Pagham Harbour SSSI - Unit 001 specialist lagoon survey

Complete

Value

£49,999

Classifications

  • Survey services

Tags

  • tender

Submission Deadline

1 year ago

Published

1 year ago

Description

To apply please respond to the attached Invitation to Quote and associated documents. Email your response to [email protected]. Tenders to be received no later than 17:00 on 11th August 2023. Clarification questions deadline is 3rd August 2023. 

The request is for quotations to conduct saline lagoon survey of Pagham Harbour SSSI lagoon.

The survey will follow sampling plans from previous surveys of the site to identify state and changes in state for an ecological component of biodiversity, and identify whether changes are due to natural change or as a result of anthropogenic activities,   

The key objectives for the survey are to: 

1. Provide an assessment of the direction of ecological change by the integration of previously obtained relevant data.  

2. Repeat the previously used survey design to ensure the data are statistically robust enough to enable the collection of compatible future data and comparison with previous surveys of the site permitting quantitative long-term trend analysis.  

3. Identify anthropogenic influences, impacting on the ability of the sub-feature to achieve Favourable Condition, and where possible quantify them. 

4. Ensure that newly collected data is compatible (analytically) with historical survey data, and will make reference to and utilise such historical data. 

Data sampling and analysis will adhere to the standards set out in the RFQ

Additional information: Proposals are requested to provide information required in the RFQ. The timeline given in the RFQ will be followed to enable the project to be delivered by end of December 2023 or sooner.

Additional contact:
Danielle Barratt
[email protected]

Documents

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  • Contract Agreement

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  • Award Notice

    Details on the tender award and selected suppliers.

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CEFAS24-134 Request for Quotation for a geophysical and bathymetric survey of the Sabellaria Spinulosa reefs in The Wash

The Marine Protected Area (MPA) monitoring programme is funded by the Department for Environment, Food and Rural Affairs (DEFRA) and through this programme, Cefas co-ordinates some of the evidence collection for the monitoring of MPAs in English waters. The Ross Worm Sabellaria spinulosa is a sedentary, epifaunal polychaete worm which builds tubes by consolidating particles of sediment (Limpenny et al, 2010). S. spinulosa is abundant in UK waters, largely existing in solitary form or within small, low-lying aggregations (Hayward and Ryland, 1990). However, under the right environmental conditions they also can establish dense colonies and form biogenic reefs. These biogenic reefs are protected as an Annex I habitat under the EU Habitats Directive (EEC, 1992), and Special Areas of Conservation (SACs) are designated for their protection. Important areas of consistently occurring reef have been found across The Wash where extensive areas of subtidal mixed sediments in the tide-swept approaches provide the right conditions for reefs to form, particularly in deeper waters. These reefs are an important but understudied feature of both The Wash and North Norfolk Coast (WNNC) SAC and Inner Dowsing, Race Bank and North Ridge (IDRBNR) SAC - named as 'The Wash and its approaches' hereafter. Requirement: With the aim of improving our understanding of the extent, distribution, and nature of S. spinulosa biogenic reef (i.e. reefiness) across The Wash and its approaches, Cefas has commissioned this Contract to deliver a geophysical and bathymetric survey of 9 blocks, with varying prioritisation. The primary acquisition will be Side Scan Sonar (SSS), with a desire for Multi Beam Echo Sounder (MBES) bathymetry to be acquired on an opportunistic basis (i.e. concurrent to acquiring SSS data within blocks 1 & 3), and not resulting in 100% coverage of MBES within those blocks. The evidence gathered in this acoustic survey will seek to allow for the identification of Annex I Sabellaria spinulosa reefs (not a part of this contract). This evidence will be used to support conservation advice, condition assessment and management of the WNNC SAC and the IDRBNR SAC, its designated sites and protected features, i.e. Reefs (including S. spinulosa biogenic reef) habitat. This information will inform statutory advice on MPAs and assist in the assessment of both SAC sites' condition. Download the Bidder Pack at https://defra-family.force.com/s/Welcome and search for CEFAS24-134 under opportunities.

CEFAS

Published 3 days ago

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Organisation

Kate Bull

[email protected]

Timeline complete