FRV Clupea 0294C
Cruise summary report
|Ship name (ship code)||FRV Clupea (74CU)|
|Cruise period||1994-01-27 — 1994-02-10|
|Port of return||Fraserburgh, United Kingdom|
|Objectives||1. To assess significance of light levels in determining night and day selectivity mechanisms affecting fish in cod-ends.
2. To assess small fish escape routes at night using small mesh pocket covers.
3. To assess the effectiveness of glowtwine in promoting escape behaviour under dark conditions.
4. To assess and quantify the visual contrast of a selection of fishing materials against the water background when viewed from different angles and under varying water conditions.
|Chief scientist||Clem S Wardle (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)|
|Cruise report||(0.03 MB)|
|Specific||Inganess Bay, Orkneys|
|Optics (eg underwater light levels)||Quantity: number of profiles = 6|
|Biology and fisheries|
|Gear research||Quantity: number of hauls = 4|
Description: Gear development