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Evidence for recovery of body mass and haptoglobin values of river otters following the Exxon Valdez oil spill.

https://arctichealth.org/en/permalink/ahliterature6871
Source
J Wildl Dis. 1994 Jul;30(3):421-5
Publication Type
Article
Date
Jul-1994
Author
L K Duffy
R T Bowyer
J W Testa
J B Faro
Author Affiliation
Institute of Arctic Biology, University of Alaska Fairbanks 99775.
Source
J Wildl Dis. 1994 Jul;30(3):421-5
Date
Jul-1994
Language
English
Publication Type
Article
Keywords
Accidents
Alaska
Analysis of Variance
Animals
Animals, Wild
Body constitution
Female
Fresh Water
Haptoglobins - analysis - drug effects
Male
Otters - anatomy & histology - blood
Petroleum - adverse effects
Ships
Water Pollution, Chemical - adverse effects
Abstract
Levels of blood haptoglobin (Hp) and interleukin-6 immunoreactive protein (IL-6 ir) were significantly elevated in river otters (Lutra canadensis) inhabiting oiled areas of Prince William Sound, Alaska (USA) following the Exxon Valdez oil spill in 1989. By May and June 1992, however, such differences were not apparent. Mean body mass of otters, adjusted for sex, age-class, and total length with analysis of covariance, differed between oiled and non-oiled areas from 1990 to 1992, but were nearly identical by May and June 1992. We propose that river otters may be recovering from chronic effects that we observed in 1990 and 1991 following the 1989 Exxon Valdez oil spill, but further research is necessary to test this hypothesis.
PubMed ID
7933287 View in PubMed
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Noninvasive reproductive steroid hormone estimates from fecal samples of captive female sea otters (Enhydra lutris).

https://arctichealth.org/en/permalink/ahliterature4469
Source
Gen Comp Endocrinol. 2003 Oct 15;134(1):18-25
Publication Type
Article
Date
Oct-15-2003
Author
Shawn Larson
C J Casson
Sam Wasser
Author Affiliation
The Seattle Aquarium, About, 1483 Alaskan Way, Pier 59, Seattle, WA 98101-2059, USA. shawn.larson@seattle.gov
Source
Gen Comp Endocrinol. 2003 Oct 15;134(1):18-25
Date
Oct-15-2003
Language
English
Publication Type
Article
Keywords
Analysis of Variance
Animals
Estrogens - analysis - metabolism
Estrous Cycle - metabolism
Feces - chemistry
Female
Otters - physiology
Pregnancy
Pregnancy Tests - methods - standards
Progestins - analysis - metabolism
Radioimmunoassay - methods
Reproduction - physiology
Research Support, Non-U.S. Gov't
Abstract
Noninvasive methods were validated for monitoring fecal metabolites of reproductive hormones (total estrogens and progestagens) in sea otters. Several captive female sea otters were sampled an average of two to three times per week over at least 1 year to document the reproductive hormone levels within each major reproductive event (estrus, anestrus, luteal phase, and pregnancy). We report significant differences in reproductive hormone levels consistent with most reproductive categories, as well as the minimal number of consecutive samples needed to accurately determine pregnancy using these methods.
PubMed ID
13129499 View in PubMed
Less detail