Overview

Comprehensive Description

Biology: Nematocysts

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LocationImageCnidae TypeRange of
Lengths (m)
Range of
Widths (m)
nNState
Dunn D. F., 1981
Actinopharynx
basitrichs  11.5 - 15.6  x  2.1 - 2.7  17 / 2 Unfired
basitrichs  19.7 - 28.7  x (2.5)  3.1 - 3.9  42 / 4 Unfired
microbasic p-mastigophores  23 - 27.7  x (4.1)  5.6 - 6.4  13 / 3 Unfired
spirocysts (18)  20.5 - 24.6  (27.1) x  2.5 - 3.7  9 / 3 Unfired
Column
basitrichs  5.9 - 9.4  x  1.8 - 2.4  25 / 4 Unfired
basitrichs (11.3)  13 - 20.5  x  1.6 - 3.5  123 / 12 Unfired
microbasic p-mastigophores  21.2 - 29.5  (33.4) x (5.1)  6.6 - 7.7  (10.6) 35 / 5 Unfired
spirocysts  16.5 - 25.4  (32.8) x  2 - 4.5  30 / 8 Unfired
Filaments
basitrichs  8.8 - 21.6  x  1.6 - 3  (3.5) 76 / 11 Unfired
basitrichs  24.6 - 36.1  (40.2) x  3.1 - 4.1  (5.1) 77 / 10 Unfired
microbasic p-mastigophores  20.5 - 28.3  (30.8) x  3.9 - 7  (8.3) 63 / 11 Unfired
spirocysts (16)  17.7 - 26  (27.1) x  2.4 - 4.7  23 / 6 Unfired
Tentacles
basitrichs (12.4)  14.8 - 22.1  (23.8) x  2.1 - 3.5  95 / 13 Unfired
spirocysts  17.7 - 33.6  x  2.1 - 4.1  (4.9) 90 / 13 Unfired
Dunn D. F., 1974
Column
N/A basitrichs  5.9 - 9.4  x  1.8 - 2.4  21 / unfired
N/A basitrichs  13 - 18.9  x  1.8 - 3  33 / unfired
N/A microbasic p-mastigophores  21.2 - 29.5  x  5.3 - 10.6  21 / unfired
N/A microbasic p-mastigophores  23.6 - 40.1  x  2.4 -   / unfired
N/A spirocysts  16.5 - 24.8  x  2.4 - 4.1  18 / unfired
Filaments
N/A basitrichs  17.7 - 30.7  x  2.4 - 4.1  25 / unfired
N/A basitrichs  9.4 - 16.5  x  1.8 - 3  28 / unfired
N/A microbasic p-mastigophores  22.4 - 28.3  x  4.1 - 8.3  10 / unfired
N/A spirocysts  17.7 - 26  x  2.4 - 4.7  15 / unfired
Tentacles
N/A basitrichs  12.4 - 21.2  x  2.4 -   23 / unfired
N/A spirocysts  17.7 - 27.1  x  3 - 4.1  24 / unfired
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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 7 - 7
 
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 1.5 - 1.5
  Temperature range (°C): 28.014 - 28.014
  Nitrate (umol/L): 0.242 - 0.242
  Salinity (PPS): 33.682 - 33.682
  Oxygen (ml/l): 4.537 - 4.537
  Phosphate (umol/l): 0.318 - 0.318
  Silicate (umol/l): 2.991 - 2.991
 
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Depth range based on 10 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 1 - 15
  Temperature range (°C): 22.924 - 27.675
  Nitrate (umol/L): 0.049 - 0.449
  Salinity (PPS): 34.416 - 35.289
  Oxygen (ml/l): 4.705 - 4.971
  Phosphate (umol/l): 0.085 - 0.245
  Silicate (umol/l): 1.278 - 5.660

Graphical representation

Depth range (m): 1 - 15

Temperature range (°C): 22.924 - 27.675

Nitrate (umol/L): 0.049 - 0.449

Salinity (PPS): 34.416 - 35.289

Oxygen (ml/l): 4.705 - 4.971

Phosphate (umol/l): 0.085 - 0.245

Silicate (umol/l): 1.278 - 5.660
 
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 1.5 - 1.5
  Temperature range (°C): 25.146 - 25.146
  Nitrate (umol/L): 0.009 - 0.009
  Salinity (PPS): 34.939 - 34.939
  Oxygen (ml/l): 4.813 - 4.813
  Phosphate (umol/l): 0.115 - 0.115
  Silicate (umol/l): 1.403 - 1.403
 
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Depth range based on 3 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 0 - 0
 
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Depth range based on 6 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 4.5 - 7

Graphical representation

Depth range (m): 4.5 - 7
 
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Depth range based on 16 specimens in 13 taxa.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 1 - 50
  Temperature range (°C): 25.506 - 25.787
  Nitrate (umol/L): 0.439 - 0.938
  Salinity (PPS): 34.538 - 35.123
  Oxygen (ml/l): 4.578 - 4.692
  Phosphate (umol/l): 0.102 - 0.292
  Silicate (umol/l): 3.500 - 5.791

Graphical representation

Depth range (m): 1 - 50

Temperature range (°C): 25.506 - 25.787

Nitrate (umol/L): 0.439 - 0.938

Salinity (PPS): 34.538 - 35.123

Oxygen (ml/l): 4.578 - 4.692

Phosphate (umol/l): 0.102 - 0.292

Silicate (umol/l): 3.500 - 5.791
 
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Associations

Biological Associations

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Algal symbionts
Zooxanthellae
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Wikipedia

Heteractis malu

Heteractis malu, also known as the malu anemone, delicate sea anemone[1] or white sand anemone, is a species of sea anemone in the family Stichodactylidae.[2]

Description[edit]

This anemone has stout, sparse tentacles, almost always under 40mm in length, usually tipped with magenta colouration. These tentacles vary in length, even among a single radial row.[3]

The column has a pale cream or yellow colouration, with patches of deep yellow or orange sometimes present. It remains buried in sediment up to the level of the oral disc.[4]

The oral disc grows to a maximum diameter of 200 mm, is brown or purplish, possibly with a white, radial pattern. It may sometimes be bright green, but this is rare.[5]

This species is similar in appearance to Macrodactyla doreensis, Heteractis aurora, and Heteractis crispa. These species are also found burrowed into the sediment, and share the same red or yellow blotches.[6]

Distribution[edit]

Heteractis malu occurs in scattered areas ranging from Japan in the north, to the islands of Hawaii, and to Australia.[7]

This species is inhabited by the yellow clownfish (Amphiprion clarkii)[8]

References[edit]


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