RRS Frederick Russell FR22/84

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Frederick Russell (74GG)
Cruise identifierFR22/84
Cruise period1984-12-07 — 1984-12-13
Port of departurePlymouth, United Kingdom
Port of returnPlymouth, United Kingdom
ObjectivesTo study the aspects of overwintering strategies of neritic copepods.
(1) To determine the abundance, identity and viability of calanoid copepod eggs in representative sea bed sediments under a range of depths of water. The sediment samples will also be used for the study of dinoflagellate cysts.
(2) To identify aggregations of planktonic calanoid copepods on the sea bed (to feed on sedimented detritus) when suspended food in the water column is scarce and to determine the structure of the populations of calanoid copepods.
(3) To assess the comparative importance of lipid reserves in calanoids, particularly Pseudocalanus elongatus and Acartia clausi.
Chief scientistJ Alistair Lindley (Institute of Marine Environmental Research, Plymouth)
Cruise reportRRS Frederick Russell FR22/84 cruise report frederick_russell22_84.pdf (0.10 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificEnglish Channel/ S. Bight of N. Sea
Track chartsRRS Frederick Russell FR22/84 cruise track — trk3020.html
Physical oceanography 
Surface measurements underway (T,S)Description: T only
Biology and fisheries 
PhytoplanktonQuantity: 14
ZooplanktonQuantity: 14
Description: survey:population structures,distribution,biomass determination
Other biological/fisheries measurementQuantity: number of samples = 11
Description: bottom sediment samples were taken for analyses of resting eggs and cysts of planktonic species