Histopathologic lesions associated with crude oil exposure in sea otters

Cover of: Histopathologic lesions associated with crude oil exposure in sea otters |

Published by U.S. Fish and Wildlife Service in Anchorage, AK .

Written in English

Read online

Subjects:

  • Sea otter -- Alaska -- Prince William Sound -- Histopathology,
  • Sea otter -- Effect of oil spills on -- Alaska -- Prince William Sound

Edition Notes

Book details

Other titlesExxon Valdez oil spill state/federal natural resource damage assessment final report
StatementT.P. Lipscomb ... [et al.].
SeriesMarine mammal study -- 6-10
ContributionsLipscomb, Thomas P., U.S. Fish and Wildlife Service.
Classifications
LC ClassificationsQL737.C25 H576 1996
The Physical Object
Paginationiv, 15 p. :
Number of Pages15
ID Numbers
Open LibraryOL23990677M
LC Control Number2009438391

Download Histopathologic lesions associated with crude oil exposure in sea otters

Tissues from six apparently normal sea otters (four males, two females) collected from an area not affected by an oil spill were examined histologically, and none of these lesions were found.

We conclude that interstitial pulmonary emphysema, centrilobular hepatic necrosis, and hepatic and renal lipidosis of sea otters were associated with exposure to crude by: th e spill, over 1, sea otters (Enhydra lutris) from oil spill-affected areas are known to have died.

The actual number that died was probably much greater. The purpose ofthis study is to identify and describe histopathologic lesions associated with crude oil ex­ posure in sea otters and to discuss possible patho­ geneses ofth e lesions.

We conclude that interstitial pulmonary emphysema, centrilobular hepatic necrosis, and hepatic and renal lipidosis of sea otters were associated with exposure to crude oil. Gastric erosion and hemorrhage may have been associated with stress of captivity and/or oil by: We conclude that interstitial pulmonary emphysema, centrilobular hepatic necrosis, and hepatic and renal lipidosis of sea otters were associated with exposure to crude oil.

In the months following the spill, over 1, sea otters (Enhydra lutris) from oil spill-affected areas are known to have died. The purpose of the study is to identify and describe histopathologic lesions associated with crude oil exposure in sea otters and to discuss possible pathogeneses of the lesions.

The contamination of sea otter (Enhydra lurris) fur with crude oil or dispersants reduces its insulation and could subject the animal to hypothermia. This study tested methods for rcmoving crude oil from sea otter pelts, and measurcd changes in insula- tion caused by oil contamination and subsequent cleaning.

Further animal evidence [10] of lung pathology associated with exposure to hydrocarbons comes from a study of sea otters exposed to crude oil in the Exxon Valdez oil spill off Alaska.

In those contaminated by oil, 19 out of 46 had interstitial pulmonary by: 6. Sea otters can be exposed to petroleum hydrocarbons in crude oil: 1) ingestion, 2) inhalation, and 3) dermal absorption.

Since sea otters spend considerable time on the water surface, the first contact with an oil slick generally results in external contamination of the fur and inhalation of volatile petroleum hydrocarbons. Aquatic Mammals36(4),DOI /AM Lesions and Behavior Associated with Forced Copulation of Juvenile Pacific Harbor Seals (Phoca vitulina richardsi) by Southern Sea Otters (Enhydra lutris nereis)Heather S.

Harris,1 Stori C. Oates. Dean TA, Bodkin JL, Jewett SC, Monson DH, Jung D () Changes in sea urchins and kelp following a reduction in sea otter density as a result of the Exxon Valdez oil spill. Mar Ecol Prog Ser – CrossRef Google ScholarCited by: Cetaceans can be exposed to oil and oil-derived compounds via several routes of exposure.

These include direct contact, ingestion of oil or oil-contaminated prey, inhalation of volatilized or aerosolized oil and/or oil components, and aspiration of oil directly into by: 1. Histopathological Changes in the Livers of Rabbit Fish (Siganus canaliculatus) Following Exposure to Crude Oil and Dispersed Oil Article (PDF Available) in Toxicologic Pathology 40(8).

Using a panel of genes stimulated by oil exposure in a laboratory study, we evaluated gene transcription in blood leukocytes sampled from sea otters captured from – in western Prince William Sound (WPWS), Alaska, 17–23 years after the Exxon Valdez oil spill (EVOS).

We compared WPWS sea otters to reference populations (not affected by the. Biomarkers of damage to sea otters in Prince William Sound, Alaska following potential exposure to oil spilled from the Exxon Valdez oil spill.

Exxon Valdez oil spill state/ federal Natural Resource Damage Assessment final report (Marine Mammal Study No. Anchorage, Alaska: U.S. Fish and Wildlife Service Google ScholarCited by: hepatic and renal lipidosis were associated with exposure to crude oil in sea otters.

In the months following the spill, over 1, sea otters (Enhydra lutris) from oil spill-affected areas are known to have died. The purpose of the study is to identify and describe histopathologic lesions associated with crude oil exposure in sea otters and to. Ecology Chapter 8 study guide by jfr includes questions covering vocabulary, terms and more.

Quizlet flashcards, activities and games help you improve your grades. Representative lesions were examined in 21 of the 24 penguins necropsied. Gastrointestinal lesions were found in all 21 specimens, among which intestinal parasitosis was the most frequent condition (found in % of the specimens), followed by the presence of a foreign body in the stomach (%) and intestinal vascular lesions (%), such.

They are a different subspecies than the sea otters that swim off California's coast. The Exxon Valdez released an estimated million gallons of crude oil when it ran aground on Ma Author: John R.

Platt. Lipscomb TP, Harris RK, Moeller RB, Pletcher JM, Haebler RJ, Ballachey BE. Histopathologic lesions in sea otters exposed to crude oil. Vet Pathol. ; 1– pmid View Article PubMed/NCBI Google Scholar Cited by: The southern sea otter (Enhydra lutris nereis) population in California (USA) and the Alaskan sea otter (E.

lutris kenyoni) population in the Aleutian Islands (USA) chain have recently declined. In order to evaluate disease as a contributing factor to the declines, health assessments of these two sea otter populations were conducted by evaluating hematologic and/or serum biochemical. on the sea surface where oil and the most toxic components of oil accumulate.

Unlike most marine mammals, the physical effects of external oil contamination to sea otters may be as damaging as the toxicological effects.

For example, during the EVOS, moderately to heavily oiled sea otters suffered from permanent injury to their eyes, pinna. Resultsfromdetailedinvestigationrevealedthatnearly all of the stranded sea otters died due to infection by the apicomplexan protozoan parasite Sarcocystis neurona, the causative agent of equine protozoal myeloencephalitis (EPM) (Dubey et al., a).

Part of sea otters’ high susceptibility is due to their diet. Because of their high metabolic rate, to maintain their energy levels sea otters consume up to 30% of their body weight in invertebrate prey each day.

A large proportion of this prey consists of filter-feeders, such as mussels and clams. centrilobular hepatic necrosis, and hepatic and renal lipidosis were associated with exposure to crude oil in sea otters.

Hepatocellular vacuolation, degeneration and necrosis have been associated with exposure to crude oil and benzo[a]pyrene (BaP) [71 72]. Histopathologic lesions in sea otters exposed to crude oil. Vet Pathol. ; 1– Cited by: Using a panel of genes stimulated by oil exposure in a laboratory study, we evaluated gene transcription in blood leukocytes sampled from sea otters captured from – in western Prince William Sound (WPWS), Alaska, 17–23 years after the Exxon Valdez oil spill (EVOS).

We compared WPWS sea otters to reference. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.

Following the Exxon Valdez oil spill, oiled sea otters (Enhydra lutris) were treated in rehabilitation centers. Of these, died, 94 within 10 days of presentation.

Clinical records of 21 otters dying during the first 10 days of rehabilitation were reviewed to define the laboratory abnormalities and clinical syndromes associated with these unexpected by: There was a significant correlation between exposure time and the occurrence of most lesions (Spearman correlation; p >).

The present study indicates that oil pollution can cause important alterations to livers of adult rabbit fish and that the dispersed oil is slightly more toxic than crude oil or dispersant. PMID: [Indexed for Cited by: Oil in the sea from anthropogenic sources, whether from spills or chronic releases, is perceived as a major environmental problem.

Major oil spills occur occasionally and receive considerable public attention because of the obvious attendant environmental damage, including oil-coated shorelines and dead or moribund wildlife, especially oiled seabirds and marine mammals. The risk of carcinogenesis due to crude oil exposure is a common concern among members of the public after a release.

To date, there is no epidemiological evidence to link crude oil spill exposure to carcinogenic effects. Furthermore, the International Agency for Research on Cancer (IARC) has determined that there is “limited evidence for the.

Histopathologic and Biochemical Responses in Arctic Marine Bivalve Molluscs Exposed to Experimentally Spilled O il JE R R Y M.

NEFF,Õ R O B E R T E. H IL L M A N,Õ R. S C O T T CARR,Õ R O S A N N A L. B U H L Õ and JO A N N E I. L A H E Y Õ (R eceived 12 Ju n e ; accepted in revised form 3 D ecem ber 1 9 8 6). A Sea Otter in Washington was confirmed to have died from CDV inthe first reported case, but 80% of 32 live-captured Sea Otters in Washington in and and 20% of 42 live-captured Sea Otters in British Columbia in and tested seropositive for exposure to morbilliviruses (Shrubsole et al.

; Brancato et al. sea otters were legally protected in by the International fur Seal Treaty (Service ). There are three recognized subspecies of sea otters: the Russian or Asian sea otter (E. lutris); the Alaskan or northern sea otter (E. kenyoni); and the California or southern sea otter (E.

nereis). The southern sea otter has the most. lignose emperor " Lethrinus elongates" to crude oil exposure Shaikh Omar A. Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia E-mail: [email protected] Accep December, The histological effect of crude petroleum oil on the intestine of lignose emperor " Lethrinus elongates".

The first was to investigate the relative sensitivity of the deep‐sea species Anoplopoma fimbria (sablefish) to acute effects of 3 aromatic compounds (toluene, 2‐methylnaphthalene, and phenanthrene), dispersant alone, and chemically enhanced water accommodated fractions (CEWAFs) of Alaskan North Slope crude oil.

The second was to determine Cited by: 9. from immune-depressing clinical conditions related to crude oil exposure. Chapter 5 considers diagnosis and treatment of common clinical disorders of oiled sea otters, including a useful discussion of the common renal, hepatic, and hematological problems and excellent summary tables of syndromes, symp-toms, and treatments.

The book concludes with a chapter discussing responsible care and takes a critical look at the reasons why the Deepwater Horizon Rig catastrophe happened and the failure of British Petroleum to act in a responsible t: Chapter 1 Toxic Nature of Crude Oil (pages 1–35): Chapter 2 Origins of Spills (pages 37–54).

Do differences in skull morphology and bite performance explain dietary specialization in sea otters. Kristin M. CaMpbell* and sharlene e. santana Department of Biology and Burke Museum of Natural History and Culture, University of Washington, BoxSeattle, WAFile Size: KB. Offshore Petroleum Resource Development and Marine Mammals Published by Guset User, Description: Offshore Petroleum Resource Development and Marine Mammals: A Review and Research Recommendations J.

R. GERACI and D. J. St. AUBIN Introduction The possible effects. Determine whether sea otter T. gondii brain infection and seropositivity are associated with specific risk factors, including age, sex, geographic distribution and month of sampling.

Status. Toxoplasma gondii seropositivity in sea otters sampled between and was 42 % (49/) for live otters and 62% (66/) for dead otters.KEYWORDS: Caretta caretta, crude oil, loggerhead, Particularly Sensitive Sea Area, sea turtle Read Abstract + We report the number of strandings caused by crude oil among loggerhead turtles (Caretta caretta) in the Canary Islands between and and analyze the impact of the designation of the Canary Islands as a Particularly Sensitive.

80530 views Tuesday, November 10, 2020