As an aside, I’m pretty underwhelmed by concerns about using LLINs as fishing nets. These concerns are very media-worthy, but I’m more worried about things like “People just never bother to hang up their LLIN,” which I’d guess is a more common issue. The LLIN usage data we use would (if accurate) account for both.
Besides the harm caused by some people contracting malaria because they don’t sleep under their nets, which we already account for in our cost-effectiveness analysis, the article warns that fishing with insecticide treated nets may deplete fish stocks. In making this case, the article cites only one study, which reports that about 90% of households in villages along Lake Tanganyika used bed nets to fish. It doesn’t cite any studies examining the connection between bed nets and depleted fish stocks more directly. The article states that “Recent hydroacoustic surveys show that Zambia’s fish populations are dwindling” and “recent surveys show that Madagascar’s industrial shrimp catch plummeted to 3,143 tons in 2010 from 8,652 tons in 2002,” but declines in fish populations and shrimp catch may have causes other than mosquito net-fishing.
The Wired article says that there’s been a bunch more research in recent years about the effects of bed nets on fish stocks, so I would consider the GiveWell response out of date
I don’t actually find either all THAT reassuring. The GW blogpost just says most nets are used for their intended purpose, but 30% being used otherwise is still a lot, not to mention they can be used for their intended purpose and the later to fish. The Cold Takes blog post just cites the same data about most nets being used for their intended purpose.
there have been a few “EA” responses to this issue but TBF they can be a bit hard to find
https://www.cold-takes.com/minimal-trust-investigations/
https://blog.givewell.org/2015/02/05/putting-the-problem-of-bed-nets-used-for-fishing-in-perspective/
The Wired article says that there’s been a bunch more research in recent years about the effects of bed nets on fish stocks, so I would consider the GiveWell response out of date
I don’t actually find either all THAT reassuring. The GW blogpost just says most nets are used for their intended purpose, but 30% being used otherwise is still a lot, not to mention they can be used for their intended purpose and the later to fish. The Cold Takes blog post just cites the same data about most nets being used for their intended purpose.
I had seen the second of these at some point I think, but not the first.