Contribution to collective works (Parts of books)
The role of aquaculture in fish conservation : a case study of Barbus barbus in Belgium.
Poncin, Pascal; Philippart, Jean-Claude
2002In Collares-Pereira, M. J.; Coelho, M. M.; Cowx, I. G. (Eds.) Conservation of Freshwater Fishes : Options for the Future.
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Keywords :
Barbus barbus, cyprinids; artificial rearing, reproduction; restocking, population dynamics
Abstract :
[en] Breeding and rearing methods commonly used in aquaculture are important when considering the artificial regeneration of endangered fish populations. Initially, baseline data on the population biology and ecology of the endangered species are collected before developing studies in captivity. Collection of sperm and ova from wild spawners, or induced breeding of wild spawners under controlled conditions, were commonly used to produce fry in hatchery systems. The latter has to be properly reared in captivity conditions (density, temperature, photoperiod and health) to produce mature fish which can constitute a breeding stock (and sometimes represent the first step of domestication). In some fish, particularly cyprinids, growth can be accelerated in captivity (especially in heated water) and both sexes reach maturity at an earlier age and often at a smaller size in captivity than in the wild. Controlled conditions also allow manipulation of the reproductive periods as well as reproductive output characteristics, allowing selection of fish (sometimes on genetic criteria) and choice of the time of the year for releasing fish into the wild. Finally, the importance of restoration stocking in the wider context of fisheries management in rivers is emphasised in relation to long-term rehabilitation actions.
Disciplines :
Animal psychology, ethology & psychobiology
Aquatic sciences & oceanology
Author, co-author :
Poncin, Pascal ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale
Philippart, Jean-Claude ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale
Language :
English
Title :
The role of aquaculture in fish conservation : a case study of Barbus barbus in Belgium.
Publication date :
2002
Main work title :
Conservation of Freshwater Fishes : Options for the Future.
Author, co-author :
Collares-Pereira, M. J.
Coelho, M. M.
Cowx, I. G.
Publisher :
Fishing News Books (Blackwell Science), Oxford, United Kingdom
Pages :
402-413
Peer reviewed :
Peer reviewed
Available on ORBi :
since 18 May 2010

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