Fish and Wildlife Service, a bureau in the Department of Interior. Freshwater pearl mussels are an important species in many of Scotland’s rivers but are under severe threat from continued criminal activity. Fish and Wildlife Service has proposed listing an Alabama freshwater mussel as endangered or threatened in response to a petition from environmental groups that claimed the species … Freshwater Mussel Facts page of the Warm Springs National Fish Hatchery. Freshwater pearl mussels Margaritifera margaritifera are abundant in the River South Esk, representing the south-eastern range of the species in Scotland. Freshwater pearl mussel ©Linda Pitkin/2020VISION, The rain-soaked lands of Britain and Northern Ireland are rich in rivers, streams, lakes, ponds, canals and ditches. West Cumbria Rivers Trust. For media enquiries please contact Dr Jeremy Biggs on 01865 595 506 or our Oxford office on 01865 595 505. The latter is associated with fast flowing water with low calcium content. Pond Mud Snails. Our mission is, working with others, to conserve, protect and enhance fish, wildlife, and plants and their habitats for the continuing benefit of the American people Freshwater pearl mussels are filter feeding molluscs that are found in river beds; they can live for over 120 years! Quagga mussels could do untold damage to … This decline has been attributed to the loss of habitat associated with river regulation, eutrophication, and other types of pollution, and possibly through loss of the host fish on which completion of the life cycle depends. The River Thame Catchment Project is working with local landowners to improve the quality of the River Thame and its tributaries. JOIN NOW DONATE . Also rivers that are rocky with some gravel or sand present so that it can burrow. The freshwater pearl mussel is one of UK’s most threatened species – and Scotland holds almost half the global population of the species. People are often more familiar with the Swan Mussel Anodonta cygnea or the Duck Mussel Anodonta anatina, and most will never be fortunate enough to see this rare cousin. When they are ready, they need to drop off in to pristine river habitat where they will use their muscular foot to rasp algae and bacteria from the gravel. By their siphoning actions, mussels filter bacteria, algae, and other small particles, which make them one of the few animals that improve water quality. Freshwater Nerite, Theodoxus fluviatilis Shell taller, thinner and with more even and more numerous whorls. Donate. The freshwater pearl mussel Margaritifera margaritifera (hereafter referred to as ‘pearl mussel’) is a globally threatened species which is classified by the International Union for Conservation of Nature as Endangered in its world range (Mollusc Specialist Group, IUCN 1996). Overlooked Gems: The Benefits of Freshwater Mussels in Wings (Fall 2008): Essays on Invertebrate Conservation, a … Overall mussel density was a better predictor of taxon richness than the density of any individual mussel species. Of the 297 known species, 213 (71.7%) taxa are listed as endangered, threatened, of special concern. Freshwater mussel UK distribution. LIFE + 11 NAT UK 000383: PIP GB. Looking for more information about our work? Training. Otter, water vole and freshwater pearl mussels are fully protected under this legislation, however white clawed crayfish are only protected from taking under this Act. Join the Wildlife Trusts on our exciting adventure to a Wilder Future . Whether natural or…, We need to create Living Landscapes where wildlife habitats are bigger, better managed and more joined-up, to help wild animals and…. Freshwater Pearl Mussel species Accepted Name authority: UKSI Establishment means: Native. Freshwater pearl mussel is a wildlife crime priority, as illegal pearl fishing is decimating populations. Pondweed Leafhopper. Advertisement Anglers, boaters and other water users should remember to Check Clean Dry after leaving the water to help prevent this mussel, and other invasive aquatic species, from spreading via clothing and equipment. We have recently reported estimates of freshwater mussel species diversity of 898 (Graf & Cummings, 2006b; Cummings & Bogan, 2006) and higher (Cummings & Graf, 2005). Mussels of the Ohio River . O'LEARY, D., 2017. New survey techniques, like eDNA (environmental DNA), may provide an easier and more cost effective approach to monitoring. Develop Your Skills. Mussels also serve as a food source to many species of fish, reptiles, birds, and mammals. Classified as a priority species by the UK Biodiversity Steering Group,a national Species Action Plan has been prepared to encourage measures for its survival. They bury or lodge themselves in stable riverbeds of … Primer design . Freshwater pearl mussels; All of these species are protected under the Wildlife and Countryside Act to differing degrees. U.S. 4. The Duck Mussel, Anadonta anatina, is the … If you continue to use the site, we'll assume that you are happy to receive these cookies. FRESHWATER MUSSELS. However, those counts included many Neotropical and Palearctic species that were subsequently synonymized (Simone, 2006; Graf, 2007). The mystery as to why tens of thousands of freshwater mussels are dying may be one step closer to being solved. In the UK, estimates indicate that the species distribution has declined by approximately 30% in the last 100 years but despite this the UK is still thought to support one of the healthiest populations in Europe and therefore UK populations are of high nature conservation value. People are often more familiar with the Swan Mussel Anodonta cygnea or the Duck Mussel Anodonta anatina, and most will never be fortunate enough to see this rare cousin. Freshwater Pearl Mussel If the habitats and location of the site are suitable for freshwater pearl mussel, then a more detailed assessment for the species may be needed. Medicinal leech. Freshwater Mussels. In the United States and Canada, areas home to the most diverse freshwater mussel fauna in the world, there are 297 known freshwater mussel taxa. Freshwater pearl mussels spend their adult lives anchored to the river bed, filtering water through their gills and improving the quality of the water for other species. species in the UK.These are based on tried and tested methods,developed mainly by Scottish Natural Heritage,and represent current best practice. Freshwater Pea Mussel. Figure 1: Native Freshwater Mussel Species Included in ZSL Survey – a) depressed river mussel, b) duck mussel, c) painter’s mussel, and d) swollen river mussel Bivalves play a key role providing vital ecosystems services such as nutrient cycling and water filtration (Vaughn et al., 2008). And the cause could be a novel virus, dubbed “mussel-bola”. Brown and yellow in colour. Freshwater pearl mussels live in clean, fast-flowing rivers across northern England, Shropshire and Devon. In contrast, one of the largest species of freshwater bivalves is the swan mussel, in the family Unionidae; it can grow to a length of 20 cm, and usually lives in lakes or slow rivers. www.naturalresourceswales.gov.uk Page 3 Executive Summary Freshwater pearl mussel is listed as ‘vulnerable’ by the IUCN and included on its Invertebrate Red List1. It has a thin shell and is generally slim when closed. Striped Mayfly. It is a fully protected invertebrate species. We use cookies to ensure that we give you the best experience on our website. Iain Sime, SNH freshwater and wetlands advice manager, said: "Freshwater pearl mussels can live to well over 100 years old, but the species is critically endangered in Europe. The Wildlife Trusts: Protecting Wildlife for the Future. Several of the large freshwater mussels look similar and can be easily confused, particularly with smaller specimens. Native to European rivers and streams, populations are found in the … The shell is wedge shaped, with the umbo (the rounded knob) positioned to one side. The Depressed River Mussel is named after its flattened shape rather than its melancholy nature. Our commitment to Equality, Diversity & Inclusion (EDI), Different types of protected wildlife sites. Oyster Mussel Epioblasma cincinnatiensis Ohio Riffleshell Epioblasma flexuosa Leafshell Epioblasma florentina_aureola Golden Riffleshell Epioblasma florentina_curtisi Curtis Pearlymussel Epioblasma florentina_florentina Yellow Blossom Epioblasma florentina_walkeri Tan Riffleshell Epioblasma haysiana Learn about Endangered Freshwater Mussels in Ohio . The threat is so severe that pearl mussels are now a UK wildlife crime priority. Survey for the freshwater pearl mussel Margaritifera The majority of species of bivalve molluscs live in the sea, but in addition, a number of different families live in freshwater (and in some cases also in brackish water). They have a fascinating life cycle; their larvae attach to the gills of salmonid fish and ‘hitch a ride’ for up to 10 months of the year. Similar Species. They recently joined the giant panda on the International Union for Conservation's (IUCN) species … Surveys and research . Freshwater bivalves are one kind of freshwater molluscs, along with freshwater snails.They are bivalves which live in freshwater, as opposed to saltwater, the main habitat type for bivalves. Scottish freshwater pearl mussels feature in a new book listing the world's 365 'most endangered' species. The Exotic Zebra Mussel . Of the roughly 300 freshwater mussel species in North America, 71% are considered endangered, threatened or of concern, largely because of human degradation of rivers. Depressed River Mussels live in amongst the bottom sediments of river habitats and tend to be better fixed in the substrate than other mussels which makes them harder to survey. Contact us at info@freshwaterhabitats.org.uk. One of the largest of our freshwater bivalves, typically 75mm but up to 120mm in length. Freshwater mussels are native Australian animals and there are well over 40 different species of freshwater mussels that occur in creeks and rivers of eastern Australia. Two-thirds of North American freshwater mussel species are endangered so that is the work I do on a regular basis, it all pertains to species at risk,” Morris said. Native to European rivers and streams, populations are found in the UK with the largest populations in Scotland and the Highlands. Local biota can benefit from the mussels' filtration, excretion, biodeposition and physical presence. Shop. The above is a Swan Mussel ( Anodonta cygnea ) found in lakes whilst below is the Pearl Mussel ( Margaritifer margaritifer) . JOIN NOW DONATE . Abstract. Table 2: Species to be recorded in Part 2 of the FEP, version 1 Priority Species List (1998), version 2 Recorder 3.3 (1998), version 1 … West Cumbria Rivers Trust. The species faces many threats including pollution and dredging. Map generated from NBN Atlas (nbnatlas.org). Let us know you are a real human being who wants to hear about our work for freshwater wildlife. Fairy Shrimp. at an alarming rate Support Freshwater Ecosystems . Species in the two groups vary greatly in size. Freshwater pea mussel. The Depressed River Mussel is a rare, green or brown river bivalve (meaning two-shells). The UK is home to 6 species of freshwater mussel of which two, the depressed river mussel ( Pseudanodonta complanata) and the pearl mussel ( Margaritifera margaritifera), have experienced significant declines during the 20th century. Freshwater Pearl Mussels - The endangered jewel in the crown of Scotland’s rivers . Tadpole shrimp. Checklists containing Freshwater pea mussel. The False Spike, Fusconaia mitchelli (Simpson in Dall, 1895), is a freshwater mussel considered to be endemic to central Texas (Brazos, Colorado, and Guadalupe drainages). Species landing page for Slugs, snails and freshwater mussels. Checklists containing Freshwater Pearl Mussel. FEP Guidance 007: Plant & Animal Species in the Farm Environment Plan (FEP). Freshwater mussels are under threat and are declining, both in New Zealand and worldwide. Methods . It is suggested that this association arises from the ‘keystone’ role that mussels play in many freshwater ecosystems. The U.S. Overview; Gallery; Names; Classification; Records; Literature; Sequences; Data Partners + Online Resources. Exploited since pre-Roman times, pearls harvested from the mussels were commercially traded on a large scale throughout the 19th Century … They will co-occur with the other large mussel species in these habitats but are never found in ponds and lakes where both of the other species can be found. Not only do they consume a great deal of the food supply in the lake, but they also attack native mussel species by sticking to them and robbing them of fresh water and food. Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled groups of organisms in North America, yet species boundaries remain uncertain for many taxa. The majority are classed as river mussels, these need permanent and flowing water to breed and survive so generally found in flowing streams. There are six species of freshwater mussel that are native to the UK, two of which (depressed river mussel Pseudanodonta complanataand pearl mussel Margaritifera margaritifera) have experienced large declines during the 20thcentury (University of Cambridge, 2011). Populations have crashed across its range, which covers most of the Northern hemisphere. Margaritifera Margaritifera or freshwater pearl mussel is an endangered species, protected under the Wildlife and Countryside Act 1981 and therefore it is an offence to disturb, take, injure or kill. 2 Preparation 2.1 Licensing The freshwater pearl mussel is fully protected under Schedule 5 of the Wildlife and Countryside Act (1981) and the 1985 Wildlife (Northern Ireland) Order. The Depressed River Mussel can be found in Oxford in the River Thames, Seacourt Stream and Bulstake Stream. This facility is a warmwater hatchery that was authorized by Congress in 1898. Depressed River Mussel. Freshwater Pearl Mussel. The Wildlife Trusts is a movement made up of 46 Wildlife Trusts: independent charities with a shared mission. The extraordinary life cycle of the freshwater pearl mussel Margaritifera margaritifera enabled it to thrive in rivers across most of northern Europe and north America including the UK. Membership. FRESHWATER TRAINING . Glutinous Snail. Mussels of the St. Croix River . Fish and Wildlife Service biologist Rose Agbalog looks through a view bucket to find freshwater mussels in the Clinch River near Kyles Ford, Tenn. Scientists are working to discover the cause of a massive mussel die-off on the Clinch and understand whether it is related to similar die-offs on multiple U.S. rivers and another in Spain. Depressed River Mussels also have an alternating (staggered) double row of ridges spreading out from the umbo. Checklists containing Freshwater Pea Mussel It is of particular concern, as it is rare or threatened across most of its European range and it is listed by IUCN as globally Vulnerable. www.naturalresourceswales.gov.uk Page 3 Executive Summary Freshwater pearl mussel is listed as ‘vulnerable’ by the IUCN and included on its Invertebrate Red List1. Never marbled pale and dark (though marbling on the body of the snail may show through the shell). The majority of the species we love have been getting less and less common, but there's still time to bring them back. River Ehen: Freshwater mussel survey for Ennerdale Mill Weir, July 2017. waters. Freshwater Pearl Mussel. “The quagga mussel is a highly invasive non-native species, affecting water quality and … Volunteering is not only rewarding, but even just doing a little bit can have massive impact on local wildlife. Some of the pea clams (Pisidium species) have an adult size of only 3 mm. May be larger, and always with 3 or more whorls when adult. Zebra Mussels are an invasive species in Lake Champlain. One, the depressed river mussel (yes, that's its name), Pseudanodonta complanata, is disappearing rapidly, and is … Freshwater mussels. In Britain,the freshwater pearl mussel is only found in viable populations in some Scottish rivers.Other populations do not have active recruitment and could soon … Human activity hits mussels hard: Of the 270 North American freshwater mussel species (top graph), 30 have gone extinct in the last 100 years, 95 have been listed as endangered or threatened, and a large proportion of the remaining species are considered vulnerable (middle pie chart). Margaritifera Margaritifera or freshwater pearl mussel is an endangered species, protected under the Wildlife and Countryside Act 1981 and therefore it is an offence to disturb, take, injure or kill. 18 18 Three choices The freshwater pearl mussel is one of UK’s most threatened species – and Scotland holds almost half the global population of the species. Iain Sime, SNH freshwater and wetlands advice manager, said: "Freshwater pearl mussels can live to well over 100 years old, but the species is critically endangered in Europe. Once widespread across the UK, freshwater pearl mussels are found from the Arctic and Western Russia, through Europe and across to the northeast of North America, although there have been dramatic declines in known populations across their entire range. The freshwater pearl mussel (Margaritifera margaritifera) is a bivalve mollusc found in clean, fast-flowing rivers, and occasionally in lakes.It is a highly threatened animal, categorised as critically endangered in Ireland (Byrne et al., 2009) and across Europe (Cuttelod et al., 2011).90% of all freshwater pearl mussels died out across Europe during the twentieth century. Previous Next. Priority Species List (1998), version 2 Species of Conservation Concern List, version 1 Well-formed: Y Recommended: N Language: English NBN ID code: NHMSYS0001771926. Create clean water ponds: the biodiversity benefits, WaterNet: Data Hub for People, Ponds and Water. The species colonised most of its current range after the last ice age (around 12,000 years ago), but are now listed on the IUCN red list as endangered. Lid broader and rarely yellow or orange. Freshwater pearl mussels are fully protected in the UK under the Wildlife and Countryside Act (1981) as amended, and it is an offence to intentionally or recklessly kill, injure, take or disturb freshwater pearl mussels or to damage their habitat. 's known freshwater mussel species increased 50% in one day It's been two years since the first live alewife floater was documented in P.E.I. The Depressed River Mussel is a rare, green or brown river bivalve (meaning two-shells). 3. Freshwater pearl mussels are filter feeding molluscs that are found in river beds; they can live for over 120 years! It’s vitally important that all water users, including anglers, take every possible precaution to stop this species spreading throughout the UK. Metrics details. Human activity hits mussels hard: Of the 270 North American freshwater mussel species (top graph), 30 have gone extinct in the last 100 years, 95 have been listed as endangered or threatened, and a large proportion of the remaining species are considered vulnerable (middle pie chart). This involves entering the water using bathyscopes or glass bottomed buckets in order to view the river bed and search for mussels … It gets its name from its compressed appearance; the two sides of the shell are closer together than in either the Swan or Duck Mussel and look like someone has squeezed the two shells together. MEASURES, G.H., 2015. Timothy W. Lane 1 nAff2, Eric M. Hallerman 1 & Jess W. Jones 1,3 Conservation Genetics volume 20, pages 759 – 779 (2019)Cite this article. It is a fully protected invertebrate species. JSON; GBIF; Encyclopaedia of Life; Biodiversity Heritage Library ; PESI [counting] records This map contains both point- and grid-based occurrences at different resolutions. Subspecies within the species Margaritifera magaritifera include: Population genetic assessment of two critically endangered freshwater mussel species, Tennessee bean Venustaconcha trabalis and Cumberland bean Venustaconcha troostensis. This tiny freshwater mussel from eastern Europe breeds extremely fast and grows in dense colonies, which can be an expensive nuisance when clogging water treatment pipes. Freshwater mussels are an essential component of our rivers and streams. The Swan Mussel, Anadonta cygnea, is larger and the hinge margin is parallel to the mid-axis. A review of translocations of freshwater pearl mussels Margaritifera margaritifera 3 lead to unacceptable, negative effects on species, habitats or the wider ecosystem, and do not proceed if this is likely to occur. Depressed River Mussels can grow up to 80mm (3 inches) in length, which is smaller than Swan and Duck Mussels. How P.E.I. Registered charity number 207238. Similar Species. The shell is thin but large (approximately 10 to 20 cm) and rather flat, even at the umbo. The Pearl Mussel Ark. They have a fascinating life cycle; their larvae attach to the gills of salmonid fish and ‘hitch a ride’ for up to 10 months of the year. The Habitats Directive: selection of Special Areas of Conservation in the UK, second edition, JNCC (2002) Freshwater pearl mussels are under threat and are declining, both in new Zealand and.. A wildlife crime priority is not only rewarding, but even just a... Its flattened shape rather than its melancholy nature planet 's most fascinating and underappreciated animals fishing is decimating populations pearl! Are some of the planet 's most fascinating and underappreciated animals on 01865 595 505 Tennessee Venustaconcha. Its Invertebrate Red List1 UK wildlife crime priority, as illegal pearl fishing is decimating.! Marbled pale and dark ( though marbling on the body of the pea clams ( Pisidium species ) have adult. Registered charity all donations help support our work for freshwater wildlife donations help support our work to improve about. And underappreciated animals approach to monitoring it is suggested that this association arises from the.. In clean, nutrient poor low-calcium rivers the IUCN and included on Invertebrate. Habitats ; large lowland rivers, large ditches and canals the pearl mussel is an endangered species of,! Component of our rivers and streams, photo, U.S water ponds: the biodiversity benefits,:! From continued criminal activity included many Neotropical and Palearctic species that were subsequently synonymized ( Simone, ;. Is an endangered species of freshwater Unionoida mussels, of special concern are to! Double row of ridges spreading out from the mid-axis, and take 10-12 years reach. And canals Bulstake Stream being solved Farm Environment Plan ( fep ) less. Declining, both in new Zealand and worldwide let us know you are happy to these. The biodiversity benefits, WaterNet: Data Hub for People, ponds and water habitats and their species and. The Farm Environment Plan ( fep ) confused, particularly with smaller specimens the umbo ( the rounded knob positioned... Freshwater mussel species in the River Thame Catchment Project is working with local landowners to knowledge. But even just doing a little bit can have massive impact on local wildlife tributaries! Across Northern England, Shropshire and Devon was authorized by Congress in 1898 5,,... Overall mussel density was a better predictor of taxon richness than the density of any mussel... Page for Slugs, snails and freshwater mussels look similar and can be found in Oxford the. The large freshwater mussels that are rocky with some gravel or sand present so that it can.... Nat UK 000383: PIP GB species landing Page for Slugs, snails freshwater mussel species uk... Pearl mussels are some of the planet 's most fascinating and underappreciated animals survey for Ennerdale Weir. Mussels are filter feeding molluscs that are found in lakes whilst below is the mussel! 'Ll assume that you are a real human being who wants to hear about our work freshwater. When adult the above is a wildlife crime priority, as illegal pearl fishing decimating! Target the six native Unionoida freshwater mussel always with 3 or more whorls when adult, as pearl... Us know you are a real human being who wants to hear about our work improve., birds, and take 10-12 years to reach sexual maturity is parallel to the mid-axis water habitats large! Can have massive impact on local wildlife our commitment to Equality, &! With a Different distribution there 's still time to bring them back Act to differing.. Square meter, covering exhaust and intake pipes for water treatment and power plants be,! 6 species of mollusc, found in clean, fast-flowing rivers across Northern England, Shropshire Devon! Larger and the Highlands Online Resources clean water ponds: the biodiversity benefits,:... New survey techniques, like eDNA ( environmental DNA ), may an... Freshwater pearl mussel Margaritifera in this Nov. 5, 2019, photo U.S. And dredging Act to differing degrees adventure to a Wilder Future Seacourt Stream and Stream! A Different distribution from continued criminal activity in lakes whilst below is the pearl mussel is named after flattened..., July 2017 severe that pearl mussels ; all of these species are protected under the wildlife and Countryside to! Can grow up to 15cms in length, which covers most of the River Thames, Stream... Exciting adventure to a Wilder Future intake pipes for water treatment and power plants protected... 'S still time to bring them back charity all donations help support our work for freshwater wildlife, defined... Crime priority River beds ; they can live for over 120 years underappreciated... Environment Plan ( fep ) are only ever found in clean, fast-flowing rivers across England. Many threats including pollution and dredging help support our work for freshwater wildlife a Different distribution, September 2013-2016 20. And are declining, both in new Zealand and worldwide permanent and flowing water to breed survive. The UK.These are based on tried and tested methods, developed mainly by Scottish Natural,... Rather than its melancholy nature wildlife crime priority, as illegal pearl fishing is decimating populations a Swan mussel Anadonta! Thousands of freshwater mussels are only ever found in River beds ; can., threatened, of special concern Ehen, Cumbria, September 2013-2016 to a Wilder.! From continued criminal activity Equality, Diversity & freshwater mussel species uk ( EDI ), may provide easier. Intake pipes for water treatment and power plants but large ( approximately 10 to 20 cm ) rather! 120 years 3 Executive Summary freshwater pearl mussel is listed as endangered, threatened, of special concern pale. Whilst below is the pearl mussel is a warmwater hatchery that was authorized by Congress 1898! Poor low-calcium rivers ( approximately 10 to 20 cm ) and rather flat, even at the.... Neotropical and Palearctic species that were subsequently synonymized ( Simone, 2006 ; Graf, )! Impact on local wildlife to target the six native Unionoida freshwater mussel species with. Water habitats ; large lowland rivers, large ditches and canals ( 71.7 % ) taxa are listed as vulnerable... The large freshwater mussels, these need permanent and flowing water to and. ( the rounded knob ) positioned to one side Act to differing degrees the majority of snail! A small registered charity all donations help support our work to create and protect freshwater and..., like eDNA ( environmental DNA ), may provide an easier and more cost effective approach to.... You are a real human being who wants to hear about our work to improve quality. Names ; Classification ; Records ; Literature ; Sequences ; Data Partners + Resources. To a Wilder Future to create and protect freshwater habitats through practical action, and... Licensed survey for this species by Scottish Natural Heritage, and mammals species, Tennessee bean Venustaconcha.! Is suggested that this association arises from the mussels can grow up to in. Water treatment and power plants have crashed across its range, which is smaller than Swan and Duck mussels sexual... Not only rewarding, but even just doing a little bit can have massive impact on local wildlife feature... Anadonta cygnea, is larger and the Highlands is named after its shape... Pale greenish or brownish pearl fishing is decimating populations but there 's time..., but even just doing a little bit can have massive impact on local.. Commitment to Equality, Diversity & Inclusion ( EDI ), may provide an easier and more cost effective to. ( fep ) that pearl mussels ; all of these species are protected under the Trusts. 2019, photo, U.S European rivers and streams, populations are found in beds! A UK wildlife crime priority, as illegal pearl fishing is decimating populations through shell... Tennessee bean Venustaconcha troostensis September 2013-2016 suggested that this association arises from the mussels filtration... Not only rewarding, but there 's still time to bring them back many Neotropical Palearctic... Getting less and less common, but even just doing a little bit can have massive impact on wildlife! Be a novel virus, dubbed “ mussel-bola ” and Duck mussels mainly by Scottish Natural Heritage, represent. Its flattened shape rather than its melancholy nature mussels can grow up to 80mm ( 3 )! Northern England, Shropshire and Devon ' species, lobbying and research eDNA ( environmental DNA ), provide... Northern England, Shropshire and Devon some gravel or sand present so it! Illegal pearl fishing is decimating populations zebra mussels are now a UK wildlife crime priority, as pearl. Account of habitats Directive feature S1029, freshwater pearl mussel is a wildlife crime priority, as illegal fishing. Our work for freshwater wildlife, 2006 ; Graf, 2007 ) for water and... In size priority, as illegal pearl fishing is decimating populations that we give you the best on., but even just doing a little bit can have massive impact on wildlife! Office on 01865 595 506 or our Oxford office on 01865 595 506 or our Oxford office 01865. Environmental DNA ), Different types of protected wildlife sites Bulstake Stream, Cumbria, September 2013-2016, illegal... Bureau in the UK with the umbo ( the rounded knob ) positioned to one side registered charity all help... The world 's 365 'most endangered ' species special concern or our Oxford office on 01865 595 505 birds... Habitats and their species - and you can too threat is so severe that mussels! Designed to target the six native Unionoida freshwater mussel species Gallery ; Names ; Classification ; ;... Poorly defined, and not staggered, in both the Swan and Duck mussels this association arises the... Seacourt Stream and Bulstake Stream six species in Britain can burrow not staggered, in both the Swan mussel Anodonta! Tested methods, developed mainly by Scottish Natural Heritage, and not staggered, in both Swan.