The growing population

demand, when paired with boats that can stay out longer in the sea, boats that are floating factories which catch and process huge quantities of fish –equates to overfishing. I want to limit fishing to a sustainable amount. If nothing is done to reduce the number of trawlers overfishing the whole eco system will be under threat. Since the size of the catch has been reducing over the years, the fishing convoys have resorted to casting out larger nets. These nets are indiscriminate. For every 1 ton of prawns caught, 3 tons of little fish are caught in the nets and thrown away. The Ocean is unable to reproduce what we are taking away quickly enough.

Overfishing causes the disappearance of predators. The whales, sharks, Bluefin tuna, king mackerel, dolphins and marlin are vanishing or are close to vanishing. It took us only 55 years to wipe out 90% of the ocean’s predators causing a disruption of the marine ecosystem. As the large predators disappear, commercial fishermen will move down the food chain, until we’ve depleted everything. 52% of fish stocks are fully exploited, there are 20% that are moderately exploited, also 17% are overexploited with a following or 7% depleted and 1% recovering from depletion.

It’s the aquatic equivalent of deforestation. Boats cast huge and heavy nets that are held open by heavy doors weighing several tons each and drag them across the ocean floor. Which just rips apart the ocean floor and everything on it including any coral that is abundant with fish. The Coral Reefs which are home to 25% of all marine life are being destroyed. The reefs grow at a rate of 0.3 cm to 10 cm a day. For a significant amount of coral to regrow takes anywhere up to 5,000 to 10,000 years.

Overfishing must be stopped to prevent the destruction of the eco system, unstainable fishing is the greatest threat to the oceans eco systems. The amount of trawlers that are deployed each day pose a huge threat on the marine life. Which is delicately balanced for millions of fish species and marine animals.  The Australian government alleged in 2006 that Japan had illegally overfished southern Bluefin Tuna by taking 12,000 to 20,000 tonnes per year instead of the agreed upon 6,000 ton. 

Constantly fishing for the same species like the blue fin tuna, which is a popular fish for people to purchase in turn means that its numbers will decrease. which means that kind of fish will become extinct. This is why measures need to do be put in place to allow fish like the blue fin tuna and other species of fish to be able to repopulate. As predators diminish, the populations of smaller fish escalate because they were previously the food source of the bigger fish. In addition, the disappearance of these species affects many other species, like seabirds and sea mammals, which are vulnerable to the lack of food. Destruction of the food chain will have consequences from large species down to the smallest organisms.

The economic impact on over fishing is huge. A new study released by the New Economics Foundation in the United Kingdom has given an indication of the cost of overfishing.  And it’s not cheap. According to the report, overfishing costs over 100,000 jobs and up to $3.2 billion each year. When the populations aren’t given a chance to reproduce, the declining availability costs many fishermen their jobs. Tax payer’s money goes to paying for fishery dollars and over fishing subsidies total an estimated $16billion annually, which is equivalent to roughly 25 percent of the value of the world’s fish catch.

 The amount of trawlers that are out catching fish is a serious   consequence (pollution side of things, oil and liquid spills and solid elements discharge into the water from fishing boats,) vessels and trawlers often damage marine life. It is easy to thinks that the oceans are so big and that the trawlers are so little, what impact can they have? Bit of pollution from thousands of trawlers everyday contributes to something very large and destructive. Not only do the trawlers release a lot of harmful waste and toxic pollutants, their nets pose an even bigger threat, tearing apart the coral reefs. Deep-sea trawlers use giant, heavy-duty nets that are dragged over the seafloor at depths of more than a kilometre. The nets are fitted with rubber rollers called "rock hoppers", which destroy the corals that provide habitats for fish and other marine organisms. Each trawler typically covers an area of ocean around 33 kilometres square. Among the most threatened sites are cold water coral reefs in temperate regions, which are still being discovered.

On a local scale you can choose certified seafood products. When shopping, read the labels and make informed decisions about your groceries. Buy sustainable canned tuna or ask your local fishmonger or supermarket if they stock MSC-certified seafood. By asking for it, you are creating consumer demand and retailers will respond.

Another option is to consider writing a submission advocating ecologically sound fisheries management. When fisheries are assessed to determine if they meet ecologically sustainable standards under the Environment Protection and Biodiversity Conservation Act 1999, there is an opportunity for members of the public to comment

But global change also needs to happen there should only be a set number of days that fishing is allowed. This way, there is some fallow days for fish to breed and reproduce. In addition to that, fishing areas need to be rotated among fisheries so each fishery has a fair share of the days to fish. Another suggestion to consider to reduce overfishing is to extend No-fishing zones in many areas to allow fishes to recover. Only large mesh nets should be allowed. Because small nets catch immature fish which has an impact on the breeding cycle. There is monitoring equipment and installations set up to regulate the activities and movement of fishing trawlers, they need to be used to monitor that the trawlers are abiding by the laws and the catch size. The problem of overfishing is increasing and we are all heading for a massive environmental catastrophe if we do not do more to prevent this action of overfishing.

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