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NL·0690AnimalsScombridaeFish1,628 field observations
Atlantic mackerelNL·0690
Plate 1 of 7. (c) Hans Hillewaert, some rights reserved (CC BY-NC-ND) · via iNaturalist

Herbarium of the Nature Library

Name
Scomber scombrus
Family
Scombridae
Native to
North Atlantic on both sides; Mediterranean and Black seas
Habitat
Continental shelf, Open ocean (pelagic)
IUCN LC · Least concern

Atlantic mackerel

Scomber scombrus

Also calledCaballa (Spanish) · Maquereau (French) · Makreel (Dutch) · Uskumru (Turkish) · Makrell (Norwegian)

A fast, striped schooling fish of the North Atlantic that lacks a swim bladder and must swim constantly. Its oily flesh is grilled, smoked and canned throughout Europe.

The Atlantic mackerel, also known as Boston mackerel, Norwegian mackerel, Scottish mackerel or just mackerel, is a species of mackerel found in the temperate waters of the Mediterranean Sea, the Black Sea, and the northern Atlantic Ocean, where it is extremely common and occurs in huge shoals in the epipelagic zone down to about 200 m (660 ft). It spends the warmer months close to shore and near the ocean surface, appearing along the coast in spring and departing with the arrival of colder weather in the fall and winter months. During the fall and winter, it migrates out into deeper and more southern water, seeking warmer temperatures. Wikipedia

§1

What it can do

  1. iHas no swim bladder, so it can change depth rapidly
  2. iiMigrates in huge schools between spawning and feeding grounds
  3. iiiA northward shift of its summer feeding range into Icelandic and Faroese waters triggered the 'mackerel war' over quotas from 2010
§2

In the field

Field marks

  • aIridescent green-blue back with 20–30 wavy black bars
  • bSilvery-white belly without spots
  • cTwo well-separated dorsal fins and 5 finlets above and below the tail
  • dTorpedo body with small keels on the tail base
Not to be confused with
Atlantic chub mackerel (Scomber colias) has dusky spots on the belly and a swim bladder; horse mackerel has a row of bony scutes along the lateral line.
Where to see it
Cornwall, Brittany and Norwegian coasts in summer; Gulf of Maine
When
Inshore summer visitor in northern Europe, roughly May–Sep
§3

Life & habits

Diet
Zooplankton, krill, small fish
Habitat
Shelf waters in the upper 200 m
Size
Usually 30 cm; up to 60 cm
Lifespan
Up to about 20 years

Overwinters in deeper water and moves inshore in summer, where schools drive baitfish to the surface.

§4

Where it lives

Recorded sightings

—

geo-referenced records in GBIF, from museums, herbaria and field observers.

Native range

North Atlantic on both sides; Mediterranean and Black seas

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

§5

In the old herbals & bestiaries

Woodcuts and engravings matched from the Source Library’s scanned books by name. Plates marked “relative” show a close kin rather than this exact species. Click a plate to read the page it came from, with translation.

§6

In the stacks

Searching the stacks…

Every page naming Scomber scombrus in the Biodiversity Heritage Library →

§7

Marginalia

In 17th-century London mackerel was allowed to be sold on Sundays because it spoils so fast; Cornish handline fishing for mackerel is centuries old.

Curiosity

The phrase 'mackerel sky' for rippled cirrocumulus clouds comes from the fish's barred back.

§8

Kinship

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›subphylumVertebrata
  4. ›classActinopterygii
  5. ›superorderAcanthomorpha
  6. ›orderScombriformes
  7. ›suborderScombroidei
  8. ›familyScombridae
  9. ›subfamilyScombrinae
  10. ›genusScomber
Open its branch on the Wheel of Life →

Photographs: iNaturalist contributors under the licences shown. Records: GBIF.org. Historical plates: Source Library (CC BY-SA 4.0; originals public domain). Summary text: Nature Library editors and Wikipedia (CC BY-SA). Medicinal and edibility notes are historical and educational, not advice. iNaturalist taxon 118678.