Are not necessarily visited on the children, at least not with ocean acidification.
There has been a lot of discussion over the last few years about the ability of plants and animals to adapt to ocean acidification. Some researchers are adamant that the rate of change is so fast that no animals will be able to adapt. A recent study by Miller et al. suggests that this may not be the case. In fact, they show that nature may just be a little more resilient than we give her credit for (or at least some species will be).
Professor Phil Munday and his team from James Cook University has been working on this concept for a while. The difficulty is that it is hard to raise multiple species of long-lived animals (or plants) in the lab to conduct these experiments. Miller et al. show that it’s worth trying. They exposed breeding pairs of cinnamon anemonefish to different levels of ocean acidification (OA) for two months before the breeding season. The astonishing thing is that their offspring weren’t negatively affected by this OA, whereas other juvenile fish coming from “normal” seawater were. What does this mean? That there was some sort of non-genetic adaptation within one generation!
We don’t know the underlying physiological mechanisms for this adaptation, or what other long-term trade-offs it may have (e.g. reduced reproductive output in the offspring?), but it is a promising outcome. Now all we need are more long-term, multi-generational research and we may begin to put a picture together on how our oceans will (or won’t) adapt to ocean acidification!
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