First it was sheep. Now it is fish. See the Animal Death-Watch series, GASP! series and warmlist for more global warming absurdity.
Smaller fish tend to produce fewer eggs. They also provide less sustenance for predators - including humans - which could have significant implications for the food chain and ecosystem.
A similar shrinking effect was recently documented in Scottish sheep and Daufresne said it is possible that global warming could have "a significant impact on organisms in general."
[From Fish are shrinking in response to global warming: study]