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2013 RSA: Identifying Source Sink Dynamics in Scallop Populations Jonathan Grabowski, Steve Vollmer, Brad Harris, & Kevin Stokesbury 2014 RSA: INVESTIGATING THE EFFECTS OF OCEAN ACIDIFICATION AND WARMING ON THEIR SHELL PROPERTIES AND MEAT

  1. 2013 RSA: Identifying Source Sink Dynamics in Scallop Populations Jonathan Grabowski, Steve Vollmer, Brad Harris, & Kevin Stokesbury

  2. 2014 RSA: INVESTIGATING THE EFFECTS OF OCEAN ACIDIFICATION AND WARMING ON THEIR SHELL PROPERTIES AND MEAT WEIGHTS

  3. 2014 RSA: INVESTIGATING THE EFFECTS OF OCEAN ACIDIFICATION AND WARMING ON THEIR SHELL PROPERTIES AND MEAT WEIGHTS Harris and Stokesbury 2010; Harris 2011

  4. 2013 RSA: Source Sink Dynamics Background Harris and Stokesbury 2010; Harris 2011

  5. Project Goals Objective 1: Determine persistent aggregations of scallops in the Gulf of Maine, Southern New England, and Mid Atlantic regions Objective 2: Examine source-sink dynamics and the degree of connectivity among scallop populations located in each of the 4 regions of the U.S. fishery

  6. I. Mapping Scallop Aggregations UMass SMAST Video Surveys (1999-2012)

  7. Persistent Scallop Aggregations

  8. II. Inferring Scallop Stock Structure with Genomics Approach • RAD-seq [10K+ SNPs] Atlantic Sampling • 4 closed areas • Adults vs. Juvenile Questions • Are Scallop populations interconnected and/or self- seeding? • On what geographic scale do Scallop stocks need to be managed? From floragenex.com

  9. Current and Proposed Scallop Sampling

  10. RAD-seq Provides Genome-level Resolution

  11. Assigning Humans [or Scallops] to their Genetic Source Moreno-Estrada; PLoS Genetics

  12. Acknowledgements • NOAA Scallop RSA program & the captains and crews of the participating vessels in compensation fishing: FV Ocean Boy, FV Hawk, FV Resilient, FV Kathy Anne, FV Mister G, FV Thunder Bay, FV Ranger, FV Friendship, & FV Horizon • General guidance and assistance with RSA & collecting scallop samples: Susan Inglis, Ron Smolowitz, Katherine Thompson, Ronnie Enoksen, Kathryn Goetting, Justin Libby, Togue Brawn, David Rudders, Dan Eilertsen, Captain Tom Nicholas (FV Liberty), Captain Stephen Sukeforth (F/V Horizon) and FV Venture • Northeastern University technicians, students and administrative support: Steve Heck, Jen Davidson, Nathaniel Chu, Chris Baillie, Chris Conroy, Marissa McMahan, Robert Murphy, Heather Sears, and Eric Jones

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