The Japanese jack mackerel is a streamlined, silvery fish found in the coastal waters of the Northwest Pacific. Typically reaching 12-16 inches and weighing 1-2 pounds, it has a forked tail and a dark spot near its gills. It feeds on plankton and small fish, forming large schools and exhibiting fast, agile swimming behavior. This summary is AI generated
Water type
Common depth
IUCN Status
Threat to humans
Source: Fishbase
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Japanese jack mackerel
length · weight
Japanese jack mackerel
length · weight


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