Overview
Distribution
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Kylin, H. (1956). Die Gattungen der Rhodophyceen. C.W.K. Gleerup: Lund, Sweden. xv, 673 pp.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=24
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Mauchline, J. and Fisher, L.R. (1969) The Biology of Euphausiids. Advances in Marine Biology 7: 1-454
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=10060
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John DD (1936) The southern species of the genus Euphausia. Discovery Reports 14: 193-324
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=10061
© WoRMS for SMEBD
Source:
World Register of Marine Species
Trusted
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Siegel V, De Broyer C, Clarke A, Koubbi P, Pakhomov E, Scott F, Vanden Berghe W and Danis B (Editors). The SCAR-MarBIN Register of Antarctic Marine Species (RAMS): Euphausiacea, [date accessed]. World Wide Web electronic publication.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=10068
© WoRMS for SMEBD
Source:
World Register of Marine Species
Trusted
Ecology
Habitat
Water temperature and chemistry ranges based on 132 samples.
Environmental ranges
Depth range (m): 0 - 800
Temperature range (°C): -1.901 - 2.290
Nitrate (umol/L): 21.839 - 35.828
Salinity (PPS): 33.401 - 34.719
Oxygen (ml/l): 3.766 - 8.072
Phosphate (umol/l): 1.189 - 2.480
Silicate (umol/l): 21.227 - 110.733
Graphical representation
Depth range (m): 0 - 800
Temperature range (°C): -1.901 - 2.290
Nitrate (umol/L): 21.839 - 35.828
Salinity (PPS): 33.401 - 34.719
Oxygen (ml/l): 3.766 - 8.072
Phosphate (umol/l): 1.189 - 2.480
Silicate (umol/l): 21.227 - 110.733
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
Trusted
Associations
Known predators
Trematomus borchgrevinki
Pleurogramma antarctica
Cephalopoda
Cetacea
Lobodon carcinophagus
Spheniscidae
Procellariidae
Leptonychotes weddellii
Hydrurga leptonyx
Based on studies in:
Antarctic (Estuarine)
This list may not be complete but is based on published studies.
- G. A. Knox, Antarctic marine ecosystems. In: Antarctic Ecology, M. W. Holdgate, Ed. (Academic Press, New York, 1970) 1:69-96, from p. 87.
© SPIRE project
Source:
SPIRE
Trusted
Known prey organisms
microalgae
Based on studies in:
Antarctic (Estuarine)
This list may not be complete but is based on published studies.
- G. A. Knox, Antarctic marine ecosystems. In: Antarctic Ecology, M. W. Holdgate, Ed. (Academic Press, New York, 1970) 1:69-96, from p. 87.
© SPIRE project
Source:
SPIRE
Trusted
Molecular Biology and Genetics
Molecular Biology
Barcode data: Euphausia crystallorophias
There are 48 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
© Barcode of Life Data Systems
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Statistics of barcoding coverage: Euphausia crystallorophias
Public Records: 25
Specimens with Barcodes: 31
Species With Barcodes: 1
© Barcode of Life Data Systems
Trusted
© Ocean Genome Legacy
Source:
Ocean Genome Resource
Trusted
Wikipedia
Euphausia crystallorophias
Euphausia crystallorophias is a species of krill, sometimes called ice krill,[1] crystal krill,[2] or Antarctic coastal krill.[2] It lives in the coastal waters around Antarctica, further south than any other species of krill.[2] The specimens for the species' original description were collected through holes cut in the ice by Robert Falcon Scott's Discovery Expedition,[1] several thousand having been donated by Thomas Vere Hodgson.[3]
Contents |
Description
Adults of Euphausia crystallorophias are smaller than those of Euphausia superba, reaching a length of 23–35 millimetres (0.91–1.4 in); they can be distinguished from young E. superba by the large size of the eyes, and by the long, sharply-pointed rostrum.[4]
Distribution
E. crystallorophias is found around the coasts of Antarctica, replacing the more oceanic Euphausia superba at latitudes above 74° south.[5] It is usually found at depths of up to 350–600 metres (1,150–2,000 ft), but has occasionally been found as deep as 4,000 metres (13,000 ft).[1]
Ecology
E. crystallorophias feeds on bacteria, diatoms, detritus and other microorganisms, including the algae that form on the underside of sea ice, and is in turn an important food source for fish, whales and penguins,[2] especially minke whales, Weddell seals, Adelie penguins, and the Antarctic silverfish.[1] This makes it arguably the most important link in the coastal Antarctic food chain between the primary producers and the macrofauna.[2] Unlike most other krill species, the eggs of E. crystallorophias are neutrally buoyant, meaning that the eggs do not sink, and the hatchling larvae do not have to swim back to the more productive, shallower waters; however, since this means both life stages inhabit the same depths, it is not known how the larvae avoid being eaten by the adults.[6]
References
| External identifiers for Euphausia crystallorophias | |
|---|---|
| Encyclopedia of Life | 509402 |
| ITIS | 95520 |
| NCBI | 48141 |
| WoRMS | 23621 |
- ^ a b c d Peter Bruggeman. "Ice krill Euphausia crystallorophias". Underwater Field Guide to Ross Island & McMurdo Sound, Antarctica.
- ^ a b c d e S. N. Jarman, N. G. Elliott, S. Nicol & A McMinn (2002). "Genetic differentiation in the Antarctic coastal krill Euphausia crystallorophias". Heredity 88 (4): 280–287. doi:10.1038/sj.hdy.6800041. PMID 11920136.
- ^ E. W. L. Holt & W. M. Tattersall (1906). "Preliminary Notice of the Schizopoda collected by H. M. S. 'Discovery' in the Antarctic Region". The Annals and Magazine of Natural History, 7th series 17 (97): 1–11. doi:10.1080/00222930608562484.
- ^ "Euphausia crystallorophias". Euphausiids of the World Ocean. Marine Species Identification Portal. Retrieved January 12, 2010.
- ^ Antonello Sala, Massimo Azzali & Aniello Russo (2002). "Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic Expedition (January–February 2000)". Scientia Marina 66 (2): 123–133. doi:10.3989/scimar.2002.66n2123.
- ^ Susan A. Harrington & P. G. Thomas (1987). "Observations on spawning by Euphausia crystallorophias from waters adjacent to Enderby Land (East Antarctica) and speculations on the early ontogenetic ecology of neritic euphausiids". Polar Biology 7 (2): 93–95. doi:10.1007/BF00570446.
Source:
Wikipedia
Unreviewed
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