Cruise inventory

Researcher 2/78

Cruise summary report

Cruise Info. 
Ship nameResearcher
Cruise identifier2/78
Cruise period1978-03-17 — 1978-03-29
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
Objectives1. To measure levels of nutrients, chlorophyll, total suspended matter, organic matter and the zooplankton and phytoplankton populations.
2. To characterise the hydrographic conditions at the two sites.
3. To measure the feeding rates and development times of two species of copepods at the two sites.
4. To measure uptake and release of nutrients by micro-organisms.
5. To measure the release of nutrients by zooplankton.
Chief scientistBob Williams (Institute of Marine Environmental Research, Plymouth)
Cruise reportResearcher 2/78 cruise report researcher2_78.pdf — access key 'C' (0.19 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Track chartsResearcher 2/78 cruise track — trk1950.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)
Water bottle stationsQuantity: number of stations = 14
Description: S surface only
Chemical oceanography 
PhosphateQuantity: 65
NitrateQuantity: 65
NitriteQuantity: 65
AmmoniaQuantity: 65
SilicateQuantity: 65
Contamination 
Suspended matterDescription: continuous recording
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: continuous recording
Particulate organic matter (inc POC, PON)Quantity: 65
PhytoplanktonQuantity: 17
ZooplanktonQuantity: 5
Description: survey:taxonomy,energy transfers,biomass etc. studies
SestonDescription: continuous recording