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词条 Glyptonotus antarcticus
释义

  1. Description

  2. Distribution and habitat

  3. Biology

  4. Research

  5. References

{{Italic title}}{{Taxobox
| name = Glyptonotus antarcticus
| image = Isopod, Glyptonotus antarcticus.jpg
| regnum = Animalia
| phylum = Arthropoda
| classis = Malacostraca
| ordo = Isopoda
| subordo = Valvifera
| familia = Chaetiliidae
| genus = Glyptonotus
| species = G. antarcticus
| binomial = Glyptonotus antarcticus
| binomial_authority = Eights, 1852[1]
}}Glyptonotus antarcticus is a benthic marine isopod crustacean in the suborder Valvifera. It was first described by James Eights in 1852 and the type locality is the South Shetland Islands.[1]

Description

{{ external media
| float = left
| width =
| image1 = Photograph of Glyptonotus antarcticus (Yale Peabody Museum).[2]
}}Glyptonotus antarcticus can grow to a maximum length of {{convert|9|cm|1|abbr=on}}[3] which is large for an isopod, most of which are between {{convert|5|and|15|mm|1|abbr=on}} in length.[4] It has two pairs of compound eyes, a large pair on the dorsal surface and a smaller pair on the ventral surface. It is thought that the latter are useful when the animal is swimming, which it does in an upside-down position.[5] With the exception of the eyes, certain mouthparts and feet, the whole surface of the animal has minute cuticular outgrowths of feathery hairs and knobbly scales. It is thought that these may help to prevent attachment of Foraminifera and marine larval organisms on the body surface.[6]

Distribution and habitat

Glyptonotus antarcticus is native to the coasts of Antarctica, where it occurs in large numbers.[3] It lives on the seabed at depths ranging from the intertidal zone down to about 580 m (1900 ft).[1]

Biology

Glyptonotus antarcticus is a carnivore and scavenger and is often caught in baited traps on the seabed. It is an opportunistic predator with a mixed diet which includes a high proportion of echinoderms. That the available food supply may be fairly constant is shown by the fact that it breeds at any time of year.[7]

Research

Given its abundance and the fact that it is relatively easy to keep in aquaria, Glyptonotus antarcticus has become an important model organism used as a research object in ecological, biochemical and physiological studies.[3][8][9] A 2005 genetic study suggested that Glyptonotus antarcticus may in fact represent several distinct species.[3]

References

1. ^{{cite WoRMS |author=Gary Poore; Marilyn Schotte |year=2012 |title=Glyptonotus antarcticus |db=Isopod |id=174803 |accessdate=2014-03-30}}
2. ^{{cite web | url = http://photos.yale.edu/directory/dir_single_collection.php?collection_id=76 | title = Peabody Museum of Natural History, Division of Invertebrate Zoology Collections | publisher = Yale University}}
3. ^{{cite journal |author1=Held, Christoph |author2=Wagele, Johann-Wolfgang |year=2005 |title=Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda: Valvifera: Chaetiliidae) |journal=Scientia Marina |volume=69 |issue=suppl. 2 |pages=175–181 |url=http://epic.awi.de/14259/1/Hel2005j.pdf |doi=10.3989/scimar.2005.69s2175}}
4. ^{{cite book |title=Invertebrate Zoology, 7th edition |last1=Ruppert |first1=Edward E. |last2=Fox |first2=Richard, S. |last3=Barnes |first3=Robert D. |year=2004 |publisher=Cengage Learning |isbn=978-81-315-0104-7 |page=662 }}
5. ^{{cite journal |author=Meyer-Rochow, V. B. |year=1982 |title=The Divided Eye of the Isopod Glyptonotus antarcticus: Effects of Unilateral Dark Adaptation and Temperature Elevation |journal=Proceedings of the Royal Society B |volume=215 |issue=1201 |pages=433–450 |doi=10.1098/rspb.1982.0052 }}
6. ^{{cite journal |author=Meyer-Rochow, V. B. |year=1980 |title=Cuticular surface structures in Glyptonotus antarcticus — a marine isopod from the Ross Sea (Antarctica) |journal=Zoomorphologie |volume=94 |issue=2 |pages=209–216 |doi=10.1007/BF01081935 }}
7. ^{{cite journal |author=Clarke, A. |year=1979 |title=Assimilation efficiency of the Antarctic marine isopod Glyptonotus antarcticus |journal=Marine Biology |volume=52 |issue=2 |pages=157–160 |doi=10.1007/BF00390423 }}
8. ^{{cite journal |author1=Leese, Florian |author2=Mayer, Christoph |author3=Held, Christoph |year=2008 |title=Isolation of microsatellites from unknown genomes using known genomes as enrichment templates |journal=Limnology and Oceanography: Methods |volume=6 |pages=412–426 |url=http://www.aslo.org/lomethods/free/2008/0412.pdf |doi=10.4319/lom.2008.6.412}}
9. ^{{cite journal |author1=Römisch, Karin |author2=Matheson, Tom |year=2003 |title=Cell biology in the Antarctic: studying life in the freezer |journal=Nature Cell Biology |volume= 5|issue=1 |pages=3–5 |url=http://www2.le.ac.uk/departments/biology/research/neuroscience/matheson-neurobiology/images/publications/Roemisch_Matheson_NatureCellBiology_2003.pdf |doi=10.1038/ncb0103-3 |pmid=12511880}}
{{Taxonbar|from=Q2239015}}

2 : Valvifera|Crustaceans described in 1852

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