Overfishing has drastically changed the genetic makeup of cod in the Baltic Sea. For decades, excessive fishing has led to a significant decline in cod populations. As a result, these fish now reproduce at smaller sizes, which gives them an unexpected survival advantage. This adaptation highlights the long-term effects of human activities on marine ecosystems.
Scientists warn that this genetic shift may hinder the recovery of cod stocks in the future. The smaller size at which cod now reproduce poses risks for their population growth. Sustainable fishing practices are becoming more critical than ever to ensure the survival of cod and other fish species. Without immediate action, the consequences could extend beyond cod, affecting the entire marine food web.
