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Oreochromis mossambicus  (Peters, 1852)

Mozambique tilapia
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Oreochromis mossambicus
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country information

Common names: [No common name]
Occurrence:
Salinity:
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
National Database:

Classification / Names

Lớp phụ (Subclass) cá vây tia > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Тилапия мозамбикская, Tilapia du Mozambique, Tilapia del Mozambique, ... more

Issue
Oreochromis mossambicus bassamkhalafi is placed only under the genus Oreochromis in Eschmeyer (CofF ver. May 2011: Ref. 86870). It is treated here questionably a synonym of Oreochromis mossambicus.

Main reference

Trewavas, E. 1982. (Ref. 1)
 Các tài liệu tham khảo | Biblio | Người điều phối : Kullander, Sven O. | Người cộng tác

Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Max length : 39.0 cm SL con đực/không giới tính; (Ref. 21); common length : 35.0 cm TL con đực/không giới tính; (Ref. 9987); Khối lượng cực đại được công bố: 1.1 kg (Ref. 40637); Tuổi cực đại được báo cáo: 11 các năm (Ref. 164)

Length at first maturity
 Lm 15.4, range 6 - 28 cm

Môi trường

; Nước ngọt; Thuộc về nước lợ Sống nổi và đáy; sống cả ở nước ngọt và nuớc mặn (Ref. 51243); Mức độ sâu 1 - 12 m (Ref. 57895)

Khí hậu / Phạm vi

Tropical; 17°C - 35°C (Ref. 3), preferred ?; 13°S - 35°S, 180°W - 180°E

Sự phân bố

Africa: Lower Zambezi, Lower Shiré and coastal plains from Zambezi delta to Algoa Bay. Occurs southwards to the Brak River in the eastern Cape and in the Transvaal in the Limpopo system (Ref. 6465). Widely introduced for aquaculture, but escaped and established itself in the wild in many countries, often outcompeting local species (Ref. 12217). Several countries report adverse ecological impact after introduction.
 Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Những chỉ dẫn

Short description

Các tia vây lưng cứng (tổng cộng): 15 - 18; Các vây lưng mềm (tổng cộng): 10-13; Tia cứng vây hậu môn 3; Tia mềm vây hậu môn: 7 - 12; Động vật có xương sống: 28 - 31. Diagnosis: snout long; forehead with relatively large scales, starting with 2 scales between the eyes followed by 9 scales up to the dorsal fin (Ref. 3058, 3060). Adult males develop a pointed, duckbill-like snout (Ref. 52307) due to enlarged jaws, often causing the upper profile to become concave (Ref. 2, 7248, 12524, 13337, 52307), but upper profile convex in smaller specimens (Ref. 1870, 6460). Pharyngeal teeth very fine, the dentigerous area with narrow lobes, the blade in adults longer than dentigerous area; 28-31 vertebrae; 3 anal spines; 14-20 lower gill-rakers; genital papilla of males simple or with a shallow distal notch; caudal fin not densely scaled; female and non-breeding male silvery with 2-5 mid-lateral blotches and some of a more dorsal series; breeding male black with white lower parts of head and red margins to dorsal and caudal fins (Ref. 2).

Sinh học     Tự điển (thí dụ epibenthic)

Adults thrive in standing waters (Ref. 7248, 12501). Inhabit reservoirs, rivers, creeks, drains, swamps and tidal creeks; commonly over mud bottoms, often in well-vegetated areas (Ref. 44894). Also found in warm weedy pools of sluggish streams, canals, and ponds (Ref. 5723). Most common in blind estuaries and coastal lakes (Ref. 32693), but usually absent from permanently open estuaries and open sea (Ref. 6465) and from fast-flowing waters (Ref. 7248, 12501). Normally not found at high altitudes (Ref. 6465). Able to survive extreme reduction of temporary water bodies (Ref. 2, 27445). Highly euryhaline (Ref. 2, 3, 23, 58, 61, 6465, 12501, 12522, 12524, 13337, 27445, 55352). Grow and reproduce in fresh-, brackish and seawater (Ref. 2, 21, 23, 61, 5214, 27445, 36683, 54362). Can be reared under hyper-saline conditions (Ref. 4537, 44894, 52307). Tolerate low dissolved oxygen levels (Ref. 3, 23, 6465) and can utilise atmospheric oxygen when water oxygen levels drop (Ref. 61, 6465). Mainly diurnal. May form schools (Ref. 3, 4537, 44894). Omnivorous (Ref. 21, 12524), feed mainly on algae and phytoplankton (Ref. 4537, 7248, 12501, 12522, 12524, 13337, 36683, 44894, 52307) but also take some zooplankton, small insects and their larvae (Ref. 4537, 7248, 12524, 13337, 44894, 52307), shrimps (Ref. 12524, 13337), earthworms (Ref. 12501) and aquatic macrophytes (Ref. 6465). Juveniles carnivorous/omnivorous, adults tend to be herbivorous or detritus feeders (Ref. 2, 6465, 13517). Large individuals have been reported to prey on small fishes (Ref. 2, 6465, 12501, 12522), and occasionally cannibalise their own young (Ref. 2, 6465). Exhibit considerable plasticity in their feeding habits (Ref. 6465, 13544) as well as in their reproductive biology (Ref. 13544). Polygamous (Ref. 12524, 13337), maternal mouthbrooder (Ref. 1, 5214, 12524, 13337). Reach sexual maturity at 15 centimeter length (Ref. 44894), but stunted fish may breed at 6-7 centimeters and at an age of just over 2 months (Ref. 52307). Fecundity high (Ref. 55352). Extended temperature range 8-42 °C, natural temperature range 17-35°C (Ref. 3), with salinity-dependent difference in temperature tolerance (Ref. 2, 23). Somewhat aggressive toward other species (Ref. 36683). Marketed fresh and frozen (Ref. 9987). Excellent palatability (Ref. 6465), with small head and large dress-out weight (Ref. 61), and filets without small bones (Ref. 57960). Used extensively in biological, physiological and behavioural research (Ref. 7248). Translocated and introduced for aquaculture, sport fishing, stocking man-made lakes and biological control of nuisance plants and animals (Ref. 6465). Eurytopic; a most successful and vagile invader (Ref. 6465).

IUCN Red List Status (Ref. 115185)

  Near Threatened (NT) 

Threat to humans

  Potential pest



Human uses

Các nghề cá: tính thương mại cao; Nuôi trồng thủy sản: Tính thương mại; cá để chơi: đúng; Bể nuôi cá: Tính thương mại

Các công cụ

Bio-Quiz | E-book | Hướng dẫn hiện trường | Khóa để định loại | Tần suất chiều dài Wizard | Công cụ của vòng đời | Bản đồ điểm | Classification Tree

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Số liệu điểm | Tên thường gặp | Photos

Các nguồn internet

Alien/Invasive Species database | BHL | BOLDSystems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(Nuôi trồng thủy sản: Sản xuất; Các nghề cá: Sản xuất, species profile; publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Các cơ sở dữ liệu quốc gia | Bể cá công cộng | PubMed | RFE Identification | Scirus | Biển chung quanh ta | SeaLifeBase | Cây Đời sống | uBio | uBio RSS | Wikipedia(Go, tìm) | World Records Freshwater Fishing | Tạp chí Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
 PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Mức dinh dưỡng (Ref. 69278)
 2.2   ±0.0 se; Based on diet studies.

Thích nghi nhanh (Ref. 69278)
 Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.2-0.5; tm<1; tmax=11)

Vulnerability (Ref. 59153)
 Low to moderate vulnerability (32 of 100)
Price category (Ref. 80766)
 Unknown