000. Assessing the role of nutritional stress in the decline of wild populations: A Steller case of scientific sleuthing. Pages 182 186 in C. L. K. Baer, ed. Proceedings of the Third Comparative Nutrition Society Symposium, Pacific Grove, CA, August 4 9.
20. Sparling, C. E., J. R. Speakman and M. A. Fedak. 2006. Seasonal variation in the metabolic rate and body composition of female grey seals: Fat conservation prior to high-cost reproduction in a capital breeder? Journal of Comparative Physiology B 176 : 505 512.
21. Stanberry, K. 2003. The effect of changes in dietary fat level on body composition, blood metabolites and hormones, rate of passage, and nutrient assimilation efficiency in harbor seals. M.Sc. thesis, University of Hawaii, Honolulu, HI. 109 pp.
22. Trites, A. W., D. G. Calkins and A. J. Winship. 2007. Diets of Steller sea lions (Eumetopias jubatus) in southeast Alaska, 1993-1999. Fisheries Bulletin 105 : 234 248.
23. Trumble, S. J., P. S. Barboza and M. A. Castellini. 2003. Digestive constraints on an aquatic carnivore: Effects of feeding frequency and prey composition on harbor seals. Journal of Comparative Physiology B 173 : 501 509.
24. Trumble, S. J., M. A. Castellini, T. M. Mau and J. M. Castellini. 2006. Dietary and seasonal influences on blood chemistry and hematology in captive harbor seals. Marine Mammal Science 22 : 104 123.
25. Vollenweider, J., J. Womble and R. Heintz. 2006. Estimation of seasonal energy content of Steller sea lion (Eumetopias jubatus) diet. Pages 155 176 in A. W. Trites, S. K. Atkinson, D. P. DeMaster, L. W. Fritz, T. S. Gelatt, L. D. Rea and K. M. Wynne, eds. Sea lions of the world. Alaska Sea Grant Program Report AK-SG-06-01, University of Alaska, Fairbanks, AK.
26. York, A. 1994. The population dynamics of northern sea lions, 1975-1985. Marine Mammal Science 10 : 38 51.