| Main Ref. | Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993 | ||||
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| Distribution |
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| Remarks | Commonly found near the bottom, in midwater and occasionally at the surface (Ref. 9258) in continental shelf waters (Ref. 27930). They form pelagic schools for most of the year but may move close to the sea bed during winter (Ref. 27931). Generally found at less than 300 m water depth with temperature less than 16° C (Ref. 9072). Juveniles inhabit coastal and estuarine waters although they may sometimes be found offshore (Ref. 27930). Feed mostly during the day mainly on krill and other planktonic crustaceans, light fish (Sternoptychidae) and lantern fish (Myctophidae) at the edge of the continental shelf (Ref. 27933). Seasonal patterns in the presence of surface schooling jack mackerel are thought to be a response to water temperature rather than evidence of migration, as surface schools are not generally found in water temperature above 17°C (Ref. 27933). Jack mackerel form schools of similar sized fish and there is evidence from demersal trawl surveys that the size of fish tends to increase with increasing depth of water (Ref. 5868). |
| Substrate | |
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| Substrate Ref. | |
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| Special habitats Ref. |
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| Parasitism |
| Feeding type | mainly animals (troph. 2.8 and up) | ||||||||||||||||||||||||||||||
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| Feeding type ref | Maxwell, J.G.H., 1979 | ||||||||||||||||||||||||||||||
| Feeding habit | hunting macrofauna (predator) | ||||||||||||||||||||||||||||||
| Feeding habit ref | Maxwell, J.G.H., 1979 | ||||||||||||||||||||||||||||||
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