Cephalopoda |
Sepiida |
Sepiolidae | Rossiinae
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
Batidemersale; distribuzione batimetrica 40 - 1535 m (Fonte Biblio. 1695). Tropical; 66°N - 55°S, 60°W - 36°E (Fonte Biblio. 107071)
Atlantic Ocean and the Mediterranean: from southwest Iceland to Southern Africa and Falkland Islands.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm Max length : 5.1 cm ML maschio/sesso non determinato; (Fonte Biblio. 1695); 8.3 cm ML (female)
Most bathyal among the members of the family. Demersal. Prefers deep muddy bottoms characterized by Isidella elongata populations, often overlapping with Rossia macrosoma in the upper level of its distributional range and frequently associated with Sepietta oweniana and Rondeletiola minor. In the western Mediterranean, it is the most common cephalopod captured between 1000 and 2000 m, along with Bathypolypus sponsalis but is most abundant between 400 and 600 to 700 m in both eastern and western parts of this sea. Mature individuals found throughout the year suggest an extended spawning season. Its large eggs (8-10 mm diameter and covered by a hard violet-coloured coating), are attached to hard substrates at various depths. Lifespan approximated between 12 and 24 months. Usually taken as trawl fishery bycatch; of minor commercial importance. Sold fresh and frozen in fish markets with other bobtail squids (Ref. 1695).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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.
Jereb, P. and C.F.E. Roper (eds.) 2005 Cephalopods of the world. An Annotated and Illustrated catalogue of Cephalopod species known to date. Vol. 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Spec. Cat. Fish. Purp. 4(1):262p. Rome: FAO. (Fonte Biblio. 1695)
Stato della Lista Rossa IUCN
(Fonte Biblio. 130435: Version 2025-2 (Global))
Stato della CITES (Fonte Biblio. 108899)
Not Evaluated
CMS (Fonte Biblio. 116361)
Not Evaluated
Minaccia per l'uomo
Usi umani
Pesca: scarso interesse commerciale
FAO - Publication: search | FishSource |
Strumenti
Informazioni ulteriori
Ecologia troficaArticoli alimentari (prede)
Alimentazione
Consumo di cibo
Predatori
Dinamica della popolazione Ciclo di vitaRiproduzioneMaturitàFeconditàDeposizioneUovaSviluppo delle uovaLarve FisiologiaConsumo di ossigeno
Legato all'uomoFrancobolli, monete, materiale vario.
Fonti Internet
Stime basate su modelli
Vulnerabilità della pesca
(Fonte Biblio. 71543) |
Low vulnerability (10 of 100). |
Categoria di prezzo
(Fonte Biblio. 80766): |
Unknown. |
