Tag Archives: Conservation

Citizen Science – Fish Survey 2024

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Report from the Third Fish Survey conducted by the RDA and the Institute of Fisheries Management July 2024  by Steve Colcough

Introduction by Julia Jones

For the past three years, 2022, 2023 and 2024  the RDA has supported annual fish surveys in partnership with the Institute of Fisheries Management, represented by Steve Colclough. From the RDA side, enthusiasm and leadership come from Richard Verrill who initiated this project and has reported on it both here and in the Deben Magazine.

The 2024 survey also involved Suffolk Wildlife Trust as a new sampling site was located in the area of saltmarsh adjacent to Martlesham Wilds. Writing for the Deben Magazine Richard described the method of operating in this new site — setting a winged Fyke net across the creek at low tide, as well as using the seine netting techniques deployed at Bawdsey and elsewhere. 

Juvenile fish come in with the tide to feed on the saltmarshes and then are caught on their way out, counted and released back into the river. The quantities of fish caught at Martlesham in the 2024 survey were very impressive and a good indicator of the health of that area of the river — as well as a reminder of the importance of the Deben saltmarshes.  

Over the 2022, 2023 and 2024 numbers of juvenile fish have been good and the project is attracting interest from scientists in other areas. 

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Confessions of a Serial Litter-Picker: The RDA Autumn Talk, Nov 5th 2024

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By Julia Jones

I’ll be honest – I had no idea that a talk about litter was going to be so interesting and emotive. Not only the emotions of disgust, incredulity and anger — which thinking about litter evokes all too easily – but engagement, humour, surprise, compassion, admiration. Yet that’s how I felt listening to Jason Alexander’s presentation to the RDA on Bonfire Night. A good moment to be sweeping up some old preconceptions and seeing them burn away cold night air, giving out warmth and inspiration as they go.

This is the story of a one-man campaign and a movement we can all join, on our own or working with others.

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Citizen Science – Fish Survey 2023

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Report from the Second Fish Survey conducted by the RDA and the Institute of Fisheries Management September 2023  

by Steve Colcough

A small group of RDA volunteers, led by Richard Verrill, have been working together with Steve Colcough from the Institute of Fisheries Management and others to collect up to date information about fish stocks in the Deben. RDA Journal readers will remember Richard’s report from August 2022 – Deben Fish Survey 2022 

Now, following a second sampling session from higher up the river, Steve Colcough has produced a formal report available here — River Deben fish surveys 2023. Continue reading →

Deben Fish Survey August 2022

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By Richard Verrill

It is well recognised that estuaries provide essential breeding grounds and nurseries for many fish species. They also provide corridors for migratory species. Estuaries provide a very dynamic environment with constant changes in tide, temperature and salinity. Intertidal areas provide particularly important refuge and feeding grounds for small fish.The variety of the shoreline in the Deben provides an abundance of different nursery environments with sandy beaches, shingle beaches, mudflats and salt marsh. Continue reading →

Our birds on the Deben – what can we do to help them? Focus on the redshank

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By Sally Westwood

In 2021, Suffolk Coast & Heath Area of Natural Beauty (AONB) selected the Redshank1 as their flagship bird as a part of their Nature Recovery Plan2. Commendably, they called for volunteers to help with the project of protecting the Redshank including their nesting habitat. Redshanks are present on the River Deben but I have only ever seen one feeding along the river’s edge, on my river walk. I thought it might be interesting for the reader to have some insight on the background of Suffolk Coast & Heath AONB’s Nature Recovery intervention and the plight not only of the Redshank, but as we might have suspected, a considerable number of species of birds, that visit the Deben. It is not a comfortable read, however, the good news is, steps are being taken to stop the decline in species.

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UK Heritage Harbour Initiative

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Introduction by Julia Jones (RDA Journal Editor)

I have always particularly enjoyed the placards of detailed boat information that have been on display at Maritime Woodbridge but it was working with the Waldringfield History Group on their book Waldringfield: a Suffolk Village by the River Deben (2020) that made me more acutely aware how much history of many different types, is encapsulated in our river, particularly in its businesses, its boats, its people and their skills and interests.

Sometimes, the evidence around us has become so familiar that we hardly see it. An article this month in Topmasts: the Journal for the Society for Nautical Research snr.org.uk/topmast/ (p10) opened my eyes to the history of Lady Alice Kenlis, a Deben wreck about which I was previously completely ignorant.

 I’m therefore particularly pleased to introduce this article from Brian Corbett who is leading the UK Heritage Harbour initiative and makes no secret of his belief that the River Deben should be part of this. The RDA Journal, however, prints this article for information and interest – not to lobby! 

I have also taken the opportunity of adding a few photos of the River Deben’s older inhabitants to Brian’s interesting contribution.

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Saltmarsh Research on the River Deben

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by Richard Steward and Robin Whittle

Introduction

Estuary saltmarshes are an ecologically unique tidal area of marshland which is regularly flooded with salt or brackish water and then drained by the lowering tide. The River Deben has the highest amount of saltmarsh of any Suffolk River.  It extends 18km from Felixstowe Ferry up to Melton. The width of saltmarsh between the river channel and bank varies from nothing to over 600m between Hemley and Waldringfield.  Salt-tolerant plants stabilise incoming sediment creating a marsh environment that supports the aquatic food chain, provides essential coastal flood protection and improves carbon storage.

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