Staurotheca undosiparietina   (Stepan'yants, 1979)


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Staurotheca undosiparietina  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 74 - 700 m (Ref. 7414).  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Antarctic Atlantic: Western Antarctica and South Georgia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 32.0 cm H male/unsexed; (Ref. 7414)

Short description Morphology

Stems up to 32 cm high, polysiphonic over a great extension. Main stem distinct, deprived of branches basally. When branching becomes frequent, main stem becoming indistinct. Branching scarce, irregular and in several planes. Hydrothecae present over entire colony, though inconspicuous in polysiphonic parts. Hydrothecae arranged in verticils of three to five hydrothecae forming 6 to 10 longitudinal rows. Hydrothecae immersed into the branches for approximately half of their volume and adnate for almost full adcauline length; free adcauline wall inconspicuous. In lateral view hydrotheca cylindrical and slightly abcaudally directed; abcauline wall slightly concave. In frontal view maximum diameter at hydrothecal base, slightly decreasing upwards. Hydrothecal aperture circular and tilted downwards, forming an acute angle with long axis of stem; rim even and sometimes with renovations. Hydrothecal diaphragm mushroom-shaped, though sometimes abcauline projections absent. Male and female gonothecae present, both originating at the hydrothecal base. Female gonotheca oval, provided with a distal, laterally depressed aperture due to the presence of one adcauline cusp and one, better developed, abcauline cusp. Male gonotheca fusiform, with a small, circular aperture at the end of an inconspicuous neck. Both male and female gonothecae with abcauline keel.

Biology     Glossary (e.g. epibenthic)

Length based on stem height. A shelf species found at depths of 74 to 700 m on rocks, gravel and mud. It is used as a substratum by other hydroids (Ref. 7414).

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

Fertile colonies were collected in February, September, November and December. Fertile throughout much of the year, except during the winter months.

Main reference References | Coordinator | Collaborators

Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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FAO areas
Ecosystems
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Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion
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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): -0.2 - 1.9, mean 0.8 (based on 16 cells).
Vulnerability (Ref. 71543): Low vulnerability (22 of 100).