dcsimg

Asexual Reproduction

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Care of Adults

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Living Material

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Living Material

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Methods of Observation

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Sexual Reproduction

provided by Egg Characteristics and Breeding Season for Woods Hole Species
Woods Hole, Maine
license
cc-by-nc-sa-3.0
copyright
Donald P. Costello and Catherine Henley
bibliographic citation
Costello, D.P. and C. Henley (1971). Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition)
author
Costello, D.P.
author
C. Henley

Description

provided by iArczoo

The coloration of the manubrium, bulbs, and gonads is yellowish.

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cc-by-3.0
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Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Diagnostic Description

provided by iArczoo

Gonads are located near the center of the radial canals.

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cc-by-3.0
copyright
Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Distribution

provided by iArczoo

Cosmopolite. In the Arctic, found in the Barents Sea, Chukchi Sea, and White Sea

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cc-by-3.0
copyright
Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Life Cycle

provided by iArczoo

Hydroid Obelia geniculata (Hincks)

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cc-by-3.0
copyright
Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Morphology

provided by iArczoo

Umbrella flat, inner side bulges outward during movement. Approximately 100 tentacles are placed in the same plane as the body. Velum is rudimentary. 8 statocysts, each one with 1 concretion. Gonads are located near the center of the radial canals, are oval in shape; in females usually carry several large eggs. Young specimens have 16-24 tentacles, gonads are usually located near the manubrium.

license
cc-by-3.0
copyright
Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Size

provided by iArczoo

Diameter up to 6 mm.

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cc-by-3.0
copyright
Hopcroft, Russ
author
Hopcroft, Russ
compiler
Ershova, Elizaveta
partner site
iArczoo

Obelia geniculata

provided by wikipedia EN

Obelia geniculata is a species of cnidarian belonging to the family Campanulariidae.[1]

The species has cosmopolitan distribution.[1]

References

  1. ^ a b "Obelia geniculata (Linnaeus, 1758)". www.gbif.org. Retrieved 18 October 2021.
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Wikipedia authors and editors
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visit source
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wikipedia EN

Obelia geniculata: Brief Summary

provided by wikipedia EN

Obelia geniculata is a species of cnidarian belonging to the family Campanulariidae.

The species has cosmopolitan distribution.

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Wikipedia authors and editors
original
visit source
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wikipedia EN

Biology

provided by World Register of Marine Species
colonial
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Cornelius, P.F.S., 1975. The hydroid species of Obelia (Coelenterata, Hydrozoa: Campanulariidae), with notes on the medusa stage. Bull. Br. Mus. nat. Hist., Zool. 28 6: 249-293. van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). Choong H., Calder D., Chapman J., Miller J., Geller J., Carlton J. (2018). Hydroids (Cnidaria: Hydrozoa: Leptothecata and Limnomedusae) on 2011 Japanese tsunami marine debris landing in North America and Hawai‘i, with revisory notes on Hydrodendron Hincks, 1874 and a diagnosis of Plumaleciidae, new family. <em>Aquatic Invasions.</em> 13(1): 43-70.
contributor
Jacob van der Land [email]

Distribution

provided by World Register of Marine Species
semi-cosmopolitan
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Cornelius, P.F.S., 1975. The hydroid species of Obelia (Coelenterata, Hydrozoa: Campanulariidae), with notes on the medusa stage. Bull. Br. Mus. nat. Hist., Zool. 28 6: 249-293. van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). Choong H., Calder D., Chapman J., Miller J., Geller J., Carlton J. (2018). Hydroids (Cnidaria: Hydrozoa: Leptothecata and Limnomedusae) on 2011 Japanese tsunami marine debris landing in North America and Hawai‘i, with revisory notes on Hydrodendron Hincks, 1874 and a diagnosis of Plumaleciidae, new family. <em>Aquatic Invasions.</em> 13(1): 43-70.
contributor
Jacob van der Land [email]