These pollutants have reduced water quality, contaminated soils, and damaged the Lake’s ecosystems. Pollution in wildlife has caused fish consumption to decrease, the spread of disease and viruses to increase, loss of fish and other wildlife stock. The closing of beaches and other recreational activities have been another direct result of the
Aquatic Invertebrates: Adaptations and Feeding Guilds INTRODUCTION Global warming and human's authoritative influence on the environment such as deforestation, pollution etc. are taking a bad toll on the diversity of the ecosystem. Global warming which has brought about increase in the temperatures is disturbing the natural cycle of the ecosystem. This has brought upon an increased droughts throughout the world. The droughts and increased heat has had negative impacts on local aquatic invertebrates.
The poisons will kill fish and the reef in which the fish live because there is no precise way to deliver it. The fishermen will dump the poison on the water in a likely spot and catch what floats up. The problem with poison is that it does not choose what it kills, so it kills reefs and poisons the area for new generations, then the fishermen go on to another area to repeat the destruction. [ (Coral Reef Destruction and Coversation) ] 2. Red is the endangered areas In image 2, the most endangered reefs are in areas that are considered “Third World”, where populations have limited access to education.
According to Everglades.org, they’ve “contributed to nearly 70 percent of extinctions in the United States” and are the “primary cause of species endangerment.” The water itself is a major cause of decline to the area, firstly because of poor water management leading to water levels being too low or too high at the wrong times has caused a decline in many species. Secondly, poor water quality has had devastating consequences. The pollution and an abundance of toxins and nutrients has helped to kill off many living things in the
“Apparently the mass of the plastic particles is six times more than the mass of the natural plankton in the area.” This large expanse of ocean has become unhealthy for the animals that feed around the Gyre. “The plastic is found at depths of up to 30 meters. It is literally creating a landmass.” Because not all the plastic’s as it breaks down, and releases large amounts of toxic substances into the water of the Pacific Ocean. Not to mention that the Sea birds and other marine animals mistake these sand like plastics as food, and aren’t able to digest the plastics resulting in a large number of deaths of these animals. We all can contribute in helping the slow the growth of “trash Island” so some call it.
“The reefs within the Hol Chan area near San Pedro Town are showing signs of stress caused by over collecting and damage from boat's anchors” (Encyclopedia of Earth, 2011). Besides the obvious damage caused by boats, the reefs are also over fished and not just by the locals. The Encyclopedia of Earth (2011) states that “for decades, the Sapodilla Cayes and Glover's Reef areas have been illegally fished by Guatemalan and Honduran fishermen. Since there are no closed seasons or size limits for conch and lobster in those countries, much of the area has been depleted of its conch and lobster populations” (Management
According to Frazer (2008), a majority of salmon aquaculture in the Pacific Northwest consists of non-native Atlantic salmon. This is an issue according to Simberloff (2009), because after changes to habitat, research indicates that, “… the second greatest cause of species endangerment and extinction [is introduced species] …” (p. 2). There are several factors associated with invasive species, not the least of which is the spread of disease. Bakke & Harris (1998, as cited in Frazer, 2008) mentioned that hundreds of infections that are rare in wild Atlantic salmon populations are prevalent in farm raised Atlantic salmon. Escaped farmed salmon are then capable of spreading these infections to wild Pacific salmon populations.
One con is that there will be many jobs at the mine, but just not nearly as many jobs that Bristol Bay employs in the salmon industry. Another, and possibly the biggest, disadvantage of building the Pebble Mine is the negative effect on the environment in Bristol Bay. Although the company managing this says that there will be a bad affect on the environment, history tells us otherwise. We can look at the Mount Polley gold mine disaster. In this environmental disaster, 10 cubic meters of water and 4.5 million cubic meters of potentially toxic slurry were spilled into virtually untouched forest, lakes and rivers.
In California, the Basin and Range region lies east of the Inland Mountains region along fault lines. Deserts cover most of the land in the southern part of the Basin and Range region. Death Valley, the hottest, driest desert in California, and the lowest point in the United States, is located in the Basin and Range region. Some of the nation’s highest temperatures have been recorded in Death Valley. It is not unusual for temperatures to rise above 100 degrees Fahrenheit during the day in Death Valley.
Not only is the water unfit for human consumption, it is now destroying the marine ecosystem and this is serious business when you consider how important the ocean's health is to human survival. The level of mercury found in tuna and salmon has already resulted in warnings about how much to consume because it is threatening to our very life. Close