Mammalia |
Cetartiodactyla |
Balaenopteridae
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
Pelagisch; oceanodroom (Ref. 75906); diepte 80 - 500 m (Ref. 1005). Polar; 90°N - 90°S, 180°W - 180°E
North Atlantic and North Pacific: Balaenoptera musculus musculus.
North Atlantic [IUCN 2010 (Ref. 84930): VU, D1] and North Pacific [IUCN 2010 (Ref. 84930): LR/cd.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm Max length : 3,300 cm TL mannelijk / geslacht onbekend; (Ref. 99323); max. gepubliceerd gewicht: 160.0 t (Ref. 1394)
The largest whales of the world's oceans. They can be seen from the equator to the pack ice edges in both hemispheres, with most poleward intrusions in both hemispheres in summer. Some are resident, others are migratory. Feeds on krill (Ref. 1394). Feeds at depths less than 100 m (Ref. 1005). From the time faster catcher boats and explosive harpoons made them catchable, blue whales were hunted relentlessly from the late 19th through the mid 20th centuries. As the largest whales, they were the most sought after of the rorquals. Although most populations remain well below pre-exploitation levels, some stocks (such as those that feed off California) have shown encouraging signs of recovery since protection by the International Whaling Commission (IWC) in 1965. At least in the eastern North Atlantic and the eastern North Pacific, numbers appear to be on the rise (Ref. 1394). In general, they occur in coastal, shelf, and oceanic waters (Ref. 122680). They can be seen from the equator to the pack ice edges in both hemispheres, with most poleward intrusions in both hemispheres in summer. Some are resident, others are migratory (Ref. 1394). Known as 'gulpers,' feeding in separate events, often lunging at large schools of fish (Ref. 122680). Feeds on krill (Ref. 1394). Feeds at depths less than 100 m (Ref. 1005).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Jefferson, T.A., S. Leatherwood and M.A. Webber 1993 FAO species Identification Guide: Marine Mammals of the World. Rome, FAO. 320 p. + 587 figures. (Ref. 1394)
Status op de Rode Lijst van het IUCN
(Ref. 130435: Version 2025-2 (Global))
CITES status (Ref. 108899)
Gevaar voor de mens
Gebruik door de mens
Visserij: commercieel
FAO - visserij: soortsprofiel, landings search; Publication: search | FishSource | Sea Around Us
Tools
Meer informatie
FysiologieZuurstofverbruik
Menselijk gerelateerdPostzegels, munten, diversen.
Internetbronnen
Schattingen op basis van modellen
Weerstandsvermogen
(Ref. 69278): |
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.08-0.09; tm=11) |
Kwetsbaarheid van de visserij
(Ref. 71543) |
Very high vulnerability (84 of 100). |
Prijsklasse
(Ref. 80766): |
Unknown. |
