I understand this couldn’t always be the case, like trying to kill all Cane toads across the entirety of Australia would likely be a massive undertaking. But for say, Bull Carp in some of America’s rivers, localized just to where those rivers reach, I feel like it wouldn’t take anymore than a month and some semi-advanced technology to just aggressively fish them out of the waters? Especially given the purpose of this would be to over-hunt instead of eating them, so you could use methods like shooting them in the water instead of fishing them out carefully.
Human’s seem pretty good at over-hunting things unintentionally for sport, so why can’t we systemically over-hunt invasive species if it helps the environment?
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It’s hard to do unless you’re working in a limited and isolated area. For example, there’s some good work being done in the way of [killing off invasive species in the Galapagos](https://www.galapagos.org/conservation/project-isabela/).
>The goal of Project Isabela, initiated in 1997 and completed in 2006, was to eliminate large introduced mammals from northern Isabela Island (approximately 250,000 ha), Santiago Island (58,465 ha), and Pinta Island (5940 ha). The project began in response to the massive ecosystem-wide destruction caused by introduced goats on Alcedo Volcano on northern Isabela. At the start Project Isabela, the goat population on northern Isabela was estimated at 100,000 animals. Eradication work began on the smallest of the islands – Pinta – which was used as a training ground, then shifted to Santiago prior to the arrival of helicopters, which were essential for work to begin on northern Isabela.
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