Vessel Services – Request for Quotation

Vessel Services – Request for Quotation

Cefas require a suitable vessel to carry out a 2-day survey of the newly created Lyme Bay dredge disposal site.

RFQ for vessel services to support a sediment sampling survey – Devon

Contract summary



  • Survey vessels – 34513550
  • Marine survey services – 71354500
  • Surveying services – 71355000

Location of contract


Value of contract


Procurement reference


Published date

23 July 2021

Closing date

30 July 2021

Closing time


Contract start date

1 September 2021

Contract end date

30 September 2021

Contract type

Service contract

Procedure type

Open (non-OJEU)

Contract is suitable for SMEs?


Contract is suitable for VCSEs?




Objective 1 (2 days)
The commissioning of a new dredged material disposal site within Lyme Bay has resulted in the need to conduct a baseline survey of the benthic habitats within and in the vicinity of the disposal site boundaries (Figure 2.).

Objective 2 (2 days)
The deployment of BRUVS within Lyme Bay, is also proposed to take place during the charter, within a suitable location identified within the area highlighted in Figure 2.

Requirement: Objective 1 – Sediment Sampling
Cefas require a suitable vessel to carry out a 2-day survey of the newly created Lyme Bay dredge disposal site, the vessels must be capable of carrying a minimum of 3 Cefas staff and deploying suitable equipment to support the survey requirements. Grab samples using the vessel-supplied grab (0.1 m2 mini Hamon grab and 0.1 m2 Day grab) will be collected for benthic fauna, contaminants, and particle size analysis. The benthic fauna will be processed (including the addition of 10 % formaldehyde) during the survey. The ability to freeze (-20oC) the sediment retained for contaminants particle size analysis will also be required.

Requirement: Objective 2 – The deployment of Mid-water and benthic BRUVS
In addition to the above requirements (Objective 1) the vessel should also be capable of deploying and recovering a set of mid-water water BRUVS (Figure 1a and b.). The BRUVS are made from carbon fibre and deployed in a string with each rig 50m apart. The rigs can be deployed tethered to the vessel or left to drift with the vessel standing by to recover after ~1 hour. The main aim of this objective is for Cefas personnel to be trained by an experienced PhD student (non-Cefas) in the setting up, deployment and recovery of the equipment.


More information




How to apply


Follow the instructions given in the description or the more information section.


About the buyer


Contact name

Chloe Halifax


Pakefield Road
NR33 0HT