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

Cruise inventory

FRV Explorer 4B/73

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier4B/73
Cruise period1973-06-08 — 1973-06-10
Objectives1) The current meter mooring near the Isle of May was successfully recovered
2) Samples of sediment, for biological and chemical analysis were collected at a series of stations near the Isle of May and one station off Cockenzie
3) An abridged hydrographic survey, consisting of some 23 stations, was conducted in the Firth of Forth. These samples will be examined for salinity, temperature, dissolved oxygen, nutirents, chlorophyll and carbon content.
4) A number of water samples were also collected for mercury, heavy metals, and organochlorine analysis

A fractured crankshaft in one of the main generators and the delay in its repair reduced the original programme 21/05/1973 till the 30/05/1973 by 7 days. It is hoped any omissions in the original programme may be corrected in the near future.
Chief scientistGraham Topping (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 4B/73 cruise report explorer4_73_ii.pdf — access key 'C' (0.04 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificIsle of May, Cockenzie, Firth of Forth
Physical oceanography 
Water bottle stationsQuantity: number of stations = 23
Chemical oceanography 
OxygenQuantity: number of stations = 23
PhosphateQuantity: number of stations = 23
NitrateQuantity: number of stations = 23
Total - NQuantity: number of stations = 8
AmmoniaQuantity: number of stations = 23
SilicateQuantity: number of stations = 22
Trace metalsDescription: including mercury and organochlorine analysis
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 23
Particulate organic matter (inc POC, PON)Quantity: number of stations = 23
Geology and geophysics 
Other geological/geophysical measurementsDescription: chemical analysis for sediments