| 词条 | Cherax quadricarinatus |
| 释义 |
| name = Cherax Quaricaturus | status = LC | status_system = IUCN3.1 | image = CheraxQuadricarinatus.JPG | regnum = Animalia | phylum = Arthropoda | subphylum = Crustacea | classis = Malacostraca | ordo = Decapoda | familia = Parastacidae | genus = Cherax | species = C. quadricarinatus | binomial = Cherax quadricarinatus | binomial_authority = (Von Martens, 1868) }} Cherax quadricarinatus (known by several common names, including Australian red claw crayfish, Queensland red claw, redclaw, tropical blue crayfish, freshwater blueclaw crayfish) is an Australian freshwater crayfish. Distribution and ecologyC. quadricarinatus is found in permanent freshwater streams, billabongs and lakes on the north coast of the Northern Territory and northeastern Queensland.[1] Populations are also found in Papua New Guinea. Through translocation by humans, the range has spread down to southern Queensland and into the far north of West Australia. C. quadricarinatus is considered an invasive species, and has established feral populations in South Africa, Mexico, Jamaica, Puerto Rico,[1] Indonesia,[2] Zambia[3] and Singapore.[4]This tropical crustacean is very tolerant of environmental changes, and is primarily a detritivore. DescriptionThe colour of C. quadricarinatus ranges from dark brown to blue-green and adult males have a distinct red patch on the outer margin of the claws.[5] They can reach up to {{convert|600|g}}.[5] Life cycleFemales, which are smaller than males, spawn 300–800 olive-green eggs per brood,[6] which are fertilised from a spermatophore which the male has deposited at the base of her walking legs (pereiopods) during mating. Fertilised eggs are affixed to the female's pleopods, situated on the underside of the tail. Incubation takes approximately six weeks and the newly hatched juveniles rapidly become independent.[6] AquacultureC. quadricarinatus is farmed commercially in Queensland and the Northern Territory, and is harvested at between {{convert|35|-|130|g}}.[6] C. quadricarinatus is a sought-after product with a delicate crustacean flavour. They are both non-aggressive in nature as well as highly fertile, and can therefore be bred in large numbers in captivity. Time to sexual maturity, and therefore harvest size, is somewhere between six and twelve months in optimally farmed conditions. References1. ^1 {{Cite journal | author = Austin, C.M. | author2 = Jones, C. | author3 = Wingfield, M. | last-author-amp = yes | title = Cherax quadricarinatus | journal = The IUCN Red List of Threatened Species | volume = 2010 | page = e.T4621A11041003 | date = 2010 | doi = 10.2305/IUCN.UK.2010-3.RLTS.T4621A11041003.en }} 2. ^{{cite journal|last1=Patoka|first1=Jiří|last2=Wardiatno|first2=Yusli|last3=Yonvitner|last4=Kuříková|first4=Pavlína|last5=Petrtýl|first5=Miloslav|last6=Kalous|first6=Lukáš|title=Cherax quadricarinatus (von Martens) has invaded Indonesian territory west of the Wallace Line: evidences from Java|journal=Knowledge and Management of Aquatic Ecosystems|volume=417|issue=417|year=2016|pages=39|doi=10.1051/kmae/2016026}} 3. ^{{cite journal|last1=Nakayama|first1=Shouta M. M.|last2=Ikenaka|first2=Yoshinori|last3=Muzandu|first3=Kaampwe|last4=Choongo|first4=Kennedy|last5=Oroszlany|first5=Balazs|last6=Teraoka|first6=Hiroki|last7=Mizuno|first7=Naoharu|last8=Ishizuka|first8=Mayumi|title=Heavy Metal Accumulation in Lake Sediments, Fish (Oreochromis niloticus and Serranochromis thumbergi), and Crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia|journal=Archives of Environmental Contamination and Toxicology|volume=59|issue=2|year=2010|pages=291–300|issn=0090-4341|doi=10.1007/s00244-010-9483-8|pmid=20162262}} 4. ^{{cite journal |doi=10.1007/s10530-007-9094-0 |title=Feral populations of the Australian Red-Claw crayfish (Cherax quadricarinatus von Martens) |author=Shane T. Ahyong |author2=Darren C. J. Yeo |journal=Biol Invasions |volume=9 |issue=8 |year=2007 |pages=943–946}} 5. ^1 {{cite web |url=http://www.dpi.qld.gov.au/28_14696.htm |title=Redclaw (Primary Industry & Fisheries, Queensland) |author=Brendan Johnson |date=June 10, 2010 |accessdate=October 4, 2010 |publisher=Department of Employment, Economic Development and Innovation, Government of Queensland |archive-url=https://web.archive.org/web/20100922121802/http://www.dpi.qld.gov.au/28_14696.htm# |archive-date=2010-09-22 |dead-url=yes |df= }} 6. ^1 2 {{cite web |url=http://www.dpi.qld.gov.au/28_13348.htm |title=Redclaw (Primary Industry & Fisheries, Queensland) |author=John Dexter |date=April 8, 2009 |accessdate=October 4, 2010 |publisher=Department of Employment, Economic Development and Innovation, Government of Queensland |archive-url=https://web.archive.org/web/20110312175056/http://www.dpi.qld.gov.au/28_13348.htm# |archive-date=2011-03-12 |dead-url=yes |df= }} External links
3 : Parastacidae|Freshwater crustaceans of Australia|Crustaceans described in 1868 |
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