Source: https://tendernation.io/opportunities/01a13bf8-a6ed-703e-8dbc-09bf16fb5791/humber-estuary-sea-lamprey-monitoring-and-tagging-survey awarded GB open procedure Suitable for SMEs # Humber Estuary sea lamprey monitoring and tagging survey [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value £20,343 Published 18 Nov 2016 Deadline Closed 16 Sept 2016 ## 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. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Defra procuring on behalf of Natural England: This project will assess the migration of adult sea lamprey Petromyzon marinus in the tidal Yorkshire Ouse. By determining when sea lamprey migrate through the tidal Ouse and which environmental factors may be impacting their migration we can gain a better understanding of these species and the potential pressures that they face. This study should determine how many sea lampreys are migrating through the catchment, how far they migrate and temporality of the migration. The aim of this study is to add to the evidence gained in 2015 and increase our understanding of potential impacts of the annual DO sag on sea lamprey migration through the Humber Estuary. We hope to investigate whether sea lamprey migration occurs at the same time as the DO sag and if these two activities occur at the same time, is the DO sag causing a barrier to sea lamprey migration. This study will only monitor the timing and movements of sea lamprey. Another study will be carried our concurrently by the Environment Agency (EA) who will monitor the DO levels. The data collected from this study will be compared to and analysed against the DO data collected by the EA which should give us an indication of the impact of the DO sag on sea lamprey migration. This data will also be used to compare with the results and outputs from the study carried out in 2015. Read full description ## CPV classification Marine research services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/6b5e72df-adca-11e6-9901-0019b9f3037b) 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. 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