development. Environ. Biol. Fishes 2: 147-176.
Balon, E.K. 1978. Reproductive guilds and the ultimate structure of fish taxocenes:
amended contribution to the discussion presented at the minisymposium. Environ.
Biol. Fishes 3: 149-152.
Balon, E.K. 1979a. The theory of saltation and its application in the ontogeny of fishes:
steps and thresholds. Environ. Biol. Fishes 4: 97-101.
Balon, E.K. 1979b. The juvenilization process in phylogeny and the altricial to precocial
forms in the ontogeny of fishes. Environ. Biol. Fishes 4: 193-198.
Balon, E.K. 1980. Charrs: salmonid fishes of the genus Salvelinus, perspectives in verte-
brate science 1. Dr. W. Junk bv Publ., The Hague.
Balon, E.K. 1981a. About processes which cause the evolution of guilds and species.
Environ. Biol. Fishes 6: 129-138.
Balon, E.K. 1981b. Reproductive guilds of fishes: amendments and an evolutionary pro-
posal. Environ. Biol. Fishes 6. (In press)
- Balon, E.K. 1981c. Saltatory processes and altricial to prbcocial forms in the ontogeny
of fishes. Amer. Zool. 21 (In press)
Balon, E.K. and A.G. Coche, editors. 1974. Lake Kariba: a man-made tropical ecosystem
in Central Africa, Pt. 11. Monographiae Biologicae 24. Dr. W. Junk bv Publ., The
Hague.
Balon, E.K., W.T. Momot and H.A. Regier. 1977. Reproductive guilds of percids: results
of the paleogeographical history and ecological succession. J. Fish. Res. Board Can.
34: 1910-1921.
Banks, J.W., M.J. Holden and R.H. Lowe-McConnell. 1965. Fishery report, p. 21-42. In
E. White (ed.) First Scientific Report Kainji Biological Research Team. Cyclostyled,
University of Liverpool.
Bard, J., P. de Kimpe, J. Lazard, J. Lemasson and P. Lessent. 1976. Handbook of tropical
fish culture. Centre Technique Forestier Tropical, Nogent-sur-Marne, France.
Bardach, J.E., J.H. Ryther and W.O. McLarney. 1972. Aquaculture: the farming and
husbandry of freshwater and marine organisms. Wiley-Interscience, New York.
Barlow, G.W. 1974. Contrasts in social behavior between Central American cichlid fishes
and coral-reef surgeon fishes. Amer. Zool. 14: 9-34.
Barlow, G.W. 1978. Introduction, p. 1-8. In Scientific American reader in ichthyology.
Freeman, San Francisco.
Barlow, G.W. and R.F. Green. 1970. The problems of appeasement and of sexual roles in
the courtship behavior of the blackchin mouthbreeder, Tilapia mqlanotheron (Pisces:
Cichlidae). Behaviour 36: 84-115.
Baron, J.C. 1974. Sur la presence dans la baie de Gorge de Tilapia guineensis (Bleeker
1962). Bull. Inst. Fondam. Afr. Noire, Ser. A 36(4): 934-936.
Barr, W.A. 1968. Patterns of ovarian activity, p. 164-238. In E.J.W. Barrington and C.
Barker Jorgensen (eds.) Perspectives in endocrinology. Academic Press, New York.
Barrington, E.J.W. 1957. The alimentary canal and digestion, p. 109-161. In M.E. Brown
(ed.) The physiology of fishes. Vol. 1. Academic Press, New York.
Bauer, J. 1968. Vergleichende Untersuchungen zum Kontaktverhalten verschiedener Arten
der Gattung Tilapia (Cichlidae, Pisces) und ihrer Bastarde. Z. Tierpsychol. 25: 22-70.
Baylis, J.R. 1978. Paternal behaviour in fishes: a question of investment, timing or rate?
Nature (London) 276: 738.
Baylis, J.R. 1981. The evolution of parental care in fishes, with reference to Darwin's
rule of male sexual selection. Environ. Biol, Fishes 6: 223-251.
Bayoumi, A.R. 1969. Notes on the occurrence of Tilapia zillii (Pisces) in Suez Bay. Mar.
Biol. (Berl.) 4: 255-256.
Beadle, L.C. 1974. The inland waters of tropical Africa. An introduction to tropical lim-
nology. Longman, London.
Beamish, F.W.H. 1970. Influence of temperature and salinity acclimation on temperature
preferenda of the euryhaline fish T. nilotica. J. Fish. Res. Board Can. 27(7): 1209-
- Beamish, F.W.H. 1974. Apparent specific dynamic action of large-mouth bass, Microp-
terus salmoides. J. Fish. Res. Board Can. 31: 1763-1769.
Bell-Cross, G. 1968. The distribution of fishes in central Africa. Fish. Res. Bull. (Zambia)
(1965-66) 4: 3-20.
