WebApr 25, 2024 · This video is for Edexcel IGCSE Biology 9-1 but is relevant for many GCSE Biology courses. It covers the following objectives from the syllabus 5.9B Understa... WebBenefits of fish farming. Most fish are still caught in the wild (i.e. in the open ocean or in freshwater rivers and lakes) However, overfishing has lead to dramatic declines in many fish populations Fish farms are ways of raising large numbers of fish in a small space to provide food (protein) for humans; Fish are bred in large tanks or cages to minimise energy …

Fish Farming: Grade 9 Understanding for IGCSE Biology 5.9B

WebFish can be farmed in tanks so that the conditions and water quality can be controlled. Temperature, oxygen levels and pH levels can be monitored. The water can also be filtered to remove waste including leftover food and excretion. All of these together prevent the water becoming polluted. An added benefit is that it is really easy to control ... WebMar 16, 2024 · Define the term factory farming and give examples of animals farmed in this way. Evaluate modern farming techniques. Explain why some fish stocks are declining and why this is a problem. Describe ways that fish stocks can be conserved. Give an example of sustainable food production. It will take 2 lessons to cover this topic. reception cdd.com.au

Food production Crops & Animals Fish Farming - Online …

WebJun 9, 2016 · 5.9 B explain the methods which are used to farm large numbers of fish to provide a source of protein, including maintenance of water quality, control of intraspecific and interspecific predation, control … WebMay 15, 2012 · Complete the table by stating how each method helps to increase fish production. (3) Method How method increases fish production adding antibiotics to the water using nets to cover tanks feeding small quantities of food frequently (c) Fish are a good source of protein in the human diet. Describe what happens to fish protein in the … reception celebration