Effect of temperature on growth and survival of Chirostoma estor estor, Jordan 1879, monitored using a simple video technique for remote measurement of length and mass of larval and juvenile fishes

摘要: The growth and survival of white fish (Chirostoma estor estor) larvae were measured at different temperatures ranging from 16.1 to 34 °C. A single camera video system was used for accurate measurement length larval juvenile fish, which enabled experiments on delicate animals with minimal handling. Use a length/weight relationship then estimation mass. When applied C. estor, the error generally less than 0.5% length, but increased over 1% when distance larva grids increased. total practical in biomass using method −2.05% dry weight, range −7.1% +4.1%. Over number experiments, recorded mortality due measuring process 1%, representing dramatic advance all previous attempts work Chirostoma. This simple could have wider utility fragile such as marine fish. Larvae fed ad libitum Brachionus rubens rotifers Artemia franciscana nauplii 1 month. results showed that optimum temperature specific rates (SGR) 28 °C, although only 18% this temperature. best (53%) 22 25 overall