Raleigh Ecological Services Field Office
Conserving the Nature of America

Presentations

The following presentations have been developed and delivered by the Raleigh Field Office's Environmental Contaminants Program or our partners. Some of the actual presentations are attached and any are available from Sara (sara_ward@fws.gov) or Tom (tom_augspurger@fws.gov)

2016 Presentations

Augspurger T, Wang N, Ingersoll C, Cope G, Barnhart C. 2016. A decade of progress on freshwater mussel toxicity testing and opportunities for further advancement.  Poster drafted for presentation at the Society of Environmental Toxicology and Chemistry (SETAC) Europe 26th Annual Meeting, May 23, Nantes, France.

Moorman M, Augspurger T, Stanton J. 2016. Utility of using submerged aquatic vegetation as an indicator  to focus monitoring and build partnerships.  Poster drafted for presentation at the 10th National Monitoring Conference, May 2 - 6, Tampa, FL.

Popp A, Cope WG, McGregor M, Koch L, Kwak TJ, Augspurger T, Levine JF. 2016. Assessing the Influence of Propagation and Culture Methods on Juvenile Mussel Chemical Sensitivity: Implications for Conservation. Presented at the Meeting of the Virginia and North Carolina Chapters of the American Fisheries Society & The Southeast Atlantic Slope and Virginia Atlantic Slope Mollusk Groups, March 16, Danville, VA.

Augspurger T. 2016. Water Quality and Recovery of Endangered Species: One of the US Fish and Wildlife Service’s Many Conservation Roles. UNC-Wilmington, March 3, Wilmington, NC.

Augspurger T. 2016. Water Quality Parameters Important for Mollusk Conservation. Presented during the Southeast Mollusk Biology and Water Quality Webinar, February 24.

2015 Presentations

Augspurger T, Basu N. 2015. “One Health”: Opportunities for SETAC leadership in integrating environmental, human, and animal health. Poster TP094 presented at the 36th Annual Meeting of the Society or Environmental Toxicology and Chemistry North America, November 3, Salt Lake City, UT.

Augspurger T, Lehmann W. 2015. Ecological risk assessment and improved conservation outcomes for water quality criteria consultations under the Endangered Species Act. Presented at the 36th Annual Meeting of the Society or Environmental Toxicology and Chemistry North America, November 5, Salt Lake City, UT.

Raimondo S, Lilavois CR, Lee L, Augspurger T, Wang N, Ingersoll CG, Bauer C, Hammer E, Barron MG. 2015. Assessing variability in chemical acute toxicity of unionid mussels: Influence of intra- and inter-laboratory testing, life stage, and species.  Poster TP192 presented at the 36th Annual Meeting of the Society or Environmental Toxicology and Chemistry North America, November 3, Salt Lake City, UT.

Staveley J, Augspurger T, Guiney P. 2015. Sustaining the SETAC Brand: Experiences with SETAC’s Public Outreach Policy. Presented at the 36th Annual Meeting of the Society or Environmental Toxicology and Chemistry, November 2, Salt Lake City, UT.

Augspurger T, Mebane CA, Wang N, Besser JM, Ingersoll CG, Raimondo S. 2015. Derivation and application of taxon-specific criteria: Additional resolution in WQC recommendations. Invited expert meeting on revising U.S. EPA’s guidelines for deriving aquatic life criteria, September 15, Arlington, VA.

Wang N, Ingersoll C, Besser J, Ivey C, Kunz J, Brumbaugh B, Augspurger T, Hammer E, Bauer C, Raimondo S, Mebane C, Soucek D. 2015. Minimum data requirement for developing water quality criteria: Use of toxicity data from under-represented organisms. Invited expert meeting on revising U.S. EPA’s guidelines for deriving aquatic life criteria, September 15, Arlington, VA.

Cope WG, Augspurger T, Bringolf RB, Hammer E, Ingersoll CG, Newton TJ, Wang N. 2015.  Advances in molluscan toxicology over the past 25 years: The importance of people, places, and perspectives. Joint Meeting of the Freshwater Mollusk Conservation Society and the Upper Mississippi River Conservation Committee, March 22, St. Charles, MO.

Wang N, Ingersoll CG, Ivey CD, Kunz JL, Dorman RA, Besser JM, Brumbauh WG, Hammer E, Bauer C, Augspurger T,  Barnhart MC. 2015. Acute and chronic sensitivity of freshwater mollusks to select chemicals. Joint Meeting of the Freshwater Mollusk Conservation Society and the Upper Mississippi River Conservation Committee, March 22, St. Charles MO.

Moorman M, Augspurger T. 2015. Utilizing continuous monitoring and discreet data to understand water-quality at Lake Mattamuskeet National Wildlife Refuge. Fifth Interagency Conference on Research in the Watersheds (ICRW5), March 4, Charleston, SC.

Augspurger T. 2015. Lake Mattamuskeet Overview and Initial Water Quality Retrospective. Presented at Mattamuskeet Collaboration Team Meeting, February 11, Raleigh, NC.

2014 Presentations

Augspurger T, Campbell P. 2014. Lake Mattamuskeet overview and initial water quality retrospective. Presented at USGS-FWS Lake Mattamuskeet Water Quality Meeting, November 20, Raleigh, NC.

Augspurger T. 2014. One Health: Opportunities for SETAC leadership on environmental quality. Presented at Society of Environmental Toxicology and Chemistry Wildlife Toxicology Advisory Group Meeting, November 13, Vancouver, BC. 

Augspurger T. 2014. Overview of risk assessment for metals and contaminants of emerging concern (CECs). Presented at Contaminants Workgroup Meeting, Albemarle-Pamlico National Estuary Partnership, October 21, Raleigh, NC.

Augspurger T. 2014. Historic Water Quality Data for Lake Mattamuskeet and Initial Retrospective Analyses. Lake Mattamuskeet Technical Working Group Meeting. August 26, Swan Quarter, NC.
Augspurger T. 2014. Cooperative assessment of vacuolar myelinopathy in North Carolina: A case study. Wildlife Health Workshop, August 14, Raleigh, NC.

Augspurger T. 2014. Encouraging States to Adopt EPA’s National Recommended 2013 Ammonia Water Quality Criteria into State Water Quality Standards. Virginia Atlantic Slope Mollusk Recovery Group Meeting March 7, Forest, VA (presented by webinar).

Augspurger T. 2014. Encouraging States to Adopt EPA’s National Recommended 2013 Ammonia Water Quality Criteria into State Water Quality Standards. Southeast Atlantic Slope Mollusk Meeting, January 22, Raleigh, NC.

2013 Presentations

Augspurger T. 2013. Site-specific ammonia recommendation for the South Toe River’s (NC) endangered freshwater mussels. Poster RP099, Society of Environmental Toxicology and Chemistry annual meeting, November 21, Nashville, TN.

Raimondo S, Jackson C, Lee L, Barron M, Augspurger T, Bauer C, Shephard B, Wang N, Ingersoll CG. 2013. Comprehensive mollusk acute toxicity database improves the use of interspecies extrapolation models to predict toxicity of untested mussel species. Presentation 92, Society of Environmental Toxicology and Chemistry annual meeting, November 21, Nashville, TN.

Wang N, Ingersoll CG, Ivey CD, Brumbaugh WG, Besser JM, Hammer E, Bauer CR, Augspurger T, Raimondo S, Shephard B, Bartoszek J, Barnhart C, Eckert N. 2013. Acute sensitivity of freshwater mollusks and commonly tested invertebrates to select chemicals with different toxic modes of action. Poster MP030, Society of Environmental Toxicology and Chemistry annual meeting, November 18, Nashville, TN. 

Augspurger T. 2013. Use of Mussel Toxicity Data in Criteria, Standards, and Risk Assessment.  Presented at SETAC professional development course: Introduction to Freshwater Mollusks --Use of Laboratory and Field Toxicity Data to Develop Conservation Strategies for Mollusks.  Society of Environmental Toxicology and Chemistry Annual Meeting, November 17, Nashville, TN

Ward, S and C Hunter. 2013. Ecological Considerations for Forested Peat Wetlands: Meeting Biological Objectives at the Landscape Scale. MFWFCC Symposium – November 19, 2013. Manteo, NC.


Kwak TJ, Cope WG, Newton TJ, Bales JD, Daraio JA, Drew CA, Pandolfo TJ, Archambault JM, Ganser AM, Heise RJ, Nichols RB, Augspurger T, Karns BN. 2013. Breaking traditional barriers to model climate change and land use impacts on freshwater mussels. National Climate Change and Wildlife Science and Management Webinar Series, March 26.

Ward S, Bryant M, and B Van Eerden. 2013. Peatland Conservation in the Albemarle Pamlico Region - Meeting the Challenge of a Changing Climate. Presented to FWS Office of Science Advisor Webinar, April 18.


2012 Presentations

Wang N, Ingersoll CG, Ivey CD, Hammer E, Bauer CR, Augspurger T, Raimondo S, Shephard B, Bartoszek J, Barnhart C, Eckert N. 2012. Acute sensitivity of freshwater mollusks to select chemicals with various toxic modes of action. Poster RP 200 presented at the 33rd Annual meeting of the Society of Environmental Toxicology and Chemistry, November 15, Long Beach, CA.

Kwak TJ, Cope WG, Newton TJ, Bales JD, Daraio JA, Drew CA, Pandolfo TJ, Archambault JM, Ganser AM, Heise RJ, Nichols RB, Augspurger T, Karns BN. 2012. Breaking traditional barriers to model climate change and land use impacts on freshwater mussels. The Freshwater Mollusk Conservation Society Biennial Workshop, April 19-20, Athens, GA.

Drew CA, Kwak T, Cope G, Augspurger T, Pandolfo T. 2012. Hierarchical landscape models for endemic unionid mussels: Building strategic habitat conservation tools for mussel recovery in the South Atlantic Landscape Conservation Cooperative. U.S. International Association for Landscape Ecology, April 8-12, Newport, RI.

Ingersoll C, Wang N, Besser J, Augspurger T, Barnhart, C. 2012. Laboratory methods for conducting water-only or sediment toxicity tests with early life stages of freshwater mussels. Presented at the USEPA, DOI, and Participating Parties UCR Meeting, November 7, Spokane WA.

Wicker M, Ward S, Augspurger T. 2012. Carbon, nitrogen and mercury sequestration benefits of pocosin peat bog restoration: Turning an estuarine liability into an asset. STP#37, Presented at the 6th National Conference on Coastal and Estuarine Habitat Restoration, October 22, Tampa, FL.

Ward S. 2012. Pocosin Lakes Cooperative Peatland Restoration Project – Benefits, Progress and Landscape Scale Opportunities. USFWS Regional Directorate Briefing and All Employee webinar, July 12.

2011 Presentations

Augspurger T, Heinz G. Is a standard method desirable for avian egg injections in toxicological assessments? Poster WP181, Society of Environmental Toxicology and Chemistry annual meeting, November 16, Boston, MA.

Heinz G, Augspurger T. Some reflections on egg injections. Poster WP182, Society of Environmental Toxicology and Chemistry annual meeting, November 16, Boston, MA.

Kunz J, Wang N, Ingersoll C, Augspurger T, Hollenkamp C. An evaluation of the sensitivity of freshwater mussels in 7-day effluent toxicity tests compared to commonly tested species. Poster RP178, Society of Environmental Toxicology and Chemistry annual meeting, November 17, Boston, MA.

Hardesty DK, Besser JM, Kemble NE, Ingersoll CG, Wang N, Augspurger T, Mair R. Pollutant sensitivity of the green floater (Lasmigona subviridis), a freshwater mussel of conservation concern in mid-Atlantic river basins, USA. Poster RP249, Society of Environmental Toxicology and Chemistry annual meeting, November 17, Boston, MA.

Augspurger T, Wang N, Mebane C, Ingersoll C. 2011. Use of freshwater mussels in establishing USEPA water quality criteria (post 2005). Presented at SETAC Metals Advisory Group Reception, Society of Environmental Toxicology and Chemistry annual meeting, November 14, Boston, MA.

Ward, S. 2011. Pocosin Lakes National Wildlife Refuge Cooperative Restoration Project: Bringing back peatlands while reducing catastrophic wildfire threats. TNC Fire and Pocosins Conference, October 11, Maple Hill, NC.

Jahn K, Elliott J, Augspurger T. 2011. Field approaches to evaluate PCB-related toxicity to birds. Natural Resource Damage Assessment of the Anniston PCB Site Expert’s Workshop to Support the Design of Injury Studies for Fish, Amphibians, and Birds, September 21, Seattle, WA.

Augspurger T. 2011. Use of mussel toxicity data for water quality management, USEPA Region 5 Mussel Toxicology Webinar, July 12.

Ward, S. 2011. Carbon Sequestration Benefits of Peatland Restoration - Pocosin Lakes National Wildlife Refuge Cooperative Restoration Project. Presented at Southeast FWS Regional Climate Change Team Meeting, June 23, Research Triangle Park, NC.

Augspurger T, Ward SE. 2011. Dam removal: Sediment quality evaluation and impact assessment. Dam Removal Demystified: Workshop Hosted by American Rivers, June 14, Chapel Hill NC.

Ingersoll C, MacDonald D, Barnhart C, Augspurger T, Dwyer J, Roberts A. 2011. Assessing sensitivity of mussels to contaminants in water or sediment. Upper Columbia River RI-FS Meeting, June 3.

2010 Presentations

Augspurger T. 2010. Wildlife response planning for coastal oil spills. NC Area Committee Meeting, December 9, Wilmington, NC.

Ward S, Augspurger T. 2010. USFWS Environmental Contaminants Program role in pollution prevention for >250,000 acres adjacent to national wildlife refuges in North Carolina. Presented at the Environmental Contaminants National Training, December 3, Portland, ME.

Hinck JE, Ingersoll C, Wang N, Augspurger T, Barnhart MC, McMurray S, Roberts A, Schrader L. 2010. Conserving freshwater mussel diversity: A case study in the Meramec River basin, Missouri, USA. Poster TP054, Society of Environmental Toxicology and Chemistry annual meeting, November 9, Portland OR.

Ward SE, Augspurger TP. 2010. Avian issues with the Deepwater Horizon oil spill. Presented at the Atlantic Flyway Council Meeting, July 19, Wilmington, NC.

Augspurger T. 2010. Review of draft 2009 update of water quality criteria for ammonia. Presented at the Southeastern Atlantic Slope Mussel Meeting, January 28, Raleigh, NC.

2009 Presentations

Ward, S., T. Augspurger, E. Hinesley, D. Kitts, and M. Wicker. 2009. Carbon sequestration benefits of peatland restoration - Pocosin Lakes National Wildlife Refuge Cooperative Restoration Project. Presented at the Symposium on The Ecology and Management of Atlantic White Cedar (Chamaecyparis thyoides) Ecosystems, June 9-11, 2009, Greenville, NC. Proceedings available: http://www.ces.ncsu.edu/nreos/forest/feop/AWC2009/proceedings/.

2008 Presentations

Benjamin, P. and H. Phillips. 2008. Off-Setting Pollutant Loads: Wetland Restoration Partnership Benefits Water Quality and Wildlife in Eastern North Carolina. Presented at the 11th National Environmental Contaminants Workshop, May 13, Ft. Lauderdale, FL.

Ward, S. 2008. Wetland Restoration: Carbon and Nitrogen Off-sets to Benefit Water Quality and Wildlife. Presented at the 11th National Environmental Contaminants Workshop, May 14, Ft. Lauderdale, FL.

Augspurger, T., C. Ingersoll and R. Neves. 2008. Water quality evaluation tools for designing and implementing freshwater mussel recovery actions. Presented at joint meeting of the Society for Conservation Biology and Freshwater Mollusk Conservation Society, July 15, Chattanooga, TN.

Augspurger, T. 2008. Cape Fear shiner pollutant sensitivity: Lessons learned from propagation and testing. Presented at Chatham Conservation Partnership meeting, June 26, Pittsboro, NC.

Augspurger, T. 2008. Pollutant sensitivity of freshwater mussels and water quality concerns in Goose Creek. Presented at North Carolina Division of Water Quality public hearing, May 22, Charlotte, NC.

Augspurger T. 2008. Estimating toxicity reference values in threatened and endangered aquatic species risk assessment. Presented at BASF, April 24, Research Triangle Park, NC.

Augspurger T. 2008. Advances in understanding the pollutant sensitivity of freshwater mussels. Presented at the Southeastern Atlantic Slope Mussel Meeting, January 7-9, Raleigh, NC.

2007 Presentations

Augspurger T.P., C.G. Ingersoll, N.E. Kemble, J.L. Kunz and S.E. Ward SE. 2007. Sediment quality within the impounded reaches of Cape Fear River locks and dams. Poster No. TP53. 28th annual meeting of the Society of Environmental Toxicology and Chemistry, November 11-15, Milwaukee, WI.

Wang, N., C.G. Ingersoll, F.J. Dwyer, A.D. Roberts, T. Augspurger, C.M. Kane, R.J. Neves and M.C. Barnhart. 2007. Assessing contaminant sensitivity of early life stages of freshwater mussels. Presentation PL39 at the 5th Biennial Symposium of the Freshwater Mollusk Conservation Society, March 11-15, Little Rock, AR.

W.G. Cope, A.D. Christian, R.B. Bringolf, N. Wang, T.J. Newton, J.L. Farris, T. Augspurger, F.J. Dwyer, M.C. Barnhart, R.J. Neves, E. Hammer and C.G. Ingersoll. 2007. Freshwater mussel ecosystem ecology: The integrated functional roles of water quality, pollution, and physical habitat in supporting adult and early life stages of freshwater mussels and their role in nutrient recycling. Presentation PF 06 at the 5th Biennial Symposium of the Freshwater Mollusk Conservation Society, March 11-15, Little Rock, AR.

2006 Presentations

Augspurger, T., J. Dwyer and C.G. Ingersoll. 2006. Implications of including freshwater mussel toxicity data in water quality criteria derivation datasets. Presentation No. 724. 27th annual meeting of the Society of Environmental Toxicology and Chemistry, November 5-9, Montreal.

Wang, N., J.M. Besser, C.G. Ingersoll, J. Dwyer, T. Augspurger. 2006. Assessing contaminant sensitivity of threatened and endangered freshwater fish and mussels. Poster No. 1056. 27th annual meeting of the Society of Environmental Toxicology and Chemistry, November 5-9, Montreal.

2005 Presentations

Augspurger, T. R. Di Giulio and D. Tillitt. 2005. Embryotoxicity of 2,3,7,8-TCDD to the wood duck (Aix sponsa). Poster No. RP092, 26th annual meeting of the Society of Environmental Toxicology and Chemistry, November, Baltimore, MD.

Ingersoll, C., T. Augspurger, C., Barnhart, G. Cope, F. Dwyer, C. Bishop, R. Neves, T. Newton, A. Roberts, and N. Wang. 2005. Development of an ASTM standard guide for conducting laboratory toxicity tests with freshwater mussels. Poster No. 186, 26th annual meeting of the Society of Environmental Toxicology and Chemistry, November, Baltimore, MD.

March, F., F. Dwyer, C. Ingersoll, N. Wang and T. Augspurger. 2005. Evaluation of copper water quality standards and criteria for freshwater mussels. Poster No. RP111, 26th annual meeting of the Society of Environmental Toxicology and Chemistry, November, Baltimore, MD.

Wang, N., C. Ingersoll, I. Greer, D. Whites, F. Dwyer, A. Roberts, T. Augspurger, C. Kane, R. Neves and C. Barnhart. 2005. Acute and chronic toxicity of copper, ammonia, and chlorine to early life stages of freshwater mussels. Poster No. RP132, 26th annual meeting of the Society of Environmental Toxicology and Chemistry, November, Baltimore, MD.

Ward, S. and T. Augspurger 2005. Risk assessment of water quality in streams supporting federally-endangered freshwater mussels in North Carolina. Presentation No. 337, 26th annual meeting of the Society of Environmental Toxicology and Chemistry, November, Baltimore, MD.

2004 Presentations

Augspurger, T., C. Orazio, K. Echols, P. Peterman and D. Tillitt . 2004. Are lower Roanoke River wood ducks at risk from PCDD / PCDF exposure? Poster No. PH286,25th annual meeting of the Society of Environmental Toxicology and Chemistry, November 14-18, Portland, OR.

Wang, N., C. Ingersoll, E. Greer, D. Whites, J. Dwyer, A. Roberts, T. Augspurger, C. Kane, R. Neves and C. Barnhart. 2004. Repeatability of toxicity tests with glochidia of freshwater mussels and influence of test organism ages. Poster No. PT206, 25th annual meeting of the Society of Environmental Toxicology and Chemistry, November 14-18, Portland, OR.

2003 Presentations

Ward, S.E. and T.P. Augspurger. 2003. Comparison of low level chlorine measurement instrumentation for stream monitoring. Poster No. PT070 presented at the 24th Annual Meeting of the Society of Environmental Toxicology and Chemistry, 9-13 November, Austin, TX.

  • Abstract: Chlorinated wastewaters have the potential to impact habitat for threatened and endangered mussels. Limited information indicates that mussel exposures to chlorine may be significant and, in some cases, exceed concentrations shown to be harmful. Due to the extreme toxicity of chlorine to aquatic life, federal water quality criteria and many state standards are set at concentrations less than 20 parts per billion (ppb or µg/l). Many field instruments for chlorine analyses cannot attain detection limits as low as these standards. Chlorine is also highly reactive and volatile, and the U.S. Environmental Protection Agency’s recommended maximum 15 minute holding time for total residual chlorine (TRC) analysis often precludes a laboratory-based approach. This makes accurate measurement of ambient chlorine concentrations a challenge. For instream monitoring of selected mussel habitat in North Carolina, several portable low level (0 - 500 ppb) chlorine detection systems were laboratory- and field-tested. Results of the benchtop comparison of chlorine measurement protocols and instrumentation prompted selection of a N,N-Diethyl-p-Phenylenediamine (DPD) colorimetric method with a demonstrated method detection limit of 6 ppb. Use of this method in the field has resulted in accurate (coefficient of determination from 5-point calibration curves averaging 0.996) and precise (relative percent deviations for duplicate samples averaging 14%) low level measurements of TRC over a range of 6 to 300 ppb. The approach is likely to be useful for various applications including routine discharge monitoring and assessment of chlorine toxicity threats to mussels and other fauna.
  • pdf version of poster (240 KB)

Augspurger, T.P. and S.E. Ward. 2003. Site-specific water quality standards for an impaired stream with endangered freshwater mussels. Poster No. PM140A presented at the 24th Annual Meeting of the Society of Environmental Toxicology and Chemistry, 9-13 November, Austin, TX.

  • Abstract: Goose Creek is the only waterbody in North Carolina which is both listed as impaired on the Clean Water Act 303(d) list and yet contains an extant population of the federally-listed endangered Carolina heelsplitter (Lasmigona decorata), a freshwater mussel. As such, a water quality management plan is being developed for the stream under a recent modification to the State antidegradation policy which requires site-specific plans for certain waters supporting federally-listed threatened or endangered species. The basis for that plan is identification of the pollutants causing the impairment. Excessive sediment, ammonia, copper, phosphorus, nitrate / nitrite, and chlorine have been documented, with significant increasing trends in most of these parameters over the last decade. Because North Carolina has not yet adopted aquatic life water quality standards for any of these pollutants, target water quality concentrations are derived with two approaches: 1) an aquatic risk assessment using toxicity data for surrogate freshwater mussels; and, 2) a reference watershed approach. In addition to the numeric targets which will guide the restoration effort, narrative standards are proposed to address certain sources and to facilitate implementation of the plan.
  • pdf version of poster (380 KB)

2002 Presentations

Winger PV, PJ Lasier and T Augspurger. 2002. Potential impacts of landfill leachate to Alligator River National Wildlife Refuge. Poster No. P663 presented at the 23rd Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 19, 2002. Salt Lake City, UT

  • Abstract not available in electronic format

2000 Presentations

Augspurger T, MC Black, AE Keller and WG Cope. 2000. Review of ammonia toxicity to freshwater mussels. Poster No. PHA001 presented at the 21st Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 16, 2000. Nashville, TN.

  • Abstract not available in electronic format

1999 Presentations

Augspurger T, KJG Miller and JR Fischer. 1999. Vacuolar myelinopathy in wild birds from an impoundment in the North Carolina sandhills. Poster No. 37 presented at the 48th Annual Wildlife Disease Association Conference, August 10, 1999. Athens, GA.

  • Abstract not available in electronic format

1998 Presentations

Augspurger, T., W. Golder and D.E. Tillitt. 1998. Productivity and contaminant assessment of colonial waterbirds in coastal North Carolina, USA. Draft, pre-publication manuscript.

  • Abstract. Geometric mean concentrations of arsenic (0.06 ug/g fresh wet weight) and selenium (0.70 ug/g) in Royal Tern (Sterna maxima) eggs collected from a colony in North Carolina's Cape Fear River estuary were significantly higher than corresponding levels in eggs from a reference colony, approximately 150 km northeast. Concentrations of mercury (0.70 ug/g) and bioassay-derived 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents (TCDD-EQs) (3.4 pg/g) in Cape Fear River tern eggs did not differ from reference specimens. Royal Tern eggshell thicknesses from the Cape Fear River colony (0.357 mm) and reference site were normal as was productivity in these colonies. Examination of 12,807 Royal Tern chicks during banding in 1994 and 1995 revealed no bill or foot deformities. Arsenic (0.03 ug/g), selenium (0.38 ug/g), and TCDD-EQs (4.5 pg/g) in Brown Pelican (Pelecanus occidentalis) eggs from the Cape Fear River estuary were significantly higher than reference specimens. Geometric mean mercury (0.34 ug/g) and mean eggshell thickness (0.550 mm) of Cape Fear River Brown Pelican eggs did not differ from the reference colony. Contaminant concentrations were below apparent avian affect thresholds; they provide a foundation for additional spatial and temporal monitoring of pollutant status and trends in the region.

1996 Presentations

Augspurger, T., J. Holloman and M. Canada. 1996. Productivity and contaminant assessment of ospreys from western Albemarle Sound, North Carolina. Poster No. P0947 presented at the Seventeenth Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 21, 1996, Washington, DC.

  • Abstract. The lower Roanoke River and western Albemarle Sound are contaminated with PCDDs/PCDFs from pulp mills that historically bleached with molecular chlorine. Resident fish in these northeastern NC waters are the subject of human health consumption advisories. We examined productivity, PCDDs / PCDFs, and mercury in osprey (Pandion haliaetus) nesting at the mouth of the Roanoke River and western Albemarle Sound in the first effort to assess the health of piscivorous migratory birds in the vicinity. Productivity was examined by following the fate of occupied nests in 1993 (n=15), 1994 (n=15), and 1995 (n=20). Annual average clutch size (2.27 to 2.93; mode = 3), young fledged per active nest (1.21 to 1.53) and young fledged per successful nest (1.78 to 1.92) appeared normal and did not appreciably differ from productivity of ospreys breeding at Lake Mattamuskeet, a reference location 60 km distant. In 1995, 2,3,7,8-substituted PCDDs/PCDFs were measured by HRGC/MS. Total 2,3,7,8-TCDD TEQs, based on international TEFs, were 16 to 68 pg/g fresh wet weight (geometric mean 33 pg/g; n=6) at western Albemarle Sound and were significantly higher (p‹0.05) than TEQs for eggs from Lake Mattamuskeet (geometric mean < 5.0 pg/g; n=3). Mercury in western Albemarle Sound osprey eggs ranged from 0.01 to 0.03 ug/g fresh wet weight (geometric mean 0.02 ug/g; n=6) and was significantly (p‹0.01) lower than mercury in eggs from Lake Mattamuskeet (geometric mean 0.06 ug/g; n=6). There was no significant relationship between western Albemarle Sound osprey reproductive performance and TEQs or mercury.

1994 Presentations

Augspurger, T.P., K.T. Looney and W.J. Fleming. 1994. Field monitoring of freshwater mussel cholinesterase activities to assess pesticide exposure. Paper presented at the Fifteenth Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 2, 1994, Denver, CO.

  • Abstract. Cholinesterase (ChE) activity was monitored in native freshwater mussels to field test the utility of protocols for assessment of unionid exposure to ChE-inhibiting pesticides. In 1993, eastern elliptio (Elliptio complanata) were collected biweekly from 05 April to 30 August (n=15) at four monitoring stations in the upper Tar River basin, North Carolina (USA). Anterior adductor muscles of these were assayed for ChE activity with modified spectrophotometric techniques. Analysis of variance indicated significant (p‹0.05) ChE-inhibition within stations over time and between stations for particular sampling events. Average ChE activities at downstream stations were depressed by as much as 78% (relative to upstream reference specimens) and 83% (relative to within-site specimens collected earlier). Within-site variation of ChE activities was considerable; average C.V. in 15 sampling events ranged from 39 to 49% at the four monitoring stations. Water temperature inversely correlated with ChE activity at half the monitoring stations, but temperature did not explain the significant ChE depression between stations. Concentrations of some major ions, including HCO3-, significantly correlated with normal ChE activities; whether these directly influenced ChE activity requires further study.

1993 Presentations

Beeman, D.K., T.P. Augspurger, and W. J. Fleming. 1993. Productivity and PCDDs / PCDFs in eggs from two great blue heron rookeries near a pulp and paper mill on the Roanoke River, North Carolina. Poster Number P118 presented at the Fourteenth Annual Meeting of the Society of Environmental Toxicology and Chemistry, November 14-18, Houston, TX.

  • Abstract not available in electronic format
Last Updated: November 1, 2012