Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Ekologi
Pelagis, permukaan; oceanodromus (Ref. 75906); kisaran kedalaman 0 - 2652 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E
Circumglobal. Climate: cosmopolitan.
Length at first maturity / Size / Weight / umur
Maturity: Lm ?, range 570 - 660 cm Max length : 980 cm TL jantan/; (Ref. 1394); 850 cm TL (female); Berat maksimum terpublikasi: 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).
rujukan utama
Acuan | Koordinator | mitra
Tan, J.M.L. 1995. (Ref. 936)
Status IUCN Red List (Ref. 130435)
status CITES (Ref. 108899)
penggunaan manusia
Perikanan: komersial
FAO - Perikanan: landings, profail spesis | FishSource | Sea Around Us
Alat, peralatan
Sumber internet
Estimates based on models
Preferred temperature
(Ref.
115969): 0.3 - 13.1, mean 3.1 (based on 13394 cells).
Daya lenting
Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (K=0.1-0.17; tm=9.4).
keancaman
High to very high vulnerability (66 of 100).
kategori harga
Unknown.