Do adult jellyfish always die in the winter??

Question: Do adult jellyfish always die in the winter??
- Keywords:
  adult,
  death,
  jellyfish,
  winter
Asked by 787envp29 to Jasmine on 14 Nov 2018.
- Jasmine answered on 14 Nov 2018:
  
  They don’t always but most of the time they do because the temperatures are too cold for them to survive. Sometimes if we have a very mild winter they can continue to grow for one more year and they die the next winter instead.

Question: Do adult jellyfish always die in the winter??