Shellfish Publications

Papers and Reports

Uncovering the Life Cycle of the Ocean Quahog Can Balance Economic and Ecologic Goals – June 2020

61st Northeast Regional Stock Assessment Workshop (61st SAW) Assessment Report (2016) (NEFSC access to sections)

Hemeon, K.M.  E.N. Powell, E. Robillard, S.M. Pace, T.E. Redmond, and R. Mann. (2021) Attainability of Accurate Age Frequencies for Ocean Quahogs (Arctica islandica) Using Large Datasets: Protocol, Reader Precision, and Error Assessment, J. of Shellfish Research, 40(2):255-267.

Hofmann, E.E., E.N. Powell, J.M. Klinck, D.M. Munroe, R. Mann, D.B. Haidvogel, D.A. NarvÁEz, X. Zhang, K.M. Kuykendall. (2018). An overview of factors affecting distribution of the Atlantic surfclam (Spisula solidissima), a continental shelf biomass dominant, during a period of climate change. J. Shellfish Res. 37:821-831

Jacobson L, Hennen D. (2019). Improving the NEFSC clam survey for Atlantic surfclams and ocean quahogs. US Dept Commerce, Northeast Fish Sci Cent Ref Doc. 19-06;  89 p.

Kuykendall, K.M., P. Moreno, E. N. Powell, T. M. Soniat, S. Colley, R. Mann, D. M. Munroe. (2015). The exposed surface area to volume ratio: Is shell more efficient than limestone in promoting oyster recruitment?  J. Shellfish Research. 34(2):217-225. DOI:

Kuykendall, Kelsey, Eric N. Powell, John M. Klinck, Paula T. Moreno, Robert T. Leaf. (2019). The effect of abundance changes on a management strategy evaluation for the Atlantic surfclam (Spisula solidissima) using a spatially explicit, vessel based fisheries model. Ocean and Coastal Management 169 (2019) 68–85

Munroe, D.M., D.A. Narvaez, D. Hennen, L. Jacobson, R. Mann, E.E. Hofmann, E.N. Powell, J.M. Klinck. (2016). Fishing and bottom water temperature as drivers of change in maximum shell length in Atlantic surfclams (Spisula solidissima). Estuarine and Coastal Shelf Science. 178

Murray, Thomas. (2016). Economic Activity Associated with SCeMFiS Supported Fisheries Products (Ocean Quahog & Atlantic Surfclams).

NarvÁEz, D., Munroe, D., Hofmann, E., Klinck, J.N., Powell, E.N., Mann, R. & E. Curchitser. (2014). Long-term dynamics in Atlantic surfclam (Spisula solidissima) populations: The role of bottom water temperature. Journal of Marine Systems. 141. 10.1016/j.jmarsys.2014.08.007.

Pace, S. M., Powell, E. N., Mann, R, and M.C. Long. (2017) Comparison of Age-Frequency Distributions for Ocean Quahogs (Arctica islandica) in the Western Atlantic U.S. Continental Shelf. Marine Ecology Progress Series. Vol. 585: 81–98, 2017

Pace, S. M., Powell, E. N., Mann, R, Long, M.C., and J.M. Klinck. (2017). Development of an Age-Frequency Distribution for Ocean Quahogs (Arctica islandica) on Georges Bank. J. Shellfish Res. 36: 41-53.

Poussard, L. (2020) An Analysis of Dredge Efficiency for Surfclam and Ocean Quahog Commercial Dredges. University of Southern Mississippi.

Poussard, L.M., E.N. Powell, D.R. Hennen. (2021) Efficiency estimates from depletion experiments for sedentary invertebrates: evaluation of sources of uncertainty in experimental design

Powell, E.N. R.L. Mann, M.C. Long, Jeremy R. Timbs, K.M. Kuykendall (2021). The conundrum of biont-free substrates on a high-energy continental shelf: Burial and scour on Nantucket Shoals, Great South Channel, Estuarine, Coastal and Shelf Science 249, 107089Estuarine, Coastal and Shelf Science 249 (2021) 107089

Powell, E.N., A.M. Ewing, K.M. Kuykendall. 2020. Ocean quahogs (Arctica islandica) and Atlantic surfclams (Spisula solidissima) on the Mid-Atlantic Bight continental shelf and Georges Bank: the death assemblage as a recorder of climate change and the reorganization of the continental shelf benthos. Palaeogeogr. Palaeoclimatol. Palaeoecol. 537: #109205, 16 pp.

Powell, E.N., J.M. Trumble, R.L. Mann, M.C. Long, S.M. Pace, J.R. Timbs, K.M. Kuykendall. (2020). Growth and longevity in surfclams east of Nantucket: Range expansion in response to the post-2000 warming of the North Atlantic, Continental Shelf Research. 195 (2020): 104059

Powell, E.N., Mann, R., Ashton-Alcox, K.A., Kuykendall, K.M., and M.C. Long. (2017). Can we estimate molluscan abundance and biomass on the continental shelf? Estuarine, Coastal and Shelf Science. 198: 213-224

Powell, E.N., Kuykendall, K.M., and P. Moreno. (2017). The death assemblage as a marker for habitat and an indicator of climate change: Georges Bank, surfclams and ocean quahogsContinental Shelf Research, 142 (2017): 14-3

Powell, E.N. and R. Mann. (2016). How well do we know the infaunal biomass of the continental shelf? Continental Shelf Research. 115: 27

Powell, E.N., J.M. Klinck, D.M. Munroe, E.E. Hofmann, P. Moreno and R. Mann. (2015). The value of captains’ behavioral choices in the success of the surfclam (Spisula solidissima) fishery on the U.S. Mid-Atlantic coast: a model evaluation. Journal of Northwest Atlantic Fishery Science. 47:1-27.

Powell, E.N., Klinck, J.M., Hofmann, E.E., Moreno, P., Kuykendall, K., Munroe, D.M., and R. Mann. (2016). Captains’ response to a declining stock as anticipated in the surfclam (Spisula solidissima) fishery on the U.S. Mid-Atlantic coast by model evaluation, Ocean & Coastal Management, 134, pp. 52-68.

Powell, E.N. and R. Mann. (2018). Growth and Longevity in Surfclams East of Nantucket

Powell, E.N. (2018). Further Evaluations of the Relationship of Cobbles and Rocks to Surfclams

Powell, E.N., Kuykendall, K., and Moreno, P. (2016). An Analysis of ancillary survey data and surfclam fishery tow data for the Georges Shoals Habitat Management Area on Georges Bank and the Great South Channel Habitat Management Area

Scheld, A. 2020. Economic Impacts Associated with the Commercial Fishery for Longfin Squid (Doryteuthis pealeii) in the Northeast U.S., Virginia Institute of Marine Science. March 2020.

Timbs, Jeremy, Powell, E., Mann, R. (2018). Assessment of the Relationship of Stock and Recruitment in the Atlantic Surfclam Spisula solidissima in the Northwestern Atlantic Ocean. J. of Shellfish Research, 37(5):965-979.



  • Dameron-Kubiak Dredge Powerpoint Presentation
  • Kuykendall, K., Powell, E.N., Mann, R., and P. Moreno. (2016). Identifying the historical footprint of the surfclam Spisula solidissima and habitat relationships from a long-term dataset of death assemblage and sedimentology. American Fisheries Society 146 Annual Meeting. Kansas City, Missouri
  • Kuykendall, K., E.N. Powell, J. Klinck, R.T. Leaf, and P. Moreno. (2015). Management strategy evaluation for the Atlantic surfclam Spisula solidissima using a fisheries economics model. American Fisheries Society 145th annual meeting. Portland, Oregon
  • Mann, R. (2014). SCeMFiS, a new cooperative research effort. Atlantic States Marine Fisheries Commission. Providence, Rhode Island.
  • Mann, R. D. Munroe, K. Kuykendall and E. N. Powell. (2014). A simple method for correction of breakages losses in clam surveys. Jacksonville, Florida
  • Pace, S., E.N. Powell, and R. Mann. (2016). Population age frequencies and evidence of multidecadal recruitment in the ocean quahog. American Fisheries Society 146 Annual Meeting. Kansas City, Missouri.
  • Pace, S.M., E.N. Powell, and R. Mann. (2016). Evidence of multidecadal recruitment in the ocean quahog, Arctica islandica in the western Atlantic Ocean. International Council for the Exploration of the Sea (ICES). Riga, Latvia
  • Powell, E.N., J. Klinck, E. Hofmann, P. Moreno, K. Kuykendall, D. Munroe, and R. Mann. (2015). Captains’ response to a declining stock as anticipated in the surfclam (Spisula solidissima) fishery. American Fisheries Society 145th annual meeting. Portland, Oregon.
  • Russell, K., Long, M.C., Redmond, T., Mann, R., and Powell, E. (2019). Can we Discern Major Meterologic and Environmental Events in the Growth Record of the Long Lived Clam Arctica islandica. National Shellfisheries Association, New Orleans, Louisiana