Age, growth, and survival of tilapia mossambica (Peters) in Egyptian ponds
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Age, growth, and survival of tilapia mossambica (Peters) in Egyptian ponds by R. Koura

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Published by Extension Dept., Editing and Publication Section in Cairo .
Written in English



  • Egypt.


  • Tilapia mossambica,
  • Fish-culture -- Egypt,
  • Temperature -- Physiological effect

Book details:

Edition Notes

Statementby R. Koura and A. R. el Bolock.
Contributionsel-Bolock, A. R., joint author.
LC ClassificationsQL638.C55 K68
The Physical Object
Pagination18 p.
Number of Pages18
ID Numbers
Open LibraryOL5083012M
LC Control Number74154083

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  Ecology: Considered a hardy species and very tolerant of high salinities, including growth and reproduction at 35‰ and survival up to ‰ (Brock ; Dial and Wainright ; Stickney ). However, the Mozambique tilapia reportedly does not survive temperatures below about 10°C (Talwar and Jhingran ). A true detritivore, with the ability to assimilate free nonprotein amino . A three months study was conducted in cemented tanks (ftD7;ftD7;ft) to investigate the effect of different salinity levels on growth performance and survival of Nile tilapia.   Tilapia catches in rivers in August averaged only 6% male. During –, the tilapia population consisted essentially of only the and year classes. Harsh conditions at the Salton Sea have led to erratic reproduction and survival rates and unstable age Cited by: niloticus) and Mozambique tilapia (Oreochromis mossambicus) in a biofloc technology (BFT) system and a recirculation aquaculture system (RAS) on water quality, fish robustness, productivity, growth performance, feed conversion and the cost-effectiveness of .

Reaches sexual maturity at 15 centimeter length (Ref. ), but stunted fish may breed at centimeters and at an age of just over 2 months (Ref. ). Fecundity high (Ref. ). Extended temperature range °C, natural temperature range °C (Ref. 3), with salinity-dependent difference in temperature tolerance (Ref. 2, 23). of O. mossambica) (Saha et al., ). For this reason, and to attain maximum growth, crude fiber levels in tilapia diets should probably not exceed 5% (Anderson et al., ). The relationship between concentrations of dietary protein and energy is important in fish nutrition. Diets should be balanced to maximize the use of protein for.   Bruton M.N., and B.R. Allanson. The growth of Tilapia mossambica Peters (Pisces: Cichlidae) in Lake Sibaya, South Africa. Journal of Fish Biology Bruton M.N., and R.E. Boltt. Aspects of the biology of Tilapia mossambica Peters (Pisces: Cichlidae) in a natural freshwater lake (Lake Sibaya, South Africa). Journal of Fish. The Mozambique tilapia reaches sexual maturity at a smaller size and younger age than the Nile and Blue tilapias. Tilapia populations in large lakes mature at a later age and larger size than the same species raised in small farm ponds. For example, the Nile tilapia matures at about 10 to 12 months and 3/4 to 1 pound ( to grams) in.

The objective of this study was to follow up the growth performance and gonads development of sex reversed male Nile tilapia. Fish fed commercial diet contained 30% crude protein at a rate of 3%.   Generally, the highest values of growth parameters and survival rates of the larvae of Nile tilapia, Oreochromis niloticus, were recorded at the dietary dose of 60 mg of 17α-MT/kg diet compared to the control, 40 and 80 mg of 17α-MT/kg diet af 35 and 75 days posthatching (Table 1, Table 2, Table 3, Table 4). The Mozambique tilapia (Oreochromis mossambicus) is an oreochromine cichlid fish native to southeastern Africa. Dull colored, the Mozambique tilapia often lives up to a decade in its native habitats. It is a popular fish for to human introductions, it is now found in many tropical and subtropical habitats around the globe, where it can become an invasive species because of its. The present experiment was conducted to study the rate of growth of this euryhaline "''"'"'"""" in fresh water and in different salinities and also test whether this fish attains a larger in the more saline medium. Tilapia fry vvere obtained from the Beira Lake in Colombo by means of a plankton net.