| Ecological Descriptors
(Co, S )
|39 (max 70)
||Veg (Cru, Mol)
Body uniformly gray to silver, more or less rounded/ discoid in outline (shape of a rugby/ American football). Silvery blue-qrey with 23-29 gold to brassy lines along body, those above lateral line curved like that line, a gold or brassy stripe under eye. Rear dorsal and anal fins tight to body, forming an "X" in alignment with tail fin margins in mid caudal peduncle. Can be dark/ brown with pale spots.
Aggregate over hard, algal coated bottoms of exposed surf-swept outer reef flats, lagoons, and seaward reefs to a depth of at least 24 m. Found in exposed areas around rocky reefs. Adults usually close to the shore and the coastline, while juveniles are associated with flotsam and can be encountered in the open ocean close to the surface. Benthopelagic. Usually in groups. Young (up to 5 cm) found among floating seaweed; feeding on small crustaceans. Adults are carnivorous during summer and autumn but feed on algae during winter.
During each month of the spawning season, chubs are most abundant starting the day of the full moon; group size increases as fish move through the day toward core spawning sites, typically exceeding a group of more than 150 individuals. It displays distinctive colour patterns during spawning
(C) Rainer Kretzberg
Synonyms - Brassy Chub: