Cruise inventory

FRV Clupea 0506C Part 1

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0506C Part 1
Cruise period2006-04-04 — 2006-04-12
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnInverness, United Kingdom
PurposeResearch
ObjectivesObjectives

1. To collect biota samples for TBT analysis using whelk pots at the Peterhead dredged material disposal site.
2. To undertake underwater television (UWT), grab and RoxAnn surveys at the Peterhead dredged material disposal site to assess the condition of the seabed, identify the predominant benthic epifauna species, and the distribution of man-made debris.
3. To undertake Agassiz, UWT, grab and RoxAnn surveys at two potential sea disposal sites off Whitehills.
4. To undertake Agassiz, grab, RoxAnn and UWT surveys at potential Aberdeen offshore windfarm site.
5. To undertake sediment sampling and where possible UWT surveys off Invergordon and at the Sutors sea disposal site.
6. To undertake Agassiz, grab, RoxAnn and UWT surveys at dredged material disposal sites around Orkney, a maximum of five sites to be investigated.
7. To undertake grab, RoxAnn and UWT surveys at EMEC renewables test centre off Orkney (two sites).

Narrative

Departure from Fraserburgh Harbour on the 4 April was delayed by 24 hours due to poor weather. The following morning passage was made to Peterhead disposal site. On arrival at the disposal site, three UWT transects were successfully completed. The deployment of the Agassiz trawl failed due to stoney ground in and around the disposal site. Ten buckie pots were deployed. Buckie pots were located to the north, within and to the south of the disposal. The local SFPA Office and the Peterhead Port Authority were notified of their deployment for a maximum period of 24 hours and their perimeter coordinates. Six grab sediment sample stations were attempted before passage was made for Peterhead Harbour. The following morning a Sholkowitz core was successfully deployed while berthed at Peterhead Harbour. After requesting access from the harbourmaster, a second attempt was made within the entrance basin of the harbour.
Chief scientistPeter Hayes (Fisheries Research Services Aberdeen Marine Laboratory)
ProjectAEO2n
Coordinating bodyFRS
Cruise reportFRV Clupea 0506C Part 1 cruise report 0506c.pdf — access key 'C' (0.03 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificOrkney, Shetland and North East Coast of Scotland
Measurements 
Contamination 
Trace metalsQuantity: number of samples = 24
Description: Grab samples analysed for tributyl tin.
Other contaminant measurementsQuantity: number of samples = 24
Description: Grab samples analysed for tributyl tin.
Other contaminant measurementsQuantity: number of samples = 12
Description: Grab samples to assess the extent of elevated PAH concentrations.
Biology and fisheries 
ZoobenthosQuantity: number of hauls = 6
Description: Agassiz trawls.
Geology and geophysics 
GrabQuantity: number of samples = 55
Core - soft bottom
Bottom photographyDescription: Underwater television transects