Abstract
We describe a sled sampler designed to collect adhesive eggs or non-adhesive eggs of high specific gravity in inner-shelf areas of heterogenous substrate type. A self-adjusting grating controls off-bottom height of entry ramps leading to the sampler and allows sampling over previously inaccessible topographical irregularities. The sampler was tested in field trials that located and mapped a previously unknown spawning ground of English sole ( Parophrys vetulus). On a known spawning ground of English sole, the sampler also collected demersal and adhesive eggs of Pacific cod ( Gadus macrocephalus) and of sand lance ( Ammodytes hexapterus). Eggs of the cod have not been collected previously with substrate-sampling gear. The semi-quantitative catches are sufficient for location and mapping of spawning grounds.
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