Table 1: Line and point sampling effort, average seastate and wind speed during five seabirds at-sea surveys in the Gulf of St. Lawrence in 2009 and 2010.

Cruise Observer Date Survey transects Transect length (km) No. of point counts Seastate 1 Wind
(Knots ± S.E.)
Black09 A April 46 869.2 3751 2.1 ± 0.2 13.9 ± 1.0
Teleost09 A June 75 1843.6 5230 2.2 ± 0.2 13.1 ± 1.0
Hudson09 B Nov. 54 1135.5 3177 2.5 ± 0.2 17.1 ± 1.0
Teleost10 C June 73 1808.2 5131 2.7 ± 0.2 12.6 ± 1.0
Hudson10 B Nov. 48 1025.0 2622 2.5 ± 0.2 16.2 ± 1.0
Total 296 6681.5 19911

1 Seastate was coded following the Beaufort scale. Average seastate and wind speed are geometric least-square means.