Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Écologie
Pélagique; océanodrome (Ref. 75906); profondeur 0 - 2652 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm ?, range 570 - 660 cm Max length : 980 cm TL mâle / non sexé; (Ref. 1394); 850 cm TL (female); poids max. publié: 10.0 t (Ref. 1394)
Transient migration (Ref. 8689). Lives in matrilines throughout their lifetime (Ref. 97337). Commonly found in nearshore, cold temperate to subpolar waters (Refs. 1394, 936). Forms large social groups and strong social bonds. Feeds cooperatively (Ref. 122680). Feeds on sharks, large baleen whales (Ref. 122680), all oceanic cetaceans, pinniped, penguins, and other seabirds, leatherback turtles, squid and many types of fish (Refs. 1394, 936).
Polygamous (Ref. 8653). Sexually dimorphic; males are larger than females (Ref. 97315). Females have higher preference for non-pod males that arrive as part of a matriline than males that arrive alone. Multiple mating occurs based on testis size to body size ratios; females mate with more than one male during associations between pods (Ref. 97337). Calving is diffusely seasonal, with a peak in autumn for northeastern Pacific species (Ref. 97343).
Tan, J.M.L. 1995. (Ref. 936)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
statut CITES (Ref. 108899)
Utilisations par l'homme
Pêcheries: commercial
FAO - pêcheries: landings, species profile | FishSource | Sea Around Us
Outils
Sources Internet
Estimates based on models
Preferred temperature
(Ref.
115969): 0.3 - 13.1, mean 3.1 (based on 13394 cells).
Résilience
Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.1-0.17; tm=9.4).
Vulnérabilité
High to very high vulnerability (66 of 100).
Catégorie de prix
Unknown.