Resources

RRS Discovery D30

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD30
Cruise period1969-10-15 — 1969-12-15
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
ObjectivesThe main object was to work a day and night series of horizontal opening/closing midwater trawls from the surface to 1000m and if possible deeper at a position just north of the Cape Verde Islands.
Chief scientistPeter M David (National Institute of Oceanography)
Cruise reportRRS Discovery D30 cruise report d30.pdf (1.05 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Track chartsRRS Discovery D30 cruise track — d30track.pdf (0.02 MB) 
Measurements 
Physical oceanography 
BathythermographDescription: Bathythermographs measurements were taken at intervals throughout the cruise. No. of deployments not noted.
Biology and fisheries 
Pelagic fishDescription: A number of net hauls and pelagic lines were made during the cruise. No. of hauls not noted.
Demersal fishDescription: A number of net hauls and pelagic lines were made during the cruise. No. of hauls not noted.
Gear researchQuantity: activity duration in days = 3
Description: For the first few days of the cruise gear trials took place. No. of trials not noted.