FRV Clupea 0702C
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Clupea (74CU) |
| Cruise identifier | 0702C |
| Cruise period | 2002-04-26 — 2002-05-09 |
| Status | Completed |
| Port of departure | Fraserburgh, United Kingdom |
| Port of return | Fraserburgh, United Kingdom |
| Purpose | Research |
| Objectives | To conduct a 'spring' survey of a suite of sea lochs impacted to varying degrees by nutrient releases from fish farming activity. This survey will form part of a 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 2. Nutrients and silicates 3. Chlorophyll 4. Phytoplankton These determinands will be assessed against criteria as defined by the OSPAR Eutrophication Task Group. |
| Chief scientist | Matt Gubbins (Fisheries Research Services Aberdeen Marine Laboratory) |
| Project | Survey of nutrient enhancement effects |
| Coordinating body | FRS Marine Laboratory |
| Cruise report |  (1.21 MB) |
| Ocean/sea areas | |
| General | North Sea Inner Seas off the West Coast of Scotland |
| Specific | 12 Lochs: Ewe, Torridon, Snizort Beg, Uig Bay, Kilerivagh, Grimshader, Olna Firth, Aith Voe, Vaila Sound, Sandsound Voe, Swining Voe, Collafirth Voe |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of profiles = 89 Description: 1-6 depth water sampling stations, by 12 bottle rosette sampler |
| CTD stations | Quantity: number of profiles = 89 Description: Sealogger CTD profiles |
| Chemical oceanography | |
| Phosphate | Quantity: number of samples = 550 Description: o-phosphate measurements from water bottle samples |
| Total - N | Quantity: number of samples = 550 Description: ToxN measurements from water bottle samples |
| Ammonia | Quantity: number of samples = 550 Description: Ammonia measurements from water bottle samples |
| Silicate | Quantity: number of samples = 550 Description: Silicate measurements from water bottle samples |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of samples = 200 Description: Direct chlorophyll measurements from discrete depths for CTD calibration |
| Phytoplankton | Quantity: number of samples = 80 Description: 10 m, integrated depth, hose samples for phytoplankton abundance |