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

Cruise inventory

RRS Shackleton B/2/77 (S3A/77)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Shackleton (74SF)
Cruise identifierB/2/77 (S3A/77)
Cruise period1977-02-08 — 1977-02-19
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
Objectives1) To measure the spacial variability of dissolved organic and inorganic nutrients, phytoplankton and zooplankton

2) To measure the fluxes of organic and inorganic nutrients between phytoplankton, heterotrophic microbes and omnivorous zooplankton and to measure the rates of primary and secondary production.

3) To make current meter measurements at 2 stations as a reconaissance for long-term deployment of current meters
Chief scientistIan Joint (Institute of Marine Environmental Research, Plymouth)
Cruise reportRRS Shackleton B/2/77 (S3A/77) cruise report shackleton3a_77.pdf — access key 'C' (0.13 MB) 
Ocean/sea areas 
GeneralBristol Channel
Track chartsRRS Shackleton B/2/77 (S3A/77) cruise track — trk1769.html
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 12
Water bottle stationsQuantity: number of samples = 300
Description: surface only
CTD stationsQuantity: number of profiles = 300
Current metersQuantity: number of deployments = 2
Description: 5 days
Chemical oceanography 
PhosphateQuantity: number of samples = 3000
NitrateQuantity: number of samples = 3000
NitriteQuantity: number of samples = 3000
Suspended matterQuantity: number of samples = 300
Biology and fisheries 
Primary productivityQuantity: number of experiments = 5
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 40
Dissolved organic matter (inc DOC)Quantity: number of samples = 700
Dissolved organic matter (inc DOC)Quantity: number of samples = 700
ZooplanktonQuantity: number of samples = 30
Data held at BODC 
Discrete samples 
604  General station with STD/bottles/additional instrumentsChlorophyll pigment concentrations in water bodies
Dissolved organic carbon concentration in the water column
Salinity of the water column
Concentration of suspended particulate material in the water column
Horizontal velocity of the water column (currents)
Temperature of the water column
Phaeopigment concentrations in the water column
21  Lowestoft SamplerZooplankton taxonomy-related abundance per unit volume of the water column
Fish abundance in water bodies