investigated in a species of unicellular alga using the apparatus shown in Fig. 1.1. suspension of unicellular algae in water For Examiner’s Use 10.0 light of known wavelength oxygen probe magnetic stirrer Fig. 1.1 Two different strains of the species of alga were tested using a range of different wavelengths of light. • • Light of known wavelength was passed through the tube containing algae for two hours. The light transmission through the suspension and the oxygen concentration were then measured
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Prior to the Riverwatch Trip I was skeptical as to how much the wastewater treatment facilities in Calgary contributed to the wellness and overall health of the Bow River. However‚ through various tests before and after the treated water has been combined with the river water‚ I concluded that the wastewater facilities are well worth the tax dollars. Calgary is a large city of over 1 million people and as such produces an abundance of waste which should cause nitrate levels in the water to go up
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The Gulf of Mexico Dead Zone The gulf of Mexico’s dead zone is only getting worse doing a great deal of damage to the U.S. economy. The issue in the Gulf of Mexico is the dead zone that has started occurring since 1972 and is only increasing in size. The Gulf of Mexico supplies the U.S. with 72% of their income shrimp 66% of oysters and 16% of fish (Philpott‚ 2013). If the dead zone does not decrease in size fisherman and costal workers will be largely impacted
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Blooms: A Global Overview. In G. M. Hallegraeff ‚ D. M. Anderson ‚ & A. D. Cembella‚ Manual on Harmful Marine Microalgae. Paris: UNESCO. Hegaret‚ H.‚ Shumway‚ S.‚ Wikfors‚ G.‚ Pate‚ S.‚ & Burkholder‚ J. (2008). Potential Transport of Harmful Algae via Relocation of Bivavle Molluscs. Marine Ecology Progress Series Vol. 361 ‚ 169-179. Hoagland‚ P.‚ Anderson‚ D. M.‚ Kaoru‚ Y.‚ & White‚ A. M. (2002). The Economic Effects of Harmful Algal Blooms in the United . Estuaries Vol. 25‚ No. 4b‚ 819-837
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Pitch: This article is written to inform the reader of the issues pose by crown of thorns starfish on coral reefs. The target audience is the general public who may view coral reefs as a tourist destination. There is a need to warn about crown of thorns as research shows that it causes more destruction to corals reefs than bleaching or other disturbances. More details on how these starfish population boomed are given in the article‚ revealing both natural and anthropogenic factors. The article however
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Current and Future Status of Coral Reefs in Malaysia Abstract: Coral reefs‚ also known as the rainforest of ocean‚ are the most productive and biologically rich ecosystem on earth (McAllister‚ 1995). Coral reefs are an important source of food and income to millions of people that are living near coast (Burke‚ et al.‚ 2002). There are about 540 species of hard corals that have been identified in Malaysia in total and there are more than 90% of the country’s reefs are situated off the coast of
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have to be based on the data from bio-cylinder 3 and what has been discussed during the lectures. Some of the possible reasons for the “extinction” in cylinder 1 were the accumulation of ammonia from the fish urine and a lack of oxygen due to the algae growth blocking the photosynthesis of the original elodea. This of course would reduce the amount of oxygen within the cylinder and cause the fish to die from the lack thereof. However‚ upon analysis of the oxygen levels within the first
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the size of coral reefs can be enormous‚ their real impact is on a much smaller scale. Reefs function as food and shelter for fish and marine invertebrates. While the coral itself is an animal‚ through a symbiotic relationship with the unicellular algae‚ coral becomes the primary producer in its ocean ecosystem (Richmond 1993). The reefs are formed by calcium carbonate deposits produced by the coral polyps. According to the legendary Cousteau‚ in his book The Ocean World‚ tube worms and mollusks
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government officials in the last few years have been taking the protection of the Great Barrier Reef into their own hands. After creating an eye on the reef program‚ which specifically targeted the health of the Great Barrier Reef‚ scientists created algae killing bleach that would be applied to infected sections of the reef. Practices worked well until 2014 after a double dose of the bleach. After many tourist encounters with the reef a few individuals took notice in the declining health over the reef
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The effect of fertilized water on growth of Euglena Water is a good habitat for many organisms. The pureness of water has strong effect on aquatic organism (Walter‚ 2008). The altering of water condition could favor for the growth of one certain organism‚ but less favor for other organisms that leads to the competing out other organism by abundance of favor one . So‚ the result goes to decreasing of water biodiversity. Water ecology‚ which studies on the interaction between of biotic and abiotic
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