Source: https://tendernation.io/opportunities/01a13cc5-c4e9-7256-a194-4ac9a031815c/evidence-review-on-the-sensitivity-of-saltmarsh-to-nutrients awarded GB negotiated without publication procedure Suitable for SMEs # Evidence review on the sensitivity of saltmarsh to nutrients [Natural England](https://tendernation.io/buyers/natural-england) Estimated value £10,000 to £20,000 Published 20 Oct 2022 Deadline Closed 11 Nov 2022 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The aim of this evidence review is to collate the evidence on the response of saltmarsh to changing nutrient concentrations in estuarine ecosystems and further our understanding on how these relationships are affected by other environmental and ecological factors. There is evidence to suggest that saltmarsh habitats are sensitive to nutrient enrichment. These habitats provide many ecosystem services and are either designated feature, sub-feature or supporting habitat in most estuarine and coastal MPAs. One of the main pressures causing the decline of these key habitats is nutrient enrichment, usually though smothering by opportunistic macroalgae, or via changes in the root structure of the saltmarsh itself. Eutrophication has also been known to impact saltmarsh indirectly through increase in dominance/productivity of upper species such as Sea Couch, creating species-poor monocultures of grass species. In order to manage MPAs, and give appropriate advice, it is important for Natural England to understand the nutrient and water quality conditions that will lead to the favourable condition of saltmarsh habitats. This will enable conservation targets to be ecologically relevant and applied at the appropriate scale. Additional information: Quotations and proposals for completing the work should be submitted as detailed in the Request for Quotation Document. Questions on the process or regarding the project may be submitted via email by the 4th November, and the closing date for submissions to is 12 noon Friday 11th November. Please consider Natural England's example terms and conditions before submitting a quote. As this is a request for competitive quotes, the value of the contract will not be disclosed, procurement will be managed by Natural England in line with our Financial Scheme of Delegation section E [gov.uk](https://www.gov.uk/government/publications/natural-england-financial-schedule-of-delegation/natural-england-financial-scheme-of-delegation#part-e-procurement) Read full description ## CPV classification Research services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/abbd92df-e0e0-47f7-bfc1-7b153dbfc4d9) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Natural England: past awards and live tenders](https://tendernation.io/buyers/natural-england) [Sector More Research & development tenders](https://tendernation.io/sectors/research-development) ## More tenders like this [Research and development consultancy services – ATU wishes to establish a Panel of National Contact Point Experts across EU Member States to build capacity to incorporate EU Results-Based Payments Schemes in Public or Private Support Schemes. · Atlantic Technological University · 438 days left · 31 Dec 2027](https://tendernation.io/opportunities/01a156a9-ccf1-7050-b440-6554b4a1426f/ireland-austria-slovenia-research-and-development-consultancy-services-atu) [Research services – Evaluatie van de implementatie van de proeftuin Pioniersscholen · Vlaamse Overheid · 21 days left · 9 Nov 2026](https://tendernation.io/opportunities/01a156a9-cecf-7255-bee1-542f502ed088/belgium-research-services-evaluatie-van-de-implementatie-van-de-proeftuin-pi) [Research services – KPN/28/2026 „Charakterystyka biogeochemiczna gleb i roślin wybranych torfowisk subalpejskich ze szczególnym uwzględnieniem torfowiska u źródeł Úpy na Równi pod Śnieżką” · Karkonoski Park Narodowy z siedzibą w Jeleniej Górze · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-97ae-7315-8e1a-e686bca1e724/poland-research-services-kpn282026-charakterystyka-biogeochemiczna-gleb-i) [Research and development services and related consultancy services – Evaluation of Five Pilot Projects Testing Exemptions from Provisions of the Local Government Act, the Property Tax Act, the General Practitioner Regulations, and Other Regulatory Frameworks · Ministry of Local Government and Regional Development · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a156a9-a35e-73b3-8bf4-7d33c32cf58b/norway-research-and-development-services-and-related-consultancy-services-ev) [Research and development services and related consultancy services – Zabezpečenie trvalých a analytických činností pre oblasť dopravy · Ministerstvo dopravy Slovenskej republiky · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a156a9-ce90-72fd-b25d-99b3ee2e8b4b/slovakia-research-and-development-services-and-related-consultancy-services) [Development consultancy services – Accompagnement à la stratégie d'attractivité économique du territoire de GrandSoissons Agglomération (02) · GrandSoissons Agglomération · 44 days left · 2 Dec 2026](https://tendernation.io/opportunities/01a156aa-1b92-70f5-96fc-71a2756e9dc1/france-development-consultancy-services-accompagnement-a-la-strategie-dattr)