Distributional notes of Harpacticoida (Crustacea: Copepoda) collected from the Beaufort Sea (Arctic Ocean)

Forty-one species of large-size Harpacticoida have been sorted from Smith-McIntyre grab samples sieved through 1.00 and 0.2 mm aperture screens. Fifty-eight stations were occupied throughout the southwestern Beaufort Sea, ranging from Point Barrow, Alaska (USA) west, to Demarcation Point, the eastern border with Canada. The depth of the study area ranged from 5-3500 m. Harpacticus superflexus Willey and Stenhelia nuwukensis M. S. Wilson dominated the samples numerically. Though H. superflexus was ubiquitous, S. nuwukensis was restricted to a narrow range of shallow waters. The female to male ratio was 99:1. It is not known why there is such a preponderance of females, but sexually dimorphic characters may be absent or the smaller males may have passed through the sieve.