Introduction to Aquaculture. MCQS. 1. The science of raising aquatic plants or animals is: (a) Apiculture (B) Sericulture (c) Aquaculture (d) Pisciculture 2. Aquaculture is totally dependent on the: (a) Quality of H2O (b) Quantity of H2O (c) Both quality & quantity of H2O (d) None of above 3. The newest kind of aquaculture in which cleaning & reusing of H2O occurs is: (a) Pens (b) Ponds (c) River (d) Recirculating tanks
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ultraviolet light. Unfortunately‚ Chlorofluorocarbons (CFCs) have been released into the atmosphere and have contributed to the depletion of this important protective layer. This will cause humans suffering like skin cancer and UV radiation may kill plankton. CFCs will also cause global warming. We should take action to protect our ozone layer. We have to ban the use of CFCs products. United State have already signed a treaty to phase out CFC production‚ known as the Montreal Protocol. Besides‚ we
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Bathymetry Paper Bathymetry is a very interesting study of underwater depth in large bodies of water. I find it interesting because for much of the time humans have lived on this earth‚ we have not had the opportunities that we have now with technology. By being able to measure the depths of large bodies of water we can better understand the ecology at certain depths. It has been easier for us to learn the scientific effects humans have had on dry land. But with the amount of fishing‚ dumping
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THE IMPACTS OF HIGHWAY ON WILDLIFE IN ALABAMA AND THE US Road construction and operation often cause the topography‚ vegetation‚ runoff and micro-climate characteristics to significantly change‚ resulting in interference to wildlife‚ forcing original living habits and activity patterns to change. For example‚ traffic noise affects the communicating‚ living and breeding activity of birds. In 2011‚ an estimated 300 dead birds have been found on the side of the I-65 highway in Alabama; some large habitats
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It is thought that archaea and bacteria were diverged early in their existence because of all the dissimilarities between the two groups. Both bacteria and archaea are enclosed in cell membranes. Archaea have a single cell membrane that absences a peptidoglycan wall and also their genetic transcription and translation‚ the two main processes in molecular biology do not show the typical bacterial features‚ but are quite similar to those of eukaryotes. Archaea are more related to eukaryotes‚ even though
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Extinction of Dinosaurs Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth. Dinosaurs were a very successful and diverse group‚ dominating the terrestrial environments of the earth for 160 million years. The apparently sudden mass extinction of dinosaurs marks the boundary between the Cretaceous and Tertiary periods. Though there is not one definitive explanation to explain dinosaurs’ extinction‚ there are various theories that attempt to account for the
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website: “The big fish‚ the bill fish‚ the groupers‚ the big things will be gone. It is happening now. If things go unchecked‚ we’ll have a sea full of little horrible things that nobody wants to eat. We might end up with a marine junkyard dominated by plankton” (Fishing down the food web‚ para. 1). Among the scientific community there is little argument on how to resolve this issue. Research has found that the situation is reversible if addressed now‚ but states that it will require a change in
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a change in temperature of water affect the respiration rate of a goldfish? Introduction: “The goldfish is a domesticated subspecies of a carp like fish called Carassius auratus. Goldfish are usually kept as pets‚ feeding on fish food‚ algae‚ plankton and other small aquatic life forms. Though goldfish are one of the easier species of aquatic life to care for‚ their respiratory systems are just as complex as any other fish. Like other aquatic animals‚ goldfish have a one-way flow respiratory
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* Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals‚ which in turn consist of polyps that cluster in groups. The polyps are like tiny sea anemones‚ to which they are closely related. * Coral reef ecosystems support a variety of human needs. They are important for subsistence‚ fisheries‚ tourism‚ shoreline protection‚ and
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skeletons‚ when the carbon dioxide increases the carbonate ions become less abundant. This means that animals are then in trouble of losing their homes or shelter from surrounding predators in the ecosystem. The structures of clams‚ shallow water corals‚ plankton‚ sea urchins‚ oysters and deep sea corals could be ruined from the increase of the carbon dioxide in the atmosphere. Some certain species of fish may lose the ability to detect predators in the more acidic ocean‚ with all these changes it will affect
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