FRV Clupea 0901C
Cruise summary report
|Ship name (ship code)||FRV Clupea (74CU)|
|Cruise period||2001-07-06 — 2001-07-20|
|Port of departure||Fraserburgh, United Kingdom|
|Port of return||Fraserburgh, United Kingdom|
|Objectives||1. To undertake plankton tows for sea lice naupllii and copepodid stages in Loch Torridon.
2. To conduct CTD and water sampling surveys in the Loch Torridon area.
3. To collect sedimetn samples in Loch Duich for studies of nitrogen cycling in sea loch sediments.
4. To collect sediment samples in Loch Duich for studies of ammonia-oxidising bacteria at fish farms.
5. To recover hydrographic moorings from Loch Torridon and adjacent coastal waters.
|Chief scientist||Ian M Davies (Fisheries Research Services Aberdeen Marine Laboratory), Phil A Gillibrand (Fisheries Research Services Aberdeen Marine Laboratory)|
|General||Inner Seas off the West Coast of Scotland|
|Specific||Loch Torridon, North Minch|
|CTD stations||Quantity: number of profiles = 45|
Description: Seabird SBE25 CTD temperature and conductivity profiles (depth profiles)
|Biology and fisheries|
|Zooplankton||Quantity: number of samples = 45|
Description: Zooplankton samples collected by Neuston net and/or sub-surface pump. Cod-end mesh = 95 mirco metres. Samples collected for identification of sea lice nauplii and copepodid stages.
|Geology and geophysics|
|Grab||Quantity: number of samples = 36|
Description: Grab samples collected along transects adjacent to fish farm cages for delta 15N analysis.
|Core - soft bottom||Quantity: number of cores = 12|
Description: Sediment cores collected using a sholhovitz and box corer. Samples processed for delta 15N incubation experiments, sediment microbiology and whole sediment chemistry.
|Core - soft bottom||Quantity: number of samples = 16|
Description: Pore water samples were collected using conventional extraction techniques, diffusion equilibralian thin film gels and diffusion gradient thin samples collected for the determination of diagentic processes and benthic fluxes
|Moorings, landers, buoys|
|Current meters||57° 38' 21" N 5° 56' 30" W — Two Aanderaa RCM-7 meters, deployed at 30 and 95 m in 105m of water, recovered on 17/7/01 after deployment on 5/4/01. Measuring velocity, temperature and conductivity.|
|Current meters||57° 31' 0" N 5° 40' 0" W — Sontek Argonaunt current meter deployed at 3m depth in 28m of water, recovered on 18/7/01 after deployment on 5/4/01. Measured current speed and direction.|
|Sea level (inc. bot. press., inverted echosounder)||57° 34' 59" N 5° 58' 0" W — Aanderaa WLR-5 bottom pressure sensor deployed at RONA. Recovered on 17/7/01 after deployment on 9/4/01. Measured seabed pressure and temperature.|
|Sea level (inc. bot. press., inverted echosounder)||57° 43' 59" N 5° 47' 59" W — Aanderaa WLR-5 bottom pressure sensor deployed near Gairloch. Recoverded on 18/7/01 after deployment on 9/4/01. Measured seabed pressure and temperature.|