Cruise inventory

FRV Clupea 0581C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0581C
Cruise period1981-04-13 — 1981-04-23
StatusCompleted
Port of departureBuckie, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
Objectives1. To compare selectivity of 25 and 35mm mesh shrimp trawls.
2. To determine the quantity of the by-catch of the two nets and the proportion discarded.
3. To make photographic observations of mud communities and to determine density of shrimps.
Chief scientistF Godfrey Howard (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), James A Sinclair (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0581C cruise report cl5_81.pdf — access key 'C' (0.07 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificE. Scotland
Track chartsFRV Clupea 0581C cruise track — cl5_81track.pdf (00 MB) 
Measurements 
Biology and fisheries 
Demersal fishQuantity: number of hauls = 16
Description: made using 25mm and 35mm shrimp trawls.
CrustaceansQuantity: number of hauls = 16
Description: made using 25mm and 35mm shrimp trawls.
Geology and geophysics 
Bottom photographyDescription: underwater television and photographic work.