Freshwater

population, urbanization, and farming are increasing there will soon be a lack of freshwater around the world. South Africa has been affected by the aforementioned issues. Water scarcity will affect the world drastically, if the global population would realize the affects most people would then realize how important freshwater is to the world. Provided that, developed countries have more technology they are more able to get freshwater from places that could be hard to reach for developing…

Hydrologic cycle refers to the movement and storage of water between the land, oceans and atmosphere (Kuchment 2004). It involves several main processes, which include evaporation of water from the oceans, condensation of the atmospheric moisture to form clouds, precipitation, transpiration and so on (Hubbart 2011). There are mainly three types of human activities that affect the hydrological cycle, namely surface water regulation related to lakes and rivers, water release and abstraction, and…

Aquaculture is the farming of aquatic organisms such as fish, crustaceans, mollusks and aquatic plants. Aquaculture involves cultivating freshwater and saltwater populations under controlled conditions, and can be contrasted with commercial fishing, which is the harvesting of wild fish (Task Sheet). Aquaculture is taking over the commercial fishing industry as it is proving to be a much more effective and efficient way of breeding and producing fish. Barramundi got their name from the…

Practice with a freshwater tropical aquarium is important before upgrading to the more advanced water tank for your fish pet.Brackish Aquariums The last type of aquarium in your bucket list should be the brackish aquarium because brackish water tank systems can be tricky to maintain. Fish pet owners who use this type of water tank are very rare. A mixture of freshwater and saltwater is needed to produce the right type of brackish water. It’s…

NicheScience. An every increasing population spurs concerns over an increasing freshwater required. The four main causes of this water scarcity are dry climates, drought, desiccation, and water stress. Water stress refers to the low availability of water caused by an increasing population. Countries are classified as water stressed when the amount of reliable runoff per person is below 1700 cubic meters per year. The depletion of freshwater sources can be seen in many rivers and streams as they…

that solar radiation will cause temperatures to increase which can cause more precipitation. I think ocean currents help keep temperatures overland in check, either warming up an area or cooling it down. Climate change melts glaciers adding more freshwater into the oceans, but it also increase the temperature of the water. The melting glacier can also cause sea level to rise. Climate change can affect the chemistry of the water and also increase the temperature in the water, and animals that…

According to Quevauviller, et al.(2008) economic development will accelerate demand on freshwater sources. Quevauviller, et al.(2008) states that ensuring good water quality measurements is key to compare data worldwide and inevitably provide a platform to base decisions relating to the management of water…

of water such as freshwater system or a saltwater system. The application of understanding aquatic ecosystems is how species adapt and inhabit a specific body of water that they reside in and the role that different water systems play in the survival of these various species. It is also important to understand the biodiversity within aquatic ecosystems to recognize why and how a wide range of diverse species can maintain a healthy lifestyle in an aquatic system such as a freshwater lake or…

This study examined the effects of physical factors on diversity in freshwater environments by observing invertebrate diversity in riffles and pools in a freshwater stream. It was hypothesized that differences in invertebrate diversity between riffles and pools would be due to physical factors in the environment. To test this hypothesis, invertebrates were collected from each environment and classified by their taxa, and Shannon-Simpson indices were produced from these data to analyze the…

economically important for human consumption. Protein and vitamins content in fish flesh varies from high to moderate and make it as rich source of protein diet. Fishes of siluroid order ranges from freshwater to brackish waster to swamps and marshes both in temperate and tropical regions. The freshwater catfish, Clarias batrachus from siluroid order is a native specie of tropical south-east Asia and commonly known as “Magru” in India…