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Oreochromis amphimelas (Hilgendorf, 1905)

Manyara tilapia
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Oreochromis amphimelas
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Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Hilgendorf.

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

; ນ້ຳຈືດ; ນ້ຳກ່ອຍ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ. Tropical; 3°N - 5°S

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Africa: several shallow saline lakes in central Tanzania (Ref. 118630), like lakes Manyara, Eyasi, Kitangiri, Singida and Sulungali (Ref. 5166, 118638).

Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?, range 8 - ? cm
Max length : 28.0 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 4967)

Short description ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 12 - 14; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 10 - 12; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 3; ຄີກົ້ນຂອງປາ: 8 - 11; ສັດທີ່ມີກະດູກສັນຫຼັງ: 30 - 32. Diagnosis: Slender bodied tilapia, characterised by its small eye and slender head profile with terminal mouth (Ref. 118638); further a narrow preorbital bone and scales of nape, dorsum and belly are very small, the transition from flank to belly scales abrupt, along a curve from base of pectoral fin to vent (Ref. 2). The upper profile of the head is nearly horizontal and in specimens larger than 130 mm total length there is a steep rise from the occiput to the dorsal fin; the caudal peduncle is long and dorsal and anal fins do not reach its posterior end when adpressed (Ref. 2). Live territorial males have jet black dorsal fins and are black underneath but are pinkish-red on flank and caudal fin; under stress, such as following capture, the flanks darken and the whole fish appear dark grey, apart from the reddish tailfin; females and non-territorial males grey/silver with pale ventral region (Ref. 118638).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Found in lakes (Ref. 4967); small bodied forms are present in Lake Eyasi, Lake Manyara and Lake Sulungali, while large bodied forms can be found in Lake Kitangiri and Lake Singida (Ref. 4967, 118638). It is microphagous (Ref. 54840). A maternal mouthbrooder (Ref. 2, 118638). Limited potential as an aquaculture species, it comprises a high proportion of the catch in lakes where it is found (Ref. 118638). IUCN conservation status is endangered, due to restricted distribution, drought and overfishing (Ref. 118638). There is some indication of hybridization with Oreochromis niloticus and O. esculentus (Ref. 118638).

Life cycle and mating behavior Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ

A maternal mouthbrooder (Ref. 118638). Breeding cycle of about 7 weeks; there is evidence of biparental mouthbrooding (Ref. 2).

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ : Kullander, Sven O. | ຜູ້ຮ່ວມມື

Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)

IUCN Red List Status (Ref. 130435)

  Endangered (EN) (B1ab(i,iii,v)); Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

ຂໍ້ມູນຕື່ມອີກ

Trophic ecology
ລາຍການອາຫານ
Diet compositions
Food consumptions
Food rations
ຜູ້ລ້າ
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
ການສືບພັນ
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
ຕົວອ່ອນ
ການປ່ຽນແປງຂອງຕົວອ່ອນ
Anatomy
Gill areas
ສະໝອງ
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
ປະເພດການລອຍ
Swimming speeds
Visual pigment(s)
ສຽງຂອງປາ
Diseases / Parasites
Toxicities (LC50s)
Genetics
ກຳມະພັນ
Electrophoreses
Heritabilities

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.00827 - 0.04391), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (24 of 100).
Nutrients (Ref. 124155):  Calcium = 24.3 [9.2, 128.7] mg/100g; Iron = 1.05 [0.48, 2.47] mg/100g; Protein = 17.3 [15.5, 19.1] %; Omega3 = 0.174 [0.085, 0.377] g/100g; Selenium = 51.6 [24.6, 109.1] μg/100g; VitaminA = 8.8 [1.7, 41.7] μg/100g; Zinc = 1.73 [0.95, 4.05] mg/100g (wet weight);