We all have a responsibility to save the ‘King of Fish’

The publication of new Environment Agency byelaws banning the killing of salmon in the North East drift and coastal nets was very welcome news earlier this year and brought to a close a campaign by fisheries organisations that lasted some 30 years.

Scotland banned drift netting in 1962 and closed down its coastal nets in 2016, so most UK salmon are now able to reach their rivers of birth unhindered by home-water netting. It was a tremendous way to begin the International Year of the Salmon. However, the same is not true of salmon feeding off the West Coast of Greenland, an area where many of the UK’s multi-sea-winter fish go to fatten up. 

Getting the quotas right

The North Atlantic Salmon Conservation Organisation (NASCO) was originally established more than 30 years ago to set quotas for Greenland and the Faroe Islands, who between them caught nearly 4,000 tonnes of salmon at the height of their respective commercial fishing industries (Greenland in the mid 1970s and the Faroes early 1980s).  The Faroe Islands have not fished for salmon since 2000, although they reserve the right to do so if the International Council for the Exploration of the Seas (ICES) ever report again that there is enough of a surplus of fish in the North Atlantic to exploit.

Greenland is much more complicated. For many years, NASCO gave the Greenlanders a subsistence quota of around 20 tonnes of salmon – fish that could be caught and either sold in the local open-air markets or kept for food by the fishermen.  Commercial fishing was not allowed, and export was banned.  Private funds were even given from around the North Atlantic countries with recreational fishing to the Greenlanders to help them re-equip and target different species.

However, monitoring and enforcement of salmon fishing by the Greenland Government was only really tightened some five years ago, when it became clear that the actual salmon catch was veering towards 100 tonnes a year.  To be fair, it is a thankless task trying to oversee any coastal activity in Greenland, as the West Coast communities are so disparate – there is no road connection between them, with travel limited to those with access to either boat or plane.  However, when Government officials started to phone round the fishing community and ask for catch statistics, alarm bells were rung.

The current situation

In 2015, Greenland accepted a quota of 45 tonnes agreed at NASCO.  Unfortunately, some people with little knowledge of the background ridiculed NASCO for the size of the quota, when in realistic terms, it was actually halving the amount of fish that was now known to have been caught in previous years.  Coupled to the new quota was a new management and regulatory system adopted by the Greenland Government which put much greater emphasis on monitoring and reporting.  In 2018, the quota was reduced to 30 tonnes.

The bad news is that Greenland has just reported a catch of 40 tonnes for 2018!  However, rather than a return to the bad days, at least the government has a handle on the fishery now and, if it abides by the NASCO agreement, the 10-tonne excess will be taken off the quota for this season, which is comforting news for our MSW (Multi Sea Winter) fish.

What this means closer to home...

All this regulation and government support at Greenland and the Faroe Islands means that UK governments have an extra responsibility to protect salmon stocks at home.  Good for Scotland and England in taking decisive action over coastal netting, but we still have serious issues to address – open-net salmon farming, agricultural impact on water quality, habitat degradation, water abstraction, barriers to migration, predation – and for that we need a political commitment throughout the UK which is sadly lacking at the moment.

I have some sympathy for Greenlanders who generally have a far better grasp of what ‘sustainable exploitation’ means than we ever have – they still derive much of their protein from natural resources and realise how important it is to manage those stocks effectively.  So when an angler lands a salmon in the UK and has to return it to the water because of byelaws or fishery rules, rather than curse the regulators, spare a thought for the Greenlanders and Faroese and their sacrifice in the name of conservation.

Better still, understand that, as Sir David Attenborough said in our recent video, if we are not to lose the King of Fish for ever, we all have to play our part, in whatever way we can, to help Atlantic salmon through their present crisis. The International Year of the Salmon gives us the opportunity to focus on that very stark warning, and act now!

- Paul Knight, CEO

International Year of the Salmon – Our annual seminar in Wales

Latest figures reveal populations in 21 of the country’s 23 principle salmon rivers to be probably at risk or at risk of failing to meet their conservation limits. It was with this thought in mind that the recent S&TC Cymru annual seminar took on an International Year of the Salmon theme, posing the question: “Can we save the Atlantic salmon?”

The overall consensus

Robust presentations citing the latest discoveries in our understanding of salmon population dynamics left delegates in no doubt that a new approach towards habitat management and water quality management is required if we are to maximise spawning success and achieve maximum escapement. Learn more about how S&TC are fighting for healthy habitats here.

Central to achieving good water quality is a science-backed understanding of what the pressures are. Our Riverfly Census provides critical insights into the health of the freshwater environment, but also provides benchmarks against which to assess the success or otherwise of various management interventions.

It is imperative that the Riverfly Census work is continued through its future development and expansion into S&TC’s SmartRivers; where local people will be able to harness the power of species-level invertebrate analysis to pinpoint water quality pressures on their own rivers.

Summary of the day

Proceedings began with a passionate personal account by author and broadcaster Will Millard of the important role salmon, clean rivers and wild fish have played in his life and his desire to see them restored and protected. Our CEO Paul Knight explained the important and role S&TC has played over the past century advocating on behalf of salmon while deputy CEO Nick Measham revealed the manner in which our Riverfly Census can be used to highlight the threats facing the invertebrate population upon which salmon parr depend.

Dr Nigel Milner related the role played by the IFM at NASCO and the need to revise current stock assessment methods to better understand and predict the dynamics of salmon populations. Ian Davidson of NRW continued the stock assessment theme and the
important role played by the Welsh Dee or Dyfrdwy as an index river. The dynamics and fate of small and declining salmon populations were presented by Professor Carlos Garcia de Leaniz of Swansea University who also drew attention to the hitherto underestimated importance of salmon choosing to spawn in different rivers to those in which they originated. The morning session was drawn to a close by author and Gamefisher editor Tom Fort who narrated a fascinating thousand year history of salmon exploitation in British rivers by both nets and rods.

The afternoon session got under way with a comprehensive and encouraging report from Dŵr Cymru Welsh Water’s Environment Programme Manager, Gail Davies, on the company’s
contributions towards conserving the freshwater environment and safeguarding the future of our wild fish. Dr Guy Mawle gave a detailed and valuable account of his own thoughts and observations, posing some challenging questions regarding possible reasons for recent declines in reported salmon numbers from his home river, the Usk. Drawing the theme of the day to a close, Dr Stephen Marsh-Smith OBE of Afonydd Cymru and the Wye and Usk Foundation related his own conclusions drawn from a long and intimate connection with the Wye and offered some valuable suggestions on the steps required if we are to see our salmon stocks return to truly sustainable levels.

Our Fundraising Manager, Guy Edwards, then gave a short but powerful presentation on the value of our financial independence and the need to allow science to lead us in our campaigning efforts. This was followed by S&TC trustee Tony Bostock who provided a very useful summary of the day’s proceedings before thanking the contributors for their valuable contributions.

Seminar coordinator and S&TC’s National Officer for Wales, Richard Garner Williams, wishes to thank all concerned for making the day such a success and looks forward to repeating the exercise in 2020.

Header image credit: Alan Ward at country field media.

For Welsh enquiries contact: wales@salmon-trout.org

For Riverfly Census enquiries contact: lauren@salmon-trout.org

Local myth-busting with the Riverfly Census Conclusions

You’ve probably seen our local Riverfly Census Conclusion reports popping up over the past few weeks. Now we’re tying up the Riverfly Census project, we thought it would be useful to let you know what these reports mean, how they can be used and the exciting things planned as we draw closer to the big Riverfly Census finale in May!

 

A bit of Riverfly Census background

At S&TC we were determined to grasp a true biological picture of our rivers, because detailed, robust baselines of their health are missing.

Without a strong data baseline it is difficult to pinpoint exact pressures or confidently measure improvement. A doctor could not assess your health without scans, tests or a family history - our rivers are no different! Cue the launch of the Riverfly Census, a national research project developed to assess and diagnose the health of a variety of UK rivers.

Aquatic invertebrates were our ‘scan’ of choice because:

They represent a long-term picture, much more informative than a single point water sample, as in nymph form they are exposed to the water sometimes for years.

They are excellent story tellers as every invertebrate species thrives in a specific set of conditions. The types of bugs present and absent from a sample indicate what pressures a river may be experiencing.

Reporting with a purpose

S&TC are a national organisation and we use evidence from local case studies to help instigate policy changes that will benefit UK wild fish populations. But, this is just part of the value- we are making all our Riverfly Census findings available so they can be used to inform local management and drive action.

Each individual river report is based on three years of surveying data. Where possible, we have linked up our findings with other existing literature and data. Using the available information we suggest where local fishing and/or conservation groups can focus their management efforts to achieve the best health outcomes for each of the 12 original Census rivers.

Some of our local reports can be found on the slider below. Alternatively, visit the Riverfly Census page and scroll down to the map.

What's next?

There are still a few local reports to be completed, but our main focus at the moment has been putting together the national Riverfly Census conclusions; an overarching document with evidence based recommendations from our data.

The most powerful aspect of our Riverfly Census was that all the data was collected and analysed independently by professionals. Because of this, the Census is not just more science for the sake of science, it is usable data that can be used to shape environmental policy.

Wild salmon and trout need the best water quality possible to thrive, and if we can get decision makers to take on some of our recommendations, we believe we will get one step closer to achieving the environment they need.

 

The national Riverfly Census report will be launched on the 14th May 2019, so keep an eye on our social channels or sign up to our mailing list to stay in the know.

 

Header image credit: Don Stazicker

For Riverfly Census enquiries contact: lauren@salmon-trout.org

Bakkavor ends use of cleaning products containing chlorine

Bakkavor has stopped using chlorine-based cleaning products at its Alresford Salads salad washing and packaging factory near Alresford.

This means that the chemicals used every night to clean the factory’s equipment will not be able to react to form chloramines which are highly toxic to water life even in extremely low concentrations. The EA and others stopped Bakkavor using chlorine in the daytime salad washing water some years ago.

This is one small victory in our campaign to stop Bakkavor’s salad washing factory at Alresford polluting the headwaters of the River Itchen SAC and SSSI - one of our finest and most highly protected chalkstreams.

However, two huge issues remain:

  • The overnight cleaning products are still being discharged straight into the upper reaches of the Itchen rather than to the sewage system;
  • Pesticides washed off the salad crops are also entering the river via an adjoining watercress bed with no monitoring for these potential lethal pesticides taking place.

The solution to the overnight wash is clear: under the precautionary principle, it must be tankered away or connected to the sewer (as Vitacress does at its nearby plant on the Bourne Rivulet). We find it incredible that industrial effluent should be discharged to any river. Bakkavor will howl about the cost but why should any business, let alone a multi-million pound one, be allowed to dump potentially toxic chemicals in the headwaters of a SAC river.

The pesticides could be an even bigger threat to the Itchen. We notified the EA formally last summer about our discovery of a potential pesticide impact below the discharge point from Alresford Salads and the discharge point from the watercress bed operated by The Watercress Company (TWC). The water used to wash the salads is pumped to this adjoining watercress bed, flows through the cress beds and then discharges into the river.  TWC’s discharge permit has no pesticide monitoring conditions. Thus, it is possible this potentially lethal pesticide brew has been entering the Itchen without any monitoring.

After our intervention, the EA has been carrying out intensive pesticide monitoring of these discharges and is due to report soon. We await the results with interest. Whatever the outcome, it seems clear that pesticides washed off the salads should be monitored and, if present in harmful quantities, removed whatever the cost.

Septic tanks – the UK’s secret sewage problem

Septic tanks are not the most glamorous topic...

...But they are definitely the ‘elephant in the room’ when it comes to protecting our waters from nutrient pollution.

What are septic tanks?

There are a vast array of homes that are not linked up to main sewage treatment works. Where properties are located at least 50 metres from a sewer, septic tanks or package treatment plants are the dominant method of sewage disposal.

Septic tanks are essentially underground tanks. Solids sink to the bottom, forming sludge, and liquid flows into a drainage field, where bacteria take out the bad bits as it soaks into the ground. When used and maintained properly these ‘micro-treatment works’ do their job very well.

Why are septic tanks an issue?

It seems quite obvious, but to keep our wild fish and other water life thriving, they need a sewage-free place to live.

Wastewater contains nitrogen and phosphorus from human waste, food, certain soaps and detergents. If a septic tank is not operating correctly, these nutrients are discharged into watercourses. Excess nutrients are bad news for river systems.

There are a variety of reasons why septic systems fail, but one of the most common is poor maintenance. For example, irregular septic tank emptying may cause solids in the tank to block the soakaway and clog the complete system, increasing the risk of an environmentally damaging incident.

Another big issue is regulation around these micro-treatment works. Despite more rigorous regulations being recently introduced for installation of new septic tanks, the vast quantity of unregistered older systems still remain, with their condition and effectiveness largely a mystery.

Rules around septic tanks are also mostly advisory with a lack of top-level ownership around the issue. The absence of a single authority control has led to frequent installation of systems with inadequate drainfield designs, in unsuitable locations and with no common policy covering their registration or maintenance. Systematic inspections are also lacking, currently only discharges of larger systems with specific permits are routinely monitored for discharge quality.

What you can do

To keep our rivers healthy and bursting with life we need your help to keep them sewage-free.

  • If you are a septic tank owner, be responsible & educated.
  • There is some fantastic information around that will answer any questions you have. One of our favourite resources is http://www.callofnature.info/
  • If you know other family and friends with this kind of system, share your knowledge!
  • Report incidents - If you see a suspicious septic tank discharge to your local river, report it! Send us a photograph and a google maps location and we’ll happily take a look.

A dismal end to 2018 for water companies, their regulators, and the government

The end of 2018 was not pretty for water companies.

Sadly, as always, our environment and waterways bear the brunt. 

 

Thames Water: deliberately ignoring alarms

First up was Thames Water, fined £2 million at Oxford Crown Court on 21st  December for a pollution incident in 2015 in which two Oxfordshire streams were polluted with raw sewage killing many fish.  

The Court heard that Thames Water had disregarded more than 800 high priority alarms in the six weeks prior to the incident, and a further 300 alarms were reportedly not properly investigated, which would have indicated that a key sewage pumping station was about to fail. A further alarm was apparently deliberately deactivated by staff during a nightshift.

Thames Water should hang its head in shame.

Southern Water: ongoing Ofwat investigation

Next up was Southern Water. Following a freedom of information battle with Ofwat, just before Christmas, we finally received confirmation from Ofwat that an investigation into Southern Water, begun in 2017, remains ongoing.

Ofwat has revealed that it is investigating breaches relating to the company’s general duty to provide and maintain its sewerage system to ensure its area is effectually drained, pursuant to section 94 of the Water Industry Act 1991.  Section 94 is, in effect, the core duty for the bigger water companies – the law requires them to collect and treat sewage properly.

Ofwat has confirmed that the investigation covers all of Southern Water’s wastewater treatment works, and that it is looking also at the company’s own reporting of compliance information to Ofwat between 2010 and 2017 in relation to those wastewater treatment sites.  

Obviously, while nothing is yet concluded, the fact that an investigation is now one and half years old and is dealing with such fundamental issues as the company’s general duty to provide and maintain a sewerage system, strongly suggests that Ofwat is not happy.

Ofwat and the Water Conservation Report

But Ofwat itself has hardly been the most aggressive of regulators and it is about time that it found its teeth. If any further evidence was required that Ofwat needs to start biting, it was delivered by the Government’s Water Conservation Report 2018  - slipped out on 19th December as we all left for the Christmas break.

The Water Conservation Report identified that water company leakage still represents about 22% of all treated water put into the supply network and has scarcely reduced since 2014.  In 2018 eight water companies missed their leakage targets. On the demand management side, per capita consumption of water has scarcely changed in recent years and only 50% of households have a metered supply.  

If one delves into Hansard, the record of Parliamentary debates and committees, it is not hard to find references going back over many years to the need to reduce leakage, increase metering and conserve water.

If one were to read watery debates from the 1990s or, indeed, those leading up to the Water Act 2003, the story would be depressingly familiar to the one we are presented with today.  

Moving forward in 2019

Both Government and Ofwat need to pull their respective fingers out – there are positive signs that the new regime at Ofwat might deliver more environmental protection than in the past, but the jury is still out.

We must have decisive action to reduce per capita consumption of water, introduce universal metering of domestic and industrial consumers (with appropriate safety nets for those essential users who need large supplies) and to finally get a grip of water company failure to address leakage.  

On protecting rivers from low flows due to over-abstraction, the Water Act 2014 requires the Government to report to Parliament by the end of May on progress on abstraction reform. One fears it will have very little new to say.

If the Government’s bold claims, to wish to be the first generation to leave the environment in a better condition than we found it, are to mean anything at all, the time for writing more reports, reviews and consultations is over. Action involving aggressive enforcement of the existing law must now follow.

Water companies must improve

However, while we can and should bemoan the chronic lack of firm action by Government, and by Ofwat, and indeed by the Environment Agency in failing to pursue more prosecutions against water companies, the real blame for the damage caused to the water environment by over abstraction, by sewage pollution, and by a general lack of stewardship, falls clearly at the feet of the water companies.  

Those of us in the NGO sector who have been ‘around the block’ have attended so many meetings with water company representatives, all so wonderfully reassuring, promising to sort out the problems. But it is easy to forget that it is now thirty years since water privatisation.

The ongoing failure of the water companies to bring their environmental performance up to a reasonable standard over three decades is a national shame.

 

- Words by Guy Linley-Adams, S&TC's Lawyer

Using data to protect wild fish: River Coquet hydropower

River Coquet Hydropower

With the feed-in-tariffs for hydropower ending in March after little activity over the past couple of years, the beginning of 2019 has seen a flurry of applications for new hydro schemes.

For us, this has once again highlighted the importance of our Riverfly Census data to provide evidence, not just anecdote, on the state of our rivers.  

We recently used data from the Census in our response to a hydropower application on the river Coquet.

On this important salmon river, the Census results, which are collected at a higher resolution and frequency than the Environment Agency’s own data, indicate some phosphate, sediment and pesticide pressures already impacting the reach in question.

This, coupled with the Coquet salmon currently classified as ‘probably at risk’ and seatrout ‘at risk,’ surely means we should take a precautionary approach to such developments?

The recent closure of the north east drift nets will be a very important step to improving salmon stocks in this area, but this is by no means a silver bullet.

We must use every opportunity to remove in-river barriers to migration, both upstream and downstream, such as the weir mentioned in this application, as well as improving water quality and salmon habitat too.

The power of the Riverfly Census has led us to develop SMARTRivers – taking the Riverfly Census out to local rivers by training volunteers to sample and analyse aquatic invertebrates to species level, to provide the evidence to drive change. For more information on how you can get involved click here.

2018: A year in review

What have we achieved this year?

2018 has been our biggest year yet! So where has your support got us, and what have we done for wild fish protection and conservation? Our CEO's Year In Review summaries our influence, accomplishments and campaigns over the past 12 months. 

With the help of our many donors, members and grant-making Trusts, S&TC has had a successful year in influencing a number of wins for wild salmon and trout. The below is a quick summary; however you can download the full review here.

Accomplishments:

  • Salmon farming - we were the major catalyst in achieving TWO game-changing Scottish inquiries into salmon farming impacts on wild fish and environment:
    • ECCLR – they conducted the first Inquiry and their Report included the one-liner: the status quo is no longer an option.
    • REC - their Autumn Report was highly critical of the way salmon farming is operated and regulated and presented 65 recommendations for improvement, including most of our main asks.
  • NASCO - we work internationally on wild salmon issues through NASCO, our CEO being co-chair of the accredited NGOs which gives us unprecedented influence. Amongst other issues, we have used NASCO to influence netting closures and pressurise Scottish salmon farming.
  • Riverfly Census - 3 years and 20 rivers later, we have professional and actionable evidence of various pollutants impacting river health, nationally and locally.
    • Census results have shown up the alarmingly poor condition of some of our most high-profile rivers, particularly from sediment and phosphate, and we co-authored a peer-reviewed paper showing the lethal impact of those two stressors on mayflies.
    • The full Riverfly Census report is currently being compiled but has already influenced new invertebrate species and abundance targets for chalkstreams. The Test and Itchen report is now available.
  • Living Rivers - we've been sampling daily phosphate and chemical levels on local chalkstreams, highlighting and challenging some appalling ecological conditions, specifically:
    • Using a case study on the Upper Itchen at Alresford Salad’s washing plant to fight for the elimination of toxic chemical discharges into SAC rivers.
  • Other S&TC policy work - There has been plenty of other work this year, including but definitely not limited to:
    • Water abstraction reform.
    • Agricultural post-Brexit policy.
    • Our seat on the EA’s Water Leaders’ Group, which covers all environmental water issues.
    • Our seat on the National Drought Group, where we have represented wild fisheries since 2011.

Next Steps:

  • Salmon farming - drive the REC Committee’s recommendations through Government so that they are acted upon rather than ignored.  In particular:
    • Scottish Government to adopt legal responsibility to protect wild salmon and sea trout from the impacts of salmon farming.
    • An independent agency to regulate salmon farming against sea lice trigger levels that protect wild fish, with the sanction of forced harvest on persistent offenders.
    • A moratorium on establishing/expanding farms in sensitive locations and movement of existing farms away from migration routes.
    • Incentives for companies to move into closed containment production.
  • Netting - we are concerned that sea trout will still be exploited in some of the north east coastal nets and we will be seeking more action in 2019 to protect sea trout.
  • SMARTrivers - Our new project, based on training and utilising high resolution citizen science to understand and improve wild fish water quality.
  • Living Rivers - We will continue to fight for the protection of the Upper Itchen and have major chemical sampling plans for other rivers in 2019.
  • Much more - stay tuned for our 2019 plans, in January.

Latest data on River Test and River Itchen reveals concerning issues

Test and Itchen are no exception to national decline in water quality and flylife

The S&TC Riverfly Census continues to reveal worrying declines in flylife and water quality in rivers across England and Wales, as confirmed by our latest report on the River Test and the River Itchen (the king and queen of our precious chalkstreams).

In our comprehensive Test and Itchen report published today, the results from three years of independent species-level invertebrate data reveal:

  • Significant loss of mayfly species.
  • Low gammarus counts.
  • Worrying impacts from sediment, phosphate and, occasionally, pesticides.

Mayfly and gammarus declines

Comparing historic data with our findings has revealed that both the Test and Itchen have four less mayfly species, on average, than their historical averages. This decline in mayfly species richness, and the worrying low numbers of gammarus, are powerful indicators of an ecosystem in distress.

The flylife in both rivers is far poorer than we would expect for chalkstreams in good condition  - let alone these SSSI (Sites of special scientific Interest) and SAC (Special Area of Conservation) rivers.

Mayfly species have declined from an average of 12 to 8 (33.3%) on the Itchen and 11 to 7 (36.36%) on the Test, over the period from the late 1970s/early 1980s to today.

The current levels are also well below local targets of 10 mayfly species - targets agreed with the Environment Agency for what would be expected in a healthy river.

Gammarus, a key staple of the aquatic food chain, is also well below our 500-target level at most sites (historically, gammarus counts went into the thousands).

Excess sediment and phosphorus

Our report reveals the extent that chemical, phosphorus and sediment pollution are impacting the invertebrate community in both the Test & Itchen.

It is clear that a reduction of sediment and phosphate inputs (from point and diffuse sources, including septic tanks, agriculture, sewage treatment works, industry, etc) are essential to conserve these rivers.

Importance of the S&TC Riverfly Census

Lauren Mattingley, S&TC’s Science Officer, explains why data like this is so important:

“We frequently hear stories and concerns about missing flylife and lack of fish compared to the 'good old days', but anecdotal evidence has little weight in environmental decision making.

The Riverfly Census was launched as a ‘myth-busting’ tool to collect much needed high-resolution, scientifically robust data about the real state of water quality in our rivers.

Switching from opinion to fact-based evidence gives us real power to drive national and local improvements to our waterways.

“The Test & Itchen report is a fantastic example of why we need to break away from data ‘silos’.

The Riverfly Census data tells a story on its own, but when linked up with additional local invertebrate and phosphorus monitoring data, we can really start to grasp the pressures on these rivers.

The environment is complex, and stressors rarely work in isolation, so why would we conduct monitoring this way?”

Turning science into action

The Census is no mere academic exercise. We are using this powerful data to inform and build effective strategies which improve wild fish habitat:

  • We are acting on the Census results to improve water quality in these rivers, working with stakeholders in the area.
  • We are tackling known sources of pollution; such as the Bakkavor salad washing plant on the Itchen headwaters, and intensive watercress farming on both the Test and the Itchen.
  • Our findings on the Itchen impelled us to challenge the EA under the Environmental Damage Regulations. We are awaiting the EA’s response.
  • To share the Riverfly Census results from the Test and Itchen and drive further improvements to these rivers, we will be holding a workshop on 12th February 2019. A key aim of the workshop will be to highlight knowledge gaps and develop next steps with a range of stakeholders, regulators and scientists. Please contact Lauren (lauren@salmon-trout.org) if you or your organisation would like to book a place at the workshop.

River Itchen damage below Alresford Salads: Autumn 2018 photos

New photos show damage in River Itchen below Bakkavor's Alresford Salads factory.

At S&TC we have long been campaigning to stop Bakkavor discharging their salad wash effluent into the headwaters of the River Itchen.

The Itchen is a designated Special Area of Conservation (SAC), and we fear that the chemicals in their discharge are harming the environment.

Read more: Chlorine in our conservation areas?

Read more: Toxic chemicals keep coming

Our latest autumn samples of invertebrates and algal growth, from a site just downstream of the Bakkavor factory, reinforces our concern.

Our autumn river bed photos, and samples of invertebrates and algae, taken on 5 October 2018, immediately downstream of the Bakkavor salad washing factory (Alresford Salads), show the Itchen headwaters remain heavily polluted. This is in stark contrast to the condition of the Upper Test.

 

Excess algal slime demonstrates damage

The bed of the Itchen headwater stream at our sample site is covered in algal “slime”.

This is a short distance downstream from Bakkavor’s salad washing factory’s discharge point.

River Itchen photos

The bed of the stream should show clear, un-sedimented gravel like this photograph of the Test headwaters at Polhampton taken last Autumn:

Dr Nick Everall of Aquascience has analysed this sinister algal growth. This is what he reports:

“There was extensive area coverage (over 90%) of the river bed area with the thick biological growth or slime which upon microscopic examination was, aside to a bit of chalk and sediment adhesion, entirely composed of filamentous and attached algal and lesser fungal growth…

The dominant and major composition of the biological growth covering metres of the bed of the River Itchen below Alresford Salads was, often filamentous, algae (diatoms, blue-greens and green algae) with some fungal component…

It was typical of organic and nutrient enriched benthic ‘slime’ or sewage fungus’ (Fjerdingstad, 1964 and Hellawell, 1986).”

Read Dr Nick Everall's October 2018 report here

Invertebrates (or lack thereof)

The invertebrate sample from the Itchen headwaters was devoid of insects sensitive to pollution. There were no mayflies or gammarus.

The associated biometric measurements indicate an impact from pesticides, siltation, nutrient enrichment (phosphates) and organic pollution.

In short, the lack of invertebrates signifies the water quality is extremely poor in general – and exceptionally so for the headwaters of a Special Area of Conservation chalkstream.

Read Dr Nick Everall's October 2018 report here

The Upper Test sample taken in autumn 2017 was dramatically healthier. There were over 1800 gammarus and two species of mayfly, for starters. The biometrics indicated no impact from siltation, phosphates or organic pollution.

 

What are we doing about it?

We were so horrified by the invertebrate sample taken in May 2018 from the same Upper Itchen headwater site that we formally notified the Environment Agency (EA) to investigate the problem.

Read more: Alresford Salads EDR

That investigation is continuing; meanwhile we will share our latest findings with the EA, whom we are also fighting to stop Bakkavor discharging its salad wash effluent into the headwaters of the Itchen.

Read more: Will Alresford Salads end use of their chorine-free cleaning products?

In response, the EA is seeking a variation of Bakkavor’s discharge consent, but progress is painfully slow.

Overall, our data is providing strong evidence for the EA to insist Bakkavor stops pumping its effluent into the river. This is the only environmentally acceptable outcome.

As Nick Measham, Deputy Chief Exectuive of S&TC, summarises:

"It is a nonsense that biocides are discharged into any watercourse, let alone the headwaters of an SAC.

Such chemicals can be highly toxic to aquatic life, negatively impacting the health and abundance of wild salmon and trout in our waters - as well as all the other creatures that live there and together sustain freshwater's delicate ecology.

Has the EA got the courage to say no, or will industry triumph over one of Britain’s natural wonders?"