Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RV Corella 7/67

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier7/67
Cruise period1967-10-20 — 1967-11-01
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To carry out trials of the high power 100 kHz echo sounder,
together with measurements of target strengths.
2. Trials of the modified acoustic arch system on ground and midwater trawls.

A number of records were taken of target strength from single fish. Underwater television was used at night to look at the loch bed and the fish in Loch Torridon. Pictures were taken of the bottom. Excellent results were obtained from the acoustic arch units. Tests of the 100 kHz equipment were made
Chief scientistRonald B Mitson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 7/67 cruise report corella07_67.pdf — access key 'C' (0.16 MB) 
Ocean/sea areas 
GeneralNorth Sea
Inner Seas off the West Coast of Scotland
SpecificLoch Torridon, Stornoway, Moray Firth, Farne Deeps
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 2
Description: 4 baskets of blue whiting were caught on 2 tows of the trawl in Stornoway. 1 shot of the trawl caught 20 baskets of blue whiting
Gear researchQuantity: number of hauls = 5
Description: 1 trawl haul shot to obtain fish for echo targets,1 shot in 65 fathoms with no units fitted and again with the acoustic arch units mounted.