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Caranx rhonchus  Geoffroy Saint-Hilaire, 1817

False scad
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Native range | All suitable habitat | Point map | Year 2100
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Caranx rhonchus   AquaMaps   Data sources: GBIF OBIS
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Image of Caranx rhonchus (False scad)
Caranx rhonchus
Picture by Luyben, J.


Portugal country information

Common names: Charro molar, Charro-amarelo, Charro-espanhol
Occurrence: native
Salinity: brackish
Abundance: occasional (usually not seen) | Ref: Veiga, P., J. Ribeiro, J.M.S. Gonçalves and K. Erzini, 2010
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from the south and southwest coast (Ref. 85184).
National Checklist: Portugal
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Bauchot, M.-L., 1987
National Database: Portuguese Freshwater Fishes

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Carangidae (Jacks and pompanos) > Caranginae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

Max length : 60.0 cm TL male/unsexed; (Ref. 57392); common length : 35.0 cm TL male/unsexed; (Ref. 3397); max. published weight: 1.0 kg (Ref. 27584)

Length at first maturity
Lm ?, range 20 - ? cm

Environment

Marine; brackish; benthopelagic; depth range 30 - 200 m (Ref. 27584), usually 30 - 50 m (Ref. 26999)

Climate / Range

Subtropical; 15°C - 22°C (Ref. 57055); 39°N - 22°S, 19°W - 36°E

Distribution

Eastern Atlantic: Morocco to Angola (Ref. 4225, 57392), including the Mediterranean along the African coast. Range reported to extend south to Namibia (Ref. 27121).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 9; Dorsal soft rays (total): 28-32; Anal spines: 3; Anal soft rays: 25 - 28. Diagnosis: body elongate and slightly compressed, its depth comprised from 3.8 to 4.4 times in fork length; eye posteriorly with a well developed adipose eyelid; 2 well separated dorsal fins, 1st with 8 spines, 2nd with 1 spine and 28-32 soft rays; anal fin with 2 detached spines, followed by 1 spine and 25-28 soft rays; last dorsal and anal ray transformed into a partially separate finlet, connected to the preceding ray by a low interradial membrane; pectoral fins short (comprised from 1.0 to 1.2 times in head length); scales small and cycloid; curved part of lateral line with 45-55 scales and 0-3 scutes, straight part with 0-8 scales and 24-32 scutes (Ref. 57392). Coloration: back brownish to olivaceous, sides light olivaceous to whitish; a narrow yellowish band sometimes extending from head to caudal-fin base; a black spot on upper margin of gill cover; a black blotch with a narrow light distal margin present on second dorsal-fin lobe (Ref. 57392).

Biology     Glossary (e.g. epibenthic)

Form schools. They occur frequently near the bottom, mostly in depths of 30 to 50 m. Also pelagic and found near the surface at times. Entering brackish-water lagoons and estuaries (Ref. 57392). Feed on small fish and invertebrates (Ref. 3195). Spawning grounds are located in shallow waters (Ref. 57055). Eggs are pelagic (Ref. 4233).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: commercial

More information

Common names
Synonyms
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Predators
Ecotoxicology
Reproduction
Maturity
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Fecundity
Eggs
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References
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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.6   ±0.59 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.16-0.3; Fec = 480,000)

Vulnerability (Ref. 59153)
Moderate vulnerability (36 of 100)
Price category (Ref. 80766)
Low