http://worldcat.org/entity/work/id/320532026

Distribution and abundance of barndoor skate Dipturus laevis in the Canadian Atlantic based upon research vessel surveys and industry/science surveys Distribution et abondance de la grande raie Dipturus laevis dans l'Atlantique canadien basées sur des relevés de navire de recherche et des relevés de l'industrie/science

Barndoor skate is reported to be the largest skate in the north-west Atlantic, growing to about 1.5 metres long. It has not been reported as a common species nor has it ever been targeted for exploitation. This document represents a comprehensive examination of all Fisheries & Oceans Canada surveys that might provide information on the occurrence of barndoor skate in the broad geographic area between Georges Bank and northern Labrador. The data reviewed are from three principal sources: seasonal research vessel surveys that have been carried on for decades using standard sampling protocols; non-standard research vessel surveys pre-1970; and industry/science surveys that began mid-1990s using fixed or mobile gear. Generally, the data is composed of number or weight caught, latitude & longitude, depth of capture, time of day, and gear type. More detailed information such as individual length, weight, & sex are available from a subset of the surveys. The data are both tabulated & portrayed geographically to show the skate's distributional patterns.

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