Synopsis
The reproductive biology, growth and age composition ofOreochromis mossambicus (Peters) were studied in two Brisbane reservoirs during 1981–1983. The life history was assessed in terms of altricial and precocial tendencies after Noakes & Balon (1982). Fish from both reservoirs had a precocial life history style, showing delayed maturation at 12–15 months, at minimum sizes of 152 mm standard length in males and 174 mm standard length in females. The minimum size of fish at maturity was 0.51–0.73 of maximum size. Mean fecundity was 1360 (± 117.2 standard error) in North Pine Dam and 2107 (220.4 standard error) in Tingalpa Reservoir. This difference was significant (p<0.01). Oöcyte diameter ranged from 1.7–2.6 mm. Overall sex ratio was 1:1 but males predominated amongst fish larger than 200 mm standard length. Stocks consisted mainly of three age groups and the oldest fish caught were 3+ years old. Growth rates were high in both populations. Length-weight relationships conformed to the allometric formula W = aLn and were consistent with data on growth rates. High growth rates are attributed to the high productivity of both reservoirs and the small size of the populations relative to food resources, which are not utilized directly by other fishes. These factors probably also account for the precocial life history style exhibited, compared to the altricial life history style ofO. mossambicus in Lake Sibaya, South Africa, a food-restricted environment.
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References cited
Arthington, A.H., R.J. McKay, D.J. Russell & D.A. Milton. 1984. Occurrence of the introduced cichlid Oreochromis rnossambicus (Peters) in Queensland. Aust. J. Mar. Freshwat. Res. 35: 267–272.
Balon, E.K. 1979. The juvenilization process in phylogeny and the altricial to precocial forms in the ontogeny of fishes. Env. Biol. Fish. 4: 193–198.
Balon, E.K. 1981. Saltatory processes and altricial to precocial forms in the ontogeny of fishes. Amer. Zool. 21: 573–596.
Bowen, S.H. 1979. A nutritional constraint in detritivory by fishes: the stunted population of Sarotherodon mossambicus in Lake Sibaya, South Africa. Ecological Monographs 49: 17–31.
Bowen, S.H. 1982. Feeding, digestion and growth — qualitative considerations. pp. 141–156. In: R.S.V. Pullin & R.H. Lowe-McConnell (ed.), The Biology and Culture of Tilapias. ICLARM, Manila.
Bowen, S.H. & B.R. Allanson. 1982. Behavioral and trophic plasticity of Tilapia mossambica in utilization of the unstable littoral habitat. Env. Biol. Fish. 7: 357–362.
Bruton, M.N. 1979. he fishes of Lake Sibaya. pp. 162–245. In: B.R. Allanson (ed.), Lake Sibaya. Dr W. Junk Publishers, The Hague.
Bruton, M.N. & B.R. Allanson. 1974. The growth of Tilapia mossambica Peters (Pisces: Cichlidae) in Lake Sibaya, South Africa. J. Fish Biol. 6: 701–715.
Bruton, M.N. & R.E. Boltt. 1975. Aspects of the biology of Tilapia mossambica Peters (Pisces: Cichlidae) in a natural freshwater lake (Lake Sibaya, South Africa). J. Fish Biol. 7: 423–446.
Dadzie, S. 1969. Spermatogenesis and the stages of maturation in the male cichlid fish Tilapia mossambica. J. Zool. Lond. 159: 399–403.
Dadzie, S. 1974. Oogenesis and the stages of maturation in the female cichlid fish, Tilapia mossambica. Ghana J. Sci. 14: 23–31.
De Silva. S.S. & J. Chandrasoma. 1980. Reproductive biology of Sarotherodon mossambicus, an introduced species, in an ancient man-made lake in Sri Lanka. Env. Biol. Fish. 5: 253–259.
Fernando, C.H. 1971. The role of introduced fish in fish production in Ceylon's freshwaters. pp. 295–310. In: E. Duffey & A.S. Watt (ed.), The Scientific Management of Animal and Plant Communities for Conservation. Blackwell, Oxford.
Fernando, C.H. & H.H. A. Indrasena. 1969. The freshwater fisheries of Ceylon. Bull. Fish. Res. St. Ceylon 20: 101–134.
Fryer, G. & T.D. Iles. 1972. The cichlid fishes of the Great Lakes of Africa: their biology and evolution. Oliver and Boyd, Edinburgh. 641 pp.
Hodgkiss, I.J. & H.S.H. Man. 1977. Age composition, growth and body condition of the introduced Sarotherodon mossambicus (Cichlidae) in Plover Cove Reservoir. Hong Kong. Env. Biol. Fish. 2: 35–44.
Hodgkiss, I.J. & H.S.H. Man. 1978. Reproductive biology of Sarotherodon mossambicus (Cichlidae) in Plover Cove Reservoir, Hong Kong. Env. Biol. Fish. 3: 287–292.
King, C. 1979. Secondary productivity of North Pine Dam. Australian Water Resources Council Technical Report 39, Aust. Govt. Publishing Service, Canberra. 75 pp.
Lea, E. 1910. On the methods used in herring-investigations. Publ. Circonst. Con. Perm. Int. Explor. Mer. 53: 7–174.
Le Roux, P.J. 1961. Growth of Tilapia mossambica in some Transvaal impoundments. Hydrobiologia 18: 165–175.
Lowe-McConnell, R.H. 1975. Fish communities in tropical freshwaters: their distribution and evolution. Longman, London. 337 pp.
Lowe-McConnell, R.H. 1982. Tilapias in fish communities. pp. 83–114. In: R.S.V. Pullin & R.H. Lowe-McConnell (ed.), The Biology and Culture of Tilapias. ICLARM, Manila.
Man, H.S.H. & I.J. Hodgkiss. 1977. Studies on the ichthyofauna in Plover Cove Reservoir, Hong Kong: I. Sequence of fish population changes. J. Fish Biol. 10: 493–503.
Milton, D.A. & A.H. Arthington. 1983. Reproductive biology of Gambusia affinis Baird and Girard. Xiphophorus helleri (Günther) and X. maculatus (Heckel) (Pisces: Pocciliidae) in south-eastern Queensland, Australia. J. Fish Biol. 23: 23–41.
Neil, E.H. 1966. Observations on the behavior of Tilapia mossambica (Pisces, Cichlidae) in Hawaiian ponds. Copeia 1966 1: 50–56.
Noakes, D.L.G. & E.K. Balon 1982. Life histories of tilapias: an evolutionary perspective. pp. 61–82. In: R.S.V. Pullin & R.H. Lowe-McConnell (ed.), The Biology and Culture of Tilapias. ICLARM, Manila.
Pannikar, N.K. & P.R.S. Tampi. 1954. On the mouth-breeding cichlid, Tilapia mossambica Peters. Indian J. Fish. 1: 217–230.
Riedel, D. 1965. Some remarks on the fecundity of Tilapia (Tilapia mossambica Peters) and its introduction into middle central America (Nicaragua) together with a first contribution towards the limnology of Nicaragua. Hydrobiologia 25: 357–388.
Trewavas, E. 1966. A preliminary review of fishes of the genus Tilapia in eastward-flowing rivers of Africa, with proposals of two new specific names. Rev. Zool. Bot. Afr. 74: 394–424.
Vaas, K.F. & A.E. Hofstede. 1952. Studies on Tilapia mossambica Peters in Indonesia. Contr. Inl. Fish. Res. St., Bogor (Indonesia) 1: 1–88.
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Arthington, A.H., Milton, D.A. Reproductive biology, growth and age composition of the introducedOreochromis mossambicus (Cichlidae) in two reservoirs, Brisbane, Australia. Environ Biol Fish 16, 257–266 (1986). https://doi.org/10.1007/BF00842980
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DOI: https://doi.org/10.1007/BF00842980