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Staurotheca multifurcata   Peña Cantero, Garcia Carrascosa & Vervoort, 1999


Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Staurotheca multifurcata   AquaMaps   Data sources: GBIF OBIS
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Classification Common names | Synonyms | CoL | ITIS | WoRMS

Hydrozoa | Leptothecata | Sertulariidae

Main reference References | Biblio | Coordinator | Collaborators

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

Size / Weight / Age

Max length : 48.0 cm H male/unsexed; (Ref. 7414)

Environment

Demersal; depth range 57 - 346 m (Ref. 7414)

Climate / Range

Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Antarctic Atlantic: South Shetland and South Georgia.

Short description

Stems up to 48 cm high, of dark brown color and polysiphonic over a great part of their length. Main stem slightly geniculate. Branching starting at basal part of colony, frequent, in one plane, and approximately alternate. Branches distinctly constricted at their origin, originating at an angle of ca 45°, curving and running more or less parallel to the original branch. Branches with irregularly arranged perisarc constrictions. Hydrothecae present all over the colony, although invisible in polysiphonic parts. Hydrothecae usually arranged in decussate verticils of three to six hydrothecae, forming 6 to12 longitudinal rows; however, decussate pairs of hydrothecae may be present in youngest, distal branches. Hydrothecae sunken into the branches and stems for approximately half of their volume, adcauline wall adnate for almost full length. In lateral view hydrotheca cylindrical, slightly curved abcaudally. In frontal view maximum diameter at hydrothecal base and then slowly decreasing in diameter towards the aperture. Hydrothecal aperture either even and approximately circular, or uneven with a more or less distinct prolongation of the abcauline hydrothecal wall, making the aperture laterally depressed. Hydrothecal aperture either tilted downwards, forming an acute angle with the longitudinal axis of stem, or tilted upwards, being more or less perpendicular to long axis of branches. Rim of hydrothecal aperture sometimes with a few shallow renovations. Diaphragm mushroom-shaped.

Biology     Glossary (e.g. epibenthic)

Length based on stem height. Shelf species. Found at depths 57 to 346 m on rocky and stony bottoms (Ref. 7414). Members of the order Leptothecata include L-form hydroids. Life cycle: The zygote develops into planula and later into polyp then into free-swimming medusa (Ref. 833).

IUCN Red List Status (Ref. 114614)

   

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Vulnerability (Ref. 71543)
Moderate vulnerability (38 of 100)
Price category (Ref. 80766)