Hvjhv Essay Example

Hvjhv Essay Example Hvjhv Paper Hvjhv Paper The Sardine Crash The Ocean is one of the most important sources of food. From the ancient times, humans have used its resources for food. Fish is the most significant seafood harvest. Since ancient times, fishing has developed and increased. Before, people didnt have good techniques for successful fishing compared to todays fishing equipment. Therefore, because of efficient equipment and the significance of fishing in our society, many kinds offish are in danger of disappearing. Overfeeding is a very big problem today. The Sardine is one of the most useful kinds of fish. It is a very small fish compared to all the big fish in the sea. The article, Sea Food Crisis: Time for a Sea Change by Paul Greenberg, from National Geographic Magazine, demonstrates that in regards to the sea food chain, little fish have a big impact on bigger fish and even humans are affected by this ocean food web. By this definition, sardines are the first-order consumers which are very important for ocean predators as a main source of food. So, people consume a lot of big fish whose existence depends on sardines. Overfeeding and climate change are the possible causes of sardine crash which have many dangerous effects on the ecosystem and humans, and these problems require immediate solutions to save the first-order consumers. Sardine crash can be a very big problem in history. People indicate two main causes of this crash which are overfeeding and climate change. An increase of fish consuming causes the opening of new fishing grounds. Today all the oceans are used as a fishing areas. Many of these areas are already overfilled. In the article Sea Food Crisis: Time for a Sea Change, Paul Greenberg states The catch from high-sea areas has risen to nearly ten times what it was in 1950, from . 6 million metric tons Sashaying 2 to around 13 million metric tons. According to this definition, fishing areas are increasing very fast. Fish is very expensive today and for many people it is a main source of their income. Also, huge number of sardines is used on fishing farms as a food for bigger fish. Therefore, sardines are used very widely. Another cause of the sardine crash is a climate change. If the climate change, the temperature of oceans, seas and lakes will change too. So, our oceans and fish stocks maybe under threat from changing water temperature. In the article West Coast Sardine Crash Could Radiate Throughout Ecosystem from Los Angles Times by Tony Barbara, the author states One factor is a naturally occurring climate cycle known as the Pacific Decal Oscillation, which in recent years has brought cold, nutrient-rich water to the West Coast. While those conditions have brought a boom in some pieces, such as market squid, they have repelled sardines. Sardines need a specific temperature to live or they will die and it will effects people as well as the big predators. These causes have many bad effects on the ecosystem and humans. Many things depends on these small fish. If the number of sardines decreases, there will be no food for big predators as well as there will be no fish for people to consume. In the article West Coats Sardine Crash Could Radiate Throughout Ecosystem, Barbara says The sardine crash has prompted steep cuts in the amount Sherman are allowed to catch, and scientists say the effects are probably radiating throughout the ecosystem, starving brown pelicans, sea lions and other predators that rely on the oily, energy-rich fish for food. According to this definition, not only fish and people depend on the amount of sardines, but also big predators like sea lions and pelicans consume sardines. Such a small seafood harvest plays such a big role in our world. What seems like an insignificant factor in our food chain ultimately proves to be very important . If there is no food for the oceans big predators including sea lions and