RRS Discovery D77

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD77
Cruise period1976-07-15 — 1976-08-31
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
ObjectivesThe aims of Cruise 77 were to combine the collection of live materials for shipboard physiological and/or biochemical investigation with the specific sampling requirements of the IOS Wormley biological programme. The physiological and biochemical programmes concentrated largely on studies of bioluminescence and eye structure and function in a wide variety of both midwater and benthic animals. They also included studies on lipid metabolism and echinoid biology.
Chief scientistPeter J Herring (Institute of Oceanographic Sciences Wormley Laboratory)
ProjectDistribution & physiology of plankton & benthos in the region of the Canary Islands
Cruise reportRRS Discovery D77 cruise report d77.pdf (17.22 MB) 
Ocean/sea areas 
GeneralBay of Biscay
North East Atlantic Ocean (limit 40W)
Track chartsRRS Discovery D77 cruise track — trk1650a.html RRS Discovery D77 cruise track — trk1650b.html
Physical oceanography 
CTD stationsQuantity: number of stations = 8
Optics (eg underwater light levels)Quantity: 6
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 4
PhytoplanktonQuantity: 12
ZooplanktonQuantity: number of hauls = 115
NektonQuantity: number of hauls = 115
ZoobenthosQuantity: 35
Pelagic fishQuantity: number of hauls = 115