Spirula spirula   (Linnaeus, 1758)

Ram's horn squid

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Spirula spirula

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

| Spirulida | Spirulidae

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

Πελαγικό(ά); εύρος βάθους 100 - 1750 m (Ref. 1695).  Tropical; ? - 10°C (Ref. 1695); 69°N - 32°S, 89°W - 160°W

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

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

Length at first maturity / Μέγεθος / Βάρος / Age

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

Βιολογία     Γλωσσάρι (π.χ. 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 Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

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.

Main reference Αναφορές | Συντονιστής | Συνεργάτες

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

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 29 March 2009

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


| FishSource |

Εργαλεία

E-book | Οδηγός πεδίου

Περισσότερες πληροφορίες

Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
Stocks
Οικολογία
Δίαιτα
Τροφικά αντικείμενα
Κοινά ονόματα
Συνώνυμα
Θηρευτές
Αναπαραγωγή
Γεννητική Ωρίμανση
Γεννοβολία
Γονιμότητα
Αβγά
Egg development
Age/Size
Αύξηση
Length-weight
Length-length
Μορφολογία
Προνύμφες
Αφθονία
Αναφορές
Mass conversion
Συνεργάτες
Φωτογραφίες

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

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