جراد المياه العذبة

"Crawfish" redirects here. For other uses, see Crawfish (توضيح).

جراد المياه العذبة
Temporal range: Barremian–recent
Paranephrops.jpg
Northern kōura, Paranephrops planifrons (Parastacidae)
التصنيف العلمي
مملكة:
Animalia
Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Order:
Decapoda
Suborder:
Pleocyemata
Infraorder:
Astacidea
Superfamily:
Astacoidea
Latreille, 1802
and Parastacoidea
Huxley, 1879
Families
Astacoidea
Parastacoidea
تربية جراد البحر أبيض المخالب في مفرخ سينريج، ويلز. تكوين عشيرة تكاثر من الحيوانات التي تم إدخالها في الأسر.
جراد البحر على غرار الكاجون
رجل يبيع جراد البحر المجفف في سوق أفريقي

جراد المياه العذبة هو قشريات المياه العذبة التي تنتمي إلى clade Astacidea، والتي تحتوي أيضًا على الكركند. في بعض المواقع ، تُعرف أيضًا باسم baybugs ، أو crabfish ، أو craws ، أو جراد البحر ، أو crawdaddies ، أو crawdads ، أو جراد البحر في المياه العذبة، أو الكركند الجبلي، أو البق الطيني، أو الكركند الصخري، أو yabbies.

من الناحية التصنيفية، هم أعضاء في superfamilies Astacoidea و Parastacoidea. إنهم يتنفسون من خلال الخيشوم الشبيهة بالريش. توجد بعض الأنواع في brooks و streams، حيث تجري المياه العذبة، بينما تزدهر أنواع أخرى في المستنقعات والقنوات وحقول الأرز. معظم جراد البحر لا يتحمل المياه الملوثة، على الرغم من أن بعض الأنواع، مثل "Procambarus clarkii" ، أكثر صلابة. يتغذى جراد البحر على الحيوانات والنباتات، سواء الحية أو المتحللة، والمخلفات.[1]


ينطبق مصطلح "جراد البحر" على أنواع المياه المالحة في بعض البلدان.


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المصطلحات

The name "crayfish" comes from the Old French word escrevisse (Modern French écrevisse).[2][3] The word has been modified to "crayfish" by association with "fish" (folk etymology).[2] The largely American variant "crawfish" is similarly derived.[2]

Some kinds of crayfish are known locally as lobsters,[4] crawdads,[5] mudbugs,[5] and yabbies. In the Eastern United States, "crayfish" is more common in the north, while "crawdad" is heard more in central and southwestern regions, and "crawfish" farther south, although considerable overlaps exist.[6]

The study of crayfish is called astacology.[7]


علم التشريح

المقالة الرئيسية: Decapod anatomy

The body of a decapod crustacean, such as a crab, lobster, or prawn (shrimp), is made up of twenty body segments grouped into two main body parts, the cephalothorax and the abdomen. Each segment may possess one pair of appendages, although in various groups, these may be reduced or missing. On average, crayfish grow to 17.5 cm (6.9 in) in length. Walking legs have a small claw at the end.[8]

التصنيف والتوزيع الجغرافي

Three families of crayfish
Astacidae: Austropotamobius pallipes
Cambaridae: Procambarus alleni
Parastacidae: Cherax destructor

Crayfish are closely related to lobsters, and together they belong to the infraorder Astacidea. Their phylogeny can be shown in the simplified cladogram below:[9][10][11]

Astacidea

clawed lobsters

Enoplometopoidea

Enoplometopidae

 
Nephropoidea

Nephropidae

 
 
crayfish

Parastacoidea

Parastacidae

 
Astacoidea

 

Cambaroididae

 
 

 

Astacidae

 
 

Cambaridae

 
 
 
 
 

Four extant (living) families of crayfish are described, three in the Northern Hemisphere and one in the Southern Hemisphere. The Southern Hemisphere (Gondwana-distributed) family Parastacidae, with 14 extant genera and two extinct genera, live(d) in South America, Madagascar, and Australasia. They are distinguished by the absence of the first pair of pleopods.[12] Of the other three Northern Hemisphere families (grouped in the superfamily Astacoidea), the four genera of the family Astacidae live in western Eurasia and western North America, the 15 genera of the family Cambaridae live in eastern North America, and the single genus of Cambaroididae live in eastern Asia.[10]

أمريكا الشمالية

The greatest diversity of crayfish species is found in southeastern North America, with over 330 species in 15 genera, all in the family Cambaridae. A further genus of astacid crayfish is found in the Pacific Northwest and the headwaters of some rivers east of the Continental Divide. Many crayfish are also found in lowland areas where the water is abundant in calcium, and oxygen rises from underground springs.[13]

In 1983, Louisiana designated the crayfish, or crawfish as they are commonly called, as its official state crustacean.[14] Louisiana produces 100 million pounds (45 million kilograms) of crawfish per year with the red swamp and white river crawfish being the main species harvested.[15] Crawfish are a part of Cajun culture dating back hundreds of years.[16] A variety of cottage industries have developed as a result of commercialized crawfish iconography. Their products include crawfish attached to wooden plaques, T-shirts with crawfish logos, and crawfish pendants, earrings, and necklaces made of gold or silver.[17]

أستراليا

Australia has over 100 species in a dozen genera. It is home to the world's three largest freshwater crayfish:

Many of the better-known Australian crayfish are of the genus Cherax, and include the common yabby (C. destructor), western yabby (C. preissii), and red-claw crayfish (C. quadricarinatus).[20]

The marron species C. tenuimanus is critically endangered, while other large Australasian crayfish are threatened or endangered.

نيوزيلندا

In New Zealand, two species of Paranephrops are endemic, and are known by the Māori name kōura.[21]

حيوانات أخرى

In Australia, New Zealand, and South Africa,[22] the term "crayfish" or "cray" generally refers to a saltwater spiny lobster, of the genus Jasus that is indigenous to much of southern Oceania,[23] while the freshwater species are usually called yabbies or kōura, from the indigenous Australian and Māori names for the animal, respectively, or by other names specific to each species. Exceptions include western rock lobster (of the Palinuridae family) found on the west coast of Australia (it is a spiny lobster, but not of Jasus); the Tasmanian giant freshwater crayfish (from the Parastacidae family and therefore a true crayfish) found only in Tasmania; and the Murray crayfish found along Australia's Murray River.[بحاجة لمصدر]

In Singapore, the term crayfish typically refers to Thenus orientalis, a seawater crustacean from the slipper lobster family.[24][25][26] True crayfish are not native to Singapore, but are commonly found as pets, or as an invasive species (Cherax quadricarinatus) in the many water catchment areas, and are alternatively known as freshwater lobsters.[27]

In England and Ireland, the terms crayfish or crawfish commonly refer to the European spiny lobster, a saltwater species found in much of the East Atlantic and Mediterranean.[28] The only true crayfish species native to the British Isles is the endangered white clawed crayfish.[29][30]

سجل الحفريات

Fossil records of crayfish older than 30 million years are rare, but fossilised burrows have been found from strata as old as the late Palaeozoic or early Mesozoic.[31][32] The oldest records of the Parastacidae are in Australia, and are 115 million years old[33] and the crayfish Palaeocambarus and Cricoidoscelosus from the Yixian Formation of China are likely around 120 million years old, making them both one of, if not, the oldest known crayfish to date.[34]


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تهديدات لجراد البحر

Crayfish are susceptible to infections such as crayfish plague and to environmental stressors including acidification. In Europe, they are particularly threatened by crayfish plague, which is caused by the North American water mold Aphanomyces astaci. This water mold was transmitted to Europe when North American species of crayfish were introduced.[35] Species of the genus Astacus are particularly susceptible to infection, allowing the plague-coevolved signal crayfish (native to western North America) to invade parts of Europe.[36]

Acid rain can cause problems for crayfish across the world. In whole-ecosystem experiments simulating acid rain at the Experimental Lakes Area in Ontario, Canada, crayfish populations crashed – probably because their exoskeletons are weaker in acidified environments.[37]

الآفات الغازية

In several countries, particularly in Europe, native species of crayfish are under threat by imported species, particularly the signal crayfish (Pacifastacus leniusculus).[38] [39] Crayfish are also considered an invasive predatory species, endangering native European species such as the Italian agile frog.

الاستخدامات

Human uses
Crayfish, boiled with potatoes and corn
A pet crayfish, Procambarus clarkii in a freshwater aquarium
Golden crayfish pendant, Chiriqui, Panama, c. 11th to 16th century AD

استخدام الطهي

المقالة الرئيسية: Crayfish as food

Crayfish are eaten worldwide. Like other edible crustaceans, only a small portion of the body of a crayfish is eaten. In most prepared dishes, such as soups, bisques and étouffées, only the tail portion is served. At crawfish boils or other meals where the entire body of the crayfish is presented, other portions, such as the claw meat, may be eaten.[بحاجة لمصدر]

Global crayfish production is centered in Asia, primarily China. In 2018, Asian production accounted for 95% of the world's crawfish supply. [40]

Crayfish is part of Swedish cuisine and is usually eaten in August at special crayfish parties (Swedish Kräftskiva). Documentation of the consumption of crayfish dates to at least the 16th century. On the Swedish west coast, Nephrops norvegicus (Swedish Havskräfta, sea crayfish) is more commonly eaten while various freshwater crayfish are consumed in the rest of the country. Prior to the 1960s, crayfish was largely inaccessible to the urban population in Sweden and consumption was largely limited to the upper classes or farmers holding fishing rights in fresh water lakes. With the introduction of import of frozen crayfish the crayfish party is now practiced widely practiced across all spheres in Sweden and among the Swedish-speaking population of Finland.[41]

In the United States, crayfish production is strongly centered in Louisiana, with 93% of crayfish farms located in the state as of 2018.[42] In 1987, Louisiana produced 90% of the crayfish harvested in the world, 70% of which were consumed locally.[43] In 2007, the Louisiana crayfish harvest was about 54,800 tons, almost all of it from aquaculture.[44] About 70–80% of crayfish produced in Louisiana are Procambarus clarkii (red swamp crawfish), with the remaining 20–30% being Procambarus zonangulus (white river crawfish).[45] Optimum dietary nutritional requirement of freshwater crayfish, or crayfish nutrient specifications are now available for aquaculture feed producers [46]

Like all crustaceans, crayfish are not kosher because they are aquatic animals that do not have both fins and scales.[47] They are therefore not eaten by observant Jews.[48]

الطُعم

Crayfish are preyed upon by a variety of ray-finned fishes,[49] and are commonly used as bait, either live or with only the tail meat. They are a popular bait for catching catfish,[50] largemouth bass, smallmouth bass, striped bass,[51] perch, pike[52] and muskie. When using live crayfish as bait, anglers prefer to hook them between the eyes, piercing through their hard, pointed beak which causes them no harm; therefore, they remain more active.[53]

When using crayfish as bait, it is important to fish in the same environment where they were caught. An Illinois State University report that focused on studies conducted on the Fox River and Des Plaines River watershed stated that rusty crayfish, initially caught as bait in a different environment, were dumped into the water and "outcompeted the native clearwater crayfish".[54] Other studies confirmed that transporting crayfish to different environments has led to various ecological problems, including the elimination of native species.[55] Transporting crayfish as live bait has also contributed to the spread of zebra mussels in various waterways throughout Europe and North America, as they are known to attach themselves to exoskeleton of crayfishes.[56][57][58]

الحيوانات الأليفة

Crayfish are kept as pets in freshwater aquariums. They prefer foods like shrimp pellets or various vegetables, but will also eat tropical fish food, regular fish food, algae wafers, and small fish that can be captured with their claws. A report by the National Park Service[59] as well as video and anecdotal reports by aquarium owners[60] indicate that crayfish will eat their moulted exoskeleton "to recover the calcium and phosphates contained in it."[59] As omnivores, crayfish will eat almost anything; therefore, they may explore the edibility of aquarium plants in a fish tank. However, most species of dwarf crayfish, such as Cambarellus patzcuarensis, will not destructively dig or eat live aquarium plants.[61]

In some nations, such as the United Kingdom, United States, Australia, and New Zealand, imported alien crayfish are a danger to local rivers. The three most widespread American species invasive in Europe are Faxonius limosus, Pacifastacus leniusculus and Procambarus clarkii.[35] Crayfish may spread into different bodies of water because specimens captured for pets in one river are often released into a different catchment. There is a potential for ecological damage when crayfish are introduced into non-native bodies of water: e.g., crayfish plague in Europe, or the introduction of the common yabby (Cherax destructor) into drainages east of the Great Dividing Range in Australia.[62]

أنواع الحارس

The Protivin brewery in the Czech Republic uses crayfish outfitted with sensors to detect any changes in their bodies or pulse activity in order to monitor the purity of the water used in their product. The creatures are kept in a fish tank that is fed with the same local natural source water used in their brewing. If three or more of the crayfish have changes to their pulses, employees know there is a change in the water and examine the parameters.[63]

Scientists also monitor crayfish in the wild in natural bodies of water to study the levels of pollutants there.[63][64][65]

انظر أيضا


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المصادر

  1. ^ Christoph Needon; Johannes Petermann; Peter Scheffel; Bernd Scheibe (1971). Plants and Animals (Pflanzen und Tiere). Leipzig: Urania Verlag.
  2. ^ أ ب ت "crayfish". Oxford English Dictionary (Online ed.). Oxford University Press. قالب:OEDsub
  3. ^ Wedgwood, Hensleigh (1855). "On False Etymologies". Transactions of the Philological Society (6): 65.
  4. ^ C. W. Hart Jr. (1994). "A dictionary of non-scientific names of freshwater crayfishes (Astacoidea and Parastacoidea), including other words and phrases incorporating crayfish names". Smithsonian Contributions to Anthropology. 38 (38): 1–127. doi:10.5479/si.00810223.38.1. hdl:10088/1372. S2CID 86017542.
  5. ^ أ ب Pableaux Johnson. "Mudbug Madness : Crawfish". Bayou Dog. Archived from the original on 19 August 2006. Retrieved 28 August 2006.
  6. ^ Bert Vaux; Scott A. Golder. "Dialect survey". Harvard University. Retrieved 30 September 2006.
  7. ^ "About the International Association of Astacology". Archived from the original on 5 April 2005.
  8. ^ "What Is the Difference Between Walking Legs and Chelipeds in Crayfish?". Pets on Mom.com (in الإنجليزية). Retrieved 12 June 2021.
  9. ^ Wolfe, Joanna M.; Breinholt, Jesse W.; Crandall, Keith A.; Lemmon, Alan R.; Lemmon, Emily Moriarty; Timm, Laura E.; Siddall, Mark E.; Bracken-Grissom, Heather D. (24 April 2019). "A phylogenomic framework, evolutionary timeline and genomic resources for comparative studies of decapod crustaceans". Proceedings of the Royal Society B. 286 (1901). doi:10.1098/rspb.2019.0079. PMC 6501934. PMID 31014217.
  10. ^ أ ب Crandall, Keith A.; De Grave, Sammy (2017). "An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list". Journal of Crustacean Biology. 37 (5): 615–653. doi:10.1093/jcbiol/rux070.
  11. ^ Heather D. Bracken-Grissom; Shane T. Ahyong; Richard D. Wilkinson; Rodney M. Feldmann; Carrie E. Schweitzer; Jesse W. Breinholt; Matthew Bendall; Ferran Palero; Tin-Yam Chan; Darryl L. Felder; Rafael Robles; Ka-Hou Chu; Ling-Ming Tsang; Dohyup Kim; Joel W. Martin; Keith A. Crandall (July 2014). "The Emergence of Lobsters: Phylogenetic Relationships, Morphological Evolution and Divergence Time Comparisons of an Ancient Group (Decapoda: Achelata, Astacidea, Glypheidea, Polychelida)". Systematic Biology. 63 (4): 457–479. doi:10.1093/sysbio/syu008. PMID 24562813.
  12. ^ Horton H. Hobbs Jr. (1974). "Synopsis of the families and genera of crayfishes (Crustacea: Decapoda)". Smithsonian Contributions to Zoology. 164 (164): 1–32. doi:10.5479/si.00810282.164. S2CID 86685246.
  13. ^ Steve Pollock (2005). Eyewitness Ecology. New York, United States: Dorling Kindersley. ISBN 978-0-7894-5581-9.
  14. ^ "The Crawfish – Louisiana's State Crustacean". American Profile. 11 August 2002. Retrieved 25 November 2017.
  15. ^ "Crawfish Louisiana State Crustacean". State of Louisiana-Department of Administration. Retrieved 25 November 2017.
  16. ^ "Crawfish Deeply Rooted in Louisiana Culture". Voice of America. 19 April 2016. Retrieved 25 November 2017.
  17. ^ Gutierrez, C. Paige (1 January 2012). Cajun Foodways. University Press of Mississippi. p. 78. ISBN 9781604736021. Retrieved 25 November 2017.
  18. ^ "Tasmanian Giant Freshwater Lobster (Astacopsis gouldi)". Department of the Environment, Water, Heritage and the Arts. 9 February 2007. Retrieved 16 March 2010.
  19. ^ Fisheries Scientific Committee (2013). "The Murray crayfish – Euastacus armatus as a Vulnerable Species" (PDF). NSW Department of Primary Industries. Archived (PDF) from the original on 1 April 2015. Retrieved 11 March 2019.
  20. ^ Michael P. Masser; David B. Rouse (1997). "Australian Red Claw Crayfish" (PDF). SRAC Publication (244). Archived from the original (PDF) on 13 May 2005.
  21. ^ "Kōura". NIWA. 26 May 2009. Retrieved 18 September 2012.
  22. ^ "Lobsters, rock lobsters and crayfish". Western Australian Museum. Retrieved 30 November 2019.
  23. ^ Harold W. Sims Jr. (1965). "Let's call the spiny lobster "spiny lobster"". Crustaceana. 8 (1): 109–110. doi:10.1163/156854065X00613. JSTOR 20102626.
  24. ^ "Sweet Chilli Crayfish (龙马精神)". mywoklife.com. 13 February 2010.
  25. ^ "FAR OCEAN SEA PRODUCTS (PRIVATE) LIMITED". dollarvietnam.com.
  26. ^ Classic Asian Noodles. Marshall Cavendish. 2007. ISBN 978-9812613356.
  27. ^ Shane T. Ahyong; Darren C. J. Yeo (2007). "Feral populations of the Australian Red-Claw crayfish (Cherax quadricarinatus von Martens) in water supply catchments of Singapore". Biol Invasions. 9 (8): 943–946. doi:10.1007/s10530-007-9094-0.
  28. ^ "European spiny lobster (Palinurus elephas)". The Marine Life Information Network. Archived from the original on 7 April 2016. Retrieved 17 October 2021.
  29. ^ "White-clawed (or Atlantic stream) crayfish (Austropotamobius pallipes) - Special Areas of Conservation". sac.jncc.gov.uk. Retrieved 17 October 2021.
  30. ^ "White-clawed crayfish | Shropshire Wildlife Trust". www.shropshirewildlifetrust.org.uk. Retrieved 17 October 2021.
  31. ^ Alycia L. Rode & Loren E. Babcock (2003). "Phylogeny of fossil and extant freshwater crayfish and some closely related nephropid lobsters". Journal of Crustacean Biology. 23 (2): 418–435. doi:10.1651/0278-0372(2003)023[0418:POFAEF]2.0.CO;2. JSTOR 1549646. S2CID 198968671.
  32. ^ Baucon, A., Ronchi, A., Felletti, F., Neto de Carvalho, C. 2014. Evolution of Crustaceans at the edge of the end-Permian crisis: ichnonetwork analysis of the fluvial succession of Nurra (Permian-Triassic, Sardinia, Italy). Palaeogeography, Palaeoclimatology, Palaeoecology, 410. Abstract available at http://www.tracemaker.com
  33. ^ Emory University (12 February 2008). "Oldest Australian crayfish fossils provide missing evolutionary link". ScienceDaily.
  34. ^ Paul A. Selden; Alison N. Olcott; Matt R. Downen; Dong Ren; Chungkun Shih; Xiaodong Cheng (2019). "The supposed giant spider Mongolarachne chaoyangensis, from the Cretaceous Yixian Formation of China, is a crayfish" (PDF). Palaeoentomology. 2 (5): 515–522. doi:10.11646/palaeoentomology.2.5.15. S2CID 208124459. Archived (PDF) from the original on 2 November 2019.
  35. ^ أ ب James R. Lee (5 December 1998). "TED Case Studies Crayfish Plague #478 European Crayfish Dispute". Archived from the original on 10 January 2009. Retrieved 20 January 2008.
  36. ^ "Nonindigenous Aquatic Species - Pacifastacus leniusculus". Retrieved 6 July 2020.
  37. ^ "A Canadian Scientist Explains How Acid Rain is Still Making its Mark". IISD Experimental Lakes Area. 16 May 2018. Retrieved 6 July 2020.
  38. ^ "Invading Europe's waterways: The crayfish occupation". 19 December 2019.
  39. ^ "Invasive species: Why Britain can't eat its way out of its crayfish problem".
  40. ^ "Global Aquaculture Production: Procambarus clarkii, 1990-2018". FAO Fisheries Division. Food And Agriculture Organization of the United Nations. Retrieved 21 March 2021.
  41. ^ Po Tidhom (2004). "The Crayfish Party". The Swedish Institute. Archived from the original on 4 February 2009. Retrieved 29 January 2006.
  42. ^ "Table 18. Crustacean Sales by Species: 2018 and 2013" (PDF). 2018 Census of Agriculture. USDA, National Agricultural Statistics Service. Archived (PDF) from the original on 19 December 2019. Retrieved 21 March 2021.
  43. ^ Larry W. de la Bretonne Jr. & Robert P. Romaire (1990). "Crawfish production: harvesting, marketing and economics" (PDF). SRAC Publication (242). Archived from the original (PDF) on 12 December 2010.
  44. ^ "1978–2007: Louisiana Summary of Agriculture and Natural Resources" (PDF). Louisiana State University Agricultural Center, Baton Rouge, Louisiana. 2009. Archived from the original (PDF) on 2 April 2012.
  45. ^ "Differences Between Red Swamp Crawfish and White River Crawfish". The Louisiana State University Agricultural Center. Archived from the original on 18 July 2011. Retrieved 25 February 2009.
  46. ^ Lunda, Roman; Roy, Koushik; Dvorak, Petr; Kouba, Antonin; Mraz, Jan (2020). "Recycling biofloc waste as novel protein source for crayfish with special reference to crayfish nutritional standards and growth trajectory". Scientific Reports. 10 (1): 19607. Bibcode:2020NatSR..1019607L. doi:10.1038/s41598-020-76692-0. PMC 7658255. PMID 33177672.
  47. ^ "Kosher defined". Triangle K. Retrieved 1 December 2010.
  48. ^ Meyer-Rochow, Victor Benno (2009). "Food taboos: their origins and purposes". Journal of Ethnobiology and Ethnomedicine. 5–18: 18. doi:10.1186/1746-4269-5-18. PMC 2711054. PMID 19563636.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  49. ^ Web, Animal Diversity (16 September 2002). "Kids' Inquiry of Diverse Species, Orconectes propinquus, northern clearwater crayfish: INFORMATION". BioKIDS. Retrieved 27 July 2018.
  50. ^ Samsel, Jeff (5 August 2005). "5 Great Catfish Baits". Game & Fish. Retrieved 13 February 2021.
  51. ^ "Striped Bass Feeding Facts and Information". Bass Fishing Gurus. 4 March 2015. Retrieved 27 July 2018.
  52. ^ "The Key to Locating Bass, Walleye or Pike". Funny Fishing Tshirts & Fishing Gifts – Fish Face. 25 August 2017. Archived from the original on 27 July 2018. Retrieved 27 July 2018.
  53. ^ Bean, Richard Alden (6 April 2011). "Crayfish: What Better Spring Bait For Bass?". Game & Fish. Retrieved 27 July 2018.
  54. ^ "Fox and Des Plaines Rivers Watershed" (PDF). Critical Trends in Illinois Ecosystems. Illinois Department of Natural Resources. 2001. Archived from the original (PDF) on 27 March 2009. Retrieved 10 February 2009.
  55. ^ Tennessee Aquatic Nuisance Species Task Force (2007). Tennessee Aquatic Nuisance Species Management Plan (PDF). Tennessee Wildlife Resources Agency. Archived (PDF) from the original on 9 September 2008.
  56. ^ "Hawaii Risk Analyses and Management for Dreissenid Mussels" (PDF). US Fish & Wildlife. 2012. p. 3. Archived (PDF) from the original on 30 October 2014. Retrieved 27 July 2018.
  57. ^ "zebra mussel (Dreissena polymorpha) – Species Profile". Nonindigenous Aquatic Species. 16 November 2005. Retrieved 27 July 2018.
  58. ^ J. Thompson; F. Parchaso; A. Alpine; J. Cloern; B. Cole; O. Mace; J. Edmunds; J. Baylosis; S. Luoma; F. Nichols (13 December 2007). "The History and Effects of Exotic Species in San Francisco Bay". United States Geological Survey. Archived from the original on 1 July 2013. Retrieved 10 February 2009.
  59. ^ أ ب abebault (May 2013). "Crayfish Facts". Google. Retrieved 27 July 2018.
  60. ^ "YouTube". YouTube. 12 April 2018. Archived from the original on 30 October 2021. Retrieved 27 July 2018.
  61. ^ Gerald Pottern. "Mexican dwarf orange crayfish, Cambarellus patzcuarensis". Retrieved 13 October 2010.
  62. ^ Coughran, J; Mccormack, R; Daly, G (2009). "Translocation of the Yabby Cherax destructor into eastern drainages of New South Wales, Australia". Australian Zoologist. 35: 100–103. doi:10.7882/AZ.2009.009. Retrieved 10 May 2018.
  63. ^ أ ب Hanrahan, Mark (27 September 2017). "Crayfish staff help Czech brewery keep its water as pure as can be". Reuters TV. Archived from the original on 25 October 2019. Retrieved 25 October 2019.
  64. ^ "Clean Water". Missouri Conservationist Magazine. Vol. 69, no. 11. Missouri Department of Conservation. November 2008. Retrieved 25 October 2019.
  65. ^ Schilderman, P. A. E. L.; Moonen, E. J. C.; Maas, L. M.; Welle, I.; Kleinjans, J. C. S. (1999). "Use of Crayfish in Biomonitoring Studies of Environmental Pollution of the River Meuse". Ecotoxicology and Environmental Safety. 44 (3): 241–252. doi:10.1006/eesa.1999.1827. ISSN 0147-6513. PMID 10581118.

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