1. To assess the effect on fish escapes of creating high visible contrast between square mesh panel and cod-end, using the RCTV and cameras mounted on the net to make observations.
2. To measure the selectivities of high and low contrast panel/cod-end combinations.
3. To use light intensity depth profiles made before and after each haul to infer light levels during the tow.
4. To compare the performance of a photomultiplier and photodiode light intensity recorder against the Lab's own photomultiplier.
Emma Jones (Fisheries Research Services Aberdeen Marine Laboratory)