The Big Problem
By: De'andre,John, and Ginelis.
1.Over fishing is when us as human beings are fishing to much. And are decreasing the overall fish population. By 1/3 of the regular population. And now we will soon be out of fish in the next few years.
2.Reefs are suffering directly and indirectly from the increasing pressure of mans resource exploitation.Aggressive fishing methods have hurt coral reefs sometimes beyond repair.
3. It can deplete biological diversity by causing extinctions.
In the first chapter we already discussed that globally fishing fleets are at least two to three times as large as needed to take present day catches of fish and other marine species. To explain why overfishing is a problem we first have to get an idea on the scale of the problem. This is best done by looking at some figures published by the UN Food and Agriculture Organization. 1 The FAO scientists publish a two yearly report (SOFIA) on the state of the world's fisheries and aquaculture. 2 The report is generally rather conservative regarding the acknowledging of problems but does show the key issue and trends. Due to the difficulty of aggregating and combining the data it can be stated that the SOFIA report is a number of years behind of the real situation.
- 52% of fish stocks are fully exploited
- 20% are moderately exploited
- 17% are overexploited
- 7% are depleted
- 1% is recovering from depletion
The above shows that over 25% of all the world's fish stocks are either overexploited or depleted. Another 52% is fully exploited, these are in imminent danger of overexploitation (maximum sustainable production level) and collapse. Thus a total of almost 80% of the world's fisheries are fully- to over-exploited, depleted, or in a state of collapse. Worldwide about 90% of the stocks of large predatory fish stocks are already gone. In the real world all this comes down to two serious problems.
- We are losing species as well as entire ecosystems. As a result the overall ecological unity of our oceans are under stress and at risk of collapse.
- We are in risk of losing a valuable food source many depend upon for social, economical or dietary reasons.
The single best example of the ecological and economical dangers of overfishing is found in Newfoundland, Canada. In 1992 the once thriving cod fishing industry came to a sudden and full stop when at the start of the fishing season no cod appeared. Overfishing allowed by decades of fisheries mismanagement was the main cause for this disaster that resulted in almost 40.000 people losing their livelihood and an ecosystem in complete state of decay. Now, fifteen years after the collapse, many fishermen are still waiting for the cod to return and communities still haven't recovered from the sudden removal of the regions single most important economical driver. The only people thriving in this region are the ones fishing for crab, a species once considered a nuisance by the Newfoundland fishermen.
Fishing down the food web
It's not only the fish that is affected by fishing. As we are fishing down the food web 3 the increasing effort needed to catch something of commercial value marine mammals, sharks, sea birds, and non commercially viable fish species in the web of marine biodiversity are overexploited, killed as bycatch and discarded (up to 80% of the catch for certain fisheries), and threatened by the industrialized fisheries. 4 Scientists agree that at current exploitation rates many important fish stocks will be removed from the system within 25 years. Dr. Daniel Pauly describes it as follows:
„The big fish, the bill fish, the groupers, the big things will be gone. It is happening now. If things go unchecked, we'll have a sea full of little horrible things that nobody wants to eat. We might end up with a marine junkyard dominated by plankton.” 5
4 NO MORE FISH!!!!!!!.....and,
Overfishing occurs when more fish are caught than the population can replace through natural reproduction. Gathering as many fish as possible may seem like a profitable practice, but overfishing has serious consequences. The results not only affect the balance of life in the oceans, but also the social and economic well-being of the coastal communities who depend on fish for their way of life.
5. Technology is killing fish like in oil spill in the ocean. also boat .Can hurt the fish in a lot of ways. And now in this day and age people are getting to more water passes and are now catching more fish.
6.Overfishing started over 50 years ago. and now,
Google has partnered with Sky Truth and Oceana to produce a new tool to track global fishing activity. Known as Global Fishing Watch, the interactive web tool uses satellite data to provide detailed vessel tracking, and aims to harness the power of citizen engagement to tackle the issue of overfishing.
According to the United Nations Food and Agriculture Organization, more than 90 percent of the world’s fisheries are working at peak capacity, with as much as one-third of marine fish stocks now suffering from overfishing.
Though a clear issue, the distant and out-of-sight nature of commercial fishing creates a problem when it comes to accountability. To help combat this, Google has teamed up with marine advocacy group Oceana and mapping company Sky Truth to develop the Global Fishing Watch – a tool that allows anyone with an internet connection access to the timing and position of intensive fishing around the world.
Currently in the prototype stage, the tool makes use of Automatic Identification System (AIS) satellite location data – a tool initially designed to help avoid maritime collisions. The system analyses the movement pattern of each ship to determine whether it is indeed a fishing vessel, before plotting its activity on an interactive map.
7.Is a form of over exploitation in when fish stocks are depleted to unacceptable levels regardless of water body size.