Marine Life & Conservation
New River Thames ‘source to sea’ pollution data finds majority of litter found is single-use
Over 60% of litter would disappear from Thames basin if we moved away from single-use items say the Marine Conservation Society and Thames21
A series of river cleans along the Thames and its tributaries has revealed that more than 80% of litter found in the Thames, and 78% on its tributaries, was made up of single-use items such as metal drink cans, food packaging and plastic drinks bottles.
The events were run by the Marine Conservation Society (MCS) and waterways charity Thames21 as part of the Waitrose & Partners/MCS beach and river clean programme. The analysis also gives a snapshot of the source to sea pathway for litter and the way it breaks down over time.
Thames21 ran 20 river clean events towards the end of 2017 and into 2018 at Thames tributaries and tidal Thames sites. The evidence was compared to MCS beach litter data from four beach cleans at Southend-on-Sea.Depending on which part of the Thames the cleans-up took place, different items predominated. Metal drinks bottles were commonly found on the tributaries, but fewer were found on the Thames foreshore. Wet wipes were found in huge numbers during the clean-ups on the Thames foreshore, whilst glass and unrecognisable plastic litter dominated at the estuary cleans.The concentration of litter items found per 100m rose as the Thames made its way towards the sea, due to the increased opportunity for humans to influence the ecosystem.
16 events took place at Thames tributaries including the river Lea in Hackney, the Bear Brook in Aylesbury, and the river Brent in Neasden. On the tributaries, volunteers found that 78% of the items they picked up were single-use with an average of 219 pieces of rubbish collected for every 100m surveyed. The four events on the Thames Foreshore found that 86% of the litter items recorded were single-use with a higher concentration of items found – an average of 1,402 per every 100m surveyed.
At Southend-on-Sea, where the Thames meets the sea, just under half of all items found (48%) were recognisably single use, but the concentration of small pieces of litter increased further, with a huge 2,520 items per every 100m surveyed.
Of those 2,520 items, 560 (28%) were unrecognisable, small plastic items. Lauren Eyles, MCS Beachwatch Manager, says that the proportion of single use plastic was harder to measure at estuary and coastal sites as the plastic has already broken down: “We find much more unidentified, tiny plastic at these sites because the plastic has been floating around for some time. However, they may well have once been single-use. Beach cleaners are far more likely to find microplastics these days than larger identifiable items.”
Both MCS and Thames21 are calling for a Deposit Return Scheme which has been shown to cut not just plastic pollution but from other materials too such as metal and glass.
‘These findings clearly show that we urgently need a Deposit Return Scheme, as well as alternatives to single-use,’ said Debbie Leach, CEO of Thames21. ‘Eighty per cent of the waste we found on the Thames foreshore, and nearly the same amount on the tributaries would disappear if we moved away from single-use items; and one way to do this is through a DRS.’
The urgent problem of wet wipes, which often contain plastic, was also revealed in the report – making up 77 per cent of all items removed on the tidal Thames foreshore, and an average of 1,000 at the 4 cleans that took place.
Lauren Eyles says the data from these cleans will give the charity a more complete picture of the source to sea journey of litter: “Rivers are being harmed by a variety of different pollutants, including large amounts of plastic. Eighty per cent of ocean litter comes from land, channelled there by our rivers.”
Tor Harris, Head of CSR, Health & Agriculture for Waitrose & Partners, said: “The marine and river environment is important to all of us which is why we we’re delighted to have partnered with MCS for their ‘Source to Sea’ programme. The evidence will help us, and others, focus on reducing pollution from materials such as plastics. Our customers are very engaged in the issue of plastic pollution, so initiatives like this help both customers and Partners get actively involved in addressing the problem and finding alternatives to single-use plastic.”
Visit www.mcsuk.org to find out more.
Marine Life & Conservation
Leading UK-based shark conservation charity, the Shark Trust, is delighted to announce tour operator Diverse Travel as a Corporate Patron
Corporate Patrons provide a valuable boost to the work of The Shark Trust. The Trust team works globally to safeguard the future of sharks, and their close cousins, the skates and rays, engaging with a global network of scientists, policymakers, conservation professionals, businesses and supporters to further shark conservation.
Specialist tour operator Diverse Travel has operated since 2014 and is committed to offering its guests high quality, sustainable scuba diving holidays worldwide. Working together with the Shark Trust will enable both organisations to widen engagement and encourage divers and snorkellers to actively get involved in shark conservation.
“Sharks are truly at the heart of every diver and at Diverse Travel, we absolutely share that passion. There is nothing like seeing a shark in the wild – it’s a moment that stays with you forever!” says Holly Bredin, Sales & Marketing Manager, Diverse Travel.
“We’re delighted to celebrate our 10th year of business by becoming a Corporate Patron of the Shark Trust. This is an exciting partnership for Diverse and our guests. We will be donating on behalf of every person who books a holiday with us to contribute towards their vital shark conservation initiatives around the world. We will also be working together with the Trust to inspire divers, snorkellers and other travellers to take an active role – at home and abroad – in citizen science projects and other activities.”
Paul Cox, CEO of The Shark Trust, said:
“It’s an exciting partnership and we’re thrilled to be working with Diverse Travel to enable more divers and travellers to get involved with sharks and shark conservation. Sharks face considerable conservation challenges but, through collaboration and collective action, we can secure a brighter future for sharks and their ocean home. This new partnership takes us one more valuable step towards that goal.”
For more information about the Shark Trust visit their website here.
For more about Diverse Travel click here.
Marine Life & Conservation
Shark Trust Asks Divers to help with Shark Sightings this Global Citizen Science Month
Whether you are stuck for ideas of what to do with the kids or are off on the dive trip of your dreams. You can get involved in Citizen Science Month and help the Shark Trust by providing vital data about sharks are rays both close to home and further afield.
In addition to reporting the sharks and rays you see on your dives, the eggcases you find on the beach, the Shark Trust is looking for some specific data from divers who are asked to report any Oceanic Whitetip and Basking Sharks.
Oceanic Whitetip Sharks
The Shark Trust are looking specifically for Oceanic Whitetip Shark sightings over the coming weeks and months. So, if you are diving anywhere in the world, please report your sightings via the website or app.
Website: https://recording.sharktrust.org/
App: Search The Shark Trust in your app store
The Oceanic Whitetip. Known for their incredibly long dorsal and pectoral fins, this species was once the most abundant oceanic-pelagic species of shark on the planet.
Large and stocky, they are grey or brown above, and white below and famous for their huge rounded first dorsal fin and paddle-like pectoral fins. The fins also highly prized within the shark fin trade. Whilst they are mostly solitary, Oceanic Whitetips do occasionally hunt in groups.
An inquisitive species, they were easy prey for fisheries. Combined with their low reproductive rate, they were inevitably at high risk of population depletion. And declines of up to 99% have been reported in certain sea areas. They are listed as Critically Endangered on the IUCN Redlist (2019).
Conservation efforts to discourage further declines include listing on CITES Appendix II and CMS Appendix I. They’re also the only species prohibited from take by all the Tuna RFMOs (Regional Fisheries Management Organisations). However, these measures do not mean that Oceanic Whitetips are not still caught – whether targeted or as bycatch – in some parts of the world. With populations declining at such a high rate, effective implementation of management measures is essential to ensure that the species can recover.
If you are lucky enough to get an image of an Oceanic Whitetip and you record your sighting on the Shark Trust app or website YOU CAN WIN! All images submitted with sightings, that also give consent to use in conservation messaging, will be in with a chance to win an Oceanic Whitetip T-shirt and mug. The competition will run until the end of “Shark Month” in July – so keep those sightings (and images) coming in.
Basking Sharks
Basking Shark (Cetorhinus maximus) season is upon us, and the Shark Trust is asking everyone to keep an eye out for these majestic giants over the summer months. If you see any, you can record your sighting to the Basking Shark Sightings database.
Each year, these mighty fish return to British waters to feed on plankton. You may see one, (or a few if you’re really lucky) from around April-October. They can be seen feeding at the surface of the water, where they look like they’re basking in the sun. Thus, their name!
Sighting hotspots around the British Isles include southwest England, Isle of Man, north coast of Ireland, and western Scotland. The Sea of the Hebrides is the most prolific sightings area in Scotland, but they have been spotted all around the coast and have even ventured into some of the sea lochs. The Shark Trust has received thousands of sightings since the Basking Shark project began, but more data is needed to truly understand what is going on with population numbers and distribution. You can help by recording your sightings this summer.
Great Eggcase Hunt
The Shark Trust has an Easter Egg Hunt with a difference for you to try. Take part in the Great Eggcase Hunt and get involved with a big citizen science project that helps shark, ray and skate conservation. And it’s an enjoyable activity for all the family.
The Shark Trust also want snorkellers and divers to record their underwater eggcase findings. Underwater records help pinpoint exactly where sharks and skates are laying their eggs and can help link to beach records. Learning the depth and substrate that they lay on also helps better understand the species.
Find out more: https://www.sharktrust.org/great-eggcase-hunt
Whether you are diving, snorkelling or exploring on the beach you can take part in Citizen Science Month and get actively involved in shark and ray conservation. Find out more: www.sharktrust.org
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