Pointy-nosed blue chimaera: Difference between revisions
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{{Short description|Species of cartilaginous fish}} |
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{{Taxobox |
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{{Speciesbox |
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| name = Pointynose blue chimaera |
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| image = Hydrolagus trolli.jpg |
| image = Hydrolagus trolli.jpg |
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| status = |
| status = LC |
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| status_system = IUCN3.1 |
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| status_ref = <ref name="iucn status 16 November 2021">{{cite iucn |author=Compagno, L.J.V. |author2=Dagit, D.D. |date=2015 |title=''Hydrolagus trolli'' |volume=2015 |page=e.T60197A70709551 |doi=10.2305/IUCN.UK.2015-4.RLTS.T60197A70709551.en |access-date=16 November 2021}}</ref> |
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| regnum = [[Animalia]] |
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| genus = Hydrolagus |
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| classis = [[Chondrichthyes]] |
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| ordo = [[Chimaeriformes]] |
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| familia = [[Chimaeridae]] |
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}} |
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| genus = ''[[Hydrolagus]]'' |
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| binomial = ''Hydrolagus trolli'' |
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The '''pointy-nosed blue chimaera''' or '''Ray Troll's chimaera'''<ref>{{cite news|title = Ratfish named after Ketchikan artist Ray Troll | newspaper=[[Ketchikan Daily News]]| date = November 8, 2002 | url =http://www.peninsulaclarion.com/stories/110802/ala_110802ala0020001.shtml | accessdate = 2009-02-01}}</ref> (''Hydrolagus trolli'') is a species of [[fish]] in the [[Chimaeridae]] family found near [[New Caledonia]], [[New Zealand]], and [[South Africa]]. Its natural [[habitat]] is open [[sea]]s. It is threatened by [[habitat loss]].<ref>Compagno, L.J.V. & Dagit, D.D. 2005. [http://www.iucnredlist.org/search/details.php/60197/all ''Hydrolagus trolli'']. [http://www.iucnredlist.org 2006 IUCN Red List of Threatened Species. ] Downloaded on 3 August 2007.</ref> |
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The '''pointy-nosed blue chimaera''' (''Hydrolagus trolli''), also known as the '''pointy-nosed blue ratfish''', '''Ray Troll's chimaera''' or '''abyssal ghostshark''', is a species of [[deep-sea fish]] in the family [[Chimaeridae]].<ref name="iucn status 16 November 2021" /><ref name=CoF/><ref name=FishBase/><ref name="Monterey Bay Aquarium"/><ref name="Reardon">{{cite web |url=http://fishesofaustralia.net.au/home/species/2672 |title=Abyssal Whitefin, Hydrolagus trolli Didier & Séret |origyear=2002 |last1=Reardon |first1=M.B. |last2=Bray |first2=D.J |year=2018 |publisher=Fishes of Australia |accessdate=March 30, 2019}}</ref> |
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It was also seen in waters near [[California]] and [[Hawaii]], alive, in 2009. As with many other deep sea species, its distribution likely covers much of the globe, but is poorly known.<ref>{{cite news |first1=Jason |last1=Bittel| url = http://news.nationalgeographic.com/2016/12/pointy-nosed-blue-chimaeras-ghost-sharks/ | title = Deep-Sea Ghost Shark Filmed Alive In Ocean For First Time |publisher=[[National Geographic]] | accessdate = 2016-12-16 | date = December 15, 2016 }}</ref> |
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==Etymology== |
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The [[Specific name (zoology)|specific name]] ''trolli'' honors [[Ray Troll]], an American artist who has featured chimaeras in his art.<ref name="Monterey Bay Aquarium"/><ref>{{cite news |title = Ratfish named after Ketchikan artist Ray Troll |newspaper = [[Ketchikan Daily News]] |date = November 8, 2002 |url = http://www.peninsulaclarion.com/stories/110802/ala_110802ala0020001.shtml |accessdate = 2009-02-01 |archive-url = https://web.archive.org/web/20141025042118/http://peninsulaclarion.com/stories/110802/ala_110802ala0020001.shtml |archive-date = October 25, 2014 |url-status = dead }}</ref> |
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==Distribution and habitat== |
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This species is found in the [[Pacific Ocean|Pacific]] and [[Southern Ocean]]s, with records from near [[New Caledonia]], [[New Zealand]], and southern [[Australia]]; records from South Africa refer to other species. It is a deep-water species that has been recorded on deep continental and insular slopes at depths between {{convert|610|and|2000|m}}, but more commonly below {{convert|1000|m}}.<ref name="iucn status 16 November 2021" /> |
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Specimens provisionally assigned to this species have also been seen in waters near [[California]] and [[Hawaii]], alive, in 2009. As with many other deep-sea species, its distribution likely covers much of the globe, but is poorly known. However, this species of Chimaeridae was the first to have been captured on film, leading to further insight on it.<ref name="Monterey Bay Aquarium"/> |
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<ref>{{cite news |first1=Jason |last1=Bittel| url = http://news.nationalgeographic.com/2016/12/pointy-nosed-blue-chimaeras-ghost-sharks/ | archive-url = https://web.archive.org/web/20161216210750/http://news.nationalgeographic.com/2016/12/pointy-nosed-blue-chimaeras-ghost-sharks/ | url-status = dead | archive-date = December 16, 2016 | title = Deep-Sea Ghost Shark Filmed Alive In Ocean For First Time |publisher=[[National Geographic Society|National Geographic]] | accessdate = 2016-12-16 | date = December 15, 2016 }}</ref><ref>{{cite news |url=https://www.yahoo.com/news/researchers-may-found-elusive-ghost-190003349.html |title=Researchers May Have Found Elusive 'Ghost Shark' |first1=Greg |last1=Price |newspaper=[[International Business Times]] |via=[[Yahoo]] |accessdate=December 16, 2016}}</ref> |
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==Description== |
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The body has distinctive blue-gray coloration.<ref name="iucn status 16 November 2021" /><ref name=FishBase/> A dark line is seen around the [[Orbit (anatomy)|orbit]], as well as dark shadowing along edges of [[lateral line]] canals. The snout is pointed. It grows to {{convert|120|cm|abbr=on}} [[Fish measurement|total length]].<ref name=FishBase/> It also has a [[venomous]] spine in front of its dorsal fin, which is used in defense.<ref>[https://www.leisurepro.com/blog/explore-the-blue/mbari-scientists-catch-elusive-ghost-shark-film Ghost Shark(Hydrolagus trolli)]/</ref> |
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Females mature around {{convert|55|cm|abbr=on}} in body length and males at {{convert|60|-|65|cm|abbr=on}}.<ref name="iucn status 16 November 2021" /> The species is [[oviparous]].<ref name="iucn status 16 November 2021" /><ref name=FishBase/> |
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==Fisheries== |
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The species has no commercial value, but it occurs as [[bycatch]] in fisheries with deep-water benthic trawls. It might also be bycatch in (illegal) [[Patagonian toothfish]] fisheries. However, most of the habitat of this species is deeper than where deep-water fisheries typically operate.<ref name="iucn status 16 November 2021" /> |
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== Conservation status == |
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In June 2018 the New Zealand [[Department of Conservation (New Zealand)|Department of Conservation]] classified the pointy-nosed blue chimaera as "Not Threatened" with the qualifier "Secure Overseas" under the [[New Zealand Threat Classification System]].<ref>{{Cite book|url=https://www.doc.govt.nz/globalassets/documents/science-and-technical/nztcs23entire.pdf|title=Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016|last=Duffy|first=Clinton A. J.|last2=Francis|first2=Malcolm|last3=Dunn|first3=M. R.|last4=Finucci|first4=Brit|last5=Ford|first5=Richard|last6=Hitchmough|first6=Rod|last7=Rolfe|first7=Jeremy|publisher=Department of Conservation|year=2018|isbn=9781988514628|location=Wellington, New Zealand|pages=10|oclc=1042901090}}</ref> |
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==References== |
==References== |
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{{Reflist|30em|refs= |
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{{reflist}} |
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<ref name=CoF>{{cite web |url=http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?spid=67227 |title=Catalog of Fishes |editor1=Eschmeyer, W. N. |editor2=R. Fricke |editor3=R. van der Laan |date=30 June 2017 |publisher=California Academy of Sciences |accessdate=5 July 2017}}</ref> |
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<ref name=FishBase>{{FishBase |genus=Hydrolagus |species=trolli |month=February |year=2017}}</ref> |
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| ⚫ | <ref name="Monterey Bay Aquarium">{{cite web |url=https://www.youtube.com/watch?v=CV0D6G4CTio |archive-url=https://ghostarchive.org/varchive/youtube/20211221/CV0D6G4CTio |archive-date=2021-12-21 |url-status=live|title=The pointy-nosed blue ratfish Hydrolagus trolli |publisher=[[Monterey Bay Aquarium]] |date=26 October 2016 |accessdate=December 16, 2016 |format=Video |via=[[YouTube]]}}{{cbignore}}</ref> |
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==External links== |
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}} |
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{{ |
{{Wikispecies|Hydrolagus trolli}} |
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{{Taxonbar|from=Q1610536}} |
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{{Chondrichthyes-stub}} |
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[[Category:Fish of New Caledonia]] |
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[[Category:Marine fish of New Zealand]] |
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[[Category:Taxonomy articles created by Polbot]] |
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Latest revision as of 15:49, 2 December 2023
| Pointy-nosed blue chimaera | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | Chimaeriformes |
| Family: | Chimaeridae |
| Genus: | Hydrolagus |
| Species: | H. trolli
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| Binomial name | |
| Hydrolagus trolli | |
The pointy-nosed blue chimaera (Hydrolagus trolli), also known as the pointy-nosed blue ratfish, Ray Troll's chimaera or abyssal ghostshark, is a species of deep-sea fish in the family Chimaeridae.[1][2][3][4][5]
Etymology
[edit]The specific name trolli honors Ray Troll, an American artist who has featured chimaeras in his art.[4][6]
Distribution and habitat
[edit]This species is found in the Pacific and Southern Oceans, with records from near New Caledonia, New Zealand, and southern Australia; records from South Africa refer to other species. It is a deep-water species that has been recorded on deep continental and insular slopes at depths between 610 and 2,000 metres (2,000 and 6,560 ft), but more commonly below 1,000 metres (3,300 ft).[1]
Specimens provisionally assigned to this species have also been seen in waters near California and Hawaii, alive, in 2009. As with many other deep-sea species, its distribution likely covers much of the globe, but is poorly known. However, this species of Chimaeridae was the first to have been captured on film, leading to further insight on it.[4] [7][8]
Description
[edit]The body has distinctive blue-gray coloration.[1][3] A dark line is seen around the orbit, as well as dark shadowing along edges of lateral line canals. The snout is pointed. It grows to 120 cm (47 in) total length.[3] It also has a venomous spine in front of its dorsal fin, which is used in defense.[9]
Females mature around 55 cm (22 in) in body length and males at 60–65 cm (24–26 in).[1] The species is oviparous.[1][3]
Fisheries
[edit]The species has no commercial value, but it occurs as bycatch in fisheries with deep-water benthic trawls. It might also be bycatch in (illegal) Patagonian toothfish fisheries. However, most of the habitat of this species is deeper than where deep-water fisheries typically operate.[1]
Conservation status
[edit]In June 2018 the New Zealand Department of Conservation classified the pointy-nosed blue chimaera as "Not Threatened" with the qualifier "Secure Overseas" under the New Zealand Threat Classification System.[10]
References
[edit]- ^ a b c d e f g Compagno, L.J.V.; Dagit, D.D. (2015). "Hydrolagus trolli". IUCN Red List of Threatened Species. 2015: e.T60197A70709551. doi:10.2305/IUCN.UK.2015-4.RLTS.T60197A70709551.en. Retrieved 16 November 2021.
- ^ Eschmeyer, W. N.; R. Fricke; R. van der Laan, eds. (30 June 2017). "Catalog of Fishes". California Academy of Sciences. Retrieved 5 July 2017.
- ^ a b c d Froese, Rainer; Pauly, Daniel (eds.). "Hydrolagus trolli". FishBase. February 2017 version.
- ^ a b c "The pointy-nosed blue ratfish Hydrolagus trolli" (Video). Monterey Bay Aquarium. 26 October 2016. Archived from the original on 2021-12-21. Retrieved December 16, 2016 – via YouTube.
- ^ Reardon, M.B.; Bray, D.J (2018) [2002]. "Abyssal Whitefin, Hydrolagus trolli Didier & Séret". Fishes of Australia. Retrieved March 30, 2019.
- ^ "Ratfish named after Ketchikan artist Ray Troll". Ketchikan Daily News. November 8, 2002. Archived from the original on October 25, 2014. Retrieved 2009-02-01.
- ^ Bittel, Jason (December 15, 2016). "Deep-Sea Ghost Shark Filmed Alive In Ocean For First Time". National Geographic. Archived from the original on December 16, 2016. Retrieved 2016-12-16.
- ^ Price, Greg. "Researchers May Have Found Elusive 'Ghost Shark'". International Business Times. Retrieved December 16, 2016 – via Yahoo.
- ^ Ghost Shark(Hydrolagus trolli)/
- ^ Duffy, Clinton A. J.; Francis, Malcolm; Dunn, M. R.; Finucci, Brit; Ford, Richard; Hitchmough, Rod; Rolfe, Jeremy (2018). Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016 (PDF). Wellington, New Zealand: Department of Conservation. p. 10. ISBN 9781988514628. OCLC 1042901090.
Wikispecies has information related to Hydrolagus trolli.