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NL·0689AnimalsScombridaeFish724 field observations
Indian mackerelNL·0689
Plate 1 of 7. (c) David R, some rights reserved (CC BY-NC), uploaded by David R · via iNaturalist

Herbarium of the Nature Library

Name
Rastrelliger kanagurta
Family
Scombridae
Native to
Indo-West Pacific from the Red Sea and East Africa to Indonesia, Australia, Samoa and Japan; entered the eastern Mediterranean via the Suez Canal
Habitat
Coastal waters, Continental shelf
IUCN LC · Least concern

Indian mackerel

Rastrelliger kanagurta

Also calledBangda (Marathi/Hindi) · Ayala (Malayalam) · Bangude (Kannada/Konkani) · Kembung (Malay/Indonesian) · Pla thu (Thai, Rastrelliger spp.)

A small, inexpensive mackerel that feeds millions along the coasts of the Indian Ocean. It swims with its mouth open, filtering plankton through long, feathery gill rakers.

The Indian mackerel or bigmouth mackerel is a species of mackerel in the family Scombridae. It is commonly found in the Indian and West Pacific oceans, and their surrounding seas. It is an important food fish and is commonly used in South and South-East Asian cuisine. Wikipedia

§1

What it can do

  1. iFilter-feeds by ram ventilation with long, dense gill rakers
  2. iiForms large schools near upwelling coasts during monsoon seasons
  3. iiiMatures in under a year
§2

In the field

Field marks

  • aDeep, compressed mackerel body with a pointed head
  • bNarrow dark longitudinal stripes on the upper back
  • cBlack spot near the lower margin of the pectoral fin
  • dGolden lateral stripe in fresh fish
  • eFive finlets behind dorsal and anal fins
Not to be confused with
Short mackerel (R. brachysoma) is deeper-bodied without back stripes; island mackerel (R. faughni) has dark spots instead of lines.
Where to see it
Fish markets of Kerala, Goa, Mangalore, Karachi and Colombo; reef dives in the Maldives and Red Sea where schools filter-feed open-mouthed
When
Peak fishery Sep–Mar on India's west coast
§3

Life & habits

Diet
Phytoplankton, copepods, larval fish
Habitat
Coastal waters and bays with temperatures above 17 °C
Size
Usually 20–25 cm; up to 35 cm
Lifespan
About 3–4 years

Schools travel inshore along the Malabar and Konkan coasts with post-monsoon plankton blooms.

§4

Where it lives

Recorded sightings

—

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

Native range

Indo-West Pacific from the Red Sea and East Africa to Indonesia, Australia, Samoa and Japan; entered the eastern Mediterranean via the Suez Canal

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

No plate in the Source Library names this exact species, so these show its closest relatives as the old naturalists drew them: same genus, or the same kind of animal. Click a plate to read the page it came from, with translation.

§6

In the stacks

Searching the stacks…

Every page naming Rastrelliger kanagurta in the Biodiversity Heritage Library →

§7

Marginalia

Ayala and bangda fry and curry are staples of Kerala, Goa and Mangalorean cooking, and the fish has been salted and sun-dried on Indian beaches for centuries.

Curiosity

The species name comes from 'kanagurta', a Telugu name recorded by Patrick Russell in his 1803 account of the fishes of Vizagapatam on the Coromandel coast.

§8

Kinship

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›subphylumVertebrata
  4. ›classActinopterygii
  5. ›superorderAcanthomorpha
  6. ›orderScombriformes
  7. ›suborderScombroidei
  8. ›familyScombridae
  9. ›subfamilyScombrinae
  10. ›genusRastrelliger
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 133530.