Overview

Comprehensive Description

Biology: Nematocysts

More info
LocationImageCnidae TypeRange of
Lengths (m)
Range of
Widths (m)
nNState
Carlgren O., 1945
Actinopharynx
N/A basitrichs  21 - 25.4  x   - 3.5  /
N/A microbasic p-mastigophores  25.4 - 30.3  x   - 5.5  /
Column
N/A basitrichs  14.8 - 17.5  x  2 - 2.5  /
Filaments
N/A basitrichs  14.8 - 18.3  x  2.5 - 2.8  /
N/A microbasic p-mastigophores  28.2 - 31  x  5.6 - 6.3  /
Tentacles
N/A basitrichs  14.1 - 22.6  x  2.5 - 2.8  /
N/A spirocysts   - 31  x   - 4.2  /
Dunn D. F., 1981
Actinopharynx
basitrichs  18.9 - 26.4  (28.8) x  2.4 - 4.1  86 / 10 Unfired
microbasic p-mastigophores  24 - 27.8  x  5.2 - 5.6  (7.4) 10 / 3 Unfired
spirocysts  25.6 - 31.2  x  3.2 - 5  10 / 2 Unfired
Column
basitrichs  13.9 - 24  (33.6) x  1.8 - 3.8  101 / 10 Unfired
microbasic p-mastigophores  22.4 - 30.8  x  8 - 10.3  17 / 3 Unfired
spirocysts  18.4 - 28  (36) x  2.4 - 3.2  (4.4) 16 / 3 Unfired
Filaments
basitrichs (9.8)  12.3 - 22.5  (24) x  1.6 - 3.5  50 / 12 Unfired
basitrichs (24.8)  27.9 - 38.5  (45) x  3.2 - 5.3  (6.3) 65 / 10 Unfired
microbasic p-mastigophores  20.5 - 27.9  (36) x  4.1 - 6.4  (7) 51 / 11 Unfired
microbasic p-mastigophores  20.5 - 28  x  8.8 - 12  26 / 4 Unfired
spirocysts  16 - 27.1  (32.8) x  2.4 - 4  (5) 27 / 9 Unfired
Tentacles
basitrichs  12.3 - 26.4  x  1.6 - 3.8  94 / 11 Unfired
spirocysts (15.4)  16.7 - 32  x  2.4 - 4.1  (5) 90 / 11 Unfired
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Ecology

Habitat

Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 0 - 0
  Temperature range (°C): 27.675 - 27.675
  Nitrate (umol/L): 0.449 - 0.449
  Salinity (PPS): 34.416 - 34.416
  Oxygen (ml/l): 4.705 - 4.705
  Phosphate (umol/l): 0.245 - 0.245
  Silicate (umol/l): 5.660 - 5.660
 
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 2 - 2
 
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Depth range based on 18 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 0 - 19
  Temperature range (°C): 27.134 - 29.382
  Nitrate (umol/L): 0.146 - 0.566
  Salinity (PPS): 34.266 - 35.223
  Oxygen (ml/l): 4.519 - 4.700
  Phosphate (umol/l): 0.161 - 0.248
  Silicate (umol/l): 2.639 - 4.102

Graphical representation

Depth range (m): 0 - 19

Temperature range (°C): 27.134 - 29.382

Nitrate (umol/L): 0.146 - 0.566

Salinity (PPS): 34.266 - 35.223

Oxygen (ml/l): 4.519 - 4.700

Phosphate (umol/l): 0.161 - 0.248

Silicate (umol/l): 2.639 - 4.102
 
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 1 - 1
 
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Associations

Biological Associations

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Algal symbionts
Zooxanthellae
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Wikipedia

Heteractis aurora

For the anemone in the family Phymanthidae, see Phymanthus crucifer.

Heteractis aurora, also known as the beaded sea anemone,[1] aurora host anemone, sand anemone, carpet anemone, flat anemone, corn anemone, ritteri anemone, saddle tip anemone, adhesive sea anemone, and the white beaded anemone, is a species of sea anemone in the family Stichodactylidae.[2]

Description[edit]

Both the tentalces and oral disc of Heteractis aurora are brown or purplish. The tentacles reach 50 mm in length, may be sticky when touched, and can have tips of a magenta colouration. The longer tentacles contain swellings. These appear on only on a single side, or almost entirely surrounding the tentacle, giving the appearance of beads on a string. A maximum of 20 such swellings may occur on any single tentacle.[1]

This species has a broad, flattened oral disc reaching 250 mm wide, and may have white or brown markings that radiate from the centre, and even continue up and along the tentacles.[1]

Distribution[edit]

Heteractis aurora occurs in Micronesia as well as in Melanesia to East Africa. It is also present in the Red Sea, and in Australia to the Ryukyu Islands.[1]

Habitat[edit]

This species lives among coral, and along rocky reef edges and on slopes, normally in areas with strong currents. They attach themselves to a surface, and remain partially buried in sediment or sand,[1] When threatened, they may retract entirely out of view into the substrate.

Host Species[edit]

This species hosts such fish as Amphiprion akindynos, Amphiprion allardi, Amphiprion bicinctus, Amphiprion chrysogaster, Amphiprion chrysopterus, and Amphiprion clarkii, Amphiprion tricinctus.[1]

References[edit]

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