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Presentations

Standard File Paulik diagrams from a larval ecology class which included references are displayed via a Flickr gallery.

For further information on the presentations below, contact the authors.  Presenter shown in bold.

2024

2023

  • Mann, R., M. Southworth, M. Tarnowski, J. Wesson, A. Marquardt, and J. Harding. (2023, March). Revisiting the Newell number – estimating pre-colonial oyster abundance and ecological services in the Chesapeake Bay. National Shellfisheries Association. Baltimore, MD.
  • Southworth, M., J. Wesson, A. Button, R. Mann, A. Marquardt, and A. Scheld. (2023, March). Rotational management of oyster harvest in the Rapppahannock River, Virginia: 15 years onward. National Shellfisheries Association. Baltimore, MD.

2022

Alex Marquardt's research was presented at:
- Wageningen University and Research. Yerseke, Netherlands
- American Fisheries Society, Spokane, WA, August 2022
- National Shellfisheries Association, San Diego, CA, March 2022
- Aquaculture. San Diego, CA.  Alex Marquardt also won an award for this presentation.

2021

NATIONAL SHELLFISHERIES ASSOCIATION. Online via Zoom. March 2021

2019

VIRGINIA AQUACULTURE CONFERENCE, Newport News, VA, November 2019

NATIONAL SHELLFISHERIES ASSOCIATION. New Orleans, LA. April 2019

  •  Russell, K., M. C. Long, T. Redmond, S. Pace, R. Mann and E. Powell. Can we discern major meteorological and environmental events in the growth record of the long lived clam Arctica islandica? 
  • Mann, R., M. Southworth, J. E. Wesson. 2019. On the stock recruit relationship in oysters populations of the Virginia Chesapeake Bay.
  • R. Mann, R., M. Southworth, J. E. Wesson. 2019. Growth, mortality and shell turnover rates in oyster populations of the Virginia Chesapeake Bay. 
  • Southworth, M., J. E. Wesson, M. Berman, T. Rudnicky and R. Mann. 2019. Building tools to minimize user conflict while promoting both aquaculture and traditional fisheries. 
  • Redmond, T., M. C. Long, S. Thomas, S. Roman, D. Rudders, R. Mann. 2019. Age and growth rate measurement in scallops from the mid-Atlantic: a comparison of shell signatures, hinge resilia and isotope-based methods. 

2017

BENTHIC ECOLOGY MEETINGS. Myrtle Beach SC, April 2017

  • Timbs, J., R. Mann, E.N. Powell. 2017. Spatial Distribution of Atlantic surfclams (Spisula solidissima) in the Middle Atlantic Bight and Georges Bank. 
  • Pace, S.M., E.N. Powell, R. Mann, J.M. Klinck. 2017. Effects of increasing bottom water temperature on growth rates of ocean quahogs throughout the Mid-Atlantic. 

NATIONAL SHELLFISHERIES ASSOCIATION. Knoxville TN. March 2017

  • Long M.C., R. Mann, E.N. Powell. 2017. Sexual dimorphism in Arctica islandica. 
  • Mann R., M.C. Long, S. Pace, E.N. Powell. 2017. Sub-annual signatures in the valves of juveniles Arctica islandica. 
  • Southworth, M., R. Mann, M.C. Long. 2017. Tolerance of Crassostrea virginica to combinations of low salinity and high temperature. 
  • Powell, E.N., S. Pace, R. Mann, J.M. Klinck. 2017. Invasion Dynamics of Arctica islandica, Ocean Quahog, in the Western Atlantic Ocean. 
  • Pace, S., E.N. Powell, R. Mann, J.M. Klinck. 2017. Evidence of multidecadal recruitment in the ocean quahog, Arctica islandica, in the Western Atlantic Ocean.
  • Timbs, J, R. Mann, E.N. Powell. 2017. Spatial Distribution of Atlantic surfclams (Spisula solidissima) in the Middle Atlantic Bight and Georges Bank. 

2016

ICES Annual Science Symposium, Riga, Latvia. September 19-23, 2016

  • Pace, S., E.N. Powell and R. Mann. 2016. Age structure of the Ocean Quahog Arctica islandica from the northwest Atlantic Ocean. 

NATIONAL SHELLFISHERIES ASSOCIATION, Las Vegas NV, February 2014

  • Southworth M. and R. Mann.  2016. Which kids from which parents? The relationship of spawning periodicity to YOY survival in VA oyster populations. 

2015

AMERICAN FISHERIES SOCIETY, Portland OR, August 16-20, 2015

  • Powell, E.N., Klinck, J.M., Hofmann, E.E., Moreno, P., Kuykendall, K.M., Munroe, D.M., Mann, R. 2015. Captains' Response to a Declining Stock as Anticipated in the Surfclam (Spisula solidissima) Fishery. 

NATIONAL SHELLFISHERIES ASSOCIATION, Monterey CA, March 2015

  • Southworth M, J. Thomas and R. Mann 2015. Towards the paperless oyster survey; consideration of digital data entry in the field. 

2014

AMERICAN FISHERIES SOCIETY, Quebec City. August 17-21, 2014

  • Moreno, P., E. N. Powell, J. M. Klinck, D.M. Munroe and R. Mann. 2014. Spatially-explicit Fisheries Economics Simulator: a predictive tool of climate-induced effects on harvesting performance. 

NATIONAL SHELLFISHERIES ASSOCIATION, Jacksonville FL, March 2014

  • Soniat, T. M.,  N. Cooper, E.N. Powell, J.M. Klinck, and R. Mann. 2014. Application of a shell budget model to evaluate success or failure of oyster reef restoration.
  • Southworth, M. and R. Mann. 2014. Moving baselines in oyster reproductive periodicity in the Virginia Chesapeake Bay.
  • Mann R., D. M. Munroe, K Kuykendall and E. N. Powell. 2014. A simple method for correction of breakages losses in clam surveys.
  • Bergeron, J., D. Rudders and R. Mann. 2014. Latitudinal and bathymetric variation in ontogenetic morphology in the sea scallop Placopecten magellanicus. 
  • Kuykendall, K., P. Moreno, E. N. Powell, T. Soniat, S. Theodosiou, R. Mann, and D. M. Munroe. 2014. The exposed surface area to volume ratio: Is shell more cost-efficient than limestone in promoting oyster recruitment?

2013

3rd International Sclerochronology Conference, May 18-20, Caernarfon, Wales

  • Mann, R., Munroe D. M., Powell E.N., Hofmann E.E., Klinck J. M. 2013. Sclerochronology and bioenergetics models: a combination to elucidate changes in growth environments at small temporal and spatial scales.

AMERICAN FISHERIES SOCIETY, 2013

  • Powell, E.N., Klinck J. M., Moreno P., Munroe D. M., Hofmann E. E., Mann, R. 2013. Evaluation of a Spatially-explicit Fisheries Economics Simulator (SEFES) for the Mid-Atlantic surfclam fishery
  • Moreno, P., Powell E.N., Klinck J. M., Munroe D. M., Hofmann Eileen. E., Mann, R. 2013. Climate-induced changes in the performance of the Mid-Atlantic surfclam fishery: linking biological and human processes

MANAGING OUR NATIONS FISHERIES: ADVANCING SUSTAINABILITY. May 7-9. Washington DC. 2013.

  • Munroe, D., B. McCay, E.N. Powell, J. M. Klinck, E. E. Hofmann, R. Mann, D. Haidvogel, S. Brandt, C. Creed, P. Zhang,  and C. V. Mejía. 2013. Assessing the Impacts of Climate Change in a Coupled Socio-Ecological System: The Case of Atlantic Surfclams

AERS MEETING, Williamsburg VA. April 12-13, 2013.

  • Mann, R., E. N Powell, and G. Waldebusser. 2013. Biogenic carbonate and community structure in estuaries.

28th Lowell Wakefield Fisheries Symposium
. 
Anchorage, Alaska. March 26–29, 2013.

  • Mann R., D. M. Munroe, E. N. Powell, E. E. Hofmann and J. M. Klinck. 2013. Long-lived bivalve molluscs as barometers of climate change in shallow Arctic marine systems

BENTHIC ECOLOGY MEETINGS, Savannah, GA. March 20-24, 2013

  • Munroe, D. M., Narváez D, Curchitser E, Klinck J. M., Hofmann E. E., Mann R., Powell E. N. 2013. Long-term Dynamics in Atlantic surfclams: The Role of Bottom Water Temperature.
  • Narváez, D. Munroe D. M., Mann R., Powell E. N., Klinck J. M., Hofmann E. E. 2013. Modeling Dynamics in Continental Shelf Benthos: An Individual-Based Population Model for Atlantic Surfclams
  • Moreno, P., Powell E. N., Klinck J. M., Hofmann E. E., Munroe D. M., Mann R. 2013. Climate-induced changes in the performance of the Mid-Atlantic surfclam fishery: linking biological and human processes

NATIONAL SHELLFISHERIES ASSOCIATION, Nashville, March 2013

  • Southworth,.M, R. Mann, P. McGrath and M. Congrove. 2013. Fecundity of oysters Crassostrea virginica estimated from spawning of field collected individuals.

Integrated Marine Biogeochemistry and Ecosystem Research (IMBER). Goa, India January 2013. 

  • Hofmann, E. E., J. M. Klinck, B. McCay, C. Creed, S. Brandt, C. M. V. Mejia, E. N. Powell, D. Munroe, D. B. Haidvogel and R. Mann. 2013. A Coupled Model of Economics, Human Behavior, and Bivalve Biology: Application to the Surfclam Fishery.

2012

NATIONAL SHELLFISHERIES ASSOCIATION, Seattle, March 2012

  • Southworth, M., J. A. Wesson and R. Mann. 2012. Rotational harvest in the Rappahannock River: a review of progress to date.
  • Mann, R., B. Walles, K. Troost and T. Ysebaert. 2012. So what should a natural mortality curve look like for oysters?

BENTHIC ECOLOGY MEETING, Norfolk, March 2012

  • Walles, B., R. Mann, T. Ysebaert and K. Troost K. 2012.  Reef Dynamics of Crassostrea gigas in the Oosterschelde estuary (The Netherlands). 

2011

International Workshop on Shellfish Stock Assessments: State of the Art and New Techniques, November 3 – 4, 2011 - Yerseke, the Netherlands

  • Mann, R. 2011. 15 years of oyster assessment approaches in the Virginia portion of the Chesapeake Bay.
  • Mann, R. 2011. On the biology of reef forming species and what we should measure in addition to the typical density, length, and weight data.

World Conference on Biological Invasions and Ecosystem Functioning. Barcelona Spain. August 22-25, 2011 

  • Ribeiro, F., R. Schlosser, A. Deary and R. Mann. 2011. Multivariate approaches to predict invasion success: a novel conceptual framework.

NATIONAL SHELLFISHERIES ASSOCIATION

  • Southworth, M., R. Mann and J. M. Harding. 2011. Biodeposition rates in shallow water, intensive oyster farms.
  • Mann, R., J. M. Harding, M. Southworth and J. Wesson. 2011.  Managing shell budgets through rotational harvest in seed production areas.
  • Mann, R. 2011. The Chesapeake Bay Executive Order, oyster restoration goals and dollars – did anyone think about the costs?
  • Harding, J.M., E, N. Powell, R. Mann and M. Southworth. 2011. Sex ratio and age in Crassostrea virginica.

2009

NATIONAL SHELLFISHERIES ASSOCIATION

  • Southworth, M., R. Mann, E. Reilly and J. M. Harding. 2009. Intensive oyster culture in very shallow estuaries: biodeposition versus flushing rates as long-term management considerations.
  • Mann, R., J. M. Harding and M. Southworth. 2009. Oyster restoration in the mid-Atlantic – beating a dead horse?

2008

"Managing Alien Species for Sustainable Development of Aquaculture and Fisheries" (MALIAF). Florence, Italy. November 4-7, 2008.

  • Mann, R. 2008. Choosing a non-native species for aquaculture and fishery enhancement: How niche matching limits choice and ability to develop sound risk assessments.

NATIONAL SHELLFISHERIES ASSOCIATION

  • Southworth, M., R. Mann, J. M. Harding and J. Wesson. 2008. Oyster recruitment to constructed sanctuary reefs in the Chesapeake Bay – one reason why constructed reefs have limited utility.
  • Mann, R and M. Luckenbach. 2008. So how fast do oyster sperm swim?
  • Mann, R, M. Southworth,  J. M. Harding and J. Wesson. 2008. Estimating mortality rates in oyster populations.

2007

NATIONAL SHELLFISHERIES ASSOCIATION                   

  • Southworth, M, R. Mann, and J. M. Harding (2007). Propagule contribution by selected oyster strains used in field broodstock enhancement

Delaware Bay Symposium. January 2007.

  • Mann, R. (2007). Native Oyster Restoration in the Chesapeake Bay: Lessons for the Delaware Estuary

Bioinvasions 2007 MIT. May 2007.

  • Mann, R and J. M. Harding (2007) Modeling invasions by invertebrate species with pelagic larvae in estuarine and coastal systems: an argument for short generational dispersal distance.

ESTUARINE RESEARCH FOUNDATION 2007

  • Harding, J.M., A. Picariello, R. Mann and E.N. Powell. (2007). Growth rates of the Atlantic Surf Clam, Spisula solidissima, in relation to bottom water temperatures in the Mid-Atlantic Bight.
  • Mann, R, M. Southworth, J.M. Harding and J. Wesson. (.2007). Shell budgets for the James River, Virginia oyster resource.

International Conference on Shellfish Restoration, Wissingen, Netherlands, 11/2007

  • Mann, R, M. Southworth, J.M. Harding and J. Wesson. (2007). Shell budgets for the James River, Virginia oyster resource.

Chesapeake Bay Oyster Management Program, Waldorf, MD December, 2007

  • Mann, R, M. Southworth, J.M. Harding and J. Wesson. (.2007). Quantitative aspects of oyster biology relevant to management of the Chesapeake Bay resource. 

2006

NATIONAL SHELLFISHERIES ASSOCIATION, Monterey CA 2006

  • Harding, J. M. and R. Mann. 2006. Age and growth of Crassostrea ariakensis and Crassostrea gigas from Laizhou Bay, China.  

Larval Biology Conference, Coos Bay, OR. August 2006.

  • Mann, R., J. M. Harding, M. Southworth and J. Shen. 2006. How far do planktotrophic larvae disperse in shallow estuarine systems?

2005

International Conference on Shellfish Restoration, Brest, France. 2005.

  • Mann R., M. Southworth, and J. M. Harding. Stock-recruit relationships in shallow water estuaries: examples and implication for shellfish restoration strategies.
  • Mann R., J. Shen, M. Southworth, A..J. Erskine, S. Snyder, and K. Hudson. Circulation in restoration sites: implications for retention or dispersal of shellfish larvae in restoration programs.
  • Mann R., S. K. Allen Jr., E. M. Burreson, M. Luckenbach, K. Reece, J. M. Harding, M. Southworth, R. Carnegie, and J. Carlsson. The Great Wicomico River oyster restoration program: a multi-disciplinary approach to restoring a complete estuarine shellfish population.

Estuarine Research Foundation 2005, Norfolk, VA

  • Mann, R, J. M. Harding and M. Southworth. Tracking progression of a marine invasion: seven years of observations of the marine gastropod Rapana venosa in the Chesapeake Bay, Virginia, USA.

NATIONAL SHELLFISHERIES ASSOCIATION 2005, Philadelphia, PA

  • Mann, R., J. M. Harding and E. N. Powell. Recruitment patterns of the Ocean Quahog, Arctica islandica, in the Mid-Atlantic Bight as illustrated by sized and age structure.
  • Erskine, A. J., S. Snyder, M. Southworth, K. Hudson, J. Shen, and R. Mann. So how far do oyster larvae disperse? A dye study simulation.
  • Mann R. So how far do oyster larvae disperse? Theoretical and time frame considerations  

2004

International Conference on Shellfish Restoration 2004,  Charleston SC

  • Mann, R. (Invited plenary talk) Oyster restoration through environmental rehabilitation: ten years and over 100 reefs later what have we learned?

NATIONAL SHELLFISHERIES ASSOCIATION 2004, Honolulu, Hawaii.

  • Mann, R, M. Southworth, J M. Harding and J. E. Wesson. A comparison of dredge and patent tongs for estimation of oyster populations.  J. Shellfish Res.
  • Southworth M.  and R. Mann. A comparison of recruitment on mid-water oyster spat collectors and subsequent bottom recruitment in three sub estuaries of the Chesapeake Bay, Virginia
  • Elizabeth S. Darrow, E. S., M. W. Luckenbach, and R. Mann.  Physiological Ecology of the Cultured Hard Clam, Mercenaria mercenaria

2003

Oyster Disease Symposium. February 17-18, 2003.  Annapolis MD (NOAA & MD Sea Grant)

  • Mann, R. Current Status of Oyster Populations and Restoration Prospects.

Chesapeake Bay Stock Assessment Committee, Annual Stock Assessment Workshop. Patuxent Wildlife Center, February 19, 2003

  • Mann, R. Oyster Population Estimation in Support of the Ten-Year Goal for Oyster Restoration in the Chesapeake Bay
  • Mann, R. Fishery Independent Stock Assessment of Hard Clam Populations in the Chesapeake Bay and Limitations of Fishery Dependent Data.

Bioinvasions 2003, San Diego, March 2003

  • Mann, R. and J. M. Harding.  Biological invasions as tools to understand basic paradigms in larval ecology.
    • Southworth, M. and R. Mann. Decadal scale changes in seasonal patterns of oyster recruitment in the Virginia sub-estuaries of the Chesapeake Bay.

National Shellfisheries Association, New Orleans, April 2003

  • Mann, R. and P. Kingsley-Smith. Finding the wheat in the chaff: the paradox of turbidity, salinity and larval feeding conditions.

Chesapeake Bay Scientific and Technical Advisory Committee (STAC) oyster workshop, December 2003, Annapolis, MD.

  • Mann, R. Square pegs in rectangular holes: What have we learned from previous oyster introductions, and what questions should we be asking about future introductions?

2002

Chesapeake Bay Stock Assessment Committee, Annual Stock Assessment Workshop. Patuxent Wildlife Center, February 6, 2002

  • Mann, R. Oyster Population Estimation in Support of the Ten-Year Goal for Oyster Restoration in the Chesapeake Bay Fishery: Estimation of Virginia Stocks.
  • Mann, R. Fishery Independent Standing Stock Surveys of Hard Clam Populations in the Chesapeake Bay and a Comparison with Continuing Estimates from Fishery Dependent Data.
  • Harding, J. M. and R. Mann. Early life history tactics of veined Rapa Whelks (Rapana venosa) in Chesapeake Bay: blueprint for a successful bioinvasion by stealth.

Aquatic Nuisance Species Symposium, Arlington, VA, February 2002

  • Mann, R. and J. M. Harding. Estimation of dispersal and establishment range for the predatory marine gastropod Rapana venosa on the U.S. East Coast. 
  • Ware, C., J. M. Harding and R. Mann, Identification of spatial breeding limitations in effecting invasions: local variation in egg capsule morphology and larval viability in the invading predatory marine gastropod Rapana venosa.

National Shellfisheries Association.  April  2002

  • Southworth, M., J. M. Harding and R. Mann. 2002, in press.  Population structure of the hard clam, Mercenaria mercenaria, in Hampton Roads, Virginia.  J. Shellfish Research.

American Fisheries Society Meeting, Baltimore, MD, August 2002

  • Mann, R. and J. M. Harding. 2002. Current status and potential establishment range for the predatory marine gastropod Rapana venosa on the U.S. East Coast. 
  • Walter, J. F., R. Lipcius,, R. Mann, and J. M. Harding. 2002.  Predation of Rapana venosa on the hard clam, Mercenaria mercenaria, in the Chesapeake Bay.
  • R. Mann and P. Kingsley-Smith Oyster larvae and recruitment: the paradox of turbidity, salinity and larval feeding conditions. J. Shellfish Research.
  • Mann, R. andJ. M. Harding. Encroachment into shellfish restoration efforts: invasion patterns of the gastropod Rapana venosa in the Chespeake Bay.

International Conference on Shellfish Restoration. November 2002

AFS Symposium on Impacts of Fishing Gear on the Benthos.  December 2002

  • Doolittle, D. A, M. R. Patterson, Z. Rahman, and R. Mann. Development of a method for the identification and quantification of biological targets detected by sidescan sonar with application to fisheries stock assessment from autonomous underwater vehicles. 

2001

Bioinvasions 2001, New Orleans, April 9-11, 2001

  • Mann, R. and J. M. Harding. Salinity tolerance of larval Rapana venosa: implications for dispersal and establishment range on the U.S. East Coast. 
  • Harding, J. M. and R. Mann.  Growth Rates of Larvae and Juvenile Veined Rapa Whelks, Rapana venosa, from Chesapeake Bay, U.S.A. from Hatch Through Age 1.
  • Westcott, E, R. Mann and J. M. Harding.  Reproductive Biology of Chesapeake Bay  U.S.A. Veined Rapa Whelks, Rapana venosa.
  • Ware, C, J. M. Harding, and R. Mann.   Temporal and Spatial Variation in Egg Cases of Rapana venosa from the Chesapeake Bay.
  • Gensler, A, R. Mann, and J. E. Graves.  The Genetics of Invasion: A Study of the Asian Veined Rapa Whelk, Rapana venosa.
  • Savini. D, J. M. Harding and R. Mann.  Experimental Evaluation of  Rapana venosa Feeding Rates Preying on the Bivalve Mercenaria mercenaria in the Lower Chesapeake Bay, U.S.A.
  • Green, R, R. Mann, and J. M. Harding.  Morphological Variation Between Three Populations of the Veined Rapa Whelk, Rapana venosa, a Recent Gastropod Invader of the Chesapeake Bay, Virginia, U.S.A. 

2000

International Conference on Shellfish Restoration. November 2000

  • Mann, R. Up close and personal: a suggested quantitative approach to broodstock enhancement on shellfish restoration sites
  • Harding, J. M. and R. Mann.  Essential or just opportunistic fish habitat?  Utilization of restored complex shellfish habitat by fish species.
  • Mann, R. and Juliana M. Harding. Coming soon to a restoration site near you: the invading, predatory Oriental gastropod Rapana venosa.

Restoration of oysters in Tomales Bay, CA Sea Grant, September 2000

  • Mann, R.  Restoration of oyster communities in Chesapeake Bay with implications for Tomales Bay.

4th International Larval Biology conference, June 24- 28, 2000, Santa Cruz, CA.

  • Harding, J.M. and Mann, R. 2000.  Larval ecology of the veined rapa whelk, Rapana venosa, from Chesapeake Bay, U.S.A.
  • Mann, R. and Harding, J.M. 2000.  Variability in larval development of veined rapa whelk, Rapana venosa, from Chesapeake Bay, U.S.A.: Implications for ecological success in local habitats.

Aquaculture Association of Canada, Moncton, NS.  May 2000

  • Mann, R. 2000. Restoring the oyster reef communities of the Chesapeake Bay: It’s not just the fishery anymore.

National Shellfisheries Association.  March 2000

  • Mann, R and J. M. Harding. 2000.  Veined Rapa Whelks (Rapana venosa) in the Chesapeake Bay: Current status and preliminary reports on larval growth and development.
  • Southworth, M, J.H. Harding and R. Mann.  2000. Abundance of small predatory gastropods (Urosalpinx cinera, Eupleura caudata, Rapana venosa) in relation to Lower Chesapeake Bay oyster (Crassostrea virginica) populations.
  • Luckenbach, M., O'Beirn, F., Harding, J.M., Mann, R. and Nestlerode, J. 2000.  Temporal patterns of fish and decapod utilization of oyster reefs: comparisons across an estuarine gradient.

Regional Oyster Restoration Workshop, January 2000, Waldorf, MD.

  • Mann, R. and J. E. Wesson.  2000. Oyster stock assessment in Virginia.