Caranx ignobilis
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Caranx ignobilis |
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| ( Forsskål , 1775) |
Caranx ignobilis (also known as thick-headed mackerel) is a species of fish from the genus Caranx in the family of jacks (Carangidae).
description
Caranx ignobilis is one of the largest jacks and usually reaches a body length of 100 centimeters TL , but can be up to 170 centimeters long and weigh up to 80 kilograms. Towards the back, adult animals are silver-gray to black on the head and body, and mostly paler towards the belly. The fins are usually evenly gray to black. In animals from murky coastal waters, the fins are often yellow, with the anal fin (anal) then usually being the most vividly colored.
Caranx ignobilis has 24 vertebrae. Altogether, with stunted, 20 to 24 gill spines are present (5–7 + 15–17 upper / lower thighs). The chest is not scaly towards the abdomen, typically there is a small to large scaled area in front of the pelvic fins (ventral).
- Fin formula : Dorsal IX / 18–21, Anale III / 15–17
distribution
Caranx ignobilis is distributed in the Indo-Pacific from the Red Sea and the east coast of Africa to the Hawaii and Marquesas Islands, north to southern Japan and the Ogasawara Islands and south to northern Australia . In Hawaii there are hybrids with Caranx melampygus .
Way of life
The thick-headed mackerel lives at depths of 10 to 188 meters. Adult animals live pelagically over sand and rocks. They occur individually or alternatively in schools and inhabit clear lagoons, inner reefs and the sea side of reefs. Young animals live in small schools and can be found over sandy coastal waters, occasionally in estuaries . Their diet includes crustaceans , lobsters and fish. The animals form aggregations when spawning on shallow reefs and sea banks . Large specimens can be ciguatoxic ( poisoned by ciguatoxins ).
use
Caranx ignobilis is fished commercially and sportily in the Persian Gulf and most of the rest of the range. The species is caught with hooks and on lines, by spear fishing, with traps and gill nets. It is marketed fresh and dried and salted. In Hawaii, Caranx ignobilis is rarely used as food because of the fear of ciguatoxin poisoning.
Individual evidence
- ^ Theodor CH Cole: Dictionary of animal names. Springer Spectrum, 2015, ISBN 978-3662442418 , p. 77.
- ↑ a b c IUCN
- ↑ a b c d Fishbase
Web links
- Caranx ignobilis on Fishbase.org (English)
- Caranx ignobilis inthe IUCN 2019-3 Red List of Threatened Species . Posted by: WF Smith-Vaniz, I. Williams, 2015. Retrieved March 2, 2020.
- Sea water dictionary
- Fish lexicon