Biofouling data from underwater surveys of commercial ships in Canada

Ship biofouling is a major vector for the introduction and spread of
harmful marine species globally. Comprehensive underwater sampling and
video recording of ship hulls was conducted to assess biofouling extent
(percent cover, total abundance and species richness) on a subset of ships
arriving to Canadian waters. The dataset includes
underwater biofouling assessments from 53 commercial ships
arriving at Halifax, Nova Scotia (20 international
ships), Vancouver, British Columbia (20 international ships)
during 2007–2009, and Churchill, Manitoba (11 international and
2 domestic ships) in 2010–2011. Potential explanatory variables
in the dataset include ship size, typical sailing speed, port residence
time, age of antifouling coating system and travel history (number of
biogeographic realms visisted, and average, minimum and maximum
port latititude).