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Today adults commonly grow to 20–30 centimetres (8–12 in) in length. In the past however they have been reliably recorded at significantly larger lengths and up to 2 kilograms (4.4 lb) in weight; the Murray crayfish is considered the second largest freshwater crayfish species in the world
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these include a minimum size, bag and possession limits, and a ban on taking females with eggs. Further there is a limited season in which the species can be taken (start of May to the end of August). Murray crayfish are also threatened by habitat loss, with a 91% decline in the abundance of this
277:, all of which are covered in short robust spikes. In small individuals, the claws are green and yellow. The crayfish begin to breed when they are 15–20 cm (6–8 in) long, which takes between 6 and 9 years. When the crayfish has reached sexual maturity the females lay 500 to 1,000
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species recorded in one stream (Goobarragandra River) over a six-year period when there was a halving in the availability of their preferred boulder habitats due to sedimentation. Murray crayfish are listed as
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Rivers as well as many of their tributaries. Murray crayfish are also known as "Murray River crayfish", "Murray crays", "freshwater crays", "spiny freshwater crays", "spinies" and in the
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and several upland impoundments, and to relatively low altitudes in the Murray and
Murrumbidgee Rivers; historically its distribution extended throughout the southern
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Mae M. Noble & Christopher J. Fulton (2017). "Habitat specialization and sensitivity to change in a threatened crayfish occupying upland streams".
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species, Murray crayfish prefer cool, fast-flowing water, deep pools, boulder-rich streambeds, and areas with extensive riparian vegetation.
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until they hatch in summer. Murray crayfish feed predominantly on decaying aquatic plant matter but will also eat dead animals.
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and as a result there are many restrictions in place for recreational fishers, all of which vary from state to state. In
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The range of the Murray crayfish extends to over 700 m above sea level in large and small upland
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338:. Lately, though, the numbers have increased thanks to the efforts of scientists.
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495:"Iconic Murray crayfish to be brought back to SA from virtual extinction"
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Alves, N.; Coughran, J.; Furse, J.; Lawler, S. (2010).
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426:. Environment ACT. Action Plan No. 14. Archived from
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in late autumn; the eggs are carried on the female's
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235:. The Murray crayfish has the largest geographic
382:10.2305/IUCN.UK.2010-3.RLTS.T8136A12889370.en
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245:crayfish in Australia, being found in the
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261:they are simply known as "lobsters".
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801:IUCN Red List data deficient species
806:Freshwater crustaceans of Australia
368:IUCN Red List of Threatened Species
269:. Murray crayfish have large white
267:Tasmanian giant freshwater crayfish
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816:Crustaceans described in 1866
811:Vulnerable fauna of Australia
309:The species is threatened by
332:Australian Capital Territory
273:and a dark olive/grey/black
231:that belongs to the family
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70:Scientific classification
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421:"Murray River crayfish"
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433:on December 26, 2005
375:: e.T8136A12889370.
294:Murray–Darling basin
471:2017ACMFE..27...90N
257:region of southern
222:freshwater crayfish
40:Conservation status
16:Species of crayfish
520:) video on Youtube
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693:Open Tree of Life
581:euastacus-armatus
568:Euastacus_armatus
539:Euastacus armatus
531:Taxon identifiers
518:Euastacus armatus
516:Murray Crayfish (
361:Euastacus armatus
213:Euastacus armatus
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189:Euastacus armatus
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336:South Australia
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324:Data Deficient
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435:. Retrieved
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386:. Retrieved
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251:Murrumbidgee
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233:Parastacidae
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147:Parastacidae
117:Malacostraca
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628:iNaturalist
388:19 November
311:overfishing
300:. Like all
255:Wagga Wagga
197:Von Martens
137:Pleocyemata
795:Categories
738:Q109653828
342:References
265:after the
133:Suborder:
107:Arthropoda
821:Euastacus
303:Euastacus
242:Euastacus
229:Australia
165:Species:
158:Euastacus
93:Kingdom:
87:Eukaryota
732:Wikidata
646:10542447
554:Q5500461
548:Wikidata
437:July 25,
319:Victoria
283:pleopods
275:carapace
143:Family:
127:Decapoda
103:Phylum:
97:Animalia
83:Domain:
60:IUCN 3.1
778:1134033
765:4644054
659:1134026
620:4648497
467:Bibcode
326:on the
298:Mildura
290:streams
225:endemic
218:species
216:, is a
199:, 1866)
153:Genus:
123:Order:
113:Class:
58: (
711:885624
698:872798
633:100611
576:ARKive
247:Murray
752:7R7BN
706:WoRMS
685:72420
641:IRMNG
607:7TLS6
594:24287
431:(PDF)
424:(PDF)
271:claws
237:range
773:ITIS
760:GBIF
680:NCBI
672:8136
667:IUCN
654:ITIS
615:GBIF
589:BOLD
439:2011
390:2021
373:2010
317:and
279:eggs
249:and
206:The
747:CoL
602:CoL
563:AFD
475:doi
377:doi
227:to
220:of
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195:(
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
