Oreochromis karongae, Karonga tilapia : fisheries

You can sponsor this page

Oreochromis karongae (Trewavas, 1941)

Karonga tilapia
muatnaik fotos/gambar dan video
Pictures | imej Google
Image of Oreochromis karongae (Karonga tilapia)
Oreochromis karongae
Picture by Ueberschär, B.

klasifikasi / Names Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | 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: Trewavas.

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

; air tawar bentopelagis; kisaran kedalaman 0 - 50 m (Ref. 118638), usually 0 - 10 m (Ref. 5595). Tropical; 22°C - 28°C; 8°S - 15°S

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Africa: Lake Malawi and its catchment (Ref. 2, 5166, 118630, 118638), including crater lake Itamba and Ikapu (Ref. 118638).

Length at first maturity / Size / Weight / umur

Maturity: Lm 28.9, range 20 - 38 cm
Max length : 42.0 cm TL jantan/; (Ref. 6150); 38.0 cm SL (female)

deskripsi pendek Morfologi | Morfometrik

Duri punggung (Keseluruhan (total)): 15 - 17; duri punggung lunak (Keseluruhan (total)): 10-12; Duri dubur 3; Sirip dubur lunak: 8 - 10; vertebrata, bertulang belakang: 30 - 32. Diagnosis: A heavily-built large tilapia species with a wide rounded head and short jaws; individuals vary a lot in dentition, with some having very wide bands of jaw teeth (Ref. 118638). Head length 30.8-36.0% of standard length; lower pharyngeal with large toothed area with straight or slightly convex sides; median length of pharyngeal bone 1.14-1.32 times its width and 38.2-42.2% of head length; blade 1.0-1.7 times median length of toothed area; length of lower jaw 28.4-34.5% of head length; teeth of jaws in 4-6 rows (Ref. 2). Females and juveniles with greyish-brown bodies and 4-5 vertical bars (Ref. 118638). Males are black with a white margin to the dorsal and tailfins; the genital tassel can be long and branched and pinkish to bright yellow (Ref. 2, 118638). It is one of the 'chambo' group Oreochromis from the Lake Malawi catchment; females and non-territorial males cannot be reliably distinguished from those of Oreochromis squamipinnis; females and non-territorial males from Lake Ikapu are a bright golden colour (Ref. 118638).

Biologi     Daftar kata (contoh epibenthic)

It is found in all kinds of habitats; it has been observed in shallow vegetated bays, in intermediate habitats, over sand, and in purely rocky biotopes (Ref. 5595). At most locations it is found at shallow levels, rarely deeper than 10 metres (Ref. 5595), but it can be present from the surface waters to depths of 40-50m (Ref. 118638). It feeds on phytoplankton and on diatom sediment on the sand; the so-called 'multitooth' morph at Cape Maclear grazes from rocks and might harvest the loose aufwuchs (Ref. 5595). A maternal mouthbrooder; males defend territories from shallow water down to at least 28m; males dig pits, which are sometimes huge craters with a small raised platform of fine sand (Ref. 118638). It is an important component of the fisheries catch in Lake Malawi (Ref. 118638). The IUCN conservation status is rated as endangered, based on declining fishery catches due to overfishing (Ref. 118638).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

A maternal mouthbrooder; males defend territories from shallow water down to at least 28m; males dig pits, which are sometimes huge craters with a small raised platform of fine sand (Ref. 118638). Breeding period extends over several months as noted in Lake Malombe, at present one of the main breeding areas for this species (Ref. 6150). Males build nests on a variety of substrata and at depths of 0.5m to at least 28m; nests generally 0.3-1.9m diameter, with dimensions correlated to male size (Ref. 55079). Nest with a characteristic spawning cone in its center (Ref. 5595). Courtship appears to occur mainly in the early morning (Ref. 40193, 55079), and consist of leading, followed by tilting and head-down quivering if the female follows the male to the nest (Ref. 40193). A female with 324 young of 15mm long in the mouth has been caught (Ref. 2781). Females keep guarding their fry until they are about 24 mm (Ref. 2781, 6150).

rujukan utama Upload your references | Acuan | Koordinator : Kullander, Sven O. | mitra

Trewavas, E. and G.G. Teugels, 1991. Oreochromis. p. 307-346. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Checklist of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5166)

Status IUCN Red List (Ref. 130435)

  sangat terancam (CR) (A2d); Date assessed: 22 May 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

Perikanan: komersial
FAO - Publication: search | FishSource |

informasi lanjut

Nama-nama umum
Sinonim (persamaan)
metabolisme
Pemangsa
Ekotoksikologi
Reproduksi, perkembang biakan
Kematangan
Pemijahan
Spawning aggregation
Fecundity
telur-telur
pekembangan telor
Umur / Saiz
Pertumbuhan
panjang-berat
panjang-panjang
ukuran frekuensi
Morfometrik
Morfologi
Larva
Dinamika larva
pemulihan
Kelimpahan
BRUVS
Acuan
Budidaya air
profil budidaya air
Strain
Genetika
Electrophoreses
Diturunkan
Penyakit-penyakit
Pengolahan
Nutrients
Mass conversion
mitra
Gambar
Stamps, Coins Misc.
Suara-suara
Ciguatera
Kecepatan
Tipe renang
Area insang
Otoliths
Otak
Penglihatan / visi

Alat, peralatan

laporan khas

muat turun XML

Sumber internet

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genom, Nukleotida | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Zoological Record

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=0.01259 (0.00716 - 0.02213), b=2.96 (2.82 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
Daya lenting (Ref. 120179):  sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (K=0.24-0.56).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100).
kategori harga (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 14 [6, 73] mg/100g; Iron = 1.21 [0.54, 2.88] mg/100g; Protein = 17.9 [16.2, 19.7] %; Omega3 = 0.387 [0.134, 1.079] g/100g; Selenium = 85 [31, 197] μg/100g; VitaminA = 19.7 [4.5, 81.8] μg/100g; Zinc = 2.06 [1.13, 4.89] mg/100g (wet weight);