To control the overfishing and growing industrial fishing market, in 1977 the Canadian Government introduced a 200 mile management zone but by that time most of the ecological damage had started. However, during this time other industries like resource-extraction failed, which put pressure on the fishing industry and even the government had to encourage more catching of fish for exports. However, as stocks of cod fish continued to drastically decline the government finally decided to ban cod fishing in 1992. Though the cod fishing industry boosted the Canadian economy and provided employment for local
When the fish are gone the wildlife that depend on them for food will die also. In the summers the temperature of the water increases and causes a decrease in the amount of food. The warmer waters disturb the normal flow of the nutrients from the cooler water depths. “An El Niño will occur approximately every two to seven years” (wildlife.ca.gov). The effects of an El Niño can be sensed all over the globe for over a year.
Salmon also have a big impact on the environment, supporting many different types of wildlife. Unfortunately though, the salmon population has fallen drastically and since 2007 salmon runs have been decidedly below average. It is interesting to note that the salmon population seems to follow a cyclic pattern of highs and lows that can be seen in the provided graph. Salmon runs in Alaska may be characterized by cyclic periods of high and low abundance that may last for decades. These cycles are varied and generally not well understood.
The act of hunting whales has been around since the beginning of human history. However, overexploitation throughout the last centuries has severely depleted these species. Yet still, thousands of whales are killed each year for profit. Mankind’s avaricious nature for more money has driven these creatures to their demise. Despite that, an increasing number of people worldwide are against commercial whaling.
They take things and just believe it without knowing the truth or doing any research to support the claim. Today in the United States there are approximately three different Sea Worlds located in San Diego, San Francisco, Orlando, and San Antonio. Over the past years, Sea World has begun to lose a lot of revenue and money because of drastic drops in people attending Sea World. According to Michael Calia in his article “Sea World hit by Bad Press; Stock Off 33%” this drop is mainly because of the recent media debate about the treatment of the captive Orcas in Sea World. Publicists and media stated that the treatment of these animals was very bad and they deserved to be set free into the
Also, storms can destroy reefs, also often caused by humans affecting the environment. Around 50% of our coral has died, and this has a major impact on many other organisms, and the world in general. Many fish live in reefs, and need it survive, and this ruins the ocean, the most important part of the Earth. This comes back to hurt us as well. Eutrophication is a process in which excess nutrients
Overfishing happens because fish are captured faster than they can reproduce. With the oceans covering more than 70% of the Earth the health of the marine life is essential for the humans and many other organisms to survive. Each time a boat goes out fishing, the boat on average waste 90% of all the fish they have caught, according to ted.com, this is just one example of overfishing. This means that 90% of the fish are caught but not used for food and they are just thrown out. Wasting fish affects the biodiversity in the oceans since it puts extinction the species to risc, this affects the food
However, of 50,000 species, approximately 4,300 have been considered invasive species (Pimentel, 2004). Of these 4,300, a few are having major effects on the United States and are a threat to peoples way of life. Originally the Asian Carp was introduced by humans in an attempt to address another problem, mainly to remove algae from catfish farms and wastewater treatment ponds in the 1970s. But sometime in the next two decades, the fish escaped their enclosures, most likely due to several large floods in the '90s (Visser), and then they began to spread. Currently the Asian Carp is in 45 states, bighead carp have been collected from 18 of these states, silver carp from 12 states, and black carp from only Illinois (U.S Fish & Wildlife
Freshwater ecosystems have lost a greater proportion of their species and habitat than ecosystems on land or in the oceans; in addition, they are probably in greater danger of further losses from dams, pollution, overfishing, and other threats. In extent, freshwater ecosystems are quite limited, covering only about 1 percent of the Earth’s surface. Yet, they are highly diverse and contain a disproportionately large number of the world’s species." Freshwater life zones that provide important natural resources and natural services to human is being damaged and degraded by humans. • Increased habitat loss.
How the oceans may die is crucial to understand in order for them to be preserved for the survival of the planet. Numerous human activities generate a staggering amount of grave complications for the oceans and its crucial marine life. One of the most direct human activities that causes rapid decline in marine populations is overfishing. Some of the species