Ecology

Habitat

Known from seamounts and knolls
  • Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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© WoRMS for SMEBD

Source: World Register of Marine Species

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Depth range based on 11763 specimens in 38 taxa.
Water temperature and chemistry ranges based on 10043 samples.

Environmental ranges
  Depth range (m): -0.5 - 270
  Temperature range (°C): 15.316 - 28.981
  Nitrate (umol/L): 0.008 - 5.244
  Salinity (PPS): 34.357 - 38.444
  Oxygen (ml/l): 4.230 - 5.541
  Phosphate (umol/l): 0.020 - 0.570
  Silicate (umol/l): 0.380 - 5.808

Graphical representation

Depth range (m): -0.5 - 270

Temperature range (°C): 15.316 - 28.981

Nitrate (umol/L): 0.008 - 5.244

Salinity (PPS): 34.357 - 38.444

Oxygen (ml/l): 4.230 - 5.541

Phosphate (umol/l): 0.020 - 0.570

Silicate (umol/l): 0.380 - 5.808
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:645Public Records:84
Specimens with Sequences:215Public Species:34
Specimens with Barcodes:84Public BINs:0
Species:55         
Species With Barcodes:34         
          
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data: Halimeda cf. cuneata HV823

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Halimeda cf. cuneata HV823

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

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Source: Barcode of Life Data Systems (BOLD)

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Halimeda

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Source: Barcode of Life Data Systems (BOLD)

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Genomic DNA is available from 1 specimen with morphological vouchers housed at Museum Victoria
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© Ocean Genome Legacy

Source: Ocean Genome Resource

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Genomic DNA is available from 9 specimens with morphological vouchers housed at Coastal Marine Biolabs & Spanish National Research Council (CSIC)
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© Ocean Genome Legacy

Source: Ocean Genome Resource

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Wikipedia

Halimeda

Fossilised Halimeda

Halimeda is a genus of green macroalgae. The algal body (thallus) is composed of calcified green segments. Calcium carbonate is deposited in its tissues, making it inedible to most herbivores.

As in other members of the order Bryopsidales, individual organisms are made up of single multi-nucleate cells. Whole meadows may consist of a single individual alga connected by fine threads running through the substrate.[2]

Halimeda is responsible for distinctive circular deposits in various parts of the Great Barrier Reef on the north-east coast of Queensland, Australia. Halimeda beds form in the western or lee side of outer shield reefs where flow of nutient-rich water from the open sea allows them to flourish, and are the most extensive, actively accumulating Halimeda beds in the world.

The genus is one of the best studied examples of cryptic species pairs due to morphological convergence within the marine macroalgae. [3] [4] [5]

Erect and sprawling Halimeda plants
Halimeda 2.png
Halimeda 3.png

Species[edit]

Halimeda fossils. The voids are where the Halimeda was, when it was covered with sand, then subsequently rotted, leaving a hole.
Halimeda copiosa at 10 meters depth in shallow cave

References[edit]

  1. ^ Guiry, M.D. & Guiry, G.M. (2007). "Genus: Halimeda taxonomy browser". AlgaeBase version 4.2 World-wide electronic publication, National University of Ireland, Galway. Retrieved 2007-09-24. 
  2. ^ The Cell Biology of the Bryopsidales
  3. ^ Kooistra W.H.C.F., Coppejans E.G.G. & Payri C. (2002). Molecular systematics, historical ecology, and phylogeography of Halimeda. (Bryopsidales) Molecular Phylogenetics and Evolution 24: 121–138
  4. ^ Verbruggen H., De Clerck O., Kooistra W.H.C.F. & Coppejans E. (2005). Molecular and morphometric data pinpoint species boundaries in Halimeda section Rhipsalis (Bryopsidales, Chlorophyta). Journal of Phycology 41: 606-621
  5. ^ Verbruggen H., De Clerck O., Schils T., Kooistra W.H.C.F. & Coppejans E. (2005). Evolution and phylogeography of Halimeda section Halimeda. Molecular Phylogenetics and Evolution 37: 789-803
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Source: Wikipedia

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