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The role of captive breeding in the conservation of fish species P E T E R S. M A I T L A N D â & D I A N A EVANSâ Institute of Terrestrial Ecology, Edinburgh, Scotland and 21UCN Conservation Monitoring Centre, CamhridRe, Great Britain The exact number of fish species occurring in the world is uncertain for not only are there many spccies yet to be discovered but others are undergoing extinction. It is likely that there are about 25 000 living species of fishes included in some 450 families indeed there are probably more fish in the world than all other vertebrates combined. T h e objective of this paper is to review the need for the conservation of fish species - both freshwater and marine -and discuss the contribution which captive breeding is making or could eventually make to this process. Although our knowledge of the distribution of fishes has improved through the development of various mapping and registration schemes, such as that carried out on freshwater fishes of the British Isles (Maitland, 1969), the coverage is by no means complete and the fish fauna of many areas are still relatively unknown. Fortunately,
International Zoo Yearbook – Wiley
Published: Jan 1, 1986
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