Bicolor jack
📖 Overview
Adults are found mainly in coastal areas, entering brackish water . Common mostly in midwater and near bottom . Young live in association with medusa (jellyfish) .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 8; Dorsal soft rays (total): 24 - 28; Anal spines: 3; Anal soft rays: 21 - 24. Diagnosis: body elongate (depth comprised 2.4-3.1 times in fork length) and strongly compressed; eyes small; snout short and rounded; mouth small; end of upper jaw extending to below anterior eye margin; teeth present in jaws, absent on vomer; 1st dorsal fin with 7 spines, 2nd dorsal with 1 spine and 24-28 soft rays; anal fin with 2 detached spines, followed by 1 spine and 21-24 soft rays; scales small and cycloid; breast completely scaleless; lateral line arched over anterior half of pectoral fins, its posterior (straight) part with 41-43 scutes; caudal peduncle very slender, without bilateral keels above and below last lateral line scutes . Coloration: back bluish, sides silvery; black spot on upper margin of gill cover; dorsal- and upper caudal-fin lobes broadly black-edged, other fins light; juveniles with 4-5 dark crossbars on back and sides .: fusiform / normal.
🌀 Behaviour
Behavioural data for Bicolor jack is currently being reviewed.
🦐 Diet
Diet information for Bicolor jack is currently being compiled.
🥚 Reproduction
Reproduction data for Bicolor jack is currently being compiled.
🌍 Habitat & Distribution
Marine; brackish; demersal. Tropical west African coast from Sierra Leone to Angola (Ref.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Bicolor Jack · two-colour jack |
| 🌍CES | kranas dvoubarvý |
| 🇫🇷French | carangue bicolore |
| 🇵🇹Portuguese | Xaréu-bicolor |
| 🇪🇸Spanish | casabe bicolor |
| 🇨🇳Chinese | 雙色半鰺 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Alepes bicolor | Günther | 1860 | Synonym |
| Alepes marginatus | Bleeker | 1862 | Synonym |
| Caranx bicolor | Günther | 1860 | Synonym |
| Caranx marginatus | Schlegel | 1862 | Heterotypic |
| Hemicaranx marginatus | Bleeker | 1862 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 26 records indexed .
👥 Community & Contribute
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