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Oleforuh-Okoleh VU, Sikiru AB, Kakulu II, Fakae BB, Obianwuna UE, Shoyombo AJ, Adeolu AI, Ollor OA, Emeka OC. Improving hydrocarbon toxicity tolerance in poultry: role of genes and antioxidants. Front Genet 2023; 14:1060138. [PMID: 37388938 PMCID: PMC10302211 DOI: 10.3389/fgene.2023.1060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 05/23/2023] [Indexed: 07/01/2023] Open
Abstract
Sustenance of smallholder poultry production as an alternative source of food security and income is imperative in communities exposed to hydrocarbon pollution. Exposure to hydrocarbon pollutants causes disruption of homeostasis, thereby compromising the genetic potential of the birds. Oxidative stress-mediated dysfunction of the cellular membrane is a contributing factor in the mechanism of hydrocarbon toxicity. Epidemiological studies show that tolerance to hydrocarbon exposure may be caused by the activation of genes that control disease defense pathways like aryl hydrocarbon receptor (AhR) and nuclear factor erythroid 2p45-related factor 2 (Nrf2). Disparity in the mechanism and level of tolerance to hydrocarbon fragments among species may exist and may result in variations in gene expression within individuals of the same species upon exposure. Genomic variability is critical for adaptation and serves as a survival mechanism in response to environmental pollutants. Understanding the interplay of diverse genetic mechanisms in relation to environmental influences is important for exploiting the differences in various genetic variants. Protection against pollutant-induced physiological responses using dietary antioxidants can mitigate homeostasis disruptions. Such intervention may initiate epigenetic modulation relevant to gene expression of hydrocarbon tolerance, enhancing productivity, and possibly future development of hydrocarbon-tolerant breeds.
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Affiliation(s)
| | - Akeem B. Sikiru
- Department of Animal Science, Federal University of Agriculture, Zuru, Kebbi State, Nigeria
| | - Iyenemi I. Kakulu
- Department of Estate Management, Faculty of Environmental Sciences, Rivers State University, Port Harcourt, Nigeria
| | - Barineme B. Fakae
- Department of Animal and Environmental Biology, Rivers State University, Port Harcourt, Rivers State, Nigeria
| | | | - Ayoola J. Shoyombo
- Department of Animal Science, College of Agricultural Science, Landmark University, Omu-aran, Kwara State, Nigeria
| | - Adewale I. Adeolu
- Department of Agriculture, Animal Science Programme, Alex-Ekwueme Federal University, Ikwo, Ebonyi, Nigeria
| | - Ollor A. Ollor
- Department of Medical Laboratory Science, Faculty of Science, Rivers State University, Port Harcourt, Rivers State, Nigeria
| | - Onyinyechi C. Emeka
- Department of Animal Science, Rivers State University, Port Harcourt, Rivers State, Nigeria
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2
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Dong R, Lv C, Weng C, Lian A, Zhang L, Chen J, Ye M. Environmental damage compensation for illegal solid waste dumping in China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114657. [PMID: 36807058 DOI: 10.1016/j.ecoenv.2023.114657] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/28/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
China aims to improve its system for pursuing environmental damage compensation environmental violation cases. To hold violators accountable, China has an effective system for the identification and assessment (I&A) of environmental damage. This study selected a typical case of the illegal dumping of solid waste (IDSW) in China to analyze the causes, the degree, and characteristics of environmental damage, focusing on components such as the physical quantification and valuation of damage. The findings were as follows: (1) Compensation claimants and obligors consider baseline damage confirmation and causality analysis key components of I&A. (2) The I&A process for a specific case needs to focus on key nodes such as the type, location, and duration of IDSW. (3) Restraining IDSW requires accurately quantifying the physical and value-related losses caused by solid waste dumping. (4) In the selected case study, the damage from environmental contamination caused by the IDSW incident amounted to 3938,990 yuan, including an environmental damage value of 3651,990 yuan and a transaction cost of 287,000 yuan. Both parties accepted the I&A calculation process in this case, and the desired punishment effect was achieved. Hence, the case study demonstrated that accurate I&A is the technical basis for environmental damage compensation. Thus, in the future, more attention should be paid to the role of scientific and technological means and knowledge reserves in the I&A of environmental damage.
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Affiliation(s)
- Rencai Dong
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Chencan Lv
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Chen Weng
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Anxin Lian
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Lulu Zhang
- Guangdong Provincial Academy of Environmental Sciences, Guangzhou 510045, China.
| | - Jialiang Chen
- Guangdong Provincial Academy of Environmental Sciences, Guangzhou 510045, China.
| | - Mai Ye
- Guangdong Provincial Academy of Environmental Sciences, Guangzhou 510045, China.
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3
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West BM, Wildhaber ML, Aagaard KJ, Thogmartin WE, Moore AP, Hooper MJ. Migration and energetics model predicts delayed migration and likely starvation in oiled waterbirds. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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DSS-OSM: An Integrated Decision Support System for Offshore Oil Spill Management. WATER 2021. [DOI: 10.3390/w14010020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The marine ecosystem, human health and social economy are always severely impacted once an offshore oil spill event has occurred. Thus, the management of oil spills is of importance but is difficult due to constraints from a number of dynamic and interactive processes under uncertain conditions. An integrated decision support system is significantly helpful for offshore oil spill management, but it is yet to be developed. Therefore, this study aims at developing an integrated decision support system for supporting offshore oil spill management (DSS-OSM). The DSS-OSM was developed with the integration of a Monte Carlo simulation, artificial neural network and simulation-optimization coupling approach to provide timely and effective decision support to offshore oil spill vulnerability analysis, response technology screening and response devices/equipment allocation. In addition, the uncertainties and their interactions were also analyzed throughout the modeling of the DSS-OSM. Finally, an offshore oil spill management case study was conducted on the south coast of Newfoundland, Canada, demonstrating the feasibility of the developed DSS-OSM.
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Fallon JA, Goodchild C, DuRant SE, Cecere T, Sponenberg DP, Hopkins WA. Hematological and histological changes from ingestion of Deepwater Horizon crude oil in zebra finches (Taeniopygia guttata). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118026. [PMID: 34479165 DOI: 10.1016/j.envpol.2021.118026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Exposure to crude oil during spill events causes a variety of pathologic effects in birds, including oxidative injury to erythrocytes, which is characterized in some species by the formation of Heinz bodies and subsequent anemia. However, not all species appear to develop Heinz bodies or anemia when exposed to oil, and there are limited controlled experiments that use both light and electron microscopy to evaluate structural changes within erythrocytes following oil exposure. In this study, we orally dosed zebra finches (Taeniopygia guttata) with 3.3 or 10 mL/kg of artificially weathered Deepwater Horizon crude oil or 10 mL/kg of peanut oil (vehicle control) daily for 15 days. We found that birds receiving the highest dosage experienced a significant increase in reticulocyte percentage, mean corpuscular hemoglobin concentration, and liver mass, as well as inflammation of the gastrointestinal tract and lymphocyte proliferation in the spleen. However, we found no evidence of Heinz body formation based on both light and transmission electron microscopy. Although there was a tendency for packed cell volume and hemoglobin to decrease in birds from the high dose group compared to control and low dose groups, the changes were not statistically significant. Our results indicate that additional experimental dosing studies are needed to understand factors (e.g., dose- and species-specific sensitivity) and confounding variables (e.g., dispersants) that contribute to the presence and severity of anemia resulting from oil exposure in birds.
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Affiliation(s)
- Jesse A Fallon
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA.
| | | | - Sarah E DuRant
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Thomas Cecere
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - D Phillip Sponenberg
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - William A Hopkins
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
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6
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Takeshita R, Bursian SJ, Colegrove KM, Collier TK, Deak K, Dean KM, De Guise S, DiPinto LM, Elferink CJ, Esbaugh AJ, Griffitt RJ, Grosell M, Harr KE, Incardona JP, Kwok RK, Lipton J, Mitchelmore CL, Morris JM, Peters ES, Roberts AP, Rowles TK, Rusiecki JA, Schwacke LH, Smith CR, Wetzel DL, Ziccardi MH, Hall AJ. A review of the toxicology of oil in vertebrates: what we have learned following the Deepwater Horizon oil spill. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2021; 24:355-394. [PMID: 34542016 DOI: 10.1080/10937404.2021.1975182] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the wake of the Deepwater Horizon (DWH) oil spill, a number of government agencies, academic institutions, consultants, and nonprofit organizations conducted lab- and field-based research to understand the toxic effects of the oil. Lab testing was performed with a variety of fish, birds, turtles, and vertebrate cell lines (as well as invertebrates); field biologists conducted observations on fish, birds, turtles, and marine mammals; and epidemiologists carried out observational studies in humans. Eight years after the spill, scientists and resource managers held a workshop to summarize the similarities and differences in the effects of DWH oil on vertebrate taxa and to identify remaining gaps in our understanding of oil toxicity in wildlife and humans, building upon the cross-taxonomic synthesis initiated during the Natural Resource Damage Assessment. Across the studies, consistency was found in the types of toxic response observed in the different organisms. Impairment of stress responses and adrenal gland function, cardiotoxicity, immune system dysfunction, disruption of blood cells and their function, effects on locomotion, and oxidative damage were observed across taxa. This consistency suggests conservation in the mechanisms of action and disease pathogenesis. From a toxicological perspective, a logical progression of impacts was noted: from molecular and cellular effects that manifest as organ dysfunction, to systemic effects that compromise fitness, growth, reproductive potential, and survival. From a clinical perspective, adverse health effects from DWH oil spill exposure formed a suite of signs/symptomatic responses that at the highest doses/concentrations resulted in multi-organ system failure.
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Affiliation(s)
- Ryan Takeshita
- Conservation Medicine, National Marine Mammal Foundation, San Diego, California, United States
| | - Steven J Bursian
- Department of Animal Science, Michigan State University, East Lansing, Michigan, United States
| | - Kathleen M Colegrove
- College of Veterinary Medicine, Illinois at Urbana-Champaign, Brookfield, Illinois, United States
| | - Tracy K Collier
- Zoological Pathology Program, Huxley College of the Environment, Western Washington University, Bellingham, Washington, United States
| | - Kristina Deak
- College of Marine Sciences, University of South Florida, St. Petersburg, Florida, United States
| | | | - Sylvain De Guise
- Department of Pathobiology and Veterinary Sciences, University of Connecticut, Storrs, Connecticut, United States
| | - Lisa M DiPinto
- Office of Response and Restoration, NOAA, Silver Spring, Maryland, United States
| | - Cornelis J Elferink
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas, United States
| | - Andrew J Esbaugh
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, United States
| | - Robert J Griffitt
- Division of Coastal Sciences, School of Ocean Science and Engineering, University of Southern Mississippi, Gulfport, Mississippi, United States
| | - Martin Grosell
- RSMAS, University of Miami, Miami, Florida, United States
| | | | - John P Incardona
- NOAA Environmental Conservation Division, Northwest Fisheries Science Center, Seattle, Washington, United States
| | - Richard K Kwok
- Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, North Carolina, United States
| | | | - Carys L Mitchelmore
- University of Maryland Center of Environmental Science, Chesapeake Biological Laboratory, Solomons, Maryland, United States
| | - Jeffrey M Morris
- Health and Environment Division, Abt Associates, Boulder, Colorado, United States
| | - Edward S Peters
- Department of Epidemiology, LSU School of Public Health, New Orleans, Louisiana, United States
| | - Aaron P Roberts
- Advanced Environmental Research Institute and Department of Biological Sciences, University of North Texas, Denton, Texas, United States
| | - Teresa K Rowles
- NOAA Office of Protected Resources, National Marine Fisheries Service, Silver Spring, Maryland, United States
| | - Jennifer A Rusiecki
- Department of Preventive Medicine and Biostatistics, Uniformed Services University, Bethesda, Maryland, United States
| | - Lori H Schwacke
- Conservation Medicine, National Marine Mammal Foundation, San Diego, California, United States
| | - Cynthia R Smith
- Conservation Medicine, National Marine Mammal Foundation, San Diego, California, United States
| | - Dana L Wetzel
- Environmental Laboratory of Forensics, Mote Marine Laboratory, Sarasota, Florida, United States
| | - Michael H Ziccardi
- School of Veterinary Medicine, One Health Institute, University of California, Davis, California, United States
| | - Ailsa J Hall
- Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, St Andrews, UK
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7
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Hart ME, Perez-Umphrey A, Stouffer PC, Burns CB, Bonisoli-Alquati A, Taylor SS, Woltmann S. Nest survival of Seaside Sparrows (Ammospiza maritima) in the wake of the Deepwater Horizon oil spill. PLoS One 2021; 16:e0259022. [PMID: 34699553 PMCID: PMC8547620 DOI: 10.1371/journal.pone.0259022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 10/11/2021] [Indexed: 11/18/2022] Open
Abstract
In 2010, the Deepwater Horizon oil spill released an estimated 4.9 million barrels of oil into the Gulf of Mexico, damaging coastal ecosystems. Seaside Sparrows (Ammospiza maritima)-a year-round resident of Gulf Coast salt marshes-were exposed to oil, as shown by published isotopic and molecular analyses, but fitness consequences have not been clarified. We monitored nests around two bays in Plaquemines Parish, Louisiana, USA from 2012-2017 to assess possible impacts on the nesting biology of Seaside Sparrows. A majority of nests failed (76% of known-fate nests, N = 252 nests, 3521 exposure-days) during our study, and predation was the main cause of nest failure (~91% of failed nests). Logistic exposure analysis revealed that daily nest survival rate: (1) was greater at nests with denser vegetation at nest height, (2) was higher in the more sheltered bay we studied, (3) decreased over the course of the breeding season in each year, and (4) was not correlated with either sediment polycyclic aromatic hydrocarbon concentrations or estimated predator abundance during the years for which we had those data. Although the Deepwater Horizon spill impacted other aspects of Seaside Sparrow ecology, we found no definitive effect of initial oiling or oiled sediment on nest survival during 2012-2017. Because predation was the overwhelming cause of nest failure in our study, additional work on these communities is needed to fully understand demographic and ecological impacts of storms, oil spills, other pollutants, and sea-level rise on Seaside Sparrows and their predators.
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Affiliation(s)
- Megan E Hart
- Center of Excellence for Field Biology, and Department of Biology, Austin Peay State University, Clarksville, TN, United States of America
| | - Anna Perez-Umphrey
- School of Renewable Natural Resources, Louisiana State University and AgCenter, Baton Rouge, LA, United States of America
| | - Philip C Stouffer
- School of Renewable Natural Resources, Louisiana State University and AgCenter, Baton Rouge, LA, United States of America
| | - Christine Bergeon Burns
- School of Renewable Natural Resources, Louisiana State University and AgCenter, Baton Rouge, LA, United States of America
| | - Andrea Bonisoli-Alquati
- School of Renewable Natural Resources, Louisiana State University and AgCenter, Baton Rouge, LA, United States of America
| | - Sabrina S Taylor
- School of Renewable Natural Resources, Louisiana State University and AgCenter, Baton Rouge, LA, United States of America
| | - Stefan Woltmann
- Center of Excellence for Field Biology, and Department of Biology, Austin Peay State University, Clarksville, TN, United States of America
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8
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do Amaral-Silva L, Rojas-Antich MC, Dubansky B, Tazawa H, Burggren WW. Embryotoxicity and Physiological Compensation in Chicken Embryos Exposed to Crude Oil. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2347-2358. [PMID: 33930207 DOI: 10.1002/etc.5105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Terrestrial, marine, or aquatic oil spills can directly or indirectly contaminate bird eggs. We hypothesized that chicken embryos exposed to crude oil can physiologically compensate to mitigate the potentially toxic effect of lower doses of oil. Embryos exposed to 0, 1, 3, or 5 µL of oil on embryonic days 4 and 10 were initially analyzed for mortality. All oil doses decreased day 4 embryo survival, but only the 2 highest oil doses lowered survival when applied on day 10. Thus, day 15 embryos treated with 1, 3, and 5 µL of source oil on day 10 had arterialized blood analyzed. The hematological variables hematocrit, red blood cell concentration ([RBC]), and hemoglobin concentration increased in response to 1 µL, were unchanged by 3 µL, and decreased by 5 µL of oil treatment. No changes occurred in arterialized blood gas variables (partial pressure of O2 [PO2 ], pH, bicarbonate concentration) for 1 and 3 µL embryos, but 5 µL of oil decreased PO2 and caused metabolic acidosis. Increased blood lactate in embryos treated with 3 and 5 µL of oil was correlated with decreased hematocrit and [RBC] and increased body mass, the latter likely reflecting edema. We conclude that embryos in middle development physiologically compensated for negative effects of lower doses of crude oil but that higher doses of oil were harmful to the embryos at all developmental stages. Environ Toxicol Chem 2021;40:2347-2358. © 2021 SETAC.
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Affiliation(s)
- Lara do Amaral-Silva
- Developmental Integrative Biology, Department of Biological Sciences, University of North Texas, Denton, Texas, USA
- Integrative Thermal Physiology, Department of Animal Morphology and Physiology, São Paulo State University, Jaboticabal, São Paulo, Brazil
| | - Maria Carolina Rojas-Antich
- Developmental Integrative Biology, Department of Biological Sciences, University of North Texas, Denton, Texas, USA
| | - Benjamin Dubansky
- Developmental Integrative Biology, Department of Biological Sciences, University of North Texas, Denton, Texas, USA
| | - Hiroshi Tazawa
- Developmental Integrative Biology, Department of Biological Sciences, University of North Texas, Denton, Texas, USA
| | - Warren W Burggren
- Developmental Integrative Biology, Department of Biological Sciences, University of North Texas, Denton, Texas, USA
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9
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Bautista NM, do Amaral-Silva L, Dzialowski E, Burggren WW. Dietary Exposure to Low Levels of Crude Oil Affects Physiological and Morphological Phenotype in Adults and Their Eggs and Hatchlings of the King Quail ( Coturnix chinensis). Front Physiol 2021; 12:661943. [PMID: 33897469 PMCID: PMC8063051 DOI: 10.3389/fphys.2021.661943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/19/2021] [Indexed: 12/11/2022] Open
Abstract
Despite the current knowledge of the devastating effects of external exposure to crude oil on animal mortality, the study of developmental, transgenerational effects of such exposure has received little attention. We used the king quail as an animal model to determine if chronic dietary exposure to crude oil in a parental population would affect morpho-physiological phenotypic variables in their immediate offspring generation. Adult quail were separated into three groups: (1) Control, and two experimental groups dietarily exposed for at least 3 weeks to (2) Low (800 PAH ng/g food), or (3) High (2,400 PAH ng/g food) levels of crude oil. To determine the parental influence on their offspring, we measured metabolic and respiratory physiology in exposed parents and in their non-exposed eggs and hatchlings. Body mass and numerous metabolic (e.g., O2 consumption, CO2 production) and respiratory (e.g., ventilation frequency and volume) variables did not vary between control and oil exposed parental groups. In contrast, blood PO2, PCO2, and SO2 varied among parental groups. Notably, water loss though the eggshell was increased in eggs from High oil level exposed parents. Respiratory variables of hatchlings did not vary between populations, but hatchlings obtained from High oil-exposed parents exhibited lower capacities to maintain body temperature while exposed to a cooling protocol in comparison to hatchlings from Low- and Control-derived parents. The present study demonstrates that parental exposure to crude oil via diet impacts some aspects of physiological performance of the subsequent first (F1) generation.
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Affiliation(s)
- Naim M Bautista
- Zoophysiology, Department of Biology, Aarhus University, Aarhus, Denmark.,Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, United States
| | - Lara do Amaral-Silva
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, United States.,Department of Animal Morphology and Physiology, College of Agricultural and Veterinarian Sciences, São Paulo State University, São Paulo, Brazil
| | - Edward Dzialowski
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, United States
| | - Warren W Burggren
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas, Denton, TX, United States
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10
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Goodchild CG, Love AC, Krall JB, DuRant SE. Weathered Mississippi Canyon 252 crude oil ingestion alters cytokine signaling, lowers heterophil:lymphocyte ratio, and induces sickness behavior in zebra finches (Taeniopygia guttata). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115302. [PMID: 33254636 DOI: 10.1016/j.envpol.2020.115302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 07/11/2020] [Accepted: 07/17/2020] [Indexed: 06/12/2023]
Abstract
The Deepwater Horizon (DWH) oil spill caused an estimated 100,000 bird mortalities. However, mortality estimates are often based on the number of visibly oiled birds and likely underestimate the true damage to avian populations as they do not include toxic effects from crude oil ingestion. Elevated susceptibility to disease has been postulated to be a significant barrier to recovery for birds that have ingested crude oil. Effective defense against pathogens involves integration of physiological and behavioral traits, which are regulated in-part by cytokine signaling pathways. In this study, we tested whether crude oil ingestion altered behavioral and physiological aspects of disease defense in birds. To do so, we used artificially weathered Mississippi Canyon 242 crude oil to orally dose zebra finches (Taeniopygia guttata) with 3.3 mL/kg or 10 mL/kg of crude oil or a control (peanut oil) for 14 days. We measured expression of cytokines (interleukin [IL]-1β, IL-6, IL-10) and proinflammatory pathways (NF-κB, COX-2) in the intestine, liver, and spleen (tissues that exhibit pathology in oil-exposed birds). We also measured heterophil:lymphocyte (H:L) ratio and complement system activity, and video-recorded birds to analyze sickness behavior. Finches that ingested crude oil exhibited tissue-specific changes in cytokine mRNA expression. Proinflammatory cytokine expression decreased in the intestine but increased in the liver and spleen. Birds exposed to crude oil had lower H:L ratios compared to the control on day 14, but there were no differences in complement activity among treatments. Additionally, birds exposed to 10 mL/kg crude oil had reduced activity, indicative of sickness behavior. Our results suggest cytokines play a role in mediating physiological and behavioral responses to crude oil ingestion. Although most avian population damage assessments focus on mortality caused by external oiling, crude oil ingestion may also indirectly affect survival by altering physiological and behavioral traits important for disease defense.
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Affiliation(s)
- Christopher G Goodchild
- Oklahoma State University, Department of Integrative Biology, 501 Life Sciences West, Stillwater, OK, 74078, USA; Virginia Tech, Biological Sciences, 926 West Campus Dr., Blacksburg, VA, 24061, USA.
| | - Ashley C Love
- Oklahoma State University, Department of Integrative Biology, 501 Life Sciences West, Stillwater, OK, 74078, USA; University of Arkansas, Department of Biological Sciences, 601 Science and Engineering, Fayetteville, AR, 72701, USA
| | - Jeffrey B Krall
- Oklahoma State University, Department of Integrative Biology, 501 Life Sciences West, Stillwater, OK, 74078, USA
| | - Sarah E DuRant
- University of Arkansas, Department of Biological Sciences, 601 Science and Engineering, Fayetteville, AR, 72701, USA
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11
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Goodchild CG, Grisham K, Belden JB, DuRant SE. Effects of sublethal application of Deepwater Horizon oil to bird eggs on embryonic heart and metabolic rate. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2020; 34:1262-1270. [PMID: 32424950 DOI: 10.1111/cobi.13539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/26/2020] [Accepted: 02/03/2020] [Indexed: 06/11/2023]
Abstract
Following large crude oil spills, oil from feathers of brooding birds and oiled nesting material can transfer to eggs, resulting in reduced embryonic viability for heavily oiled eggs. Eggs may also be subjected to trace or light oiling, but functional teratogenic effects from sublethal crude oil exposure have not been examined. We assessed whether sublethal application of weathered Deepwater Horizon crude oil to the eggshell surface alters heart rate and metabolic rate in Zebra Finch (Taeniopygia guttata) embryos. We first determined sublethal applications with a dosing experiment. Embryo viability for eggs exposed to 5 μL or more of crude oil decreased significantly. We conducted a second experiment to measure heart rate and metabolic rate (CO2 production) 5 and 9 d after 1 sublethal application of crude oil to eggshells on day 3 of incubation. One application of 1.0 or 2.5 µL of crude oil reduced embryonic heart rate and metabolic rate on day 12 of incubation. Using unfertilized eggs, we measured the transfer of polycyclic aromatic hydrocarbons (PAHs) from the eggshell surface to egg contents 9 d after a single application of sublethal crude oil. Our results suggest avian eggs externally exposed to small amounts of crude oil may exhibit protracted embryonic development and impaired postnatal cardiac performance.
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Affiliation(s)
- Christopher G Goodchild
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, U.S.A
| | - Kevin Grisham
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, U.S.A
| | - Jason B Belden
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, U.S.A
| | - Sarah E DuRant
- Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK, 74078, U.S.A
- Department of Biological Sciences, University of Arkansas, 601 Science and Engineering, Fayetteville, AR, 72701, U.S.A
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12
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Dorr BS, Mathewson PD, Hanson-Dorr KC, Healy KA, Horak KE, Porter W. Landscape scale thermoregulatory costs from sublethal exposure to Deep Water Horizon oil in the double-crested cormorant. MARINE POLLUTION BULLETIN 2020; 152:110915. [PMID: 32479288 DOI: 10.1016/j.marpolbul.2020.110915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/13/2020] [Accepted: 01/13/2020] [Indexed: 06/11/2023]
Abstract
Toxic effects of heavy oiling to wildlife are well known from oil spills, although sublethal oil exposure effects are poorly understood. We used Niche Mapper™, to compute spatially and temporally specific energetic and behavioral impacts of repeated sublethal oil exposure to double-crested cormorants (Phalacrocorax auritus). During winter (October-March) cormorants exposed to 13 g, 39 g, and 65-78 g of oil, had on average a 31%, 59%, and 76% predicted increase in total resting energetic requirements (RMR) compared to unoiled birds, respectively. Increased RMR resulted in a mean (±SD) predicted increase in time spent foraging of 36 (±13) min·d-1. During the breeding season (April-September), cormorants had on average a 29%, 57% and 73% increase in total RMR and the mean predicted increase in time spent foraging was 131 (±49) min·d-1. Thermoregulatory effects of sublethal oil exposure may cause greater impacts to bird populations than is currently understood.
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Affiliation(s)
- Brian S Dorr
- U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, P.O. Box 6099, Mississippi State, MS 39762, USA.
| | - Paul D Mathewson
- Department of Integrative Biology, University of Wisconsin-Madison, 250 North Mills Street, Madison, WI 53706, USA
| | - Katie C Hanson-Dorr
- U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, P.O. Box 6099, Mississippi State, MS 39762, USA
| | - Katherine A Healy
- U.S. Fish and Wildlife Service, Natural Resource Damage Assessment Regional Field Office, 341 Greeno Road North, Suite A, Fairhope, AL 36532, USA
| | - Katherine E Horak
- U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, 4101 LaPorte Ave., Fort Collins, CO 80521, USA
| | - Warren Porter
- Department of Integrative Biology, University of Wisconsin-Madison, 250 North Mills Street, Madison, WI 53706, USA
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Dannemiller NG, Horak KE, Ellis JW, Barrett NL, Wolfe LL, Shriner SA. Effects of External Oiling and Rehabilitation on Hematological, Biochemical, and Blood Gas Analytes in Ring-Billed Gulls ( Larus delawarensis). Front Vet Sci 2019; 6:405. [PMID: 31803767 PMCID: PMC6877692 DOI: 10.3389/fvets.2019.00405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/31/2019] [Indexed: 11/13/2022] Open
Abstract
Avian species experience extensive morbidity and mortality following large-scale oil spills, often resulting in oiled birds being rescued, and admitted to rehabilitation. Our objective was to experimentally establish time-specific, descriptive blood analyte data following sublethal oil exposure and subsequent rehabilitation. Thirty wild Ring-billed Gulls (Larus delawarensis) were randomly allocated to three treatment groups of 10 birds each. One treatment group served as controls and two treatment groups were externally oiled daily for 3 days with weathered MC252 oil collected from the Deepwater Horizon oil spill, mimicking the upper threshold of the US Fish and Wildlife Service's moderate oiling classification. Following external oiling, one oiled treatment group was cleaned via standard rehabilitation practices. Serial venous blood samples were collected for a month to measure packed cell volume, total solids, blood gas and select plasma biochemistry analytes, total white blood cell estimates and differentials, and reticulocyte estimates. We found that both sublethal oil exposure and aspects of captivity were associated with a mild non-regenerative anemia. No other differences in venous blood gas and biochemical analytes as well as white blood cell concentrations were observed among the three groups. These findings suggest that the mild anemia seen in oiled birds undergoing rehabilitation is possibly multifactorial and that moderately oiled gulls have subtle, but potentially not insignificant clinicopathological abnormalities following sublethal oil exposure. Oiled gulls did not develop any clinicopathological derangements post-rehabilitation, suggesting current standard practices for rehabilitation cause minimal morbidity in clinically stable, moderately oiled gulls.
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Affiliation(s)
- Nicholas G Dannemiller
- US Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States.,Department of Clinical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Katherine E Horak
- US Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
| | - Jeremy W Ellis
- US Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
| | - Nicole L Barrett
- US Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
| | - Lisa L Wolfe
- Wildlife Health Program, Colorado Parks and Wildlife, Fort Collins, CO, United States
| | - Susan A Shriner
- US Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
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14
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Fernie KJ, Marteinson SC, Chen D, Palace V, Peters L, Soos C, Smits JEG. Changes in thyroid function of nestling tree swallows (Tachycineta bicolor) in relation to polycyclic aromatic compounds and other environmental stressors in the Athabasca Oil Sands Region. ENVIRONMENTAL RESEARCH 2019; 169:464-475. [PMID: 30530086 DOI: 10.1016/j.envres.2018.11.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 05/05/2023]
Abstract
In the Canadian Athabasca Oil Sands Region (AOSR), nestling tree swallows (Tachycineta bicolor) raised near mining-related activities accumulated greater concentrations of polycyclic aromatic compounds (PACs) that contributed to their poorer condition, growth, and reproductive success. Here, we report changes in thyroid function of the same 14 day old (do) nestlings (N ≤ 68) at these mining-related sites (OS1, OS2) compared to reference nestlings (REF1), and in relation to multiple environmental stressors that influence avian thyroid function. Thyroid function was compromised for OS1 nestlings but generally comparable between OS2 and REF1 chicks. In 2012, circulating total triiodothyronine (TT3) and thyroxine (TT4) were similar among all nestlings. The OS1 chicks had more active thyroid glands based on histological endpoints. Hepatic T4 outer-ring deiodinase (T4-ORD) activity was suppressed in OS1 and OS2 chicks. Despite inter-annual differences, OS1 chicks continued experiencing compromised thyroid function with significantly higher circulating TT4 and more active thyroid glands in 2013. The OS2 chicks had less active thyroid glands, which conceivably contributed to their suppressed growth (previously reported) relative to the heavier OS1 nestlings with more active thyroid glands. Thyroid gland activity was more influenced by the chicks' accumulation of (muscle), than exposure (feces) to naphthalene, C2-naphthalenes, and C1-fluorenes. Of four major volatile organic contaminants, sulfur dioxide (SO2) primarily influenced thyroid gland activity and structure, supporting previous findings with captive birds. When collectively considering environmental-thyroidal stressors, chicks had a greater thyroidal response when they experienced colder temperatures, accumulated more C2-naphthalenes, and consumed aquatic-emerging insects with higher PAC burdens than terrestrial insects (carbon (δ13C)). We hypothesize that the more active thyroid glands and higher circulating TT4 of the OS1 chicks supported their growth and survival despite having the highest PAC burdens, whereas the lack of thyroid response in the OS2 chicks combined with high PAC burdens, contributed to their smaller size, poorer condition and poorer survival.
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Affiliation(s)
- K J Fernie
- Ecotoxicology & Wildlife Health Division, Science & Technology Branch, Environment and Climate Change Canada, Burlington, Ontario, Canada L7R 1A2.
| | - S C Marteinson
- Ecotoxicology & Wildlife Health Division, Science & Technology Branch, Environment and Climate Change Canada, Burlington, Ontario, Canada L7R 1A2
| | - D Chen
- School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - V Palace
- International Institute for Sustainable Development - Experimental Lakes Area, 111 Lombard Avenue, Suite 325, Winnipeg, Manitoba, Canada R3B 0T4
| | - L Peters
- Riddell Faculty of Earth Environment and Resources, University of Manitoba, 125 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2
| | - C Soos
- Ecotoxicology & Wildlife Health Division, Science & Technology Branch, Environment and Climate Change Canada, 115 Perimeter Rd, Saskatoon, Saskatchewan, Canada S7N 0X4
| | - J E G Smits
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta, Canada T2N 4Z6
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Dorr BS, Hanson-Dorr KC, Assadi-Porter FM, Selen ES, Healy KA, Horak KE. Effects of Repeated Sublethal External Exposure to Deep Water Horizon Oil on the Avian Metabolome. Sci Rep 2019; 9:371. [PMID: 30674908 PMCID: PMC6344488 DOI: 10.1038/s41598-018-36688-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 11/23/2018] [Indexed: 12/19/2022] Open
Abstract
We assessed adverse effects of external sublethal exposure of Deepwater Horizon, Mississippi Canyon 252 oil on plasma and liver metabolome profiles of the double-crested cormorant (Phalacrocorax auritus), a large (1.5 to 3.0 kg) diving waterbird common in the Gulf of Mexico. Metabolomics analysis of avian plasma showed significant negative effects on avian metabolic profiles, in some cases after only two external exposures (26 g cumulative) to oil. We observed significant (p < 0.05) changes in intermediate metabolites of energy metabolism and fatty acid and amino acid metabolic pathways in cormorants after repeated exposure to oil. Exposure to oil increased several metabolites (glycine, betaine, serine and methionine) that are essential to the one-carbon metabolism pathway. Lipid metabolism was affected, causing an increase in production of ketone bodies, suggesting lipids were used as an alternative energy source for energy production in oil exposed birds. In addition, metabolites associated with hepatic bile acid metabolism were affected by oil exposure which was correlated with changes observed in bile acids in exposed birds. These changes at the most basic level of phenotypic expression caused by sublethal exposure to oil can have effects that would be detrimental to reproduction, migration, and survival in avian species.
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Affiliation(s)
- Brian S Dorr
- US Department of Agriculture, Wildlife Services, National Wildlife Research Center, MS State, MS, 39762, USA.
| | - Katie C Hanson-Dorr
- US Department of Agriculture, Wildlife Services, National Wildlife Research Center, MS State, MS, 39762, USA
| | - Fariba M Assadi-Porter
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Ebru Selin Selen
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Katherine A Healy
- US Fish and Wildlife Service, Deepwater Horizon Natural Resource Damage Assessment and Restoration Office, Fairhope, AL, 36532, USA
| | - Katherine E Horak
- US Department of Agriculture, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, 80521, USA
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16
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Gartrell BD, Battley PF, Clumpner C, Dwyer W, Hunter S, Jensen M, McConnell HM, Michael S, Morgan KJ, Nijman P, Ward JM, White BJ, Ziccardi MH. Captive husbandry and veterinary care of seabirds during the MV Rena oil spill response. WILDLIFE RESEARCH 2019. [DOI: 10.1071/wr19006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
ContextSeabirds were the most common taxa captured alive as part of the oiled wildlife response to the grounding of the container vessel MV Rena in the Bay of Plenty, New Zealand.
AimsTo describe the management of seabirds during the spill response, to outline the common problems encountered and to make recommendations for future responses.
MethodsSeabirds were collected from 7 October 2011 to 14 January 2012. They were stabilised and underwent pretreatment, washing and rinsing procedures to remove oil, followed by swimming physiotherapy to restore waterproofing and long-term housing in outdoor aviaries. The birds were released in batches close to the original sites of capture once the wild habitat was cleaned.
Key results428 live seabirds were admitted. There were two temporal peaks in admissions associated with the ship grounding and when the ship broke up. The majority of live birds were little penguins (Eudyptula minor; 394/428, 92%). Most seabirds admitted (393/428, 91.8%) were contaminated with heavy fuel oil, with the remainder (35/428, 8.2%) found unoiled but starving and/or exhausted or with injuries. Little penguins had lower mortality during rehabilitation (28/394, 7.1%) than other seabird species combined (27/34, 79.4%). Seabirds in poorer body condition on arrival had higher mortality, and unoiled birds were also more likely to die than oiled birds. In oiled little penguins, the degree of oiling on the plumage ranged from 1 to 100%, but mortality was not significantly associated with the degree of oiling (P=0.887). Pododermatitis affected 66% of little penguins. The most common causes of death (n=45) included weakness, anaemia and hypothermia in oiled seabirds (16/45, 35.6%), and starvation and weakness in unoiled seabirds (14/45, 31.1%).
ConclusionsTotal survival to release was 87.1%, primarily influenced by the species involved and the body condition of the birds on arrival. Unoiled seabirds had higher mortality rates than oiled seabirds.
ImplicationsOiled wildlife can be rehabilitated with good success, even when heavily oiled, or to a lesser extent, when found in poor body condition. More work is needed to refine species-specific rehabilitation protocols for seabirds, especially for those being admitted in emaciated body condition.
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Bianchini K, Morrissey CA. Assessment of Shorebird Migratory Fueling Physiology and Departure Timing in Relation to Polycyclic Aromatic Hydrocarbon Contamination in the Gulf of Mexico. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13562-13573. [PMID: 30362719 DOI: 10.1021/acs.est.8b04571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Shorebirds depend on staging sites in the Gulf of Mexico that are frequently subject to pollution by oil and its toxic constituents, polycyclic aromatic hydrocarbons (PAHs). It was hypothesized that PAH contamination lowers staging site quality for migratory shorebirds, with consequences for fueling and departure timing. Sediment total PAH concentrations were measured at six staging sites along the Texas and Louisiana Gulf Coast. Sites in Louisiana were expected to have higher total PAH concentrations as they were more heavily impacted by the Deepwater Horizon oil spill. From 2015 to 2017, 165 Sanderling ( Calidris alba) and 55 Red knots ( C. canutus) were captured at these same sites during their northward migration (late April to mid May). Mass, body morphometrics, and plasma metabolite measurements were taken to determine fuel loads and fueling rates, and a subset of birds (120 Sanderling and 39 Red knots) received a coded radio tag to determine departure dates using the Motus telemetry array. Compared to Texas sites, sediment in Louisiana had higher total PAH concentrations, dominated by heavier 6 ring indeno[1,2,3- cd]pyrene (48%). Plasma metabolite profiles suggested that fueling rates for Sanderling, but not Red knots, tended to be lower in Louisiana, and both species departed later than the study average from Louisiana. However, multiple factors, including migration patterns, food supply, and other contaminants, also likely influenced fueling and departures. PAH contamination in the Gulf of Mexico remains an ongoing issue that may be impacting the staging site quality and migration timing of long-distance migratory birds.
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18
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Dubansky B, Verbeck G, Mach P, Burggren W. Methodology for exposing avian embryos to quantified levels of airborne aromatic compounds associated with crude oil spills. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 58:163-169. [PMID: 29408758 DOI: 10.1016/j.etap.2018.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 01/09/2018] [Indexed: 06/07/2023]
Abstract
Oil spills on birds and other organisms have focused primarily on direct effects of oil exposure through ingestion or direct body fouling. Little is known of indirect effects of airborne volatiles from spilled oil, especially on vulnerable developing embryos within the bird egg. Here a technique is described for exposing bird embryos in the egg to quantifiable amounts of airborne volatile toxicants from Deepwater Horizon crude oil. A novel membrane inlet mass spectrometry system was used to measure major classes of airborne oil-derived toxicants and correlate these exposures with biological endpoints. Exposure induced a reduction in platelet number and increase in osmolality of the blood of embryos of the chicken (Gallus gallus). Additionally, expression of cytochrome P4501A, a protein biomarker of oil exposure, occurred in renal, pulmonary, hepatic and vascular tissues. These data confirm that this system for generating and measuring airborne volatiles can be used for future in-depth analysis of the toxicity of volatile organic compounds in birds and potentially other terrestrial organisms.
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Affiliation(s)
- Benjamin Dubansky
- University of North Texas, Department of Biological Sciences, Developmental Integrative Biology Cluster, 1155 Union Circle, Denton, TX, 76203, United States.
| | - Guido Verbeck
- University of North Texas, Department of Chemistry and Biochemistry, Laboratory for Imaging Mass Spectrometry, 1417 Hickory Street, Denton, TX, 76203, United States
| | - Phillip Mach
- University of North Texas, Department of Chemistry and Biochemistry, Laboratory for Imaging Mass Spectrometry, 1417 Hickory Street, Denton, TX, 76203, United States; Aberdeen Proving Ground, 5183 Balckhawk Rd, E3150, Gunpowder, MD, 21010, United States
| | - Warren Burggren
- University of North Texas, Department of Biological Sciences, Developmental Integrative Biology Cluster, 1155 Union Circle, Denton, TX, 76203, United States
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Harr KE, Rishniw M, Rupp TL, Cacela D, Dean KM, Dorr BS, Hanson-Dorr KC, Healy K, Horak K, Link JE, Reavill D, Bursian SJ, Cunningham FL. Dermal exposure to weathered MC252 crude oil results in echocardiographically identifiable systolic myocardial dysfunction in double-crested cormorants (Phalacrocorax auritus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 146:76-82. [PMID: 28666537 DOI: 10.1016/j.ecoenv.2017.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
During the Deepwater Horizon Natural Resource Damage Assessment, gross morphologic cardiac abnormalities, including softer, more distensible musculature, were noted upon gross necropsy in hearts from laughing gulls and double-crested cormorants exposed to weathered MC252 crude oil. A species specific, echocardiographic technique was developed for antemortem evaluation of function that was used to evaluate and better characterize cardiac dysfunction. Control (n=12) and treated (n=13) cormorant groups of similar sex-ratio and ages were dermally treated with approximately 13ml of water or weathered MC252 crude oil, respectively, every 3 days for 6 dosages. This resulted in a low to moderate external exposure. Upon visualization and clinical assessment of the hearts of all test subjects, comprehensive diagnostic cardiographic measurements were taken twice, prior to oil application and after a 21day dermal oil exposure. Oil-treated birds showed a decrease in cardiac systolic function, as characterized by an increased left ventricular internal dimension-systole and left ventricular stroke volume as well as concurrent decreased left ventricular ejection fraction and left ventricular fractional shortening when compared to both control birds' and the treated birds' time zero values. These changes are indicative of a possible dilative cardiomyopathy induced by oil exposure, although further elucidation of possible collagen damage is recommended. Arrhythmias including tachycardia in two treated birds and bradycardia in all treated birds were documented, indicating further clinically significant abnormalities induced by MC252 oil that warrant further investigation. A statistically significant increase in free calcium concentration, important to muscular and neurologic function in treated birds was also noted. This study documents that weathered MC252 oil caused clinically significant cardiac dysfunction that could result in mortality and decrease recruitment.
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Affiliation(s)
| | - M Rishniw
- Veterinary Information Network, Davis, CA, USA
| | | | - D Cacela
- Abt Associates, Boulder, CO, USA
| | - K M Dean
- Abt Associates, Boulder, CO, USA
| | - B S Dorr
- USDA/APHIS/Wildlife Services/National Wildlife Research Center, Mississippi Field Station Center, Mississippi State, MS, USA
| | - K C Hanson-Dorr
- USDA/APHIS/Wildlife Services/National Wildlife Research Center, Mississippi Field Station Center, Mississippi State, MS, USA
| | - K Healy
- US Fish and Wildlife Service, Deepwater Horizon NRDAR Field Office, Fairhope, AL, USA
| | - K Horak
- USDA/APHIS/Wildlife Services/National Wildlife Research Center, Mississippi Field Station Center, Fort Collins, CO, USA
| | - J E Link
- Michigan State University, East Lansing, MI, USA
| | - D Reavill
- Zoo/Exotic Pathology Service, Carmichael, CA, USA
| | - S J Bursian
- Michigan State University, East Lansing, MI, USA
| | - F L Cunningham
- USDA/APHIS/Wildlife Services/National Wildlife Research Center, Mississippi Field Station Center, Mississippi State, MS, USA
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Alexander CR, Hooper MJ, Cacela D, Smelker KD, Calvin CS, Dean KM, Bursian SJ, Cunningham FL, Hanson-Dorr KC, Horak KE, Isanhart JP, Link J, Shriner SA, Godard-Codding CAJ. Reprint of: CYP1A protein expression and catalytic activity in double-crested cormorants experimentally exposed to Deepwater Horizon Mississippi Canyon 252 oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 146:68-75. [PMID: 28571624 DOI: 10.1016/j.ecoenv.2017.05.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/25/2017] [Accepted: 02/27/2017] [Indexed: 06/07/2023]
Abstract
Double-crested cormorants (Phalacrocorax auritus, DCCO) were orally exposed to Deepwater Horizon Mississippi Canyon 252 (DWH) oil to investigate oil-induced toxicological impacts. Livers were collected for multiple analyses including cytochrome P4501A (CYP1A) enzymatic activity and protein expression. CYP1A enzymatic activity was measured by alkoxyresorufin O-dealkylase (AROD) assays. Activities specific to the O-dealkylation of four resorufin ethers are reported: benzyloxyresorufin O-debenzylase (BROD), ethoxyresorufin O-deethylase (EROD), methoxyresorufin O-demethylase (MROD), and pentoxyresorufin O-depentylase (PROD). CYP1A protein expression was measured by western blot analysis with a CYP1A1 mouse monoclonal antibody. In study 1, hepatic BROD, EROD, and PROD activities were significantly induced in DCCO orally exposed to 20ml/kg body weight (bw) oil as a single dose or daily for 5 days. Western blot analysis revealed hepatic CYP1A protein induction in both treatment groups. In study 2 (5ml/kg bw oil or 10ml/kg bw oil, 21day exposure), all four hepatic ARODs were significantly induced. Western blots showed an increase in hepatic CYP1A expression in both treatment groups with a significant induction in birds exposed to 10ml/kg oil. Significant correlations were detected among all 4 AROD activities in both studies and between CYP1A protein expression and both MROD and PROD activities in study 2. EROD activity was highest for both treatment groups in both studies while BROD activity had the greatest fold-induction. While PROD activity values were consistently low, the fold-induction was high, usually 2nd highest to BROD activity. The observed induced AROD profiles detected in the present studies suggest both CYP1A4/1A5 DCCO isoforms are being induced after MC252 oil ingestion. A review of the literature on avian CYP1A AROD activity levels and protein expression after exposure to CYP1A inducers highlights the need for species-specific studies to accurately evaluate avian exposure to oil.
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Affiliation(s)
- Courtney R Alexander
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | - Michael J Hooper
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA
| | | | - Kim D Smelker
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | - Caleshia S Calvin
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | | | - Steve J Bursian
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Fred L Cunningham
- U.S. Department of Agriculture, National Wildlife Research Center-Mississippi Field Station, Mississippi State University, Starkville, MS, USA
| | - Katie C Hanson-Dorr
- U.S. Department of Agriculture, National Wildlife Research Center-Mississippi Field Station, Mississippi State University, Starkville, MS, USA
| | - Katherine E Horak
- U.S. Department of Agriculture, National Wildlife Research Center, Fort Collins, CO, USA
| | | | - Jane Link
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Susan A Shriner
- U.S. Department of Agriculture, National Wildlife Research Center, Fort Collins, CO, USA
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Cunningham F, Dean K, Hanson-Dorr K, Harr K, Healy K, Horak K, Link J, Shriner S, Bursian S, Dorr B. Reprint of: Development of methods for avian oil toxicity studies using the double crested cormorant (Phalacrocorax auritus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 146:19-28. [PMID: 28571622 DOI: 10.1016/j.ecoenv.2017.05.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/07/2023]
Abstract
Oral and external dosing methods replicating field exposure were developed using the double crested cormorant (DCCO) to test the toxicity of artificially weathered Deepwater Horizon Mississippi Canyon 252 oil. The majority of previous oil dosing studies conducted on wild-caught birds used gavage methods to dose birds with oil and determine toxicity. However, rapid gut transit time of gavaged oil likely reduces oil absorption. In the present studies, dosing relied on injection of oil into live feeder fish for oral dosing of these piscivorous birds, or applying oil to body contour feathers resulting in transdermal oil exposure and oral exposure through preening. Both oral and external oil dosing studies identified oil-related toxicity endpoints associated with oxidative stress such as hemolytic anemia, liver and kidney damage, and immuno-modulation or compromise. External oil application allowed for controlled study of thermoregulatory stress as well. Infrared thermal images indicated significantly greater surface temperatures and heat loss in treated birds following external oil applications; however, measurements collected by coelomically implanted temperature transmitters showed that internal body temperatures were stable over the course of the study period. Birds exposed to oil externally consumed more fish than control birds, indicating metabolic compensation for thermal stress. Conversely, birds orally dosed with oil experienced hypothermia and consumed less fish compared to control birds.
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Affiliation(s)
- Fred Cunningham
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States.
| | - Karen Dean
- Abt Associates, Boulder, CO, United States
| | - Katie Hanson-Dorr
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States
| | - Kendal Harr
- Urika Pathology LLC, Mukilteo, WA, United States
| | - Kate Healy
- US Fish and Wildlife Service, Deepwater Horizon NRDAR Field Office, Fairhope, AL, United States
| | - Katherine Horak
- USDA/ APHIS/Wildlife Services/National Wildlife Research Center, Ft. Collins, CO, United States
| | - Jane Link
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Susan Shriner
- USDA/ APHIS/Wildlife Services/National Wildlife Research Center, Ft. Collins, CO, United States
| | - Steven Bursian
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Brian Dorr
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States
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22
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Bursian SJ, Dean KM, Harr KE, Kennedy L, Link JE, Maggini I, Pritsos C, Pritsos KL, Schmidt RE, Guglielmo CG. Effect of oral exposure to artificially weathered Deepwater Horizon crude oil on blood chemistries, hepatic antioxidant enzyme activities, organ weights and histopathology in western sandpipers (Calidris mauri). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 146:91-97. [PMID: 28413080 DOI: 10.1016/j.ecoenv.2017.03.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 03/24/2017] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
Shorebirds were among birds exposed to Mississippi Canyon 252 (MC252) crude oil during the 2010 Deep Water Horizon (DWH) oil spill in the Gulf of Mexico. The western sandpiper (Calidris mauri) was chosen as one of four species for initial oral dosing studies conducted under Phase 2 of the avian toxicity studies for the DWH Natural Resource Damage Assessment (NRDA). Thirty western sandpipers were assigned to one of three treatment groups, 10 birds per group. The control group was sham gavaged and the treatment groups were gavaged with 1 or 5mL oil kg bw-1 daily for 20 days. Periodic blood samples for hemoglobin measurements were collected during the trial. A final blood sample used to determine hemoglobin concentration in addition to complete blood counts, plasma clinical chemistries, haptoglobin concentration and plasma electrophoresis was collected when birds were euthanized and necropsied on day 21. Tissues were removed, weighed and processed for subsequent histopathological evaluation. There were numerical decreases in hemoglobin concentrations in oil-dosed birds over the 21-day trial, but values were not significantly different compared to controls on day 21. There were no significant differences between controls and oiled birds in complete blood counts, plasma chemistries, haptoglobin concentration, and plasma electrophoresis endpoints. Of the hepatic oxidative stress endpoints assessed, the total antioxidant capacity assessment (Trolox equivalents) for the control group was lower compared to the 1mL oil kg bw-1 group. Absolute liver weights in the 5mL oil kg bw-1 group were significantly greater compared to controls. While not conclusive, the numerical decrease in hemoglobin concentration and significant increase in absolute liver weight are consistent with exposure to oil. Histological changes in the adrenal gland could be considered a non-specific indicator of stress resulting from exposure to oil. It is possible that the quantity of oil absorbed was not sufficient to induce clearly evident hemolytic anemia or that the western sandpiper is relatively insensitive to ingested oil.
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Affiliation(s)
- Steven J Bursian
- Department of Animal Science, Michigan State University, 474 South Shaw Lane, East Lansing, MI 48824, United States.
| | - Karen M Dean
- Abt Associates, 1881 Ninth St., Ste 201, Boulder, CO 80302-5148, United States.
| | | | - Lisa Kennedy
- Department of Biology, Advanced Facility for Avian Research, University of Western Ontario, London, ON, Canada N6G 1G9
| | - Jane E Link
- Department of Animal Science, Michigan State University, 474 South Shaw Lane, East Lansing, MI 48824, United States.
| | - Ivan Maggini
- Department of Biology, Advanced Facility for Avian Research, University of Western Ontario, London, ON, Canada N6G 1G9.
| | - Chris Pritsos
- University of Nevada-Reno, Max Fleischmann Agriculture Bldg. 210, Reno, NV 89557, USA.
| | - Karen L Pritsos
- University of Nevada-Reno, Max Fleischmann Agriculture Bldg. 210, Reno, NV 89557, USA
| | - R E Schmidt
- Zoo/Exotic Pathology Service, 6020 Rutland Drive #14, Carmichael, CA 95608, United States.
| | - Christopher G Guglielmo
- Department of Biology, Advanced Facility for Avian Research, University of Western Ontario, London, ON, Canada N6G 1G9.
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23
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Alexander CR, Hooper MJ, Cacela D, Smelker KD, Calvin CS, Dean KM, Bursian SJ, Cunningham FL, Hanson-Dorr KC, Horak KE, Isanhart JP, Link J, Shriner SA, Godard-Codding CAJ. CYP1A protein expression and catalytic activity in double-crested cormorants experimentally exposed to deepwater Horizon Mississippi Canyon 252 oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:79-86. [PMID: 28390242 DOI: 10.1016/j.ecoenv.2017.02.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/25/2017] [Accepted: 02/27/2017] [Indexed: 06/07/2023]
Abstract
Double-crested cormorants (Phalacrocorax auritus, DCCO) were orally exposed to Deepwater Horizon Mississippi Canyon 252 (DWH) oil to investigate oil-induced toxicological impacts. Livers were collected for multiple analyses including cytochrome P4501A (CYP1A) enzymatic activity and protein expression. CYP1A enzymatic activity was measured by alkoxyresorufin O-dealkylase (AROD) assays. Activities specific to the O-dealkylation of four resorufin ethers are reported: benzyloxyresorufin O-debenzylase (BROD), ethoxyresorufin O-deethylase (EROD), methoxyresorufin O-demethylase (MROD), and pentoxyresorufin O-depentylase (PROD). CYP1A protein expression was measured by western blot analysis with a CYP1A1 mouse monoclonal antibody. In study 1, hepatic BROD, EROD, and PROD activities were significantly induced in DCCO orally exposed to 20ml/kg body weight (bw) oil as a single dose or daily for 5 days. Western blot analysis revealed hepatic CYP1A protein induction in both treatment groups. In study 2 (5ml/kg bw oil or 10ml/kg bw oil, 21day exposure), all four hepatic ARODs were significantly induced. Western blots showed an increase in hepatic CYP1A expression in both treatment groups with a significant induction in birds exposed to 10ml/kg oil. Significant correlations were detected among all 4 AROD activities in both studies and between CYP1A protein expression and both MROD and PROD activities in study 2. EROD activity was highest for both treatment groups in both studies while BROD activity had the greatest fold-induction. While PROD activity values were consistently low, the fold-induction was high, usually 2nd highest to BROD activity. The observed induced AROD profiles detected in the present studies suggest both CYP1A4/1A5 DCCO isoforms are being induced after MC252 oil ingestion. A review of the literature on avian CYP1A AROD activity levels and protein expression after exposure to CYP1A inducers highlights the need for species-specific studies to accurately evaluate avian exposure to oil.
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Affiliation(s)
- Courtney R Alexander
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | - Michael J Hooper
- US Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA
| | | | - Kim D Smelker
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | - Caleshia S Calvin
- The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX, USA
| | | | - Steve J Bursian
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Fred L Cunningham
- US Department of Agriculture, National Wildlife Research Center-Mississippi Field Station, Mississippi State University, Starkville, MS, USA
| | - Katie C Hanson-Dorr
- US Department of Agriculture, National Wildlife Research Center-Mississippi Field Station, Mississippi State University, Starkville, MS, USA
| | - Katherine E Horak
- US Department of Agriculture, National Wildlife Research Center, Fort Collins, CO, USA
| | | | - Jane Link
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Susan A Shriner
- US Department of Agriculture, National Wildlife Research Center, Fort Collins, CO, USA
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24
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Cunningham F, Dean K, Hanson-Dorr K, Harr K, Healy K, Horak K, Link J, Shriner S, Bursian S, Dorr B. Development of methods for avian oil toxicity studies using the double crested cormorant (Phalacrocorax auritus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 141:199-208. [PMID: 28349871 DOI: 10.1016/j.ecoenv.2017.03.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
Oral and external dosing methods replicating field exposure were developed using the double crested cormorant (DCCO) to test the toxicity of artificially weathered Deepwater Horizon Mississippi Canyon 252 oil. The majority of previous oil dosing studies conducted on wild-caught birds used gavage methods to dose birds with oil and determine toxicity. However, rapid gut transit time of gavaged oil likely reduces oil absorption. In the present studies, dosing relied on injection of oil into live feeder fish for oral dosing of these piscivorous birds, or applying oil to body contour feathers resulting in transdermal oil exposure and oral exposure through preening. Both oral and external oil dosing studies identified oil-related toxicity endpoints associated with oxidative stress such as hemolytic anemia, liver and kidney damage, and immuno-modulation or compromise. External oil application allowed for controlled study of thermoregulatory stress as well. Infrared thermal images indicated significantly greater surface temperatures and heat loss in treated birds following external oil applications; however, measurements collected by coelomically implanted temperature transmitters showed that internal body temperatures were stable over the course of the study period. Birds exposed to oil externally consumed more fish than control birds, indicating metabolic compensation for thermal stress. Conversely, birds orally dosed with oil experienced hypothermia and consumed less fish compared to control birds.
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Affiliation(s)
- Fred Cunningham
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States.
| | - Karen Dean
- Abt Associates, Boulder, CO, United States
| | - Katie Hanson-Dorr
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States
| | - Kendal Harr
- Urika Pathology LLC, Mukilteo, WA, United States
| | - Kate Healy
- US Fish and Wildlife Service, Deepwater Horizon NRDAR Field Office, Fairhope, AL, United States
| | - Katherine Horak
- USDA/ APHIS/Wildlife Services/National Wildlife Research Center, Ft. Collins, CO, United States
| | - Jane Link
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Susan Shriner
- USDA/ APHIS/Wildlife Services/National Wildlife Research Center, Ft. Collins, CO, United States
| | - Steven Bursian
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Brian Dorr
- USDA/ APHIS/ Wildlife Services/National Wildlife Research Center, Starkville, MS, United States
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