FRV Clupea 0604C
Cruise summary report
|Ship name (ship code)||FRV Clupea (74CU)|
|Cruise period||2004-04-02 — 2004-04-21|
|Port of departure||Fraserburgh, United Kingdom|
|Port of return||Fraserburgh, United Kingdom|
|Objectives||To conduct a 'spring' survey of a suite of sea lochs/voes impacted to various 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:
2. Nutrients (including silicates)
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 2002 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 scientist||Matt Gubbins (Fisheries Research Services Aberdeen Marine Laboratory)|
|Cruise report||(0.24 MB)|
Inner Seas off the West Coast of Scotland
|Specific||Western Isles; Skye; Edrachillis Bay; Shetland|
|CTD stations||Quantity: number of profiles = 119|
|Phosphate||Description: Survey for nutrients to assess potential for eutrophication.|
|Nitrate||Description: Survey for nutrients to assess potential for eutrophication.|
|Nitrite||Description: Survey for nutrients to assess potential for eutrophication.|
|Silicate||Description: Survey for nutrients to assess potential for eutrophication.|
|Biology and fisheries|
|Phytoplankton pigs (eg chlorophyll, fluorescence)||Description: Survey for nutrients to assess potential for eutrophication.|
|Phytoplankton||Quantity: number of samples = 90|
Description: samples collected using phytoplankton hose.
|Zooplankton||Quantity: number of hauls = 29|
|Benthic bacteria/micro-organisms||Quantity: number of samples = 73|
Description: macroalgae sites sampled using Zodiak inflatable.
|Other biological/fisheries measurement||Quantity: number of samples = 45|
Description: Toxic phytoplankton samples
|Geology and geophysics|
|Grab||Quantity: number of samples = 138|
Description: Day grab sediment samples.