This, in turn, can affect habitat quality for plants and animals that live downstream. Biodiversity may be lost if aquatic plants and animals cannot tolerate changing water conditions. When large volumes of water are pumped from a stream or river, water chemistry can change significantly with a drop in water level. Temperatures may rise and oxygen levels may drop, affecting aquatic species that don't have a wide tolerance. Biodiversity may also be reduced if invasive species, such as the zebra mussel or golden algae, are introduced into a waterbody during the drilling process.
Dissolved oxygen levels can also cause fish to suffocate and be more susceptible to diseases. Construct a hypothesis – Based on your observation in Question 1 and your background research in Question 2, develop a hypothesis statement that addresses the relationship between dissolved oxygen in the water sample and the number of fish observed in the body of water. Answer = If the dissolved oxygen level is high in a body of water, there will be a low number of fish. The higher the dissolved oxygen level the higher the death rate of the current fish. 3.
A spill in any of the deep sea areas would reduce the biodiversity of that area through reductions of bird populations, fish-stocks and populations of marine mammals. All of which are already under severe threat of over fishing and habitat disturbance without this imposed threat. Furthermore the contamination of coastal and coral ecosystems will all lead to to damage on the livelihoods of fishermen and people involved the local tourism. The 2010 Deepwater Horizon oil spill in the Gulf of Mexico has been described as the worst environmental disaster in the United States, releasing about 4.9 million barrels of crude oil making it the largest accidental marine oil spill. Most of the impact of this was experienced by the marine species.
The ocean dwellers are virtually helpless, and they will ultimately have to suffer the consequences that have been created mainly by humans. Over the past few years there has been a significant change in marine life. Coral reefs are becoming endangered due to high carbon dioxide levels and effects of warming. Large predators, small fish, and other organisms make their homes in coral reefs. A process called mass bleaching has also become a danger to coral reefs.
In order to prevent fish from spoiling, a freezer system would be necessary, which in turn would be dependent on a generator which would require a significant quantity of fuel to run. In order for Anuta to cover those costs and still profit, they would have to accumulate and produce fish at a much higher rate. They would still have to satisfy their subsistence economical needs as well. Another problem is that by exploiting near-by reefs, supplies could deteriorate at a rapid
Loss of soil will decrease the ability to retain moisture and specially essential nutrients for plant growth. Climate changes have an impact in plants and animals they are sensitive to climate changes and they are many species that could be affected. Indeed cold water species like fish. Reptiles such as turtles have TSD temperature depended sex determination. If the temperature increases 4C it would eliminate male offspring.
The continuation of unrestricted fishing will worsen world hunger among impoverished coastal communities, many of whom depend on the abundance of fish to feed themselves and their families, and result in ultimate environmental chaos and the extinction of thousands of In recent years, the demand for fish, a healthy food rich in omega-3 fatty acids and lean protein, has sky-rocketed. This is in part due to increasing demand for healthier sources of protein in wealthier nations. In fact, the amount of fish in the oceans has significantly decreased. The New York Times reports that, “according to commission figures this year, 63 percent of stocks in the Europe’s Atlantic water are overfished” and “83 percent of its Mediterranean stocks” and some “2/3 of its Baltic stocks” (Jolly, 2011). In the more recent years, fishermen have discovered ways of fishing that give the fish no chance of survival.
Consequences The most conspicuous effect of cultural eutrophication is the creation of dense blooms of noxious, foul-smelling phytoplankton that reduce water clarity and harm water quality (Figure 2). Algal blooms limit light penetration, reducing growth and causing die-offs of plants in littoral zones while also lowering the success of predators that need light to pursue and catch prey (Lehtiniemi et al. 2005). Furthermore, high rates of photosynthesis associated with eutrophication can deplete dissolved inorganic carbon and raise pH to extreme levels during the day. Elevated pH can in turn ‘blind' organisms that rely on perception of dissolved chemical cues for their survival by impairing their chemosensory abilities (Figure 3) (Turner & Chislock 2010).
CCS fitted plants experience reductions in overall efficiency by 8-30% because of ‘energy penalty’. Though consequentially, CCS plants could result in reduced CO2 emissions and improved environmental quality, the efficiency losses in the process leads to elevated use of fossil inputs which in turn results in more fuel extraction, need for more CO2 transport and storage, more particulate pollution (air and water) and landscape destruction and geo-engineering. Thus, there could be significant spin-off effects from an ethical perspective. For instance, need for more fuel extraction shall further reinforce the ethical contestations on the already notorious mining industry. Leakage (slow and abrupt) of CO2 during transport and storage besides posing health risks to humans and local flora and fauna may balance out the net effect of CCS on global warming.
Desertification is spreading and water supplies are decreasing at an a rate faster than nature can replace it. This begs the question as to why they have not put into place restrictions and plans to save the ever deteriorating environment. In addition to environmental decline the economic well being of the country leaves much to be desired. The World Bank and other such agencies have taken fiscal responsibilities away from the states as well as cutting expenditures on government payrolls, health care, education and other such public services. Unfunding these public services creates and propels the poor situation that these countries are in.