Scottish Association for Marine Science, University of the Highlands and Islands, Oban, UK.
Royal Zoological Society Scotland, Edinburgh, UK.
J Fish Biol. 2021 Sep;99(3):1150-1154. doi: 10.1111/jfb.14816. Epub 2021 Jun 19.
An egg of the critically endangered flapper skate Dipturus intermedius was successfully incubated to hatching in captivity in what is believed to be a first for the species. Water conditions (temperature, salinity, flow rate) were recorded, with mean water temperatures ranging from a monthly mean of 8.3 ± 1.2 to 13.2 ± 0.3°C and salinity from a monthly mean of 30.5 ± 1.2 to 36.6 ± 2.3 ppt. Hatching occurred after 534 days, suggesting that flapper skate eggs take c. 5700 growing degree-days to incubate to hatching. The egg's prolonged embryonic development raises concerns about flapper skate eggs' vulnerability to anthropogenic disturbance.
据信，濒危物种短鳍拟庸鲽的一枚卵在圈养环境中成功孵化，这可能是该物种首次成功孵化。记录了水条件（温度、盐度、流速），月平均水温范围为 8.3±1.2 至 13.2±0.3°C，盐度范围为 30.5±1.2 至 36.6±2.3 ppt。孵化历时 534 天，表明短鳍拟庸鲽卵孵化需约 5700 个生长度日。卵的长期胚胎发育引起了人们对短鳍拟庸鲽卵易受人为干扰的关注。
