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FRV Clupea 1204C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1204C
Cruise period2004-08-11 — 2004-08-30
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
PurposeResearch
ObjectivesTo conduct a late summer survey of a suite of sea lochs/voes impacted to varying degrees by nutrient releases from fish farming activity. This survey forms part of an ongoing programme of work to assess the potential for eutrophication arising from nutrient hotspots linked to aquaculture. This will be undertaken by measuring the following parameters at multiple stations in each loch:
1. CTD and dissolved oxygen
2. Nutrients (inc. silicates)
3. Chlorophyll a
4. Phytoplankton
5. Shoreline macroalgae
6. Organic carbon in sediments
7. Algal toxins in wild shoreline mussels
These determinands will be assessed against criteria as defined by the OSPAR Eutrophication Task Group and used for future eutrophication assessment of Scottish coastal waters. Data will also be compared to that collected during previous cruises and will be used to inform estimates of internal mixing within sea lochs/voes to improve laboratory models to predict nutrient enhancement from aquaculture.
Chief scientistMatt Gubbins (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise programmeFRV Clupea 1204C cruise programme 1204c.pdf  (0.03 MB) 
Cruise reportFRV Clupea 1204C cruise report 1204c.pdf (0.07 MB) 
Ocean/sea areas 
GeneralNorth Sea
Inner Seas off the West Coast of Scotland
SpecificBadcall Bay, Loch Ewe, Loch Torridon, Loch Skiport, Loch Shell, Loch Greshornish, Loch Snizort Beg, Sandsound Voe, Gruting Voe, Basta Voe, Mid Yell Voe, Baltasound, Whalefirth Voe, Sullom Voe
Measurements 
Physical oceanography 
CTD stations
Chemical oceanography 
OxygenDescription: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
PhosphateDescription: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
NitrateDescription: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
NitriteDescription: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
SilicateDescription: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
Contamination 
Contaminants in organismsDescription: Screening of phytoplankton
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
Dissolved organic matter (inc DOC)Description: Nutrient, chlorophyll, dissolved oxygen and sediment analysis.
Phytoplankton
PhytoplanktonDescription: Screening of phytoplankton
Zooplankton
Geology and geophysics 
Grab