Cruise inventory

Sunbeam Sandeel_84

Cruise summary report

Cruise Info. 
Ship name (ship code)Sunbeam (740P)
Cruise identifierSandeel_84
Cruise period1984-08-01 — 1984-08-17
Port of departureLerwick, United Kingdom
Port of returnLerwick, United Kingdom
Objectives1. To carry out a bottom trawl survey to determine the distribution of 1-group and older sandeels (Ammodytes marinus) in Shetland Waters.
2. To collect data on length and age distribution by fishing grounds, depth of water, type of substrate, time of day and state of tide.
3. To collect samples of bottom sediment from trawling positions to determine particle size and suitability for sandeels.
4. To identify all fish species preying on sandeels and to determine the size preference of different predators.
5. To carry out a prelimiary investigation of the depth distribution of sandeels from echo-sounder records and observation of sea-bird feeding behaviour.
Chief scientistJ A Gauld (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportSunbeam Sandeel_84 cruise report sunbeam_aug84.pdf — access key 'C' (0.14 MB) 
Ocean/sea areas 
GeneralNorth Sea
North East Atlantic Ocean (limit 40W)
SpecificSE/N/SW Shetland, Foula, Brekkin, Balta, Fair Isle, Sands Voe, Bressay
Track chartsSunbeam Sandeel_84 cruise track — sunbeam_aug84track.pdf (0.02 MB) 
Biology and fisheries 
Demersal fishQuantity: number of hauls = 81
Description: A number of trawls were made using a standard sandeel trawl and of varying duration.
Geology and geophysics 
In-situ seafloor measurement/samplingQuantity: number of samples = 22
Description: A number of bottom sediment samples were collected from various sites.
Multi-beam echosoundingDescription: A number of echo-sounders were run throughout the cruise. No. of surveys not noted.