Gulf of Maine Research Institute

Agenda Summary



Presentations	Note: Due to technical issues not all presentaitons were recorded.

There was a brief (15 20 minutes) presentation by each invited speaker that summarized the available information for their specialty topic, synthesized the major conclusions with regard to cod stock structure based on this information, and summarized the additional work that needs to be done to better inform the determination of cod stock structure.

Background Information
Each speaker provided the following in advance and these were posted on the workshop website (hosted by GMRI): Reading list of 5-6 key papers in the area of specialty of the speaker A copy of the speakers Powerpoint presentation Written summary and synthesis of the specialty area that includes: a. Summary of the major points from the key papers b. Synthesis of the major conclusions with regard to cod stock structure based on the available information and analyses for the specialty area c. Summary of additional work that needs to be done in the specialty area of research to better inform the determination of cod stock structure

Session Summary and Synthesis

At the end of the session, the session chair provided a summary and synthesis of the session. Each session had one or more rapporteurs to assist the session chair with preparing a summary and synthesis of the session.

*Workshop Sessions*

Session 1: General Implications Summary of the potential implications of defining inappropriate stock boundaries and ignoring sub-stock structure within stock units, as well as the potential advantages and disadvantages for both science and management of revising the status quo units. Keynote Session Summary Keynote - Rob Stephenson Keynote Presentation Keynote Summary Moderator - John Annala Session 2: Development of current management units Summary of the basis for and historical development of the current management units for cod in the Scotian Shelf, Georges Bank, Gulf of Maine, and southern New England regions. Session 2 Summary Historical development - Fred Serchuk Presentation Presentation Audio/Video Session Chair - Steve Cadrin Session 3: Broad Scale Stock Structure Review tagging, genetic, life history, and other data on the current management units to estimate rates of mixing and, conversely, independence. This synthesis should include the Gulf of Maine, Georges Bank, the Mid-Atlantic Bight, and the Scotian Shelf. Session 3 Summary Genetics - Adrienne Kovach Presentation Presentation Audio/Video Tagging studies, including movements - Shelly Tallack Presentation Presentation Audio/Video Summary Morphometrics - Graham Sherwood Presentation Presentation Audio/Video Summary Session Chair - Steve Cadrin Session 4: Fine Scale Population Structure Characterize the mechanisms that drive spatial finer scale dynamics of cod populations and the fishing fleet, including habitat status and distribution, behavioral diversity, oceanography, predator-prey dynamics, and other factors. Session 4 Summary Oceanography, including egg and larval transport - Jeff Runge Presentation Presentation Audio/Video Animation 1 Animation 2 Summary Habitat - Kevin Friedland Presentation Presentation Audio/Video Summary Life history parameters of GoM and Georges Bank cod - Loretta OBrien Presentation Presentation Audio/Video Summary Spawning site fidelity and fine scale population structure - Doug Zemeckis Presentation Presentaiton Audio/Video Summary Session Chair - Graham Sherwood Session 5: Evaluation of past and present fish and fisheries distributions Session 5 Summary Fishing behavior, esp. spatial patterns - Heather Deese Presentation Presentation Audio/Video Summary Historical fish and fisheries distributions - Karen Alexander,Ted Ames Presentation - Alexander Presentation Audio/Video Summary Presentation - Ames Presentation Audio/Video Summary Spatial and temporal patterns of the cod resources and fishery in US waters - Mike Palmer Presentation Presentation Audio/Video Summary Cod sentinel survey - Aaron Dority and Anna Henry Presentation Presentation Audio/Video Summary Session Chair - Tom Nies Session 6: Identification of Likely Stock Structure Scenarios Synthesize the data and analyses presented in 2 through 5 above to determine whether one or more alternative spatial configurations are more likely than the status quo. Session 6 Summary Session 7: Implications for Stock Assessment Evaluate the outcomes of alternative stock structure assumptions on stock status and yields. Session 7 Summary Stock assessment, esp. spatially structured - Yong Chen Presentation Presentation Audio/Video Summary Spatial modeling - Lisa Kerr Presentation Presentation Audio/Video Summary Session Chair - Kevin Friedland Session 8: Evaluation of potential future changes Session 8 Summary Planning for EBM - Mike Fogarty Presentation Presentation Audio/Video Climate change impacts - Mike Fogarty Presentation Presentation Audio/Video Implications/challenges for management - Tom Nies Presentation Presentation Audio/Video Summary Session Chair - Steve Cadrin Session 9: Recommendations for Phase 2 (Evaluation of Status Quo and Alternatives) Provide advice on what information and data are required to analyze the advantages and disadvantages of either maintaining the status quo or adopting different spatial configurations through simulation modeling Session Chair - Steve Cadrin Session 10: Overall Conclusions and Recommendations Overall conclusions and recommendations on most likely stock structure and appropriate management units Identify gaps in the data and analyses and recommend actions to address them Recommend next steps Session Chair - Steve Cadrin

CSW Sherwood_Morphometrics_Summary