TY - CPAPER T1 - Maturation and spawning of tropical and subtropical marine finfish by environmental manipulations A1 - Roberts Jr,D UR - https://archimer.ifremer.fr/doc/00000/1437/ KW - Sciaenidae KW - Serranidae KW - Centropomidae KW - Fish culture KW - Controlled conditions KW - Sexual maturity KW - Photoperiods KW - Fish eggs KW - Gametogenesis KW - Steroids KW - Animal reproductive organs KW - Brood stocks KW - Marine fish KW - Spawning KW - Sexual reproduction N2 - Circannual, diel, and lunal periodic mechanisms in naturally reproducing stocks of tropical and subtropical fishes are reviewed. Manipulations of biological clocks, used to control reproduction in captive broodstocks, are detailed. Experiments to induce controlled maturation and spawning in fishes either test efficacy of changing environmental conditions (regimes), or constant environmental conditions (controlled). Data have been generated in experimental/scientific studies, as well as applied research. Effects of controlled environmental regimes on serum steroids, gametogenesis, spawning, fry performance and egg quality are summarized for selected members of Centropomidae, Serranidae, and Sciaenidae. Y1 - 1989/02 CY - Advances in Tropical Aquaculture, Workshop at Tahiti, French Polynesia, 20 Feb - 4 Mar 1989 SO - Actes de colloques Ifremer, Tahiti, French Polynesia, 20 Feb - 4 Mar 1989, n°9, chap. 50, pp.541 ID - 1437 ER -