Thysochromis ansorgii (Boulenger, 1901)

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	Pelmatochromis ansorgii, Thysia ansorgii, Pelmatochromis arnoldi, ... more
Common names	Fünffleckbuntbarsch, 阿氏突颌丽鱼, 安索氏缨丽鱼, ... more

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Main reference

Daget, J. 1991. (Ref. 5706)
Other references | Biblio | Coordinator : Kullander, Sven O. | Collaborators

Size / Weight / Age

Max length : 8.8 cm SL male/unsexed; (Ref. 53405)

Environment

Demersal; freshwater; pH range: 6.0 - 8.0; dH range: 5 - 19

Climate / Range

Tropical; 24°C - 26°C (Ref. 2060); 13°N - 3°N

Africa: Throughout the forested coastal lowlands of Nigeria (Ogun, Oshun, Niger delta, and lower Cross River), coastal basins in Côte d'Ivoire (Agnébi-Me-Bia-Comoé-Tano River), and Benin (Ouémé River) (Ref. 53405).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 13 - 16; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 7 - 8. Description: body laterally compressed; snout slightly rounded, jaws equal; outer and inner jaw teeth unicuspid; inner teeth conical in up to 4 rows; pharyngeal jaw teeth bicuspid; no micro-gillrakers; scales cycloid (Ref. 53405). Coloration: in life: head and back golden-beige, sides silvery-beige, sometimes with rosy-violet hues; scales dark-edged; belly pale beige; middle of sides with 4-7 large, irregular spots, some coalesced into an incomplete mid-lateral band; 3-5 smaller spots between large mid-lateral spots and dorsal fin, more or less distinct depending on state of the fish; dark band from eye to upper jaw (Ref. 53405). Males: soft parts of dorsal and anal fins, as well as caudal fin, covered with small spots forming reticulate pattern; distal margin of spinous part of dorsal fin red, with iridescent blue submarginal band that extends unto margin of soft part of fin; upper margin of caudal of same colour as dorsal-fin margin; pelvic fins greyish, anterior margin bluish-black (Ref. 53405). Females: reticulate pattern on vertical fins reduced or absent; margins of dorsal and caudal fins usually brighter red than in males; series of 5-7 silvery-white scales just above belly; whitish spot often present above anus (Ref. 53405).

Maximum TL was recorded at 12.0-13.0 cm (Ref. 5706).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries:


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (13 of 100)	Not marketed/unknown

Entered by Sa-a, Pascualita

Modified by Musschoot, Tobias

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Page last modified by : elaxamana, 15 July 2009

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