Tanzania country information

Common names: Changu
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref: Carpenter, K.E. and G.R. Allen, 1989
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Questionably from Mafia Island Marine Park (Ref. 51015). Also Ref. 2871.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tz.html
National Fisheries Authority: http://www.isp.msu.edu/AFRICANSTUDIES/PLEA/TAFIRI.HTM
Occurrences: Occurrences Point map
Main Ref: Carpenter, K.E. and G.R. Allen, 1989
National Database:

Common names from other countries

Empereur mahsena, Emperador mahsena, Capitaine, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Lethrinidae (Emperors or scavengers) > Lethrininae
Etymology: Lethrinus: Greek, lethrinia, a fish pertaining to genus Pagellus.

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

seewasser riff-verbunden; standorttreu; tiefenbereich 2 - 100 m (Ref. 9710). Tropical; 28°N - 26°S, 32°E - 82°E

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Indian Ocean: Red Sea and East Africa to Sri Lanka. References to this species from the Central Pacific probably refer to Lethrinus atkinsoni.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m ?, range 19 - ? cm
Max length : 65.0 cm TL Männchen/unbestimmt; (Ref. 2295); common length : 40.0 cm TL Männchen/unbestimmt; (Ref. 2295); max. veröff. Alter: 27 Jahre (Ref. 42001)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 10; Rückenflossenweichstrahlen (insgesamt): 9; Afterflossenstacheln 3; Afterflossenweichstrahlen: 8. Body color is yellow to greenish-blue, becoming lighter ventrally; usually with nine or ten dusky yellow-green or brown bars. The head is purplish gray, sometimes with a red blotch on the nape. A red bar is at the base of pectoral fin, sometimes extending broadly below and above the pectoral fin base to the edge of the operculum. The base of the upper and sometimes lower rays of pectoral fin is red. The base and tips of the pelvic fins are often red. The membranes of the dorsal fin is red (sometimes restricted to the base of the fins). The anal fin is whitish with the membranes between the forward rays often red. The caudal fin, especially the tips is reddish.

Found over reef areas and adjacent sandy and seagrass areas (Ref. 30573, 41878). Feeds mainly on echinoderms (most frequently sea urchins), crustaceans and fishes; mollusks, tunicates, sponges, polychaetes and other worms are consumed in lesser quantities. A protogynous hermaphrodite (Ref. 55367). In most areas of the Red Sea, it is considered an excellent food fish but in certain areas of the Indian Ocean it may have an unpleasant 'coral' smell and taste (Ref. 2295, 11888). Utilized fresh for broiling and baking (Ref. 9987).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Sex change was found to commonly occur between the ages of 5 and 6 years (Ref. 2295). A diandric species (Ref. 55367). Length and age at sex change occur at 32 cm TL and 16 yrs, respectively (Ref. 55367).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Carpenter, K.E. and G.R. Allen, 1989. FAO Species Catalogue. Vol. 9. Emperor fishes and large-eye breams of the world (family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fish. Synop. 125(9):118 p. Rome: FAO. (Ref. 2295)

IUCN Rote Liste Status (Ref. 130435)

stark gefährdet (EN) (A2bd); Date assessed: 28 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: hoch kommerziell; Sportfisch: ja

FAO(Fischereien: production; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 29.2, mean 27.5 (based on 406 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01380 (0.00856 - 0.02227), b=3.01 (2.88 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.33 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.10-0.30; tm=3; tmax=27; Fec=26,700).

Prior r = 0.50, 95% CL = 0.33 - 0.75, Based on 3 stock assessments.

Fishing Vulnerability (Ref. 59153): High vulnerability (65 of 100).

Climate Vulnerability (Ref. 125649): High to very high vulnerability (73 of 100).

Preiskategorie (Ref. 80766): Very high.

Lethrinus mahsena (Fabricius, 1775)