Fisheries depletion

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  • 1. Fisheries Depletion
    By Roff and Moreno
  • 2. Origen of Fisheries Depletion
    Massive increase in demand for fish
    Major fishing areas around the world have gone so far as to becomeover-exploited, there are no longer enough fish to reproduce and rebuild the population
    populations havegrown, food consumption has grown, and more advanced fishing technology/techniqueshave been developed
    Not many laws have been passed on thisissue
  • 3. Current Status
    this issue is behind some of the other major issues of the worldincluding pollution & deforestation despite the danger it poses to one of the world’s mostimportant food source
    1/5 people on this planet depend on fishas their main source of protein
    50% ofthe marine fisheries in the world are fully exploited, 20% are over-exploited
    The only moves to actually stabilize fish populations are seen in fish farmingin China, Canada, and the US
  • 4. Solutions
    create designated fishing areas along major fishing depots
    restricted areaswill be left alone so that populations can re-grow over a period of 3-5 years
    rely on fish farms where humans breed and control the populations of fishin man-made bodies of water
    The issue with this is that if any ofthese fish escape into wild waters then they can pose a threat to the ecology of that body ofwater
  • 5. The Future of Fisheries Depletion
    If everything continues as it has the allfisheries will continue or become over-exploited and eventually the world’s marine life canno longer survive
    if the initiatives that are beginning around the world continue fishpopulations will gradually become more stable and continue to grow
    the world will run out of seafood by 2048(Predicted by profesionals)
  • 6. Influence of Culture and Politics
    Politics  number of governments are making it more difficultto regulate fishing in some areas because of the detrimental effects they would have onnation economies
    a loss of jobs, factories
    Culture Many cultures around the worlddepend in marine life as one of their main food sources, mostly as a cultural preference andgeographic necessity
  • 7. Future Price of Fish
    rapid growth in demand of fishand the depleting amount of fish available, the price of fish is increasing faster than meat
  • 8. What is affecting marine life the most: Humans or Nature?
    Nature does have its natural hazardous effects on marine life but humans are what effect marine life the most
    We overfish the sea and we pollute it
  • 9. Factors involved in the Issues
    The most detrimental factor is overfishing
    Populations are dropping so fast that theremaining fish cannot reproduce enough to sustain themselves
    overall rate of fishthrown away because they do not reach the standards of weight or size is 25%
    84%of shrimp trawls are discarded
    this does not mean back in the ocean, the marinelife that is discarded has been caught and died already
    Fish produce more eggs the older and larger they are, reproduction rates have fallen because only juvenile fish remain
  • 10. Aquaculture
    help stabilize natural fisheries
    compensate for the enormous amount of fish consumed by the world
    negative effectshowever have to do with these fish escaping into real populations
    chemicals put in the water of the fish to promote their quick growth
  • 11. Government Regulations: Viable?
    Yes it is. This is one of the most recommended solutions
    By restricting some areas of fishing andonly allowing the unrestricted areas to be fished, populations have been proven to bothgrow in the untouched areas and even the areas allowed to be fished
  • 12. Human Help
    Stop the over-exploitation of fish habitats
    Proper use of boating equipment when going near reefs, as in avoiding destroying themwith propellers. This also includes proper use of oils & fuels, filling the tank withoutspilling for instance 
    More eco-friendly boating
    Stopping water pollution by avoiding dumping trash, fuel, and other hazardous material inbodies of water