Lates niloticus, Nile perch : fisheries, aquaculture, gamefish

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Lates niloticus (Linnaeus, 1758)

Nile perch
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عکس ها | Stamps, coins, misc. | تصوير گوگل
Image of Lates niloticus (Nile perch)
Lates niloticus
عکس از Admassu, D.


Tanzania country information

Common names: Chengu, Mkombozi, Sangala
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: highly commercial | Ref: Eccles, D.H., 1992
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Introduced to feed on abundant but unexploited small size haplochromines, to convert them into larger table fish (Ref. 7270). Its introduction to Lake Victoria virtually eliminated numerous unique cichlids in the area and has been the subject of many debates (Ref. 1739). Also Ref. 13624.
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: Eccles, D.H., 1992
National Database:

Common names from other countries

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Carangaria/misc (Various families in series Carangaria) > Latidae (Lates perches)
Etymology: Lates: Latin, lateo, latere = to be hidden.
More on author: Linnaeus.

Environment: milieu / climate zone / تغييرات عمق / distribution range بوم شناسي

; آب شيرين نزديك كف زي; رود رو (Ref. 51243); تغييرات عمق 10 - 60 m (Ref. 34290). Tropical; 27°N - 7°S

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | نقشه نقطه ای | معرفي | Faunafri

Africa: widespread throughout the Nilo-Sudan region of Africa, occurring commonly in all major river basins including Senegal, Niger, Volta, Chad (Ref. 81285, 81652) and Nile (Ref. 3636, 28714, 81652). Found almost everywhere in West Africa, except in Gambia (Ref. 81285). Also present in the Congo basin and lakes Albert, Turkana/Rudolph and Tana (Ref. 3636). Several countries report adverse ecological impact after introduction.

Length at first maturity / Size / Weight / سن

بلوغ: Lm 75.7, range 53 - 85 cm
Max length : 200 cm TL جنس نر / بدون خواص جنسي; (Ref. 58490); common length : 100.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 34290); بيشينه وزن گزارش شده: 200.0 kg (Ref. 3900)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل) : 7 - 8; شعاع نرم باله پشتي (کل) : 8 - 14; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 7 - 9. Diagnosis: mouth large and protrusible (Ref. 28714, 81285, 81652), lower jaw (slightly) prominent (Ref. 81285, 81652). Numerous villiform teeth present in jaws, on palate (Ref. 81285, 81652) and vomer (Ref. 81652). Preorbital/lachrymal (Ref. 4967, 81652) and preopercle (Ref. 4967, 81285, 81652) denticulate. Strong, prominent opercular spine present (Ref. 4967, 81285, 81652) on free edge of opercle, and a smaller one dorsal to it (Ref. 81652). Dorsal fin divided by a deep notch into anterior spiny and posterior soft-rayed sections; anal fin with 3 spines; pelvics with a spine and situated close to the pectorals (Ref. 28714). Caudal fin rounded (Ref. 4967, 81285, 81652). Scales ctenoid, 54-74 along lateral line, followed by 6-8 pored scales on caudal-fin base; ceratobranchial (lower limb) of first gill arch with 12-14 gill rakers (Ref. 81285). Coloration: body uniformly silvery (Ref. 81285) or dark greyish-blue dorsally, greyish-silver on flank and ventrally (Ref. 34290, 81652). Fins greyish; interior of eye conspicuously yellowish (Ref. 81285). Juveniles brownish with lighter marbling (Ref. 81285) on head and flanks (Ref. 81652).
Body shape (shape guide): fusiform / normal; Cross section: compressed.

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

Inhabits channels, lakes and irrigation canals (Ref. 28714, 81652). Adults inhabit deep water, while juveniles are found in shallow water (Ref. 81652). Feeds on fish especially clupeids and Alestes (Ref. 13851). Smaller fish also feed on larger crustaceans and insects; juveniles are planktivorous (Ref. 28714). Threatened due to over harvesting (Ref. 58490). No length type given but assumed to be in TL. Maximum reported size of 180.0 cm corresponding to a weight of 164 kg in Lake Albert (Ref. 81285).

Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré, 1988. État des connaissances sur la faune ichtyologique des bassins côtiers de Côte d'Ivoire et de l'ouest du Ghana. Rev. Hydrobiol. Trop. 21(3):221-237. (Ref. 272)

وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-1)

  حداقل نگرانی (LC) ; Date assessed: 15 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

  Potential pest





استفاده انسانی

ماهي گيري – شيلات: با ارزش تجاري بالا; آبزي پروري: تجاري; ماهي ها ي سرگرم كننده: بله
FAO - Aquaculture systems: production; ماهي گيري – شيلات: landings, نمايه گونه; Publication: search | FishSource |

اطلاعات بيشتر

بوم شناسي
بوم شناسي
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
بازسازی
فراواني
Life cycle
تولید مثل
بلوغ
Maturity/Gills rel.
Fecundity
تخم ریزی
Spawning aggregations
تخم ها
نمو تخم
توزاد ( لارو)
پويايي لاروي
Anatomy
منطقه آبششي
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
ژنتيك
ژنوم
ژنتيك
Heterozygosity
وارث
Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.
Outreach
همكاران
مراجع
مراجع

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

Estimates based on models

Phylogenetic diversity index (مرجع 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00765 - 0.01249), b=3.00 (2.94 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (مرجع 69278):  4.5   ±0.8 se; based on diet studies.
جهندگی (مرجع 120179):  متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (K=0.17-0.19; tm=2-3).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (47 of 100). 🛈
طبقه قيمت (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 107 [24, 225] mg/100g; Iron = 1.42 [0.71, 3.32] mg/100g; Protein = 20 [19, 22] %; Omega3 = 0.385 [0.158, 0.967] g/100g; Selenium = 216 [57, 655] μg/100g; VitaminA = 18.9 [4.3, 99.4] μg/100g; Zinc = 0.698 [0.288, 1.528] mg/100g (wet weight); based on nutrient studies.