Rapid Evolution of Fish Due to Overfishing
Originally Published 2 years ago — by Earth.com
A study led by Rutgers University has found that Atlantic cod have undergone rapid evolution due to human-driven overfishing, with changes occurring within decades rather than millions of years. The researchers used modern technology to uncover the genetic code of codfish caught over a century ago, revealing subtle genetic shifts. The findings suggest that small changes in numerous genes triggered the cod's evolution, rather than an isolated genetic aberration. The study offers hope for the beleaguered codfish, whose population has been slowly recovering since fishing pressure lessened, and could potentially regain its former glory with proper management.