Overview

Comprehensive Description

Biology

A subarctic shelled pteropod of Atlantic arctic waters
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Foot modified into a pair of large pad-shapped lobes; Body often darkly pigmented; Left coiled shell with high spire; 6 to 9 transparent, striated shell whorls; Two subspecies occur, with Limacina retroversa retroversa occuring in the North Atlantic, within which 2 forma retroversa and balea are recognized
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Distribution

Bay of Fundy, Belgian Exclusive Economic Zone, Cape Verde, Caribbean Sea, Cuba, European waters (ERMS scope), Greek Exclusive Economic Zone, Gulf of Maine, Gulf of St. Lawrence, North Atlantic, North West Atlantic, United Kingdom Exclusive Economic Zone, West Coast of Norway
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Arctic seas to Cape Cod, Massachusetts
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Ecology

Habitat

upper epipelagic and glacial
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Depth range based on 909 specimens in 1 taxon.
Water temperature and chemistry ranges based on 763 samples.

Environmental ranges
  Depth range (m): 0 - 3848
  Temperature range (°C): -0.746 - 18.695
  Nitrate (umol/L): 0.496 - 24.188
  Salinity (PPS): 30.843 - 38.757
  Oxygen (ml/l): 4.148 - 7.833
  Phosphate (umol/l): 0.079 - 1.819
  Silicate (umol/l): 0.791 - 18.849

Graphical representation

Depth range (m): 0 - 3848

Temperature range (°C): -0.746 - 18.695

Nitrate (umol/L): 0.496 - 24.188

Salinity (PPS): 30.843 - 38.757

Oxygen (ml/l): 4.148 - 7.833

Phosphate (umol/l): 0.079 - 1.819

Silicate (umol/l): 0.791 - 18.849
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Subpolar North Alantic, advected into Barents Sea, Icelandic and Greenlandic waters; Bipolar; Epipelagic (shallow dwelling); Often found in swarms
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Trophic Strategy

Mucus nets are produced on foot-wings to trap phytoplankton and small particles; Net is periodically eaten to acquire the food stuck to it; Animals must regularly swim upward to offset their sinking
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Life History and Behavior

Life Cycle

protandrous hermaphrodite (males first, then females later); Spermatophores used for sperm transfer; Eggs are released in ribbons during spring and summer spring that hatch into ciliated veligers; Generation times thought to be 1 year in the arctic and perhaps 2 per year in the subarctic
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Limacina retroversa

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 6
Species With Barcodes: 1
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Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:9Public Records:0
Specimens with Sequences:6Public Species:0
Specimens with Barcodes:6Public BINs:0
Species:1         
Species With Barcodes:1         
          
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Wikipedia

Limacina retroversa

Limacina retroversa is a species of swimming predatory sea snail in the family Limacinidae,[3] that belong to the group commonly known as sea butterflies (Thecosomata).

There is one subspecies: Limacina retroversa australis (Eydoux & Souleyet, 1840)

Contents

Distribution

This marine species has a wide distribution:

  • North Atlantic Ocean
  • Northwest Atlantic Ocean
  • European waters
  • Mediterranean Sea
  • Caribbean Sea
  • Cape Verde
  • Argentine Sea[4]

Ecology

Pteropod Clione limacina feeds only on genus Limacina: on Limacina helicina and on Limacina retroversa.[5]

References

  1. ^ Fleming J. (1823). "On a reversed species of Fusus (Fusus retroversus)". Memoirs of the Wernerian Natural History Society, Edinburgh, 4(2): 498-500, plate 15, figure 2.
  2. ^ "Limacina retroversa". CLEMAM, accessed 3 February 2011.
  3. ^ a b Gofas, S. (2011). Limacina retroversa. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=140227 on 18 July 2012
  4. ^ Dadon J. R. & de Cidre L. L. (1992). "The reproductive cycle of the Thecosomatous pteropod Limacina retroversa in the western South Atlantic". Marine Biology 114: 439-442. doi:10.1007/BF00350035, PDF.
  5. ^ Lalli C. M. & Gilmer R. W. (1989). Pelagic Snails. The biology of holoplanktonic gastropod molluscs. Stanford University Press: Stanford, California. page 188.
  • Abbott, R.T. (1974). American Seashells. 2nd ed. Van Nostrand Reinhold: New York, NY (USA). 663 pp.
  • Rosenberg, G. 1992. Encyclopedia of Seashells. Dorset: New York. 224 pp.
  • Bleakney, J.S. 1996. Sea slugs of Atlantic Canada and the Gulf of Maine. The Nova Scotia Museum Field Guide Series. Nimbus Publishing. Halifax. 216 p.
  • Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
  • Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.
  • Janssen A.W. (2012) Late Quaternary to Recent holoplanktonic Mollusca (Gastropoda) from bottom samples of the eastern Mediterranean Sea: systematics, morphology. Bollettino Malacologico 48 (suppl. 9): 1-105.

Further reading

  • Lebour M. V. (1932). "Limacina retroversa in Plymouth waters". J. mar. biol. Assoc. U.K. (ns)18(1): 123-129, 2 pls.
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