Oyster Population Surveys

Oysters are sampled twice a year in Spring and Fall to represent the start and end of the oyster growing season in the mid-Atlantic. We use hydraulic patent tongs to sample a 1meter-squared area of reef bottom and take 3-5 samples from each planting location. Samples are rinsed and sorted onboard Stockton's RV Petrel. These surveys assess universal metrics for oyster habitat restoration:

1) Oyster density

2) Settlement and recruitment

3) Size frequency

Additional assays are performed from subsamples of oysters for biomass (dry weight), Condition Index, and disease testing (Dermo and MSX). 

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