This dataset describes green crab (Carcinus maenas) density at rocky intertidal sites in the northern (4 sites) and southern (4 sites) Gulf of Maine.
We conducted crab surveys in 2019, 2020, and 2021 at eight sites in the Gulf of Maine (GOM) that are sheltered from direct wave action to characterize local and regional variation in green crab (Carcinus maenas) abundance. Four sites were located in the northern Gulf (Quoddy Region) and the other four were located in the southern Gulf (Nahant, MA to Cape Ann, MA). Surveys involved walking through the site and searching through the algal canopy, underneath boulders, and within cracks and crevices in the substratum. Each survey was conducted by 1 person and lasted 1 hour each. Surveys began and concluded within 2 hours of low tide, and were conducted approximately every two months at all 8 sites from April through November/early December in 2019, 2020, and 2021. The total number of crabs captured by hand in one hour of searching was recorded.
Trussell, G. C., Corbett, J. J. (2023) Green crab (Carcinus maenas) density at rocky intertidal sites determined at 8 sites in the Gulf of Maine from April 2019 to December 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-10-12 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.911365.1 [access date]
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