a) Describe the physico-chemical qualities of water that are important to aquaculturists. Aquaculture can be defined as the high-density production of fish‚ shellfish and plant forms in a controlled environment. Stocking rates for high-density aquaculture are typically thousand fold greater than wild environments. Modern fish culturists employ both open and close systems to raise fish. Open systems‚ such as‚ the raceways are characterized by rapid turnover of water. Closed systems are commonplace
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stability of the fishes were observed. After 31 days‚ the final length and mass of the fishes were obtained and the results were compared. 5. • The average difference in mass of the fishes subjected to brackish water is 2.945 grams higher than freshwater and the average difference in length is also higher than fresh water by 1.265 cm. • Brackish water is the best water treatment for the growth of Anabas testudineus. • Due to environmental changes evolution occurred as years passed by. The salinity
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1. INTRODUCTION In last decade we can notice a trend of constant growth of environmental pollution in Europe and also elsewhere in the world. Every year European Union produces around 2 billion tone of waste materials and the number is getting 10% bigger every year. There is also a constant increase of carbon dioxide emissions that are a result of increasing consumption of energy and cars. Majority of European Union members is fighting with utmost and more and more frequent weather conditions
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Introduction Fisheries sector occupies a very important place in the socio-economic development of the country. It has been recognized as a powerful income and employment generator as it stimulates growth of a number of subsidiary industries‚ and is a source of cheap and nutritious food besides being a foreign exchange earner. Most importantly‚ it is the source of livelihood for a large section of economically backward population of the country. The main challenges facing fisheries development
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How to Catch a Fish By: P. H. Do you enjoy fishing? Would you like to learn some tips about fishing in a freshwater lake or pond? I live in The Woodlands and I like to fish in lakes and ponds by my house. Fishing is a great sport that can be enjoyed by people of all ages. My Grandpa taught me a lot about fishing and I would like to share some of that information with you. The materials I prefer can be found at most sporting goods stores. My favorite fishing pole is a six-foot All-star
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still the same amounts of food. The reason the population is growing so much is because healthcare has gotten so much better‚ children are surviving birth and adults are living longer. Not getting enough freshwater is also a major issue. Lakes are one of the planet’s most important freshwater resources providing water for domestic‚ agricultural and industrial uses for much of the world’s population. Even though‚ the earth is mostly water‚ only 2.15 percent of all the Earth’s water. Water shortage
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biosphere True/False Warm air rises‚ and cool air sinks. List one type (there are three we talked about!) of disturbance in ecological True/False When an ecologist studies a organism‚ they could be studying a bacteria. 7. Which type of biome (freshwater or marine) is strong influenced by temperature and light? (Circle one) 8. Which zone (aphotic or photic) contains enough light for plant photosynthesis? (Circle one) MATCHING ON THE BACK
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While I have never swam in or boated on Lake Superior I know another Great Lake very well. Lake Michigan is only two block away from my house‚ I have swam in it and I have boated on it. My interest in Superior Connections stems from a few things. One interest is importance of Lake Superior to past‚ present‚ and future people living around Superior. Beside the obvious fact that the surrounding counties in the watershed‚ what are the other benefits or detriments that the lake impact the surrounding
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Desert biomes ■ Grassland biomes ■ Mediterranean Climate biomes (b) Aquatic biomes ■ Freshwater biomes ■ Marine biomes ■ Lakes ■ Wetlands ■ Rivers and Streams 3. Differentiate the different kinds of biomes in a tabulated form based on the following: | DESERT | FOREST | FRESHWATER | GRASSLAND | MARINE | TUNDRA | Description | This biome is the driest; it only receives 50cm of rainfall a year |
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ALARM- A Learning And Responding Matrix. A summary of what Frank Pikardt and Max Reed from Freshwater Senior Campus told us about the system they had devised for their school. As teachers we need to do more than just pass on information‚ we need t o show others how to learn. Literacy needs to be taught specifically in each subject‚ concurrently with the content. ALARM is not an instant fix- at Freshwater Senior Campus number of Grade 6 results increased from 34 in 2006 to 116 in 2010. This was with
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