Fish more vulnerable to warming water than first thought:

With medium-level human-caused climate change expected by the end of
the century, the world’s oceans, rivers and lakes will be too hot for
about 40% of the world’s fish species in the spawning or embryonic life
stages, according to a study in Thursday’s journal Science. That means they could go extinct or be forced to change how and where they live and reproduce.

Until now, biologists had just studied adult fish. For adult fish,
around 2% to 3% of the species would be in the too-hot zone in the year
2100 with similar projected warming. So using this new approach reveals a
previously unknown problem for the future of fish, scientists said.

Fish more vulnerable to warming water than first thought: With medium-level human-caused climate change expected by the end of
the century, the world’s oceans, rivers and lakes will be too hot for
about 40% of the world’s fish species in the spawning or embryonic life
stages, according to a study in Thursday’s journal Science. That means they could go extinct or be forced to change how and where they live and reproduce.
Until now, biologists had just studied adult fish. For adult fish,
around 2% to 3% of the species would be in the too-hot zone in the year
2100 with similar projected warming. So using this new approach reveals a
previously unknown problem for the future of fish, scientists said.Read More