Water pollution is the contamination of water bodies (e.g. lakes‚ rivers‚ oceans and groundwater). Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds. Water pollution affects plants and organisms living in these bodies of water; and‚ in almost all cases the effect is damaging not only to individual species and populations‚ but also to the natural biological communities. Introduction [pic] Millions
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Hydrosphere The movement of water around‚ over‚ and through the Earth is called the water cycle‚ a key process of the hydrosphere. In physical geography‚ the term hydrosphere (Greek hydro means "water") describes the collective mass of water found on‚ under‚ and over a planet’s surface. The Earth’s hydrosphere consists chiefly of the oceans‚ but technically includes clouds‚ inland seas‚ lakes‚ rivers‚ and underground waters. Hydrosphere refers to that portion of Earth that is composed of water. The
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Lecture 1: What are the 3 domains of life? (Ch. 12‚ Section “The Three Domains of Life”) Bacteria‚ Archaea‚ and Eukarya What marine organism represents the vast majority of the ocean’s biomass? (Ch. 12‚ Section “How Are Marine Organisms Classified?”) Plankton Plankton is a organism that float. Why is a copepod‚ which can swim and propel itself through the water‚ classified as plankton? (Ch. 12‚ Section “Plankton”) Because of its small size‚ it cannot swim very far or fast so its location
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They play big roles in the food web and in the carbon cycle. After a zooplankton dies and sink to the sea floor‚ their bodies still carry their shells and are turned into rock or sediment. Since zooplankton can reproduce so fast they can adapt to acidity better than bigger creatures. The only thing that we are not sure of is will acidification affect jellyfish. It’s possible that jellyfish
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Shipbreaking Activities in Bangladesh and collision of Marine Biodiversity Prabal Barua Associate Program Officer YPSA The marine environment of the coastal water is vital to mankind on a global as well as on local basis concerning energy. Man is becoming a dominant part of the ecosystem in many regions‚ due to his various uses of the marine environment. So the health of marine ecosystem is an important factor in man own existence. The Bay of Bengal which is a potential bode of marine life as well
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Mercury is a metallic element that is naturally found in rocks within the earth’s crust. It is dispersed into the environment in various ways such as soil‚ weathering of rocks‚ volcanoes‚ mining coal combustion‚ power plants‚ municipal waste and even the products used in the household or for health. Since mercury naturally occurs in the environment‚ it can exist in several forms and there are three main forms it takes on; there is Elemental mercury‚ organic mercury and inorganic mercury and each
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BLINN‚ D BOYD‚ C.E. 1970. Production‚ mineral accumulation and pigment concentration Type Ecology. 51:285-290. CAMPBELL‚ I.C. 1978. A biological investigation of an organically polluted urban stream in Victoria. Australian Journal of Marine and Freshwater Research‚ 29‚ 275-291. CHADDE‚ J. I. 2011. Macroinvertebrates as Bioindicators of Stream Health.M.S. Water Resource Specialist Western U.P. Center for Science‚ Mathematics & Environmental Education. CHESSMAN‚ B.C.‚ and WILLIAMS‚ S.A COOPER‚ J.E
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linked to the fish. The fish’s death and rotting bodies caused the water to turn a deep sickly yellow color. Yet‚ the fishes decomposing bodies cause a boom of bacterial and zooplankton growth in the aquatic chamber. The resulting zooplankton and other microorganisms population growth helped the water quality because the zooplankton and microorganisms began to feed on the bacteria that had caused the deep yellow color. As the microorganisms fed on the bacteria the water quality and color quickly became
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Points to use during project: 1) Cholera was first described by Filippo Paccini in 1854‚ but it was Robert Koch’s famous description thirty years later that was finally recognized. 2) Cholera came to Florence in 1854 during the Asiatic Cholera Pandemic of 1846-63. Notes on Cholera (lenntech.com) Cholera is an acute‚ diarrhoeal illness caused by infection of the intestine with the bacterium Vibrio Cholerae. A person may get cholera by drinking water or eating food contaminated with the cholera
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In a process called ‘trophic cascading‚’ the removal of apex predators allows for populations of smaller fish species to increase because the top-down selective pressures on them are weakened. These fish consume zooplankton and the decreased amount of zooplankton results in an increase in phytoplankton populations because they now have less predators. The increase in phytoplankton population then also results in the formation of dead zones as they die and decompose. Oftentimes‚ such as
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