Essay On Freshwater Ecosystem

Away from earth it is usually a gas. This moisture is a blessed treasure, and it is our basic duty to preserve it.” This means that we need to have marine biologists to help preserve the water and the world below it. Being a marine biologist means that you are willing to help not just animals but the world and the water we drink. As a marine biologist there are many opportunities and many risks to take. I know that when I grow up I want to become a marine biologist to help the Earth.

They break down dead biological matter and waste products and convert them into useable energy; returning important materials to the environment. Decomposers are a particular important feature in the Great Barrier Reef considering the heavy bio-load. Main decomposers inside the reef include bacteria, sea cucumbers, some species of snails, crabs and bristle worms. Bacteria sis not only vital for the Great Barrier Reef’s food web, but is also said by scientists that it could be the key to keeping the coral healthy and able to withstand the impacts of global warming. Dr Tracy Ainsworth stated “it is very likely that these microorganisms play a vital role in the capacity of coral to recovering from bouts of bleaching caused by rising temperatures.” Corals rely on these good bacteria’s crucially although we don’t yet understand these microbe’s ell enough to know how they influence coral survival, which is vital in maintaining the food web of the Great Barrier Reef.

The University of Leeds (MSc in Biodiversity and Conservation with African field course); University of Aberdeen (MSc in Ecology and Conservation); and University of Bournemouth (MSc in Biodiversity Conservation) are the institutions and the courses I have selected. Apart from strengthening my roles as an ecologist, the courses will add on new and valuable skills of international standards. The courses are run by internationally renowned researchers and experts in the field, and who are actively involved in the application of ecological research to environmental management and nature

pulex. Increasing salinity of freshwaters have a negative impact on the survival rate and growth of Daphnia (Ghazy et al., 2009), and rising water temperatures increases the mortality of D. pulex. The effects of these environmental stressors on Daphnia are frequently investigated, but mostly just the effect of one stressor and not the effect of an interaction between multiple stressors (Hall & Burns, 2002; Heugens et al., 2001). It was hypothesized that a fast response in high mortality rates would occur when D. pulex is exposed to an environment with higher or lower temperatures (15, 18, 21 & 24°C) than 18C in combination with a salinity (55 mg/L, 150 mg/L, 500 mg/L, 2100 mg/L) that significantly more deviates from the control concentration of 55 mg/L. We hypothesized that the highest survival rate, the highest number of offspring per adult and the earliest offspring would be observed at the control group (18°C/ 55 mg/L).

Introduction In order for a coral reef to be productive and healthy, the water quality in the ocean should be maintained. Water quality not only affects coral reefs, but the other organisms that live on it and are involved with the natural food chain. Some of the factors that can influence water quality are nutrients, temperature, salinity, dissolved oxygen, turbidity, light, and chlorophyll present. Water is essential to every living organism because it helps with respiration, maintaining body temperature, digestion and provides energy. This experiment involved taking water samples from Ferry Reach off the BIOS dock and analyzing different factors to determine general conclusions about how water quality affects reef ecosystems.

In some case “human activities have been and are continuing to alter the environment on local and global scales. Many of these changes are leading to dramatic changes in the biotic structure and piece of ecological communities, either from the mislaying of species or from the introduction of exotic species. Such alterations can preferable change the ways in which ecosystems work. Altered biodiversity has led to widespread cover for a number of both market (e.g., ecotourism, “mining” for medicines) and non-market (e.g., ethical, aesthetic) explanation” (Barbier et al. 1995, Kunin and Lawton 1996, Schwartz et al.

World wildlife stated that Humans and animals face new challenges for survival because of climate change. More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people’s livelihoods and communities. (Source 5) . Meaning that the longer we let it climate change affect our planet the higher the chance of the increase in tides, hotter heat storms, and drought.In the next several decades, storm surges and high tides could combine with sea level rise and land subsidence to further increase flooding in many regions. According to Nasa, Sea levels continue to rise after 2100 because the oceans take a very long time to respond to warmer conditions at the Earth’s surface.

2006). The consequences are changing from river to catchment area of dams that the water in this area is still water. This reason disrupts many species living in the river because water flow changes in dams (McCartney

Aquaculture in India Aquaculture is the cultivation of the natural produce of water (such as fish or shellfish, algae and other aquatic plants). Mari culture is specifically marine aquaculture, and thus is a subset of aquaculture. Some examples of aquaculture include raising catfish and tilapia in freshwater ponds, growing cultured pearls, and farming salmon in net-pens set out in a bay. Fish farming is a common kind of aquaculture. India offers a huge potential for aquaculture development.

If you work hard enough, you can help save animals too. Entering the world of Marine Biology can be an amazing thing! Let’s look more into it. Q: What is the study of Marine Biology about? A: Marine Biology is the scientific study of organisms in the ocean or other marine bodies of water.