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Staurotheca jaederholmi   Stechow, 1920


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

Main reference
Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age
Max length : 12.0 cm H male/unsexed; (Ref. 7414)

Environment
Demersal; depth range 18 - 4804 m (Ref. 7414)

Climate / Range
Temperate

Distribution
Southwest Atlantic, Southeast Pacific and Antarctic Pacific. Temperate to polar.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description
Stems up to 12 cm high, polysiphonic over part of their length. Branching alternate and in one plane; sometimes anastomoses amongst the branches. Hydrothecae arranged in decussate verticils of two to four hydrothecae, forming four to eight longitudinal rows. Frequently, however, hydrothecal verticils with irregularities, and indistinct. Hydrothecae low, sunken into branches for approximately one-third of their volume. Adcauline hydrothecal wall adnate to internode for almost its entire length. Hydrothecal abcauline wall straight or slightly concave; hydrothecal aperture slightly laterally depressed; rim uneven due to the presence of an elevation of the abcauline hydrothecal wall, aperture only slightly tilted downward. Hydrotheca without mushroom-shaped diaphragm. Male and female gonothecae present. Female gonotheca arising from a stolonal process (modified branch) originating at the hydrothecal base. This process provided with alternately arranged, isolated hydrothecae with one gonotheca at the base of each hydrotheca. Female gonotheca pear-shaped, sometimes provided with a few spine-shaped projections. Gonothecal aperture not observed. Male gonothecae inserted directly at the hydrothecal base and arranged in close proximity on the branches; gonotheca fusiform with a small circular aperture at the distal end.

Biology     Glossary (e.g. epibenthic)

Eurybathic species. Found from depths between 18 and 500m ; collected from 76 to 4804 m. On stony bottoms, pebbles, epilithic on gravel and epibiotic on bryozoans (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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Length-length
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References
Mass conversion

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)
Low vulnerability (10 of 100)
Price category (Ref. 80766)