Speech - DEBATE SPEECH-I plan on narrowing this down once I...

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DEBATE SPEECH-I plan on narrowing this down once I can compare it to all of your speeches and see what is overlap. Also, If you have anything that relates to what I already have and don’t want to or don’t have time to use it I can incorporate it. I) Use of fishmeal in feed limits the positive impacts of aquaculture on the wild fish stocks. A) 45% of world aquaculture products are farmed using a modern compounds feed formulated for multiple ingredients. B) Compound feeds for carnivorous fish and marine shrimp are mainly contain fishmeal and fish oil, which supply important amino and fatty acids that cannot be obtained from. C) Feeds for herbivorous fish, like carp, only need very small amounts of fish oil because the fish utilize plant-based proteins and oils more efficiently than carnivorous fish. Despite this fact, 15% of their formulated food is fishmeal, which far exceeds needed amounts. This is partially because of lacking information on the dietary needs of these fish. D) The dietary elements or amount of fish protein required in the feed depends on the source of fishmeal being used, the species of fish, the type of aquaculture being used and other factors of the environment. 1) Intensive and semi-intensive aquaculture systems can use 2-5 times more fish protein in the fishmeal that use than they produce. 2) Extensive and traditional systems use very small amounts of fishmeal, but do use a lot of nutrient-rich minerals, which are added to the water to cause the growth of the organisms that the farmed fish eat. 3) The proportion of fishmeal in aquaculture is a lot higher than that in terrestrial farming. 4) For the ten most common farmed fish about 1.9Kg of wild fish is required for every 1Kg produced and Carnivorous species need 2 to 2.5 as much as is produced. 5) Only three of 10 species currently farmed require less input than they produce. E) From 1986 to 1997, 4 of top 5 and 8 of top 20 captured species were used in feed production for aquaculture and livestock industries. All of these fish were small pelagic fish. F) As the aquaculture industry expands increasing amounts of small pelagic fish will need to be caught to make feed causing devastating effects on the marine ecosystems and the business of aquaculture is growing. G) Farmed fish totaled 29 Megatones in 1997 and 10 Mt in 1987. H) This dependence on the wild fish stocks will also limit the growth of the aquaculture industry itself since most of the fish being caught for feed are already listed as overexploited or depleted. I) Further depletion of small pelagic fish stocks will result in harm to other wild fish stocks, which prey on these fish. It will also result in effects to marine mammal and bird populations. The interactions between these ecosystems have been well documented in the Peruvian upwelling system. J)
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This note was uploaded on 07/01/2009 for the course MNS 320 taught by Professor Staff during the Spring '08 term at University of Texas.

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Speech - DEBATE SPEECH-I plan on narrowing this down once I...

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