Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Ecologie
Pelagisch; oceanodroom (Ref. 75906); diepteverspreiding 0 - 2652 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Size / Gewicht / Leeftijd
Maturity: Lm ?, range 570 - 660 cm Max length : 980 cm TL mannelijk/geslacht niet bekend; (Ref. 1394); 850 cm TL (female); Maximaal gepubliceerd gewicht: 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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Status bij CITES (Ref. 108899)
Gebruik door de mens
Visserij: commercieel
FAO - Visserij: landings, soortsprofiel | FishSource | Sea Around Us
Tools
Internet-bronnen
Estimates based on models
Preferred temperature
(Ref.
115969): 0.3 - 13.1, mean 3.1 (based on 13394 cells).
Weerstandsvermogen
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.1-0.17; tm=9.4).
Kwetsbaarheid
High to very high vulnerability (66 of 100).
Prijsklasse
Unknown.