Overview

Comprehensive Description

Biology/Natural History: This species actually captures shrimp and small fish. One fish species, however, the painted greenling (Oxylebius pictus), has been observed lying unharmed in this anemone much as clownfish do in tropical anemones.

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Source: Invertebrates of the Salish Sea

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This large anemone (height up to 20 cm and diameter up to 10 cm) has a bright red column with tubercles but no acontia. The tubercles (which are in circumferential rows and not white) usually do not accumulate sand, shells, or other debris.
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Source: Invertebrates of the Salish Sea

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Distribution

Geographical Range: Alaska to La Jolla, CA

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Source: Invertebrates of the Salish Sea

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Physical Description

Type Information

Paratype for Tealia piscivora Sebens & Laakso
Catalog Number: USNM 56643
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol); Slide
Collector(s): K. Sebens
Year Collected: 1974
Locality: Off Tatoosh Island, Washington, United States, North Pacific Ocean
Depth (m): 15 to 15
  • Paratype:
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Holotype for Tealia piscivora Sebens & Laakso
Catalog Number: USNM 56642
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol)
Collector(s): K. Sebens
Year Collected: 1974
Locality: Off Tatoosh Island, Washington, United States, North Pacific Ocean
Depth (m): 15 to 15
  • Holotype:
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Look Alikes

How to Distinguish from Similar Species: Urticina crassicornis also may have a red column but it is common intertidally, usually has transverse bands on its tentacles, and the column often has olive green blotches.
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Source: Invertebrates of the Salish Sea

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Ecology

Habitat

Depth range based on 28 specimens in 1 taxon.
Water temperature and chemistry ranges based on 24 samples.

Environmental ranges
  Depth range (m): 0 - 55
  Temperature range (°C): 10.119 - 19.740
  Nitrate (umol/L): 5.321 - 6.931
  Salinity (PPS): 31.692 - 34.513
  Oxygen (ml/l): 4.002 - 6.616
  Phosphate (umol/l): 0.883 - 0.992
  Silicate (umol/l): 8.372 - 16.001

Graphical representation

Depth range (m): 0 - 55

Temperature range (°C): 10.119 - 19.740

Nitrate (umol/L): 5.321 - 6.931

Salinity (PPS): 31.692 - 34.513

Oxygen (ml/l): 4.002 - 6.616

Phosphate (umol/l): 0.883 - 0.992

Silicate (umol/l): 8.372 - 16.001
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth Range: Nearly always subtidal

Habitat: Usually on a rocky prominence where there is a fair amount of current.

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Source: Invertebrates of the Salish Sea

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Wikipedia

Urticina piscivora

Urticina piscivora, commom names fish-eating anemone and fish-eating urticina,[2] is a species of sea anemone in the family Actiniidae.[1]

Description[edit]

Urticina piscivora is a large anemone, growing to a maximum height of around 20 cm and 10 cm in diameter. The column is bright red in colour. The acontia is absent, but it has tubercles. These are not white and are arranged in circumferential rows. Normally they do not accumulate debris such as shells and sand.[2]

This species may be confused with Urticina crassicornis. Although they may both have a red column, the tentacles of U. crassicornis normally have transverse bands, and olive green blotches are commonly found on the column.[2]

Distribution[edit]

This species occurs from Alaska in the north, down to La Jolla, California in the south.[2]

Habitat[edit]

Urticina piscivora is almost always found in the subtidal zone. It attaches itself to rocky prominences in locations with a substantial current flowing past.[2]

Diet and behaviour[edit]

As its name suggests, this species is capable of capturing and consuming small fishes and shrimp. However, Oxylebius pictus (the painted greenling) has the ability to remain among the tentacles without being harmed.[2]

References[edit]

  1. ^ a b Fautin, D. (2014). "Urticina piscivora (Sebens & Laakso, 1978)". World Register of Marine Species. Retrieved August 8, 2014. 
  2. ^ a b c d e f Cowles, Dave (2005). "Urticina piscivora (Sebens and Laakso, 1977)". Rosario Beach Marine Laboratory. Retrieved August 8, 2014. 
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