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The impact of overfishing
Negative impact of overfishing
Negative impact of overfishing
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With a coastline of over 202 000 km and over a fourth of the world’s freshwater resources, it is no wonder why Canada’s fishing industry is a huge part of its economy.1 Canada exports more than 75% of its fish to over 130 countries worldwide. Many of the 7 million people who reside on the coast depend on the ocean’s resources. In total, Canada’s entire fishing industry is worth around 5$ billion dollars a year, being one of the world’s most valuable. However, the coasts have not been treated by respect; overfishing, over consumption, and wasteful practices has deteriorated, not only the industry, but the ecosystems and fish populations. This is a huge global issue; the worldwide collapse of fisheries has been project for 2048. Slowly, as the trends continue, we will inevitably see many fish species start to disappear. In fact, the ill-treatment of species on the Canadian border has already devastated a large specie, the cod. In the 1950s the Newfoundland Grand Banks was home to a plentitude of cod; early European explorers
Overfishing is defined as a form of overexploitation where fish stocks are brought down to unacceptable levels. In the UN Food and Agriculture Organization’s 2 yearly report (SOFIA), it states how over half of the fish stocks, worldwide, are fully exploited. Other research has shown it only takes 10-15 years of industrial fishing to obliterate a tenth of the intended specie. Overfishing causes a ripple effect that hurts the entire ecosystem. The balance of chain depends largely on the interaction between the predator and the prey. For example, if the larger fish are removed than its prey begins to overpopulate, due to the lack of population control. The balance in the oceans are a urgent problem, around 90% of predatory fish stocks are depleted. The ripples can extend even further to land creatures like
Newfoundland and Labrador’s fisheries might start to be dated in a period not too distant from that Age of Discovery years, about five centuries ago, and since this period it had been performed an important role in both economic and socio-cultural structure of Atlantic Canada. Among several species, northern cods performed one of the main sources of food for both populations from Atlantic Canada and Eastern European countries such as Spain, Portugal, France, and principally England (Higgins, Lifestyle of Fishers, 1600-1900, 2008).
Overfishing may have some benefits to it, but does it out way the negatives? By fulfilling our demand we can wipe out our whole oceans! Not just the fish, but water mammals too. Sure it can create jobs, but as what cost? It can help bring up our economy, but at the same time it can bring it down with many fish companies closing down due to lack of profit. Fish is a great source of nutrients, but too much can kill you! In other words, fish can be both beneficial and harmful to not only humans, but everyone and everything surrounding fish. There are three things people can do to help with overfishing, the first thing is to be aware of what you are eating. Is the fish on the fear of extinction list? Also asking yourself is the fish you’re about to eat really the fish you intend to eat? Another thing to ask is, was it shipped over seas? If it was it doesn’t benefit anyone, it won’t help the economy or you. Many fish shipped from a long ways creates pollution and may have lost its nutrients value from the long voyage. One last thing to do is if you see a sewer with a sign leading to the ocean, try not to leave trash near it, or better yet don’t litter at all! All the litter left out on streets or near sewers can cause pollution in oceans, lakes, and rivers which is very harmful for marine life. You can still enjoy fish, but not at such a high demand as
Rupert Murray’s The End of the Line focuses on the depletion of the oceans fisheries and the devastating effects it has already begun to have on ecosystems and less affluent populations. The film opens with a description of the tribulations of Newfoundland. Once possessing waters so populous with cod that one could “walk across their backs in the water,” improved technology and larger fishing vessels began to deplete the fish stocks. Despite placing a moratorium on fishing in 1992, the fisheries had already been depleted to the point of complete collapse. Similar processes are occurring around the world, as only .6% of the ocean is restricted to fishing vessels. According to the film, much of the ocean’s catch has declined by 90%; the continuation of current trends if continue, stocks will collapse by 2048.
The Fraser sockeye salmon is a very important species of fish in many communities in the province of British Columbia, generating millions and millions of dollars each year. With a decline in the number of salmon returning each year, not only will environmental problems arise but also economic ones. “This puts pressure on the communities of British Columbia that rely on these sockeye salmon for food, social and ceremonial purposes”(Cohen Commission, p. 14) as well as “recreational pursuits and livelihood needs” (Cohen Commission p.14). Jobs would be lost, and as a result less money will be made, having a potential impact on British Columbia’s GDP. On the other hand, what this means for the environment is even more startling. This could affect the food chains in the marine ecosystems, and affect many of the ocean’s other creatures. Salmon have both predators and prey; their declining numbers may have a great impact on the marine food web as a whole. The potential pathogen, or one of nature’s causes, may also affect other species in the marine ecosystem, which could bring potential ecosystem altering
To fish or not to fish is a personal choice. The fact that the oceans are being overfished is a growing concern for individuals, organizations, and governments throughout the world. In this paper I want to discuss the effects of overfishing on the restaurant industry, and possible solutions to solve the problem. Fishing is an ongoing source of food for people around the world. In many countries it is a food staple in their everyday diet. In more modern societies eating fish has become a sensual experience, and not just for the wealthy. It hasn't been until population explosions in the last century that the demand for seafood has led to more effective fishing techniques and technologies. Now the demand for popular fish like the salmon, tuna, sea bass, cod and hoki, which is the key fish in McDonalds filet o' fish, is diving wild populations to dangerously low levels. The methods used to catch the amount of fish demanded by the industry do not leave sustainable populations in the wild. In an attempt to preserve the fish population, governments have set limits on the minimum size that may be harvested and how many of each may be taken. Boundaries have been set up saying which areas can be fished and which ones should be left alone. A number of smaller fisheries have gone out of business because of the limits imposed by the government. This leads to even less fish being harvested and brought to market. Therefore the amount and varieties of fish at markets are smaller and can cause shortages for wholesalers and restaurants. Some restaurants will no longer have the variety on their menus that they used to enjoy. If a restaurant thrives on its seafood menu they may be unable to cope with the shortages and will go out of business. In the ...
As highlighted in both greenpeace.org and National Geographics overfishing is a direct result of industrialization and the increase of commercial fishing. What is happening is that in the commercial fishing industry they are fishing at fast pace in order to quickly make a profit at the expense of longterm sustainability of the oceans ecostistem. This will ultimatly lead to a lack of fish, destruction of many oceanic wildlife homes and the extinction of many species of desired fish if not corrected quickly.
Why? Our oceans cover nearly three fourths of the surface of our earth. According to overfishing.org, eighty percent of all life on earth is in the ocean, and us humans are threatening and driving them to extinction by overfishing. What is overfishing? Overfishing is defined as “To fish (a body of water) to such a degree as to upset the ecological balance or cause depletion of living creatures.” (Merriam Webster Dictionary) Recent studies from the Environmental Defense Fund reveal a bleak truth: Overfishing is depleting our oceans of sea life around the world. 87% of the world’s assessed fish stocks are at their breaking point, classified as overexploited or fully exploited. 1 out of 2 fish stocks in the U.S. are either overfished or at risk of being overfished. Moreover, 100 million sharks are killed each year. Carl Safina, world-renowned author of books such as Song for the Blue Ocean, once said, “If you're overfishing at the top of the food chain, and acidifying the ocean at the bottom, you're creating a squeeze that could conceivably collapse the whole system.” Overfishing is classified as the most dangerous threat our oceans are facing today. Worldwide, about 90% of fish stocks are gone forever. In 1990 our oceans contained at least six times more fish than they do today. Collapsing fish stocks create large ecological dead zones in our
The Bluefin tuna, Thunnus Thynnus, is a top predator of the oceans, and the most valuable fish in the world. David Attenborough once called it a “superfish”. Despite its Darwinian advantages commercial fisheries have exploited Bluefin for decades, and the population has fallen to an estimated 36% of its already depleted 1970 level1. Originally, fish were caught by rod and reel, one by one. During the 1980s commercial fisheries developed techniques, such as the use of long lines, drift nets and purse seines to catch thousands of these animals at a time. These techniques have obliterated the population of Bluefin in just a few decades. They also wreak havoc on the ocean killing millions of sea turtles, sharks, whales, dolphins- pretty much every living creature they come across. In 2007 the WWF warned of the imminent collapse of the Mediterranean population, in their article “Bluefin Tuna in Crisis”. However, this has not reduced the efforts of fisheries to catch these majestic creatures; with more boats chasing fewer and fewer fish, the species is being driven towards extinction. This common is being overused and could tragically disappear in the near future unless drastic changes are made. Both fishermen and consumers, as well as everyone who is affiliated with nature to some degree will be affected. The responsibility to prevent this tragedy is everyone’s, but business should lead the way in making commercial Bluefin fishing sustainable. Otherwise our planet will begin to look similar to Old MacDonald’s farm.
“Overfishing occurs when more fish are caught than the population can replace through natural reproduction”. CITATION
In another article published by the Dartmouth Undergraduate Journal of Science (DUJS), called “The Threats of Overfishing: Consequences at the Commercial level,” the DUJS found that overfishing has long term and devastating effects on natural habitats, food chains, and ocean communities (2). Not only is overfishing affecting the rate at which fish reproduce, but is also causing damage to their habitats and food supply. Recent studies have also found that overfishing decreases the genetic diversity of fish world wide (DUJS 2). Not only does overfishing affect oceans but also affects lakes by reducing nutrients in the water and it destabilizes the ecosystem (DUJS 14). MPAs can stop the damage and possibly even undo all the damage caused by overfishing.
It is estimated that 90% of the big fish in the oceans are disappearing according to CNN. Overfishing has been a big impact on the world today and it has affected many people. Truthfully, overfishing is a big problem today and drastic measures should be taken to prevent it. Fish have been decreasing by too much each year and solutions should be made. Overfishing has become a problem each year and measures should be taken to limit the effects, such as keeping fish in captivity and controlling pollution.
Marine life is very important and we need to work on fixing this problem and finding solutions for it. Is it possible that every time we overfish, it hurts us? From the 11th century onwards, overuse has led to the destruction of local and regional ecosystems. Evidence shows that humans have been depleting the wealth of the oceans throughout history. It has been said that Europeans started over-exploiting freshwater fish at least 1,000 years ago.
By 1989, when about 90 million metric tons of catch were taken from the ocean, the fish industry had hit its high-water mark causing yields to decline or stagnate ever since then. The United Nations Food Agriculture Organization (FAO) estimates that 25 percent of all fish trapped in nets are bycatch, which includes any fish or animal that is unusable or not licensed for fishing by the vessel (Moran). Modern ships today use technologically advanced, fish-finding sonar that can find a school of fish with almost military precision. Due to all this heavy fishing it can change the characteristics of a population by selecting for or against a certain trait. Overfishing is not only a crime but one of the contributing factors to the decline of animal population in the oceans and in increase in human greed.
This is a huge issue in regards to ocean dynamics. Since sharks are apex predators, their removal can cause a shift in the food chain causing cascading effects down to the marine floor. Seeing that shark finning is such a large industry,
Overfishing is a major threat to ocean ecosystems and to our food source. Overfishing is when we capture drastic amounts of fish in a smaller amount of time than fish can reproduce. For centuries we have relied on fishing as a source for food. Over the years we have developed new methods of fishing and have enhanced our equipment to capture vast amounts of fish in a minimum amount of time. We now have industrial fishing companies that provide for our seafood demand.