Symplectoscyphus weddelli

Symplectoscyphus weddelli   Peña Cantero, Svoboda & Vervoort, 2002

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Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Hydrozoa | Leptothecata | Sertulariidae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

; εύρος βάθους 119 - 390 m (Αναφ. 7416).  Polar

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Antarctic Atlantic: Antarctica.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 2.5 cm H αρσενικό/απροσδιόριστο; (Αναφ. 7416)

Short description Μορφολογία

Colonies with monosiphonic stems up to 2.5 cm high, arising from stolonal hydrorhiza. Branching irregular and in several planes. Branches originating laterally at hydrothecal base; plane formed by hydrothecae of lower-order branch perpendicular to that formed by hydrothecae of previous branch. Occasionally branches becoming anastomosing stolons distally. Stems divided into more or less straight internodes with oblique nodes sloping in alternate directions; one hydrotheca per internode. Hydrothecae abcaudally directed, with indistinct inflexion point where the adcauline wall becomes free. Adcauline hydrothecal wall adnate to internode for approximately half its length, though usually adnate part slightly longer than free portion. Free part of adcauline hydrothecal wall straight or slightly convex. Abcauline hydrothecal wall slightly concave. Cusps of hydrothecal aperture sharp and separated by deep embayments. Rim of hydrothecal aperture with frequent renovations. Gonothecae ovoid, inserting at hydrothecal base. Gonothecal walls spirally folded, forming a frill with eight or nine turns. Gonotheca distally with a long, funnel-shaped neck bearing the gonothecal aperture.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Known at depths of 119 to 390 m on muddy and rocky bottoms. Growing on uncalcified Bryozoa, polychaete tubes and Hydrozoa. It is used as substratum by other hydroids (Ref. 7416).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae

Fertile colonies were collected in January and February.

Main reference Αναφορές | Συντονιστής | Συνεργάτες

Peña Cantero, A.L., A. Svoboda and W. Vervoort 2002 Species of Stymplectoscyphus Marktanner-Turneretscher, 1980 (Cnidaria; Hydrozoa: Sertulariidae) from recent Antarctic expeditions with R.V. Polarsten, with the description of four new species. Journal of Natural History 36:1509-1568. (Αναφ. 7416)

IUCN Red List Status (Αναφ. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Αναφ. 108899)

Not Evaluated

CMS (Αναφ. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Τροφική Οικολογία
Food items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Οικολογία
Οικολογία
Population dynamics
Αύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Γονιμότητα
Γεννοβολία
Eggs
Egg development
Larvae
Distribution
Χώρες
Περιοχές FAO
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Παρουσίες
Εισαγωγές
Physiology
Κατανάλωση οξυγόνου
Human Related
Stamps, coins, misc.
Outreach
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Taxonomy
Κοινά ονόματα
Συνώνυμα
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Αναφορές

Διαδικτυακές πηγές

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Δέντρο Ζωής | Wikipedia (Go, αναζήτηση) | Zoological Record

Estimates based on models

Fishing Vulnerability (Αναφ. 71543): Low vulnerability (10 of 100).

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