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Freshwater fish diversity is harmed as much by selective logging in rainforests as they are by complete deforestation, according to a new study.
Researchers had expected the level of damage would rise depending on the amount of logging and were surprised to discover the impact of removing relatively few trees.
[...] Lead author Clare Wilkinson, from the Department of Life Sciences at Imperial, said: "That such a small change can impact fish biodiversity is shocking and worrying. We expected to see a gradient from least affected in the selectively logged areas, to heavily impacted for the streams in oil palm plantations. Instead, we saw almost the same level of fish biodiversity loss in all altered environments."
[...] Researchers believe the reasons for these dramatic changes are likely to be down to a range of factors that affect stream habitats when trees are lost. Trees provide shade, creating cooler patches of stream that many fish need to spawn. Older, taller trees provide more of this shade, but they are the ones usually removed in selective logging. Leaf litter from these trees also helps to keep the streams cool and to concentrate food sources.
(Score: 2) by realDonaldTrump on Sunday April 22 2018, @09:12PM (1 child)
I’m a very big person when it comes to the environment. I have received awards on the environment. Donald Jr., great shark fisherman. He does the catch & release. Which doesn't harm the sharks. And I'm thinking, please don't be too nice. But no awards for him. Not yet. Donald & Eric, terrific hunters. They go to Africa, they hunt, it's great for the economy there. And it's great for the animals. Because if nobody hunts them, what are they worth? Not much. But, no awards for that. I got so many awards. These SAFE folks, they're tremendous at fishing. They caught an amazing amout of fish. But very environmental. They're figuring out how to have huge plantations with great environmental. Trying to figure that out. And you're helping with that, "informing" them about their mistakes. You can be very proud!!
(Score: 2) by The Mighty Buzzard on Sunday April 22 2018, @09:56PM
Catch and release is for carpetbagging, snare-drumming, yankee lawyers. Being part of the food chain is just a part of existence for every living thing (you've got a date to be bacteria/worm chow yourself) but killing for nothing but pleasure is fucked up. And yes, catch and release does kill fish. Every now and then one will swallow the hook/lure/etc... and that's pretty much guaranteed death.
My rights don't end where your fear begins.