Symplectoscyphus liouvillei

Symplectoscyphus liouvillei   (Billard, 1914)


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Symplectoscyphus liouvillei  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Hydrozoa | Leptothecata | Sertulariidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Sessile; depth range 200 - 420 m (Ref. 7416).  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Antarctic-Patagonian.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm

Short description Morphology

A large colony, strongly polysiphonic and fragmented. Colony polysiphonic throughout, with the exception of the most distal, youngest branches. Polysiphony due to numerous and thin secondary tubes. Basalmost stem fragment (ca 0.5 cm thick and 19 cm long, including hydrorhiza) completely polysiphonic, provided with a large rhizoidal hydrorhiza (ca 5 cm long) spreading on a calcareous bryozoan; originally hydrorhiza could have been discoidal, later, while the colony was growing the hydrorhiza may have developed strong hydrorhizal stolons for the attachment to less firm substratum. Hydrorhizal stolons polysiphonic, consisting of a large number of thin tubes like those giving rise to polysiphony of stem. Stem forking at 9 cm height, though previously with a few small, simple branches. Following stem fragment, ca 10.5 cm long, branched, giving rise to several polysiphonic lower-order stems. Branching irregular and in several planes, sometimes with more or less spiral arrangement. Branches originating laterally at the hydrothecal base, decreasing in diameter distally; plane formed by hydrothecae of lower-order branch perpendicular to that formed by hydrothecae of previous branch. Branches divided into short hydrothecate internodes; one hydrotheca per internode. Hydrothecae alternately arranged in one plane, though with a spiral variation of that plane along the branches. Hydrotheca slightly abcaudally directed. Adcauline wall adnate to internode for approximately two-thirds of its length; free part of adcauline wall straight or slightly convex. Abcauline wall straight or slightly concave. Hydrothecal aperture provided with three cusps separated by deep embayments. Rim of hydrothecal aperture with numerous renovations, even in the distalmost hydrothecae.

Biology     Glossary (e.g. epibenthic)

Known at depths of 200 to 420 m on bottoms of mud and gravel (Ref. 7416).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Recorded fertile colonies collected in February and March; material was collected in January and February.

Main reference References | Coordinator | Collaborators

Peña Cantero, A.L., A. Svoboda and W. Vervoort. 2002. (Ref. 7416)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 0 - 1.7, mean 0.9 (based on 13 cells).

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