Fishing quotas upended by nuclear DNA analysis

Fishing quotas have been decided using an inadequate method for decades, according to a new study. The same method has also been used to decide about culling, hunting quotas, or translocating threatened species. Analyzing the nuclear genome of sardines shows previously unrecognized genetic differences between populations, which are not identified by the go-to-method for Isolation-By-Distance, mitochondrial DNA analysis.
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