Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Margaret M. Krahn"'
Autor:
Margaret M. Krahn, Gina M. Ylitalo, Douglas G. Burrows, John Calambokidis, Sue E. Moore, Merrill Gosho, Patrick Gearin, Paul D. Plesha, Robert L. Brownell Jr., S. A. Blokhin, Karen L. Tilbury, Teri Rowles, John E. Stein
Publikováno v:
J. Cetacean Res. Manage.. 3:19-29
Organochlorine (OC) contaminant concentrations in tissues and lipid profiles in blubber are summarised for 101 gray whales (Eschrichtius robustus) from the eastern North Pacific stock. Samples were obtained from presumably healthy gray whales during
Publikováno v:
J. Cetacean Res. Manage.. 5:103-113
This paper reviews current scientific literature to provide information for avoiding errors commonly made in comparing and interpreting datasets from laboratories measuring organochlorine contaminants in cetaceans. Before making comparisons and inter
Autor:
Margaret M. Krahn, David P. Herman, Gina M. Ylitalo, Catherine A. Sloan, Douglas G. Burrows, Roderick C. Hobbs, Barbara A. Mahoney, Gladis K. Yanagida, John Calambokidis, Sue E. Moore
Publikováno v:
J. Cetacean Res. Manage.. 6:175-189
The biopsy 2 via dart, trocar or surgery 2 is becoming the preferred protocol for sampling skin and blubber of many cetacean species, because a small sample from a healthy animal may provide better information than a larger sample collected via necro
Autor:
Ronald A. Benner, Lisa L. Desfosse, Robert Wayne Dickey, Nancy B. Beck, Walton W. Dickhoff, Margaret M. Krahn, E. Spencer Garrett, Karen M. Mitchell, Gina M. Ylitalo, Steven Wilson, Brandi T. Noble, Peter N. Koufopoulos, Calvin C. Walker, Cheryl L Lassitter, John E. Stein
Publikováno v:
Proceedings of the National Academy of Sciences. 109:20274-20279
Following the 2010 Deepwater Horizon oil spill, petroleum-related compounds and chemical dispersants were detected in the waters of the Gulf of Mexico. As a result, there was concern about the risk to human health through consumption of contaminated
Autor:
Janice M. Straley, Jooke Robbins, Richard H. Boyer, Karen L. Tilbury, Phillip J. Clapham, Christine M. Gabriele, Margaret M. Krahn, David P. Herman, Gina M. Ylitalo, Ronald W. Pearce
Publikováno v:
Marine Ecology Progress Series. 392:277-293
The ability to determine the age of individual humpback whales Megaptera novaeangliae and estimate population age distributions is fundamental to assessments of status and long-term viability. Existing methods of ageing large whales rely either on li
Publikováno v:
Marine Mammal Science. 24:643-663
Measuring chemical tracers in tissues of marine predators provides insight into the prey consumed and the predator's contaminant exposure. In this study, samples from Type C killer whales {Orcinus area) biopsied in Antarctica were analyzed for chemic
Autor:
Matthew J. Myers, Margaret M. Krahn, Shannon Atkinson, Don Calkins, Gina M. Ylitalo, Daryle Boyd, Vladimir N. Burkanov
Publikováno v:
Science of The Total Environment. 396:60-69
Investigations into the cause of the Steller sea lion population decline have focused on numerous factors, including exposure to toxic contaminants such as organochlorines (OCs). OCs, such as polychlorinated biphenyls (PCBs), 1,1,1-trichloro-2,2-bis(
Autor:
Brent S. Stewart, Margaret M. Krahn, Pamela K. Yochem, Gina M. Ylitalo, Shannon Atkinson, Matthew J. Myers, Robert C. Braun, Daryle Boyd, Lizabeth Kashinsky, A. Alonso Aguirre, George A. Antonelis
Publikováno v:
Marine Pollution Bulletin. 56:231-244
We analyzed blubber and blood samples for organochlorines (OCs) from 158 Hawaiian monk seals ( Monachus schauinslandi ) at four of their six primary breeding colonies in the Northwestern Hawaiian Islands. Levels of OCs in blubber were lower in adult
Autor:
Robin W. Baird, Margaret M. Krahn, Douglas G. Burrows, M. Bradley Hanson, Peter S. Ross, Tracy K. Collier, Richard H. Boyer, Dawn P. Noren, John K. B. Ford, Candice K. Emmons, Linda L. Jones, Gregory S. Schorr
Publikováno v:
Marine Pollution Bulletin. 54:1903-1911
"Southern Resident" killer whales include three "pods" (J, K and L) that reside primarily in Puget Sound/Georgia Basin during the spring, summer and fall. This population was listed as "endangered" in the US and Canada following a 20% decline between
Autor:
Paul R. Becker, Margaret M. Krahn, Barbara J. Porter, Stephen A. Wise, Geoffrey S. York, Michele M. Schantz, Todd M. O'Hara, John R. Kucklick
Publikováno v:
J. Environ. Monit.. 8:848-854
Since 1987, the Alaska Marine Mammal Tissue Archival Project (AMMTAP) has collected tissues from 18 marine mammal species. Specimens are archived in the National Institute of Standards and Technology's National Biomonitoring Specimen Bank (NIST-NBSB)