Effects of oiling on exercise physiology and diving behavior of river otters: a captive study

@article{BenDavid2000EffectsOO,
  title={Effects of oiling on exercise physiology and diving behavior of river otters: a captive study},
  author={Merav Ben-David and Terrie M. Williams and Olav A. Ormseth},
  journal={Canadian Journal of Zoology},
  year={2000},
  volume={78},
  pages={1380-1390}
}
Following the Exxon Valdez oil spill (EVOS), river otters (Lontra canadensis) on oiled shores had lower body mass, selected different habitat characters, and had larger home ranges and less diverse diets than did otters living in non-oiled areas. We explored the possibility that these changes were due to the effect of crude oil contamination on physiological and behavioral processes in otters. Fifteen otters were exposed to two levels of oil contamination under captive controlled conditions at… Expand

Figures and Tables from this paper

BIOMARKER RESPONSES IN RIVER OTTERS EXPERIMENTALLY EXPOSED TO OIL CONTAMINATION
TLDR
The results suggested that opposing processes were concurring in the oiled otters, and the exploration and development of other biomarkers that will be independent from the heme cycle are advocated to provide additional information to the effect of oiling on live mammals. Expand
Post-release survival of river otters: Effects of exposure to crude oil and captivity
TLDR
Results indicated that the captive, newly released animals (i.e., experimental otters) had a significantly lower survival rate than wild animals, but found no effect from exposure to hydrocarbons once rehabilitation was accomplished, but noted that lower levels of hemoglobin were negatively correlated with survival and likely resulted in death from starvation. Expand
High-altitude diving in river otters: coping with combined hypoxic stresses
TLDR
The results suggest that recent disruptions to the Yellowstone Lake food web could be detrimental to otters because at this high elevation, constraints on diving may limit their ability to switch to prey in a deep-water environment. Expand
Effects of the Exxon Valdez Oil Spill on River Otters: Injury and Recovery of a Sentinel Species
TLDR
Integration of individual-based and population-level studies is essential to understanding effects of pollution on populations and ecosystems, and an example of such integration from the exploration of effects of the Exxon Valdez oil spill on river otters inhabiting the terrestrial-marine interface in Prince William Sound, Alaska, USA is provided. Expand
Sea otter population status and the process of recovery from the 1989 'Exxon Valdez' oil spill
Sea otter Enhydra lutris populations were severely affected by the 1989 'Exxon Valdez' oil spill in western Prince William Sound, AK, and had not fully recovered by 2000. Here we present results ofExpand
Bioenergetics assessment of fish and crayfish consumption by river otter (Lontra canadensis): integrating prey availability, diet, and field metabolic rate
TLDR
Otter daily energy expenditure is measured with the doubly labeled water method to develop a bioenergetics model for estimating monthly prey consumption and Meek’s crayfish (Orconectes meeki) catch-per-unit-effort was positively related to stream temperature, indicating that cray fish were more available during warmer months. Expand
Density of river otters (Lontra canadensis) in relation to energy development in the Green River Basin, Wyoming.
TLDR
It is found that otters appeared to avoid areas near energy development and fish abundance was similar among the three river reaches, and monitoring of surface water quality in Southwestern Wyoming with the aid of continuously recording devices and sentinel species is warranted. Expand
Overview of Effects of Oil Spills on Marine Mammals
TLDR
The 1989 Exxon Valdez oil spill in Alaska killed tens of killer whales, hundreds of harbor seals, thousands of sea otters, and hundreds of thousands of birds and greatly impacted marine habitats that contain the forage fish and marine invertebrates that fuel higher trophic levels. Expand
Long-term direct and indirect effects of the 'Exxon Valdez' oil spill on pigeon guillemots in Prince William Sound, Alaska
TLDR
It is found that the recovery of a top-level generalist predator may be constrained by both direct effects (continued exposure to residual oil) and indirect effects (reduced availability of a key prey species) following a large-scale perturbation. Expand
The diving behavior of African clawless and spotted-necked otters in freshwater environments
Understanding the diving behavior of semiaquatic mammals, particularly in relation to estimated aerobic dive limits and diet, is important to understand their adaptability and potential vulnerabilityExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 45 REFERENCES
Chronic effects of the Exxon valdez oil spill on blood and enzyme chemistry of river otters
River otters (Lutra canadensis) living in marine environments of Prince William Sound, Alaska, and exposed to crude oil from the Exxon Valdez spill in March 1989 showed elevated levels of bloodExpand
Ingestion of crude oil: effects on digesta retention times and nutrient uptake in captive river otters
TLDR
While the ingestion of large quantities of weathered crude oil appears to reduce absorption of oil hydrocarbons and may alleviate systemic effects, it may concurrently affect body condition by impacting digestive function. Expand
Changes in diets of river otters in Prince William Sound, Alaska: effects of the Exxon Valdez oil spill
We studied the effects of the Exxon Valdez oil spill on the diets of river otters (Lutra canadensis) from oiled and nonoiled areas of Prince William Sound, Alaska, U.S.A., in 1989 and 1990. On theExpand
Habitat Selection and Home Ranges of River Otters in a Marine Environment: Effects of the Exxon Valdez Oil Spill
We studied habitat selection and home ranges of river otters ( Lutra canadensis ) living along the coastlines of Prince William Sound, Alaska, following the Exxon Valdez oil spill in late March 1989.Expand
Differences in faecal profiles of porphyrins among river otters exposed to the Exxon Valdez oil spill.
TLDR
This is the first model showing the effects of an oil spill on porphyrins on a free-ranging mammal using a non-lethal methodology and suggests that river otters may serve as a suitable indicator species in which p Morphyrin profiles can be used to monitor the effectsof marine and freshwater crude oil exposure. Expand
Evidence for Recovery of Body Mass and Haptoglobin Values of River Otters Following the Exxon Valdez Oil Spill
TLDR
It is proposed that river otters may be recovering from chronic effects that were observed in 1990 and 1991 following the 1989 Exxon Valdez oil spill, but further research is necessary to test this hypothesis. Expand
exposed to the Exxon Valdez oil spill
~~~~, Univenw of Alaska Fairbanks, Fairbanks, Alaska 99775; USA; and R11y Bower is at the InStiMe of Antic Biology and Deparbnent of Bidogy and Wildlife, Universrty of Alaska fairbanks, Fairbanks,Expand
Association of Propulsive Swimming Mode with Behavior in River Otters (Lutra canadensis)
The propulsive swimming modes of river otters ( Lutra canadensis ) were examined relative to behavior. Six river otters were filmed in zoo enclosures that provided surface or submerged views. TheExpand
Locomotory patterns and external morphology of the river otter, sea otter, and harp seal (Mammalia).
TLDR
There is an increased tendency from Lutra to Enhydra to Pagophilus toward enlarged highly specialized feet, approximating a perfect lunate border, and Tail surface area decreases in the above order. Expand
DIVING OF OTTERS (LUTRA-LUTRA) IN A MARINE HABITAT - USE OF DEPTHS BY A SINGLE-PREY LOADER
TLDR
The data support hypothesis (c), but are not in full agreement with the hypotheses (a) and (b) which were developed for multiple-prey loaders unlike the otter, because the otters' preference for shallow water is possibly a result of the lower thermoregulatory costs, and the shorter travel time. Expand
...
1
2
3
4
5
...