MSC 111 Lecture Notes - Lecture 19: Trawling, Overfishing, Deep Sea

• School: University of Miami
• Department: Marine Science
• Course: MSC 111
• Professor: Peterson Larry

Document Summary

Newfoundland cod fishery started in the 16th century. Cod were far larger than they are today. Average size of a cod today is about a foot. ~300,000 metric tons caught per year until the 1960s. Peaked in 1968 with 800,000 tons- factory ships. Declines since then a0 debate between scientists and fisherman. Us and canada moratorium in 1992- 40,000 people lost their jobs. Today"s population is believed to be 1% of that in. Catching the adult fish faster than a population can reproduce. Bycatch, trawling, longline, gillnets, blast fishing, cyanide fishing. Most fishing in constrained in coastal waters. Can catch as much as 350 metric tons per day. Can store 7,000 tonnes as frozen fish. Replacement for the locally operated fishing vessels. 3. 7 million tons of fish were landed. The us discard about 17 to 22 percent of everything they catch. Amount to 2 billion pounds of annual by-catch. Injured/dead fish and other marine animals unintentionally caught are thrown overboard.