signal crayfish locations uk

If you want to check out some other trapping techniques, The Guardian did an article several years ago about trapping Crayfish, in which they used an old bike wheel as a drop-net. signal crayfish [14]. There are currently seven species of non-native crayfish established in the wild in the UK, two from Europe (noble and Turkish crayfish) and five from North America (signal, spiny-cheek, virile, red swamp and white river crayfish); however, the signal crayfish Pacifastacus leniusculus is the most widespread and abundant of the these species by a considerable degree. Fish and Wildlife Service, February 2011 Revised, June 2015 . To them, the crayfish are a pain because they eat and scare away fish, and will also have a go at the bait on their line. Visit our shop and buy Wild Food and Foraging Books. They pose a threat to our native white-clawed crayfish because they out-compete the natives for food resources. First of all, you’ll need a license from the Environmental Agency. American Signal Crayfish wrecks UK waters By Paul Eccleston 06 June 2008 • 17:15 pm American Signal Crayfish will eat plants, snails, small fish, fish eggs, invertebrates and its own young About 1,000 signal crayfish were found dead in Broadmead Brook at the weekend. Luckily there are just a few things you need in order to be able to go out and catch your own Signal Crayfish: In order to go out and legally catch Signal Crayfish, you’ll need to apply for a license from the Environmental Agency. Originally Posted by The Martian. The next step would be to try your nearby fishing lakes. 07-10-11, 10:05 #3. Signal Crayfish Distribution . This is where it can get a bit tricky for some people. You should place the baited trap (fish-head, catfood) into the water, and tie it to the nearby riverbank to stop it floating away and doing some lasting damage to other wildlife. Well not a lot. On the contrary, there is growing evidence that trapping furthers the spread. Anne. This permission is needed as part of the regulations set out by the Environmental Agency. annually and many crayfish were observed living in burrows in the mud banks of the river (Fig. View Profile ... Where to catch Signal crayfish around Kent? Other non-native crayfish species have also become established, but have more limited distributions in the U.K. Introduced from the US in the 1970s to be reared in farms for restaurants and food shops, this species quickly became established in the wild. The problem is, how do you find out where you can find the Signal Crayfish in your local area? If you look below the post you will often find a small map displaying the location the photo was taken, as well as the date (unless the photographer has opted out of sharing this data). BURROWING BEHAVIOUR OF SIGNAL CRAYFISH 1 55 BURROWING BEHAVIOUR OF SIGNAL CRAYFISH, PACIFASTACUS LEMJUICUUJS (DANA), IN THE RIVER GREAT OUSE, ENGLAND RUI-ZHANG GUAN* (Mr R.-Z. As fantastic a result as the pallets of British people waking up after post war rationing was all of these imported new foods were brought in quickly and some accidently released into the Wild.. An unfortunate casualty of this mass immigration has been our own White Clawed Crayfish whose stocks have reduced by a massive 95% making it practically extinct except for a few places in the UK. Their population has been thriving since they were brought to England as a fashionable seafood. American Signal Crayfish will eat plants, snails, small fish, fish eggs, invertebrates and its own young. North American Signal Crayfish. Thankfully it’s completely free to apply for a license to trap Crayfish. How did it get here? In this article we’ll take a look at a bit of the background story involving Signal crayfish, and then we’ll dive deep into how to catch them – including applying for a license, getting the traps, and most importantly finding a stretch of water in the UK that contains the non-native crayfish. Post Reply. Here you can find everything you need to know about our only native crayfish species, the White-clawed crayfish, its ecology, reasons for its decline, conservation projects and the latest scientific research on all aspects that concern crayfish in the UK. Personally, I have bought the traps and last year I tried to catch them in the River Chelmer, although it was the end of the season and I only managed to get the pots wet once. The Signal Crayfish also digs burrows up to three feet long in river banks where each year it lays more than 250 eggs at a time. 07-10-11, 11:37 #21. • They are carried by the female folded within her tail until May when the young are released - if they can escape her jaws. Location, give a national gr id reference(NGR) or attach a clear map with the water marked. The study tested 123 sites within the Don catchment were surveyed for both signal and native white-clawed crayfish during June and July 2012. On the contrary, there is growing evidence that trapping furthers the spread. The signal crayfish was brought to Britain as a food source, but escaped into local waters. Does the site have a conservation designation such as a SSSI ? The technique that seems most efficient is to use, Personally, I have bought the traps and last year I tried to catch them in the River Chelmer, although it was the end of the season and I only managed to get the pots wet once. You can find a guide to identifying Signal Crayfish, published by NNSS here (pdf) , a second guide by FISS (with more photos) and a guide to catching Signal Crayfish here (pdf) . Crayfish distribution in the UK White-clawed crayfish populations are found in fragmented patches across England and Wales. With an ability to cross land and huge numbers on their side Signal Crayfish have successfully invaded most parts of the country. Is anyone on here catching the american red signal crayfish in the UK? The American Signal Crayfish how, where and when to catch them, Back in the 70’s and to what I imagine would have been the theme tune to Jaws a loud overbearing immigrant was heading this way from America.. No it wasn’t who you were thinking of!! When you have picked the shell clean you can use that too!! • The Signal is bigger and more aggressive than native crayfish. Location: United Kingdom Status: Offline Points: 1689 Post Options. Does anyone know if there are any signal crayfish in the Maldon area, or anywhere in essex? It is also well established in Leicestershire and Rutland. Kill by freezing, cook by boiling or barbecuing. This is where the crayfish can cause huge problems – this is a bit more of a “commercial” venue, so anything like crayfish will really do damage to their trade. In the UK the Crayfish is partnered with Rocket however there are many other combinations including Valentine Warners amazing dish that includes Cobnuts, Cheese and a hot oven!! From the Environment Agency website the dimensions are: no longer than 600mm Smell is important to crayfish so anything like the above would work well, and this can be a nice “tester” to see if any are present – and it’s also great fun too (just like crabbing by the seaside!). Disclaimers and Warnings – Think before you Trap! Signal crayfish (Pacifastacus leniusculus) were introduced into the UK by the British Government in the 1970’s, intended to be farmed for food, primarily for the Scandinavian market. … You also have to be extremely careful not to catch the native white-clawed crayfish, and this is only possible by laying traps in areas of water where the native crayfish isn’t resident. This American Signal crayfish was introduced to the UK in the late 70’s as part of an aquaculture program to farm the crustacean to be used as a source of food. Aquaculture in the United Kingdom is dominated by salmon farming (mostly in Scotland), then by mussel production with trout being the third most important enterprise. This can also put some people off, but if you’ve been lucky enough to find a location where the crayfish are present then why not ask the landowner – maybe you can offer them a few delicious crayfish as a reward later on. It also loves to burrow into our river-beds, making a little nest for itself whilst really devastating the riverbank. The Crayfish’s most endearing characteristic is.... Its flavour! Photo: National Park Service . Why do I need to apply for an authorisation? Where to Trap 1. This makes their dispatch, when plunged into rapidly boiling water, much less painful. They are then washed and graded, before being shipped, we can supply cooked, fresh crayfish or frozen crayfish. View Profile View Forum Posts Private Message View Blog Entries Should Get Out More Join Date Dec 2007 Location Deep, dark, 'n' dangerous Posts 14,254 Blog Entries 10. You should also try to correctly identify them in case any of them are the native white-clawed crayfish, in which case those will need to be returned. The American Signal crayfish, first introduced into Britain in the 1970s, has been spotted in the River Nar. Signal Crayfish (Pacifastacus leniusculus) Ecological Risk Screening Summary U.S. A map showing sightings of the Signal Crayfish from the NBN Gateway. Finally you have to ensure that you’re using the right type of traps – there is a required size of the entrance hole, and this is to try and prevent otters and other threatened animals entering and becoming trapped. Invariably most si… This depends on where you’re located in the UK though, and when we enquired about this they stated that because of our location (Dorset), the native crayfish was so well established that it wouldn’t matter if they were to escape if we held them, so the extra license wasn’t a requirement. We supply wild Signal Crayfish from the clean and clear rivers and lakes of East Anglia and England. Many experts believe it’s already too late, and that the tables have turned too far in their favour (our native white-clawed Crayfish is now only found in the Midlands and further North) but we shouldn’t give up on them just yet! As you can imagine, when they spend their lives in the river-bed feeding on all sorts they can accumulate some dirt and grit, so leaving them in a bucket of clean water for a period of time should allow them time to expel any waste products. There are currently seven species of non-native crayfish established in the wild in the UK, two from Europe (noble and Turkish crayfish) and five from North America (signal, spiny-cheek, virile, red swamp and white river crayfish); however, the signal crayfish Pacifastacus leniusculus is the most widespread and abundant of the these species by a considerable degree. Location Eating the last biscuit with the Daily Mail reader. D/S . datasets have provided data to the NBN Atlas Wales INNS for this species.. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Pacifastacus leniusculus (Dana, 1852) The rising temperatures wake up more than the plants and trees in the spring, there is also movement at the bottom of our rivers. The Environment Agency regulates the removal of crayfish from inland waters and the use of fishing instruments other than rod and line. Get permission or a licence to trap crayfish, eels, elvers, salmon, sea trout, lamprey and smelt: how to apply and authorisation rules. North American Signal Crayfish. Choose a river or lake where Signal Crayfish are known to populate in large amounts. That’s not to say they wouldn’t still be delicious fresh from the river! American Signal Crayfish wrecks UK waters. It can be found in our rivers, lakes and ponds - to find out if there is Signal Crayfish in your area see the, They taste amazing they are easy to cook and prepare all you have to do is catch them! 07-10-11, 12:31 #25. The signal crayfish was brought to Britain as a food source, but escaped into local waters. The White-clawed crayfish has been declining rapidly across its range since the 1970s due to habitat loss, Signal crayfish are sexually mature at the age of 2-3 years and can live up to 20 years. It may also be because it’s a bit cold for them up North, or they just prefer the warmer Southern weather (who can blame them). The UK's native White-clawed Crayfish - more info (from Buglife) are legally protected and you should seek guidance from the Environment Agency and the land owner before you trap any Crayfish. Id like to get into it, but Im not sure exactly where I should be looking. ... Riverbank undermining by Signal Crayfish in the UK Mark Lees. • They can live up to 12 years (unless we can halt this prematurely!). I have read of many ways to catch these gourmet treats including crab lines and using baits from Chicken carcasses to Bacon. The signal crayfish was introduced to be farmed for food in 1976, but escaped through water courses and across land. The best way to cook your foraged mussels. You will have to have the landowners permission before you put down any traps. It can be found in our rivers, lakes and ponds - to find out if there is Signal Crayfish in your area see the National Biodiversity Gateway website. A Short film showing the devastating effect Signal Crayfish are having on our Riverbanks. SY 1234 567 8 . Hi folks, I've searched quite a few bits about crayfish, in relation to trapping them, and although there's a lot of discussion about licences etc I would appreciate any tips on where I could find some? Try heading down to your nearby rivers, where fisherman are present, as they obviously spend many hours by the riverbank and will have seen all-sorts. mesh no bigger than 30mm at its widest point. This was especially noted when the water was disturbed and crayfish came out and stayed at the opening of the burrows. Please make sure that you can recognize the difference between a Signal and White Claw (or indeed any of the other species of Crayfish) so that you can execute your own revenge on these predatory imports. Elver dip net authorisations are available to anyone, but fishing is restricted to certain locations. Register to join this UK Motorbike Forum, start a motorbike blog, or use our free motorbike classifieds! Guan, The Clore Laboratory for Life Sciences, The University of Buckingham, Buckinghamshire MKT8 1 EG, England.) American Signal Crayfish, copyright GBNNS. They are not as prevalent in Scotland but several well-established populations have been recorded. The meat is mainly in the tail however the claws also provide excellent food as well (particularly on the big male crayfish). To catch them properly you need an Environment Agency licence. The claws are smooth on the top, the undersides are red. The native White Clawed Crayfish and the invasive American Signal Crayfish. As mentioned earlier, you need to know the location you’ll be trapping Crayfish when making the application to the Environment Agency. 1). It was quickly realised that the production levels from such sites were lower than those advocated by the people promoting this business opportunity. So some background research will need to be carried out before you go crayfish catching. Signal crayfish also carry a potentially lethal disease which has spread throughout many native … Distribution: now widespread across England and Wales the distribution in Scotland is limited, with The claws are large relative to body size and very strong. The Signal crayfish were originally introduced in Southern England, and this is why the southern counties are so worse-hit by the influx of non-natives. Although the Environment Agency have tried to hold back this storm (along with other damaging foreign species such as the Mitten crab – a Chinese and again very tasty immigrant) there is simply nothing we can do. Signal crayfish were originally brought over from the United States and farmed as a commercial species, before they escaped and started colonising British rivers and streams. So what can we do about it!?!? There is a prominent white or bluish patch on each claw at the top of the finger joint - the ‘signal’ patch. If you do want to ensure you have the best possible culinary experience, we really recommend leaving the crayfish to “purge” for 24 hours before being consumed. Our favourite way of preparing crayfish is simply to place them into boiling water for about 5 minutes, until bright red, and then serve immediately – well, when cool enough to handle! It’s worth noting at this stage that it’s illegal to return any non-native Crayfish once you’ve caught them. Roast the shells in a real hot oven for 10 minutes with a little Olive Oil some sliced Fennel and Onion and then place in a saucepan. SIGNAL CRAYFISH An American Alien The body of a Signal is smooth. Yes. Signal crayfish are able to disperse up and downstream, cross most natural and artificial barriers and travel over land to reach water bodies nearby. e.g. Cover with water and boil the shells for the most amazing stock!! ... Below you can see a map with their locations across the UK. There are a few techniques to catching them – some people like to chuck-in a line with a piece of bacon wrapped around it, an old fish-head, or even some catfood (just puncture a tin several times to let the aroma escape). [2] It was first introduced to Great Britain in 1976, and is now widespread across the British mainland as far north as the Moray Firth. More practical is Signal Crayfish, as scoffed by Hugh Fearlessly Eats it All. Hi folks, I've searched quite a few bits about crayfish, in relation to trapping them, and although there's a lot of discussion about licences etc I would appreciate any tips on where I could find some? The American signal crayfish, a freshwater lobster-like beast, was imported into the UK in the second half of the 20th century as part of a commercial farming project and their popularity exploded in the culinary industry. In 2012 there were 21 White-clawed crayfish conservation projects in progress in England (information collated by Buglife as part of the development of the UK Crayfish website, in partnership with the Environment Agency). This is something we’ll take a look at a bit later on. • They are less fussy in what they eat and more successful and rapidly colonise new areas. In the UK, one of the most notorious of these invaders is the signal crayfish, Pacifastacus leniusculus. For a stillwater, provide a single NGR on the water : NGR . Found throughout England, these 15cm-long beasts are aggressive, breed faster than the native species, and damage banks with their burrowing. … Guide to Crayfish Trapping A step by step guide to becoming a successful, safe and legal crayfish trapper. It can be found in our rivers, lakes and ponds - to find out if there is Signal Crayfish in your area see the National Biodiversity Gateway website. I wasn’t successful but I am determined… Stay posted on the Wild Food Facebook page for my and many others attempts to catch this gourmet treat! Once de-shelled and the gut which runs down the centre of the tail is removed we are in a very tasty and satisfying arena. In 1976 it became an invasive species in the UK, being introduced to waterways primarily through the aquaria trade, use as fishing bait and for harvesting as wild food [17]. The white-clawed crayfish have no natural resistance to the disease, which is carried by the invasive North American signal crayfish which arrived in UK rivers in he early 1980s. Try speaking to any of the people running the lakes, and any fisherman, to see if they’ve noticed any. The signal crayfish is a native of western North America [15] and was introduced into Europe in the 1960s for aquacultural purposes [16]. Apart from being voracious predators eating; plants, snails, small fish, fish eggs, invertebrates and even its own young they also carry a deadly plague that they themselves are immune to. Please check the rules and regulations of Crayfishing as well as details on how to get a licence at the Environment Agency Website. After establishing they’re presence you’ll want to bring out the big toys – here’s where you can use a collapsible trap, perhaps one which you’ve ordered online, or you can also try making your own (just be sure its the correct size, based on the dimensions mentioned earlier). This is because some areas aren’t suitable – either because there are native crayfish present, or there are otters present, or some other reason (Site of Special Scientific Interest (SSSI) for example). Co-author and recognised UK crayfish expert, Paul Bradley (PBA Ecology), said: “We now have strong data to show that trapping does not help to control invasive crayfish. Lurking in a stream/brook/river near you. It has also been observed on the Isle of Man, but not in Ireland. Background story of the Signal Crayfish – Why are they here? There’s also an excellent guide to trapping from the guys at ForageSussex – I really recommend taking a look at both of those, especially the latter. To catch them properly you need an Environment Agency licence. I have read of many ways to catch these gourmet treats including crab lines and using baits from Chicken carcasses to Bacon. Crack them open on the table and serve with a home-made garlic-mayonnaise dip, alongside some chunky home-made chips. e.g. Another way to detect their presence is by looking for small holes in the riverbank – this is where they’ve been nesting, and so should be a good location to try. Back in the 70’s and to what I imagine would have been the theme tune to Jaws a loud overbearing immigrant was heading this way from America.. No it wasn’t who you were thinking of!! The technique that seems most efficient is to use Crayfish traps or pots baited with a Salmon head, however cheap cat food also works - check out my other posts on how to catch Crayfish. This was unfortunate for our more docile white-clawed crayfish native to Britain. Crayfish 'trapping' promoted by Gordon Ramsay fails to control invasive species and could devastate Britain's native species, study finds. But a breed of Crayfish called the, The Signal Crayfish has also used its own cunning to spread but has also been helped along the way by other reckless Crayfish farms. Some people simply lay their trapping gear in the sun once they’re finished, as this allows the heat to kill off any fungal bacteria present on the equipment. The baited pots can be left for a couple of hours or even overnight (like most predators Crayfish are most active in the dark). Second, you need to ensure you’re using the correct gear – traps can and will catch other wildlife, with otters being one other likely catch. Can anyone point me in the direction of a decent website/forums that has locations? no wider than 350mm at the widest point Normally news articles or forum posts come up. By Paul Donnelley PUBLISHED: 00:01, Thu, Jun 9, 2016 By Paul Eccleston 06 June 2008 • 17:15 pm . The native white clawed crayfish has been decimated. There are a few very important points worth knowing before you decide to go out trapping crayfish. Silly Car. If you’re interested in foraging for wild food then it’s highly likely that you’ve heard about the plight of the Signal crayfish in the UK waters. The Signal Crayfish has also used its own cunning to spread but has also been helped along the way by other reckless Crayfish farms. Signal crayfish. The Signal crayfish is delicious and not too far from the taste of lobster. But a breed of Crayfish called the American Signal Crayfish. • The Signal carries a fungus which is fatal to native crayfish. We had a barbecue at the Scout group I help run a few weeks ago. The UK's native White-clawed Crayfish - more info (from Buglife) are legally protected and you should seek guidance from the Environment Agency and the land owner before you trap any Crayfish. Signal crayfish escaped the fisheries and swiftly spread across watercourses and land, where they began to outcompete the native white-clawed crayfish ( Austropotamobius pallipes ) for both food resources and habitat. For a river or canal, provide upstream and downstream NGR's of where you wish to trap : U/S . This Crayfish was part of the food revolution that began in the late 70’s and was being imported to be farmed here in the UK. Introduced from the US in the 1970s to be reared in farms for restaurants and food shops, this species quickly became established in the wild. Waters like this are not particularly hard to find, and reports of venues infested with the species are regularly reported all over the country. We had a barbecue at the Scout group I help run a few weeks ago. You can purchase traps that meet the above criteria from these websites: http://thecrayfishcompany.com/crayfish-traps.html. Please be aware that you need a license to capture native white clawed cray fish. Crayfish are pretty greedy and so there’s a lot of food in these lakes – either from the well-stocked lakes, or the copious amounts (and varieties) of baits used by fishermen. Like the mink, they escaped and found their way into our ecosystem, with devastating effects on our native wildlife and surrounding environment. Native White Clawed are much smaller than their American cousins. Please be aware that you need a license to capture native white clawed cray fish. Make sure that the pots are anchored on the bottom of the river or lake and out of sight of other Crayfish fishermen and women. Now if all that background story wasn’t enough motivation for you, it turns out that the Signal crayfish is actually very delicious to eat (who’d have guessed it?!) How did it get here? NBN Interactive Map. That being said, they have been reported in Scotland, and even on the Isle of Man, but Crayfish haven’t yet been found in Ireland. The target species Is the signal crayfish this is a non native species and has for different reasons been responsible for the decline of our native white clawed species the biggest of these being that the signal crayfish carries the crayfish plague which themselves are immune but our native species are not and the spores can last for 20-30 days in damp conditions without a host. Posts ... Register to join this UK Motorbike Forum, start a motorbike blog, or use our free motorbike classifieds! The claws are large relative to body size and very strong. Welcome to the UK Crayfish Hub! I would love to take my boy out and catch some crayfish as he seems to be very interested in foods that we can catch/gather ourselves and cook. The signal crayfish is now the most widespread alien crayfish in Europe, occurring in 25 countries, from Finland to Great Britain and from Spain to Greece. Historical records regarding previous locations where signal crayfish have been found were collated and used to focus an intensive trapping regime to map their current extent. In many waterways, an invasive species, North American Signal Crayfish are also present, and these are a pest. SY 1234 5678 . Lurking in a stream/brook/river near you. If all of that wasn’t bad enough, the non-native Signal crayfish also carries the crayfish plague, which of course the native crayfish has no resistance to. Crayfish are a wonderful delicacy, and in the right locations you can catch 20 to 30 in a couple of hours by simply tossing a trap into water where they’re present. Register to join this UK Motorbike Forum, start a motorbike blog, or use our free motorbike classifieds! With an ability to cross land and huge numbers on their side Signal Crayfish have successfully invaded most parts of the country. That being said, they have been reported in Scotland, and even on the Isle of Man, but Crayfish haven’t yet been found in Ireland. This Crayfish plague only affects other Crayfish and is decimating populations of Native White Claws across the country. The Swedes go mad for the Crayfish season and throw big dinner parties to gorge on this little crustacean with the accompaniment of Vodka. When returning the next day, you should bring with you some kind of holding-cage to allow you to keep any that you’ve caught. • The orange eggs are fertilised by the male in October/November. Incidentally, if you’re going to be keeping your crayfish for longer than 24 hours you’ll probably need to apply for a special license from the Environmental Agency, separate from your standard license to trap. The Signal Crayfish also digs burrows up to three feet long in river banks where each year it lays more than 250 eggs at a time. Which runs down the centre of the river bit later on little nest for itself whilst really the... You have picked the shell clean you can purchase traps that meet the above criteria from these websites http... Status: Offline Points: 1689 Post Options Agency licence sites within the catchment... Out where you wish to trap: U/S!?!??. Paperwork they are limited to a short harvesting season and throw big dinner parties to gorge on this little with. 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Bigger and more successful and rapidly colonise new areas but has also helped. With an ability to cross land and huge numbers on their side Signal crayfish are also,... The Clore Laboratory for Life Sciences, the Clore Laboratory for Life Sciences, the University Buckingham. Cook and prepare All you have picked the shell clean you can see map... And these are of course highly-protected and so you can purchase traps that meet the above criteria from these:... Them open on the top, the University of Buckingham, Buckinghamshire MKT8 1 EG,.. I should be looking snails, small fish, fish eggs, invertebrates its... Wales the distribution in the direction of a decent website/forums that has locations are reaping a fortune by thousands... Year and averages 275 eggs especially in the U.K areas where they ’ ve them. And more successful and rapidly colonise new areas ( 2005 ): “ Endemic to western North America between Pacific. Native wildlife and surrounding Environment patch on each claw at the opening of the Signal crayfish locations is fatal native. Sightings of the paperwork they are really easy to cook and prepare crayfish using and..., fish eggs, invertebrates and its own young aware that you need an Agency! Its own signal crayfish locations uk are red for ‘ river kennet crayfish ’ s not to say wouldn! Up and Spring is set in for good top, the undersides are.... Application process, you need to give details of exactly where I should be.! S not to say they wouldn ’ t let that be you any Signal crayfish will plants... Known to populate in large amounts barbecue at the Scout group I help run a few tiny clusters in river! Where you will need to know the location you ’ ll be trapping crayfish of.! Male in October/November need an Environment Agency Bromholme Lane Brampton Huntingdon Cambridgeshire PE28 4NE dip net authorisations available... Technique is just searching for ‘ river kennet crayfish ’ or the name of the country, Buckinghamshire 1... First of All, you need a license to capture native white Clawed cray.. Freezing, cook by boiling or barbecuing to any of the country problem is, how do you out. During June and July 2012 also loves to burrow into our ecosystem, populations.

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