Serranochromis robustus, Yellow-belly bream : fisheries, gamefish

Serranochromis robustus (Günther, 1864)

Yellow-belly bream
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Image of Serranochromis robustus (Yellow-belly bream)
Serranochromis robustus
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Clasificación / Nombres Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Serranochromis: Latin, serra = saw + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Günther.

Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología

; agua dulce demersal; rango de profundidad 2 - ? m. Tropical; 24°C - 26°C (Ref. 2059); 11°S - 21°S

Distribución Territorios | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

Africa: Lake Malawi, rivers flowing into it, and the outflowing Shire River and Lake Malombe (Ref. 39192, 52193, 55954, 79521, 97235, 128638). It was introduced from Lake Malawi into the upper Ruo River in Malawi (Ref. 7248), and Sand River Dam in Swaziland (Ref. 7248, 128638), where it established and spread into the Komati River system in South Africa (Ref. 128638); verbal reports from Mozambique indicate the species has recently spread onto the Mozambique coastal plain (Ref. 128638). Serranochromis species in the Luangwa River may be S. robustus based on photographs taken by anglers, but specimens ar nedded to confirm this (Ref. 128638).

Longitud en la primera madurez / Tamaño / Peso / Edad

Madurez: Lm 26.5, range 25 - 27.5 cm
Max length : 56.0 cm TL macho / no sexado; (Ref. 40637); peso máximo publicado: 6.1 kg (Ref. 7248)

Descripción breve Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 15 - 16; Radios blandos dorsales (total) : 13 - 16; Espinas anales: 3; Radios blandos anales: 10 - 11. Diagnosis: The presence of four or five scale rows between the posterior margin of the orbit and the ascending arm of the preoperculum, the presence of widely set unicuspid teeth on the jaws, widely separated gill rakers, and anal fins with egg ocelli places this species in Serranochromis (Ref. 128638). Breeding males of S. robustus possess ocelli that are restricted to the posterior 4-5 membranes of the anal fin, which delimits them from all other Serranochromis species, which have ocelli throughout the anal fin in breeding males, with the exception of S. jallae (Ref. 128638). Serranochromis robustus generally has a longer lower jaw than S. jallae, 50.7-59.6% of head length vs. 49.2-52.7%; it is not as deep-bodied as S. jallae as evidenced by the distance between the posterior insertion of the dorsal fin and the posterior insertion of the anal fin, 13.4-15.1% of standard length in S. robustus vs. 14.9-18.4% in S. jallae; additionally, S. robustus has a narrower least caudal peduncle depth than S. jallae, 10.9-12.8% of standard length vs. 11.3-14.2%, the least caudal peduncle depth of all S. robustus was less than 12.8% of standard length while for S. jallae, except for the smallest specimen, the least caudal peduncle depth was greater than 13.2%; Serranochromis robustus has a smaller horizontal eye diameter than S. jallae, 17.7-27.4% of head length vs. 18.6-25.5%; in general, S. robustus has more teeth in the outer row of the left lower jaw than S. jallae, 14-23 vs. 13-14 (Ref. 128638). Adults in breeding colour of Serranochromis robustus are blue/green laterally with a narrow yellow marginal band on the dorsal fin and usually a small yellowish tip to the upper caudal-fin lobe; adults in breeding colour of S. jallae are yellow/green laterally with a bright orange marginal band on the dorsal and caudal fins in fish from the Okavango River system, but creamy yellow bands in fish from the upper Zambezi River system; the throat and belly of S. jallae becomes more intensely yellow-orange in breeding dress hence the local name 'yellow-belly'; rarely, specimens from the Okavango River in Namibia also have yellow rather than orange marginal bands (Ref. 128638).


Body shape (shape guide): fusiform / normal; Cross section: oval.

Biología     Glosario (por ej. epibenthic)

It occupies mostly complex habitats in water shallower than 10 m; mostly found near river outlets and in the southern part of Lake Malawi; in southern Lake Malawi it is generally associated with the rock/sand interface or, associated with submerged aquatic vegetation and among reed beds in shallow water and inlets (Ref. 5595, 128638). Present in calm coves or slow flowing sections of rivers with vegetation; not common in Lake Malawi, but abundant in larger rivers (Ref. 4967). Piscivore, hunting mbuna and sand-dwelling haplochromines; mouthbrooder (Ref. 5595). Oviparous (Ref. 205). Breeds in summer (Ref. 7248).

Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Oviparous (Ref. 205). Females incubate the eggs in the mouth (Ref. 50828).

Referencia principal Suba sus referencias | Referencias | Coordinador : Kullander, Sven O. | Colaboradores

Snoeks, J. and M. Hanssens, 2004. Identification guidelines to other non-mbuna. p.266-310. In Snoeks, J. (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA, 360p. (Ref. 55954)

Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))

  Critically Endangered (CR) (A2c+3cde); Date assessed: 20 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Amenaza para el ser humano

  Harmless





Usos humanos

Pesquerías: comercial; pesca deportiva: si
FAO - Sistemas de acuicultura: production search; Publication: search | FishSource |

Más información

Ecología Trófica
Alimentos (presas)
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consumo de alimento
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Herramientas

Libro electrónico | Guía de campo | Claves de identificación | Asistente para frecuencias de tallas | Herramienta de ciclo de vida | Mapa de puntos | Catch-MSY |

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Fuentes de Internet

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Sistemas de acuicultura: production search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árbol de la vida | Wikipedia: Go, búsqueda | World Records Freshwater Fishing | Expediente Zoológico

Estimaciones basadas en modelos

Índice de diversidad filogenética
(Referencia 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.01288 (0.00720 - 0.02306), b=3.02 (2.87 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico
(Referencia 69278) 		4.1   ±0.67 se; based on food items.
Generation time 2.2 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resiliencia
(Referencia 120179) 		Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.51; tm=3).
Vulnerabilidad pesquera
(Ref. 59153) 		Low vulnerability (25 of 100). 🛈
Categoría de precios
(Ref. 80766) 		Unknown.