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Corbicula fluminea

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Corbicula fluminea
Corbicula fluminea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Venerida
Superfamily: Cyrenoidea
Family: Cyrenidae
Genus: Corbicula
Species:
C. fluminea
Binomial name
Corbicula fluminea
Synonyms

Tellina fluminea O. F. Müller, 1774 (original combination)

Corbicula fluminea is a species of freshwater clam native to eastern Asia which has become a successful invasive species throughout the world, including North America, South America, Europe,[1] and New Zealand.[2][3] It is native to freshwater environments of Eastern Asia, including Russia, Thailand, the Philippines, China, Taiwan, Korea, and Japan. C. fluminea also occurs naturally in freshwater environments of Africa.[4] Corbicula fluminea is commonly known in the west as the Asian clam, Asiatic clam, or Asian gold clam. In Southeast Asia, C. fluminea is known as the golden clam, prosperity clam, pygmy clam, or good luck clam. In New Zealand, it is commonly referred as the freshwater gold clam.[2][3]

Right and left valve of the same specimen:

  • Right valve
    Right valve
  • Left valve
    Left valve

Overview

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Corbicula have had global success as an aquatic invasive species, having been introduced to a novel range including South America,[5] North America and Europe. Human industrial activity, such as transport of larvae via ballast water in container ships, has been noted in the literature as a chief invasion vector.[6] A market exists for Asian clams for human consumption in Japan, China, and other countries in the region.[6] According to the United States Geological Survey, C. fluminea is likely to continue to expand its North American range until it reaches the maximum extent of its low temperature tolerance.[7] The periostracum of the shell is normally yellow-green, brown, or black with concentric growth rings of the prismatic layer visible through the proteinous outer layer. The periostracum can flake, allowing the white prismatic layer to show through. The shells exhibit a light purple nacre on the inside.

As a filter feeder,[2][8][9] Corbicula strains suspended contents of nearby water and absorbing material to feed itself. Large quantities of toxins are absorbed in their gut,[10] accumulating high concentrations of toxins.[11] The clams excrete large quantities of inorganic chemicals, such as nitrogen and phosphorus, after feeding off sediment.[12] Despite edibility of Corbicula in native countries, Coribicula sourced from New Zealand's Waikato River is considered not safe to eat,[13] as caused by pollution in the river.[10][14]

Corbicula is a successful breeder in the rivers and lakes of many countries in the world, breeding densely in localized water,[12][15] and transported elsewhere via water currents or by the movement of humans and their waterborne apparatus.[12] This allows them to outcompete against native invertebrates,[16] including mollusks such as mussels,[17] for phytoplankton as food.[17] Corbicula has shown to interfere with water-based infrastructure created by humans,[18][11][10] such as water treatment and hydroelectric dams,[12][11] by clogging them up.[2]

Life cycle

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Right after reaching maturity, these clams produce eggs, followed by sperm. Throughout adult life, Corbicula is a self-fertile simultaneous hermaphrodite which can broadcast spawn up to 570 mucoid larvae per day per individual, and more than 68,000 per year per individual.[19] Larvae are ~200 microns in length when discharged from an adult and dispersed through water until becoming sessile adults.[19] Adults can reach a length of about 5 centimetres (2.0 in).[citation needed]

Feeding

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Corbicula fluminea is an active suspension feeder, and in the process of feeding by pumping water through its body (as well as feeding on interstitial sedimentary material via pedal feeding when suspended grazing items are limited).[20] They feed primarily on phytoplankton (algae), which they actively filter out the water, but may pedal feed on organic matter in the sandy or muddy bottoms of streams, lakes, or canals where the clam establishes a population.[1]

Taxonomy

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Corbicula fluminea vs Corbicula fluminalis

Corbicula fluminea is a species of freshwater clam, an aquatic bivalve mollusk in the family Cyrenidae.[21] C. fluminea is often confused with Corbicula fluminalis due to the two species' similar color and texture. Two species may be present in some introduced populations: C. fluminea and C. fluminalis.[22] The names themselves are sometimes confused in the literature (e.g. by being called "Corbicula fluminata").

Corbicula fluminalis

The ratio of width and height in C. fluminea is on average 1.1. In C. fluminalis it is smaller (0.97); still, there is much variation and considerable overlap in shape. Most easily, they can be distinguished by the number of ribs on the shell; C. fluminea has 7 to 14 ribs per cm, C. fluminalis 13 to 28.[23] This character is already clearly recognizable (albeit only by direct comparison) in very small (5 mm diameter) specimens. In addition, when viewed from the ventral side (looking at the opening between the shells), C. fluminalis is rounder, almost heart-shaped, while C. fluminea has a slightly flatter shape like a teardrop with a notched broad end. Small specimens of C. fluminalis are almost spherical, while those of C. fluminea are decidedly flattened. All these differences except the rib number are a consequence of C. fluminalis having a markedly more swollen, pointed and protruding umbo.

Range

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As a native species

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This clam originally occurs in freshwater environments of Eastern Asia, including Russia, Thailand, the Philippines, China, Taiwan, Korea, and Japan. C. fluminea also occurs naturally in freshwater environments of Africa.[4]

As an invasive species

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Many coastal rivers with a heavy industrial shipping presence in the invaded range of C. fluminea sustain Asian clam populations.[6] Various non-indigenous populations of C. fluminea include:

In Naperville, Illinois, USA

Means of dispersal

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Human vectors

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Human activities are the chief reason for the wide dispersal of C. fluminea as an invasive aquatic organism.[6] Its global invasion probably started with Asian immigration in North America during the 1920s, as it was used as food source by these communities.[6] Corbicula fluminea, along with other exotic bivalve larvae, may be accidentally transported via ballast water or recreational boaters.[6][54] Furthermore, the species is common in the aquarium trade and can be intentionally or unintentionally released in the wild by aquarists.[6]

Life history advantages

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Corbicula fluminea enjoys several physiological capabilities which are advantageous in promoting its invasion of novel lentic/lotic environments including:

  • Rapid individual growth rate
  • Short time to reach sexual maturity
  • Short lifespan paired with high fecundity
  • Fast rate of water filtration for suspension feeding
  • Ability to broadcast gametes over a broad area by utilizing water flow (in rivers)
  • Tolerance of a wide variety of substrate/habitat types,[55]

Corbicula fluminea is a self-fertilizing, simultaneous hermaphrodite which can asexually produce internally-brooded, semi-buoyant planktonic larvae when spermiogenesis is induced at temperatures above 10 °C (50 °F).[19] This allows C. fluminea to colonize novel habitats at an advanced rate.[55]

Habitat association

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Studies on which abiotic habitat characteristics are most strongly associated with Asian clam population abundance have produced varying results. Brazilian habitats have been found to have support the largest abundances of invasive Corbicula spp. in areas with coarser dominant sediment fractions, while negatively correlated with increasing levels of organic matter.[56] Others studies have shown abiotic habitat characteristics such as water redox potential, inorganic nutrient content, hardness, and organic matter content in tandem with the amount of very coarse sand combine to explain 59.3% of Corbicula population habitat association via statistical tests.[44] Asian clam invasions seem to be limited by elevation (88% of the invaded range is below 500m elevation[1]), latitude (90% lies between latitudes 30°and 55°[1]) as well as the minimum winter temperature (−10 °C (14 °F)) of the ecosystem.[1]

Impacts on invaded ecosystems

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Corbicula fluminea reworks the sediments it resides on through the process of bioturbation.[20] Asian clams are considered biodiffusors similar to marine clam species due to their observed bioturbation activity which may negatively affect other members of the benthic community in invaded areas.[20] Excessive excretion of inorganic chemicals such as nitrogen and phosphorus imbalance concentrations of oxygen in the water, encouraging the growth of algae and cyanobacteria, as a byproduct of the excretion of these clams.[12]

Corbicula has also been shown to profoundly influence community dynamics within the macrobenthos of invaded systems.[57] Corbicula has been shown to remove as much as 70% of phytoplankton biomass in reaches of invaded rivers with a robust clam population.[58] The clam has also been reported as causing a decline of dissolved oxygen in the water of the same river system with wide-ranging second-order effects.[58]

The primary economic and social impact of the invasion of C. fluminea has been billions of dollars in costs associated with clogged plumbing and, heat exchangers, or other human-created infrastructure.[59] Ecologically, C. fluminea contributes to declines and replacement of highly vulnerable, already threatened native clams.[60]

Global invasion pattern

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The first recorded instance of Corbicula presence in the scientific literature in the Western Hemisphere was of its introduction into British Columbia circa 1924, followed by a spread throughout the Pacific Northwest and across the American south through South America. Invasions in Europe and Central America were more recent, first appearing in Caribbean countries in 1998.[1]

Corbicula was discovered in New Zealand along a stretch of the Waikato River in May 2023.[61][2] According to the Ministry of Primary Industries, the clams have likely populated in the river for several years prior to discovery.[2] Based on patterns of unsuccessful eradication of Corbicula overseas, eradication of Corbicula is predicted to be near-impossible in New Zealand.[62][63]

Mitigation

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They have been blamed for algal blooms and concerns exist they will outcompete and displace native species such as the montane pea clam (Pisidium spp.) and the ramshorn snail (Planorbidae). Efforts are underway at Lake Tahoe to smother the clams on the bottom with rubber mats.[64] In August 2020 routine inspections in Wyoming found several watercraft to be heavily infested including one with C. fluminea.[65][66] On October 16, 2020, the Montana Department of Fish, Wildlife and Parks recommended that Lake Elmo — in Billings — be drained to dry out and freeze to death the C. fluminea there.[67][68][69]

See also

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References

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  1. ^ a b c d e f g Crespo, Daniel; Dolbeth, Marina; Leston, Sara; Sousa, Ronaldo; Pardal, Miguel Ângelo (July 2015). "Distribution of Corbicula fluminea (Müller, 1774) in the invaded range: a geographic approach with notes on species traits variability". Biological Invasions. 17 (7): 2087–2101. Bibcode:2015BiInv..17.2087C. doi:10.1007/s10530-015-0862-y. hdl:1822/49103. ISSN 1387-3547. S2CID 16548008.
  2. ^ a b c d e f g h Industries, Ministry for Primary (September 25, 2023). "Freshwater gold clam (Corbicula fluminea) | MPI - Ministry for Primary Industries. A New Zealand Government Department". www.mpi.govt.nz.
  3. ^ a b c Martin, Matthew (2023-05-24). "Invasive clam found in Waikato River could decimate native species, infest Lake Taupō and clog hydro dams". Stuff. Retrieved 2023-05-25.
  4. ^ a b USGS (2001): Nonindigenous species information bulletin: Asian clam, Corbicula fluminea (Müller, 1774) (Mollusca: Corbiculidae). PDF fulltext
  5. ^ Ituarte, C., 1981. Primera noticia acerca de la introducción de pelecípodos asiáticos en el área rioplatense (Mollusca: Corbiculidae). Neotropica 27 (77): 78-83
  6. ^ a b c d e f g h Karatayev, Alexander; et al. (2007). "Changes in global economies and trade: the potential spread of exotic freshwater bivalves". Biological Invasions. 9 (2): 161–180. Bibcode:2007BiInv...9..161K. doi:10.1007/s10530-006-9013-9. S2CID 40258885.
  7. ^ USGS
  8. ^ "Aquatic Invasive Species Quick Guide" (PDF).
  9. ^ "Asian Clam" (PDF). Freshwater Aquatic Invasive Species in Rhode Island. November 2017.
  10. ^ a b c "Invasive clam pest discovered in Waikato River". Te Ao Māori News.
  11. ^ a b c "The Waikato Times". www.waikatotimes.co.nz.
  12. ^ a b c d e "Asian Clams" (PDF). NHDES. 2019.
  13. ^ a b Wells, Imogen (September 28, 2023). "Newsable: The clam you don't want to eat, but do need to know about". Stuff.
  14. ^ "Invasive clam discovered: Morgan 'mortified' by pest found in awa". NZ Herald. October 3, 2023.
  15. ^ "Asian clam » Marine Biosecurity Porthole". www.marinebiosecurity.org.nz.
  16. ^ "Asian Clam". NYIS.
  17. ^ a b The Asian clam (Corbicula fluminea) and its relationship to the balanced indigenous population ("BIP") in Hooksett Pool, Merrimack River, New Hampshire (PDF) (Technical report). Public Service Company of New Hampshire. AR-1555.
  18. ^ "Corbicula fluminea". Nemesis.
  19. ^ a b c McMahon, R.F. (1999) Invasive Characteristics of the Freshwater Bivalve Corbicula fluminea. In R. Claudi & J.H. Leach (Eds.), Nonindigenous Freshwater Organisms: Vectors, Biology, and Impacts (pp. 315-343).
  20. ^ a b c Majdi, Nabil; Bardon, Léa; Gilbert, Franck (July 2014). "Quantification of sediment reworking by the Asiatic clam Corbicula fluminea Müller, 1774" (PDF). Hydrobiologia. 732 (1): 85–92. doi:10.1007/s10750-014-1849-x. ISSN 0018-8158. S2CID 17503836.
  21. ^ Bouchet, P. (2015). Corbicula fluminea (O. F. Müller, 1774). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=181580 on 2015-08-26
  22. ^ It is not entirely clear that this is the correct name (Jueg & Zettler, 2004)
  23. ^ Jueg & Zettler (2004), and see "External links"
  24. ^ Kirkendale, Lisa (2008). "The Asiatic Clam (Corbicula fluminea) 'Rediscovered' on Vancouver Island" (PDF). The Victorian Naturalist. 65 (3): 12–16.
  25. ^ "Asiatic Clam Corbicula fluminea". NNSS.
  26. ^ Elliott, Paul; Zu Ermgassen, Philine S.E. (2008). "The Asian clam (Corbicula fluminea) in the River Thames, London, England". Aquatic Invasions. 3 (1): 54–60. doi:10.3391/ai.2008.3.1.9.
  27. ^ Vázquez A. A.; Perera S. (2010). "Endemic Freshwater molluscs of Cuba and their conservation status" (PDF). Tropical Conservation Science. 3 (2): 190–199. doi:10.1177/194008291000300206.
  28. ^ Institute, Rensselaer Polytechnic. "Scientists find new invasive fresh water clam species in Lake George". phys.org. Retrieved 2022-08-16.
  29. ^ a b Darrigran, G.; Damborenea, C. "La almeja de agua dulce Corbicula fluminea (Müller, 1774)". In Penchaszadeh, P.E (ed.). Invasores. Invertebrados exóticos en el Río de La Plata y región marina aledaña. Buenos Aires: Eudeba. pp. 133–177.
  30. ^ Cazzaniga, N. J. (1997). "Asiatic Clam, Corbicula fluminea, Reaching Patagonia (Argentina)". Journal of Freshwater Ecology. 12 (4): 629–630. Bibcode:1997JFEco..12..629C. doi:10.1080/02705060.1997.9663577.
  31. ^ Cazzaniga, N. J.; Pérez, C. (1999). "Asiatic clam, Corbicula fluminea, in northwestern Patagonia (Argentina)". Journal of Freshwater Ecology. 14 (4): 551–552. Bibcode:1999JFEco..14..551C. doi:10.1080/02705060.1999.9663713.
  32. ^ Archuby, F.; Macchi, P.; Darrigran, G. (2013). "Corbicula fluminea (Muller 1774) (Corbiculidae) en el Alto Valle del Río Negro". I Congreso Argentino de Malacología. La Plata: UNLP.
  33. ^ Martítnez E, Rafael (1987). "Corbicula manilensis molusco introducido en Venezuela". Acta Científica Venezolana. 38: 384–385.
  34. ^ Ojasti, Juhani.; González Jiménez, Eduardo; Szeplaki Otahola, Eduardo; García Román, Luis B. (2001). Informe sobre las especies exótica en Venezuela. Caracas: Ministerio del Ambiente y de los Recursos Naturales. ISBN 980-04-1254-9.
  35. ^ Lasso, Carlos A.; Martínez Escarbassiere, Rafael; Capelo, Juan Carlos.; Morales Betancourt, Mónica; Sánchez- Maya, Alejandro (2009). "Lista de los moluscos (Gastropodos_Bivalvia) dulceacuícolas y estuarinos de la cuenca del Orinoco (Venezuela)". Biota Colombiana. 10 (1–2): 63–74.
  36. ^ Ortmann, Christian; Grieshaber, Manfred K. (November 2003). "Energy metabolism and valve closure behaviour in the Asian clam Corbicula fluminea". The Journal of Experimental Biology. 206 (Pt 22): 4167–4178. doi:10.1242/jeb.00656. ISSN 0022-0949. PMID 14555755. S2CID 27039588.
  37. ^ "How Asian Clams Ended Up West of the Danube". Condé Nast Traveler. 2013-07-29. Retrieved 2022-08-16.
  38. ^ Jueg, U. & Zettler, M.L. (2004): Die Molluskenfauna der Elbe in Mecklenburg-Vorpommern mit Erstnachweis der Grobgerippten Körbchenmuschel Corbicula fluminea (O. F. Müller 1756). Mitteilungen der NGM 4(1): 85-89. [in German] PDF fulltext Archived 2007-09-27 at the Wayback Machine
  39. ^ Hayden, B. and Caffrey, J.M. 2013. First recording of the Asian Clam (Corbicula fluminea (Müller, 1774)) from the River Shannon, with preliminary notes on population size and class distribution. Ir. Nat. J. 32: 29 - 31.
  40. ^ Beran L. (2000) "First record of Corbicula fluminea (Mollusca: Bivalvia) in the Czech Republic". Acta Societatis Zoologicae Bohemicae 64: 1-2.
  41. ^ a b (in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
  42. ^ Beran L. (2006). Spreading expansion of Corbicula fluminea (Mollusca: Bivalvia) in the Czech Republic. – Heldia 6 5/6: 187-192.
  43. ^ Komzák, Petr; Beran, Luboš; Horsák, Michal (2018-11-13). "The first record of Corbicula fluminea (O. F. Müller, 1774) in Moravia (SE Czech Republic)". Malacologica Bohemoslovaca. 17: 28–30. doi:10.5817/MaB2018-17-28. ISSN 1336-6939. S2CID 134335207.
  44. ^ a b Sousa, Ronaldo; Rufino, Marta; Gaspar, Miguel; Antunes, Carlos; Guilhermino, Lúcia (January 2008). "Abiotic impacts on spatial and temporal distribution ofCorbicula fluminea (Müller, 1774) in the River Minho estuary, Portugal". Aquatic Conservation: Marine and Freshwater Ecosystems. 18 (1): 98–110. Bibcode:2008ACMFE..18...98S. doi:10.1002/aqc.838.
  45. ^ a b "Invasive clam discovered by Sherburne County youth". UMN Extension. 2020-11-09. Retrieved 2020-11-11.
  46. ^ Handschuh, Darren (2020-12-14). "Invasive species of clams found in Shuswap Lake - Salmon Arm News". Castanet.net. Retrieved 2020-12-14.
  47. ^ Manchester, Jon (2020-12-14). "Invasive fresh water clams found at numerous locations in Shuswap Lake - Salmon Arm News". Castanet. Retrieved 2020-12-14.
  48. ^ "Live Invasive Freshwater Clams Detected in Shuswap Lake". Columbia Shuswap Invasive Species Society. 2020-09-16. Retrieved 2020-12-14.
  49. ^ Black Press Submitted (2021-06-16). "Invasive Asian Clams found in Pend D'Oreille River". Nelson Star. Retrieved 2021-06-18.
  50. ^ "Popular lake could be closed as precaution against invasive Asian clam". NZ Herald. October 21, 2023.
  51. ^ "Golden clam threat prompts call for Lake Okataina closure". Te Ao Māori News.
  52. ^ "Gold clams: Bay of Plenty launches new QR code for lake users". NZ Herald. October 21, 2023.
  53. ^ "Lake Ōkataina gold clam protection: Lake partially reopens, fee to be charged at permanent wash station". Rotorua Daily Post. 9 November 2023.
  54. ^ "Caution urged to prevent spread of freshwater gold clams". Otago Daily Times Online News. July 19, 2023.
  55. ^ a b Cidália Gomes; Ronaldo Sousa; Tito Mendes; Rui Borges; Pedro Vilares; Vitor Vasconcelos; et al. (2016). "Low Genetic Diversity and High Invasion Success of Corbicula fluminea (Bivalvia, Corbiculidae) (Müller, 1774) in Portugal". PLOS ONE. 11 (7): e0158108. Bibcode:2016PLoSO..1158108G. doi:10.1371/journal.pone.0158108. PMC 4938217. PMID 27391333.
  56. ^ Silveira, T. C. L.; Gama, A. M. S.; Alves, T. P.; Fontoura, N. F. (2016-04-19). "Modeling habitat suitability of the invasive clam Corbicula fluminea in a Neotropical shallow lagoon, southern Brazil". Brazilian Journal of Biology. 76 (3): 718–725. doi:10.1590/1519-6984.01915. ISSN 1678-4375. PMID 27097092.
  57. ^ Ilarri, M. I.; Souza, A. T.; Antunes, C.; Guilhermino, L.; Sousa, R. (2014-04-20). "Influence of the invasive Asian clam Corbicula fluminea (Bivalvia: Corbiculidae) on estuarine epibenthic assemblages". Estuarine, Coastal and Shelf Science. 143: 12–19. Bibcode:2014ECSS..143...12I. doi:10.1016/j.ecss.2014.03.017. hdl:1822/31318. ISSN 0272-7714.
  58. ^ a b Pigneur, Lise-Marie; Falisse, Elodie; Roland, Kathleen; Everbecq, Etienne; Deliège, Jean-François; Smitz, Joseph S.; Van Doninck, Karine; Descy, Jean-Pierre (March 2014). "Impact of invasive Asian clams, Corbicula spp., on a large river ecosystem" (PDF). Freshwater Biology. 59 (3): 573–583. Bibcode:2014FrBio..59..573P. doi:10.1111/fwb.12286. S2CID 84986393.
  59. ^ Pimentel, D., Zuniga, R. & Morrison, D. (2005) Update on the environmental and economic costs associated with alien-invasive species in the United States. Ecological economics 52: 273-288.
  60. ^ "Corbicula fluminea (mollusc)". Archived from the original on 2013-11-01. Retrieved 2010-01-05.
  61. ^ "Freshwater gold clam (Corbicula fluminea) | MPI - Ministry for Primary Industries. A New Zealand Government Department". 6 July 2023.
  62. ^ "Newly discovered invasive Gold clam can produce 400 offspring a day". RNZ. May 25, 2023.
  63. ^ "The Waikato Times". www.waikatotimes.co.nz.
  64. ^ "Aggressive Asian Clam Control Project At-Lake Tahoe". Archived from the original on 2014-07-14. Retrieved 2014-07-07.
  65. ^ "PHOTOS: Multiple watercraft in Wyoming found contaminated with invasive species". Oil City News. 2020-08-06. Retrieved 2020-11-15.
  66. ^ "AIS crew intercepts contaminated boats". Wyoming Game and Fish Department.
  67. ^ "Entire lake in Montana may be drained to eradicate invasive clams". Oil City News. 2020-10-20. Retrieved 2020-11-15.
  68. ^ "Lake Elmo Asian clam removal". Montana Department of Fish, Wildlife and Parks. Retrieved 2020-11-15.
  69. ^ "Montana approves plan to drain lake to kill invasive species". Tulsa World. 2021-01-03. Retrieved 2021-01-05.
  • Weitere, M. et al. (2009) Linking environmental warming to the fitness of the invasive clam Corbicula fluminea, Global Change Biology, Volume 15 Issue 12, Pages 2838 - 2851 [1]

Further reading

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