Assessing the relative importance of temperature, discharge, and day length on the reproduction of an anadromous fish (Alosa alosa)

Abstract : Climate change threatens anadromous fishes such as the allis shad (Alosa alosa) populations of which have declined since the 20th century in Europe. Sensitivity to climate change could be quantified by determining the fish's spawning behaviour, defined as the timing of reproduction (i.e. spawning events) as a function of temporally variableenvironmental factors. The cues that fish use to time reproduction could determine their response to climate change.