RV Cefas Endeavour 10A/09
Cruise summary report
|Ship name (ship code)||RV Cefas Endeavour (74E9)|
|Cruise period||2009-06-16 — 2009-06-21|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Hartlepool, United Kingdom|
1. To survey dredged material disposal sites at Inner Gabbard, Tees, Souter Point, North Tyne and Rame Head (Plymouth) for benthos, trace metal and organic contaminants in sediments, using grabbing and coring. At a number of sites, various acoustic methods will also be used.
2. To sample representative NMMP locations using grabbing, coring, and trawl methods. Samples will be later analysed for trace metal and organic contaminants, litter and epi-, macro- and meio- fauna.
3. To sample sediments and water at various stations in the Eastern and Western Channel regions for later analysis of macro- and meio- fauna, metals, chlorophyll a, porosity, organic contaminants, nutrients and salinity. This survey forms part of the NMMP redesign program (CSEMP).
At 05:00 on 16/06/09, Cefas Endeavour sailed from Lowestoft and proceeded south to The Inner Thames where the Temporal CSEMP station 466 was sampled for biology and contaminants (Aim2). Cefas Endeavour then transited east to the Inner Gabbard where a multibeam and sidescan (100% coverage) survey was conducted. During this survey, disposal operations were underway resulting in fresh disposals being observed on the seabed and in the water column. A Hamon grab survey for biology and particle size analysis (PSA) was then conducted (Aim1).
On Completion of this survey Cefas Endeavour proceeded north (17/06/09) to survey CSEMP 376 and 386 temporal stations in the Inner and Outer Wash (Aim 2). From here, Cefas Endeavour transited to the Tees dredge disposal site. On arrival at this site, a multibeam survey (100% coverage) was conducted. Preliminary results from this survey revealed recent disposal activity within the centre of the disposal site. On completion of this acoustic survey, a Day grab survey, which consisted of samples taken for biological, sediment particle size and contaminant analysis, was carried out (Aim 1).
Cefas Endeavour then continued north collecting biological, sediment particle size and contaminant samples from the temporal CSEMP station 295 (Aim 2). Cefas Endeavour then proceeded to the Souter Point dredge disposal site where a survey of the dredge disposal site and sediment cap used to contain TBT contaminated sediment was under taken (Aim 1). Several surveys were carried out, these include a Day grab survey for biology, sediment particle size and contaminants, Nioz Core and SPI surveys were undertaken to investigate the thickness of the cap and a multibeam and sidescan survey to investigate the bathymetry and sediment typology (no preliminary results available). During this survey, the SPI camera failed to operate on several deployments resulting in the remaining stations being dropped. Attempts to fix the SPI camera were unsuccessful.
Cefas Endeavour then transited east (20/6/09) to sample the Off Tyne CSEMP temporal station 245 (Aim 2) before continuing north to carry out Day grab surveys at the historic Tyne sewage sludge disposal site and North Tyne dredge disposal site (Aim 1). On completion of these surveys, Cefas Endeavour docked in Hartlepool to change scientific staff (21/06/09).
|Chief scientist||Paul Whormersley (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)|
|Cruise report||(0.84 MB)|
|Track charts||(00 MB) (00 MB)|