Spirula spirula   (Linnaeus, 1758)

Ram's horn squid

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Image of Spirula spirula (Ram\
Spirula spirula

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

| Spirulida | Spirulidae

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

Pelagisch; tiefenbereich 100 - 1750 m (Ref. 1695).  Tropical; ? - 10°C (Ref. 1695); 69°N - 32°S, 89°W - 160°W

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Einführungen

Circumglobal in tropical and subtropical oceanic waters. Tropical to polar.

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm ?, range 30 - ? cm Max length : 4.5 cm ML Männchen/unbestimmt; (Ref. 1695)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Minimum depth from Ref. 106682. Rarely exceeds 4.5 cm ML (Ref. 1695). Migrates from 550 to 1000 meters during the day, and 100 to 300 meters at night (Ref. 106682). Young is captured at depths 1,000 to 1,750 m, which suggests that females lay eggs on bottom of continental slopes (Ref. 1695). Dead shells washed up on the beaches often in large numbers (Ref. 88739).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults.

Hauptreferenz Referenzen | Koordinator | Partner

Jereb, P. and C.F.E. Roper (eds.). 2005. (Ref. 1695)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 29 March 2009

CITES Status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Nutzung durch Menschen


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Tools

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Mehr Information

Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
Stocks
Ökologie
Nahrung
Nahrungsorganismen
Namen
Synonyme
Räuber
Fortpflanzung
Geschlechtsreife
Ablaichen
Fecundity
Eier
Eientwicklung
Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Morphologie
Larven
Dichte
Referenzen
Mass conversion
Partner
Bilder

Internet Quellen

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

Estimates based on models

Preferred temperature (Ref. 115969): 4.7 - 11.6, mean 7.1 (based on 951 cells).
Preiskategorie (Ref. 80766): Unknown.