How much mackerel is caught commercially each year?
In 2009, commercial fishermen landed over 5 million tons of mackerel worldwide. Chub mackerel and Atlantic mackerel together account for about 75 percent of the total scombroid mackerel catch.
Short answers, pulled from the story.
In 2009, commercial fishermen landed over 5 million tons of mackerel worldwide. Chub mackerel and Atlantic mackerel together account for about 75 percent of the total scombroid mackerel catch.
Atlantic mackerel sustain a speed of 0.98 metres per second and can burst to 5.5 metres per second. The Wahoo, Acanthocybium solandri, is the fastest mackerel relative, reaching speeds of up to 78 kilometres per hour.
The stripes serve as schooling marks rather than camouflage. Fish have an optokinetic reflex sensitive to moving stripes, and the markings help neighbouring mackerel align and match speed. Reflecting platelets on some stripes also signal changes in a fish's orientation to nearby companions, as described by E J Denton and D M Rowe in 1998.
Mackerel is derived from Old French and may originally have meant either "marked, spotted" or "pimp, procurer." The second meaning was linked to the fish's conspicuous spawning behaviour in coastal shoals.
Individual female mackerel lay between 300,000 and 1,500,000 eggs per spawning event. The eggs and larvae are pelagic, meaning they float free in the open sea.
A 1976 survey of 1,931 housewives by the White Fish Authority found fewer than 10 percent had ever bought mackerel, and only 3 percent did so regularly. Folklore held that mackerel fed on drowned sailors, and the fish's rapid spoilage reinforced its poor reputation; many fishmongers did not stock it at all during that period.