Acanthistius joanae, Scalyjaw koester

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Acanthistius joanae Heemstra, 2010

Scalyjaw koester
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Acanthistius joanae   AquaMaps   Data sources: GBIF OBIS
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Image of Acanthistius joanae (Scalyjaw koester)
Acanthistius joanae
Female picture by Heemstra, P.C.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Serranoidei (Groupers) > Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Acanthistius: Greek, akantha = thorn + Greek, istion = sail (Ref. 45335);  joanae: Named for Joan Wright..

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; pelagic-neritic; depth range 23 - 140 m (Ref. 83528). Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Indian Ocean: South Africa.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 83528)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 14-16; Anal spines: 3; Anal soft rays: 7; Vertebrae: 26. This species is characterized by the following: distinct ctenoid scales cover the interorbital, maxilla, infraorbitals, interopercle, dorsal 4 branchiostegal rays, gular area, isthmus, chest, belly and proximal two-thirds of pectoral fin; interorbital area is slightly convex; longest dorsal fin spine equal to or longer than peduncle depth; Caudal, anal, and pelvic fins are pale (fin rays mostly reddish orange in life); a large oval, blackish brown blotch (most prominent dark mark on the head) covers most of the opercle; 17-19 pectoral-fin rays (Ref. 83528).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Heemstra, P.C., 2010. Taxonomic review of the perciform fish genus Acanthistius from the east coast of southern Africa, with description of a new species and designation of a neotype for Serranus sebastoides Castelnau, 1861. Zootaxa 2352:59-68. (Ref. 83528)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 17 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 13.6 - 23.9, mean 17.9 °C (based on 8 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref. 69278):  3.7   ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).