RUI: Dynamics of a Pelagically Spawning Coral Reef Fish

产卵期是鱼类生产的关键时期和捕捞的脆弱时期，了解它们的因果基础很重要。为了解释海洋鱼类在远洋产卵时的交配模式，本研究提出了一个新的假说：选择产卵地点和产卵时间是为了提高受精成功率。先前的研究表明，对于蓝头濑鱼（Thalassoma bifasciatum）来说，当地种群的交配时间差异很大，这意味着受孕率出奇地低，似乎受到湍流和珊瑚礁位置的影响，雄性释放的精子数量与与之交配的雌性的大小和繁殖力密切相关。本项目将进行三项相互关联的调查：交配的时间，2。3、配合的位置；受精 成功。

Spawning periods represent critical times for production and vulnerable times for harvesting of fish stocks and it is important to understand their causal basis. This research project explores a new hypothesis in order to explain the patterns of mating in pelagically-spawning marine fishes: the hypothesis is that, spawning sites and times are selected in order to improve fertilization success rates. Previous studies have shown that for the bluehead wrasse, Thalassoma bifasciatum, the timing of mating varies dramatically between local populations, that mean fertilization rates are surprisingly low and appeared to be influenced by turbulence and location on the reef, and that the number of sperm released by males correlates significantly with the size and fecundity of the female with whom they are mating. This project will undertake three interrelated investigations on: 1. the timing of mating, 2. the location of mating, and 3. fertilization success.