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Two Entirely Unrelated News Stories About Fish

By Jen Maravegias | Miscellaneous | June 22, 2021 |

By Jen Maravegias | Miscellaneous | June 22, 2021 |


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Earlier this week, deep-sea ecologist, and conservation biologist, Andrew Thaler Tweeted out this strange, and shocking, bit of information

In that Twitter thread he links to a 2014 phys.org article explaining that 95% of the world’s fish biomass are mesopelagic fish — fish that live between 100 and 1000m below the surface. This is 10-30 times more than previously thought. Fish that live that deep have evolved to have enhanced pressure sensitivity, larger eyes for seeing in the dim light of the deep and, apparently, are much too wily to be captured by fishing nets. This means we haven’t really been eating them, but we also haven’t really been studying them either. They are “Dark Fish,” as it were.

What does this ACTUALLY mean? It means that there are way more UNKNOWN fish living out there in the oceans than we ever thought possible. This is great news! It means that waters previously thought to be “ocean deserts” may actually be sustaining vibrant life deeper down than we can see. It means that the largest fish stock in the oceans isn’t in coastal areas but in the central parts of the oceans. And it means that fishing has not yet touched 95% of fish biomass. The oceans are healthier than previously thought. You love to hear it.

 

The whole thread is fascinating and full of biologist jargon and delightful fish-related science puns

 

In entirely unrelated, absolutely has nothing to do with the discovery of all these Dark Fish, I swear, news The New York Times commissioned a lab analysis of Subway’s tuna sandwiches and found….that they’re not actually tuna. Well, at least not at three Los Angeles locations.

Nothing to see here folks. Move along. Move along.