Habitat and Ecology
From 100 to 150 meters.
Habitat: reef-associated. White-edged rockcod. Attains 90 cm. Known only from southern Mozambique to East London. Common in 10 - 70 metres. Found over rocks and corals at depths of at least 100 m. Feeds mainly on benthic invertebrates, also on fishes and squids.
Molecular Biology and Genetics
Barcode data: Epinephelus albomarginatus
Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.
See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
Statistics of barcoding coverage: Epinephelus albomarginatus
Public Records: 5
Specimens with Barcodes: 5
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
Although there is no evidence for a decline in extent of occurrence, the species has a very restricted range. The reported range is from 24°50'S to 33°S (Heemstra and Randall 1993). The species mainly occurs in water depths from 30-80 m, and, based on calculated sea floor area to the 100 m isobath, the extent of occurrence of the species is therefore about 16,000 km². The area of occupancy is in reality much less than this, since the species is closely reef-associated, and assuming that 10% of the area of occurrence is reef, then effective habitat (reef) area is about 1,600 km².
This species is classified as Vulnerable as current data indicate a population reduction down to 23% of spawning biomass and hence > 30% population reduction is inferred due to fishing over a 10 year or three generation period where the time period includes both the past and the future, and fishing effort has increased. The species has a highly limited geographic range for a pelagic spawner but, although the EOO and AOO are small and would also qualify the species under B2b(v), there is no evidence of fluctuations or fragmentation.
Relevance to Humans and Ecosystems
Epinephelus albomarginatus (captain fine, white-edged grouper or white-edged rockcod) is a species of fish in the Serranidae family. It is found in Mozambique and South Africa. Its natural habitats are coral reefs.
- Fennessy, S. 2004. Epinephelus albomarginatus. 2006 IUCN Red List of Threatened Species. Downloaded on 4 August 2007.
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