RNR 1001 Chapter : Renewable Natural Resources New Material
Document Summary
In addition to freshwater, marine, and wetland ecosystem services, aquatic ecosystems around the planet provide a huge diversity of fisheries resources. World commercial fisheries harvests in 2010, 148. 5 million metric tons (mmt) About 114. 5 mmt was made up of finfishes. The other 34 mmt comprised mostly of crustaceans and mollusks (also kelp) The commercial sector includes food fisheries as well as industrial fisheries. Freshwater and marine recreational fishing important in many countries. Many commercially and recreationally exploited fish and invertebrate stocks declined during the 19th and 20th centuries. Reasons include environmental fluctuations and overexploitation, fish can be a example of bank accounts. Stocks increase each year from growth and reproduction. In addition, many non-exploited aquatic species also declined in abundance from habitat loss and degradation. Fisheries are an excellent example of a renewable resource. An important of fisheries conservation had been the ownership of resources by. Historic trends in many fish stocks illustrate the law of the commons government.
