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Polysteganus coeruleopunctatus (Klunzinger, 1870) Blueskin seabream |
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photo by
First, D. |
| Family: | Sparidae (Porgies) | |||
| Max. size: | 60 cm TL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range - 500 m | |||
| Distribution: | Western Indian Ocean aand East Africa: including the Red Sea and probably Kenya. | |||
| Diagnosis: | Dorsal spines (total): 12-12; Dorsal soft rays (total): 10-10; Anal spines: 3-3; Anal soft rays: 8-8. This species is distinguished from its congeners by the following set of characters: scale rows above lateral line 6½; scales rows between 5th dorsal-fin spine base and lateral-line scale 5½ or 6½; pored lateral-line scales 51 or 52; suborbital depth subequal to or greater than the orbit diameter; dorsal-fin rays are reddish pink as well as similar reddish pink on upper margin dorsal-fin ray (no clear yellow or faint yellowish); body with 7 or 8 faint irregular blue spotted lines, not visible from all angles; reddish membranes on caudal-fin lobes and caudal fin with clear white lowest margin of lower caudal fin lobe; without blue iridescence on each scale of dorsal and lateral sides of whitish pink body; canines are large, both upper and lower canines on both jaws usually visible even when mouth closed; body deep 44-46% (mean 44%) of SL; anal- and pelvic- fin rays are whitish or reddish hyaline; no yellow (white) rear margin of branchiostegal rays and membrane; weak bony bulge present before and above eye, forming a low median ridge in larger specimens of over 30 cm SL; caudal fin is moderately forked (Ref. 106993). | |||
| Biology: | Occurs mainly in deep waters around reefs (Ref. 30573). Carnivorous predator (Ref. 30573). Sold fresh in markets. | |||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 11 July 2024 Ref. (130435) | |||
| Threat to humans: | harmless | |||