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Using Shellfish Population Field Surveys to Inform Management Decisions

Using Shellfish Population Field Surveys to Inform Management Decisions. Quonochontaug Pond, RI. Donor Site. Transplant Site. Ninigret Pond. Ninigret Pond. Constas et al. 1980. Estimated Quahog Population = 5,241,309 Average Pond-wide Density = 1.12 clams/m 2.

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Using Shellfish Population Field Surveys to Inform Management Decisions

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  1. Using Shellfish Population Field Surveys to Inform Management Decisions Quonochontaug Pond, RI

  2. Donor Site Transplant Site

  3. Ninigret Pond

  4. Ninigret Pond

  5. Constas et al. 1980 Estimated Quahog Population = 5,241,309 Average Pond-wide Density = 1.12 clams/m2 The Nature Conservancy 2010 n = 126 Estimated Quahog Population = 3,316,412 Average Pond-wide Density = 0.98 clams/m2 SUBLEGAL 69.8% LEGAL 30.2% 47 mm 72 mm 88 mm LITTLENECKS 78.9% CHERRYSTONES 18.4% CHOWDERS 2.6% FREQUENCY SHELL LENGTH (mm) LENGTH FREQUENCY OF QUAHOGS IN NINIGRET POND

  6. The Nature Conservancy 2010 Constas et al. 1980 QUAHOG DENSITY BY SUBSTRATE

  7. DISCUSION OF MANAGEMENT IMPLICATIONS

  8. Questions?

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