Mycteroperca fusca (Lowe, 1838)
Island grouper
photo by Hernández-González, C.L.

Family:  Serranidae (Sea basses: groupers and fairy basslets), subfamily: Epinephelinae
Max. size:  80 cm TL (male/unsexed); max.weight: 3,000.0 g
Environment:  demersal; depth range 1 - 200 m
Distribution:  Eastern Atlantic: known with certainty only from the Azores, Madeira, Cape Verde, and the Canary Islands.
Diagnosis:  Dorsal spines (total): 11-11; Dorsal soft rays (total): 14-16; Anal spines: 3-3; Anal soft rays: 10-12. Distinguished by the following characteristics: brownish or dark grey body color of adults with irregular pale blotches and spots and prominent maxillary streak (capable of reversing body color pattern when under stress); juveniles mottled greenish brown, with prominent white spots on head and body, median fins with white streaks and hyaline golden pectoral fins; oblong and compressed body, depth 3.0-3.3 times in SL; head length 2.6-2.9 times in SL; convex interorbital area; enlarged serrae of preopercle at the angle, forming rounded lobe below shallow indentation on vertical limb; few small serrae on subopercle and interopercle; subequal sizes of anterior and posterior nostrils in juveniles, adults with 3 times larger posterior nostrils compared to anterior ones; lower jaws extends well in front of upper jaw (Ref. 89707).
Biology:  Adults occur near the bottom in rocky areas; juveniles are found in tide pools (Ref. 89707). Two specimens collected from the Cape Verde by J. Cadenat were from a depth of '50' m.
IUCN Red List Status: Vulnerable (VU); Date assessed: 20 November 2016 (B2ab(v)) Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 15.04.94
Modified by: Froese, Rainer - 14.09.15
Checked by: Capuli, Estelita Emily - 28.04.94

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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