Fish species that prey on baby salmon are frequently introduced, quasi sport fish that sea lions eat. Therefore, eliminating predators may not even have the desired result.
Regulators set the upper bound for lethal removal services at no more than 1% of the greatest number of animals that could be killed by human influence while maintaining an optimal current population (this is recognised as the possible biological discharge level, or "PBR") when nations first implemented to murder sea lions underneath this new section of the MMPA. Only Idaho, Oregon, and Washington government representatives requested kill permits. Near Cascade Dam on the Columbia, they erected platforms with cage traps, which sea lions freely climbed onto to rest. Animals was hot-branded, & if they were observed eating salmon species, their names were added to a list so that they might be caught & chemically killed the following time they appeared on the traps.
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