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Problem of overpopulation essay 250words
Problems of overpopulation
Easy problem of overpopulation
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The Tragedy of the Salmon
The United States Pacific Northwest has historically been a significant player in the global fishing industry. However, over the last half-century, the fish population in the area has been declining at an alarming rate. Popular species of fish such as cod and salmon have been particularly susceptible to these decreases. What once was a region flourishing with abundant fish populations, is now in danger of being exploited to the point of extinction of certain species. The majority of these population drops is attributed to increased industrialization and overfishing in the region. The ocean is a commons, as defined by Garrett Hardin in his “The Tragedy of the Commons”, and is being exploited as an open resource, resulting in a reduction of fish and industrial fisheries in the Pacific Northwest. Enforced government regulation is the only viable course of action to deter the declining fish populations. Fisheries have been exploiting the region, and limiting the amount of fish one can catch, particularly of specific species, may lead to more balanced levels of fish population.
In 1968, Garrett Hardin published his essay “The Tragedy of the Commons” in Science, in which he elaborated his theories for curtailing the overpopulation problem. The article is perhaps best known for Hardin’s definition of the “commons” as a shared, limited resource under limited (if any) regulation. In his essay, Hardin considered the right to breed as a commons and confronted the resulting problem of global overpopulation. Hardin believed in the inevitable exploitation of any commons, and therein lies the tragedy of commons: a commodity which is universally free and accessible will inexorably result in overutilization precisely beca...
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...in suggests, mutual coercion must be applied. Enforced government regulation of the fisheries can achieve this, and extend the restoration of endangered species of fish.
Bibliography
The Economist [London], January 3, 2009, A special report on the sea.
Hardin, Garrett. "The Tragedy of the Commons." Science 13 Dec. 1968: 1243-248.
Johnsen, D. B. 2009. Salmon, science, and reciprocity on the Northwest Coast. Ecology and
Society 14(2): 43.
Lackey, Robert T. "Restoring Wild Salmon to the Pacific Northwest: Chasing an Illusion?"EPA.
Environmental Protection Agency.
Lichatowich, J., L. Mobrand, and L. Lestelle. "Depletion and Extinction of Pacific Salmon: A
Different Perspective." ICES Journal of Marine Science (1999): 467-72. ICES Journal of
Marine Science. Oxford Journals.
Washington Policy Center. Washington Policy Center. By Travis W. Midfeldt. Mar. 1999.
In this entertaining, search into global fish hatcheries, New York Times writer Paul Greenberg investigates our historical connection with the ever changing ocean and the wild fish within it. In the beginning of the book Paul is telling his childhood fishing stories to his friends, that night Paul discovers that that four fish dominate the world’s seafood markets in which are salmon, tuna, cod, and bass. He tries to figure out why this is and the only logical answer he could come up with is that four epochal shifts caused theses wild fish population to diminish. History shows that four epochal shifts happen within fifteen years causing certain fish species populations to diminish. He discovers for each of the four fish why this happened to
The PBS documentary begins by explaining the normal life cycle of salmon, focusing primarily on the sockeye salmon population. This Pacific salmon once was found abundantly in the Columbia and Snake River, but as rivers were straightened and dams were built to meet the needs of population growth the fish population has diminished by the thousands.
Over the years, as the world has evolved, fishing methods were improved as well, and, especially from the 20th century, several changes had forced the way the fishery was done in North Atlantic. As world population was increasing quickly, the cod demand has grown tremendously. New technologies were introduced and thus catch rates of northern cod began to exceed the hazardous limits of the stock’s ability to rebuild. This fact summed with another that will be shown below led to the cod collapse in the Atlantic Canada by the 90’s.
Rosenau, Marvin Leslie, and Mark Angelo. Conflicts Between Agriculture And Salmon In The Eastern Fraser Valley / Prepared By Marvin L. Rosenau And Mark Angelo. n.p.: Vancouver : Pacific Fisheries Resource Conservation Council, c2005., 2005. UFV Library Catalogue
The first genetically modified animal has been given the green light to reach dinner plates.
When economic incentives overshadow moral reasoning, people often disregard, or temporarily repress moral arguments, and eagerly turn toward the economic incentives. In January 2009, a 440 lb Bluefin tuna sold for $173,000 (Keim, 2009). The average weight and size of a bluefin tuna is 770 lbs and 2-2.5 m. This high selling price reflects an irresistible incentive to catch these immense fish and sell them to the highly demanding market. Demand for bluefin tuna has grown so high that demand is starting to supersede the supply. In anticipation of resolving this problem, commercial fisheries began large-scale fishing of the tuna. Bluefin Tuna have very fast swimming speeds, which allow them to migrate between cold temperate feeding grounds and warm water spawning grounds regularly (Fromentin and Powers, 2005). Atlantic Bluefin Tuna can sustain cold (down to 3°C) as well as warm (up to 30°C) temperatures while maintaining stable internal body temperature (Block et al. 2001). One problem with the unrestricted fishing of Bluefin tuna is their susceptibility to being overfished. Northern Atlantic Bluefin Tuna in particular have life spans of over 30 years. This causes them to be more vulnerable to getting caught at some point in their lifetimes. In addition it takes them eight years to mature which leads to a very slow reproductive cycle (Fromentin and Powers, 2005). By the time they reach eight, there is a very good chance that they will already be caught eliminating their chance for reproduction. Egg production, for the individual species that do make it to maturity, appears to be size-dependent: a smaller, younger female produces an average of five million eggs, while a larger, older female can carry up to 45 million eggs (Rodriguez-Ro...
With a coastline of over 202 000 km and over a fourth of the world’s freshwater resources, it is no wonder why Canada’s fishing industry is a huge part of its economy.1 Canada exports more than 75% of its fish to over 130 countries worldwide. Many of the 7 million people who reside on the coast depend on the ocean’s resources. In total, Canada’s entire fishing industry is worth around 5$ 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.
One main issue is that the world is biophysically finite, which means that we all have a limit, the more people we have, the less each person should possess. Also, we can’t just increase the number of people uncontrollably and be able to satisfy everyone. The second key issue is, over population. Hardin assumes that every person is selfish, and everyone is looking to benefit themselves. Actions they would be doing are like, having more of what they need which leads them over using the only resources we have left. The third key issue, in Hardin’s point of view, is that we should just forget about the Commons system; meaning there should be a statement or right or law to restrict people from overbreeding. Being able to freely over breed will bring us other problems like losing some of our other freedoms. There should be laws to determine the size of families. Finally, the fourth key issue is to gain peoples approval for the new system that is going to pressure them a lot. Basically, we should make all people understand the consequences of letting them freely breed, and what overpopulation will do to us in the very near future.
Due to the demand many packaging for the fish can find its was back to sea, or when fishermen are out at sea they can leave their garbage. Many nets from the boats and gears can also be found in the water, that fish can later see as food, eat it, and die; this ties back to extinction in fish. There is much pollution and decline stocks in fish because it is very hard to regulate the seas. To fulfill the growing demand for seafood, many companies are forced to fish beyond areas that are supposed to be non-fishing zones. This is because there are hardly any laws or restrictions telling them where they can and cannot fish. Sally Driscoll and Tom Warhol report in, ‘Overfishing’, that itt wasn’t until 1956 where we saw our first regulation, the United Nations organized the first UN Convention of the Law of the Sea or the NCLOS which helped promote rights of all countries by establishing boundaries off shore. Meaning that some seafood fished in certain areas of the ocean cannot be sold in certain countries, and in some areas it is illegal to fish unless you have a permit from that country. Economy also helps make it harder to regulate the seas, in ‘Overfishing’ it is explained that Preisdent Barack Obama brought up Antiquities Act of 1906, that let fishermen expand their fishing areas. The United Nations FAO estimates that 25 percent of all fish trapped in nets are labeled unusable or not licensed for fishing by the
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.
Hardin uses the example of a farmer never letting too many cattle into his pasture. The farmer knows the maximum capacity of his pasture and if he exceeds that amount tragedies can occur such as erosion and weeds. This farmer does not suffer as much as a farmer who uses his pasture as a commons, letting it overload. Hardin is saying the United States should be more like the selfish farmer in regards to immigration. Some everyday commons Hardin uses as examples are air, water, and land. As our population increases our air is becoming more polluted, oceans are becoming unlivable environments, and resources are becoming scarce. We give these commons to everyone, not considering the consequences of doing
Centers for Disease Control and Prevention, National Center for Environmental Health Health Studies Branch Kevin Amos, National Aquatic Animal Health Coordinator, NOAA Fisheries Salmon of the Americas SOTA is an organization of salmon-producing companies in Canada, Chile and the United States whose mission is to improve health, awareness and dining enjoyment of consumers in North America by providing timely, complete, accurate and insightful information about salmon on behalf of the member companies. Ashley Dean, Shwartz,. Mark 2003. Salmon farms pose significant threat to salmon fisheries in the Pacific Northwest, researchers find. Stanford University American Journal of Clinical Nutrition, April 2002, 76:608-613.
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 ...
In Tragedy of the Commons, Hardin began to put a focus on the point that commons problems could not be just simply addressed by technology, he claimed that such problem occurs are because of increasingly population growth and the consumption of limited resources. If the population growth is maximized, then each individual must minimized all resources. Therefore, he didn’t think there is any foreseeable technology could solve the tragedy of the commons on this planet to balance population growth and maintain life quality. He also introduced a pasture theory to demonstrate the situation of common-pool resources. Shepherd hopes to maximize their profit by adding more sheep, as result it brings a consequence with impact both positive and negative: positive impact is the shepherd can get more money from those additional sheep. And negative impact is a worse pasture. However, it’s important to note that the gains and the losses in this theory are not equal. Shepherd get all the benefits, but the losses are transformed to the rest of shepherd, thus, each shepherd will expand their flock size to maximize the profit. When all shepherds got this conclusion, and unrestricted grazing, the pasture capacity will be damaged inevitably.
The Tragedy of the Commons “is a problem that occurs when individuals exploit a shared resource to the extent that demand overwhelms supply and the resource becomes unavailable to some or all” (Wigmore, 2013, August). He explains if by using an example of herdsman caring for their cattle in a common land owned by others. Everyone in the land have the same number of cattle they are allowed to have. If one herdsman was being self-centered things and had more cattle because he was thinking of his needs would then damage the community by “overloading it, erosion set in, weeds take over, and he loses the use of the pasture. He would just worry about his goals now and not the overall outcome which not only affected him, but the other herdsmen as well. (Hardin, 1974,