1 In the 1960's, new technologies like radar and sonar enabled fishermen to fish much deeper for cod and to catch them much more rapidly. During the era, cod fishing formed the foundation of the New England economy and many people relied on fishing cod for their livelihood. In the 17 th century, people said that cod was so plentiful in the Northwest Atlantic that you could walk across the ocean on their backs. Perhaps the best known example of this comes from the Atlantic cod. One of the chief consequences of industrial fishing is that some species have been overfished to the point of near extinction. Unfortunately, there are many negative environmental consequences to these practices and overfishing has been identified as a primary cause of ecosystem collapse in many aquatic systems. In recent decades, new technologies have allowed humans to remove fish from the ocean on a massive scale to supply Earth's burgeoning population. For centuries, humans have relied on the ocean for subsistence by harvesting its abundance of fish.
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