How long has overfishing occurred?

Overfishing has been a significant concern since at least the 19th century, but it became more pronounced in the mid-20th century with advancements in fishing technology and increased demand for seafood. By the 1980s, many fish stocks were already experiencing severe depletion, and the issue has continued to escalate. Today, it's estimated that about one-third of global fish stocks are overfished, highlighting the ongoing challenges in sustainable fishing practices.