FRV Clupea 0681C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0681C
Cruise period1981-04-27 — 1981-05-06
Port of departureAberdeen, United Kingdom
Port of returnBuckie, United Kingdom
Objectives1. To uplift and replace three hydrographic moorings in the Moray Firth.
2. To undertake a hydrographic and chemical survey of the Moray Firth.
3. To lay a long term hydrographic mooring off Ungam Island, Sullom Voe and the shorter term placing of caged queen scallops off Calback Ness.
4. To conduct a hydrographic and chemical survery within Sullom Voe.
Chief scientistJ H Anthony Martin (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0681C cruise report cl6_81.pdf (0.10 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificMoray Firth/ Shetland
Track chartsFRV Clupea 0681C cruise track — trk2718.html
Physical oceanography 
Water bottle stationsQuantity: number of stations = 26
Current metersQuantity: number of recoveries = 3
Description: 2 c.m.for 78d;1 c.m.for 38d
Chemical oceanography 
OxygenQuantity: number of stations = 14
PhosphateQuantity: number of stations = 26
Total - PQuantity: number of stations = 12
NitrateQuantity: number of stations = 25
Total - NQuantity: number of stations = 6
AmmoniaQuantity: number of stations = 24
SilicateQuantity: number of stations = 26
Petroleum residues
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 26
Particulate organic matter (inc POC, PON)Quantity: number of stations = 12