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SENIOR HIGH SCHOOL – YEAR 2 SECTION 1 FISH BIOLOGY (II) General Objectives The student will
1. be aware of the basic life processes in fish
2. recognise the behaviour
of fishes in their habitat 3. appreciate the environmental conditions necessary for fish survival
4. appreciate the importance offish health
5. be aware of the basic principles in
fish genetics and evolution UNIT SPECIFIC OBJECTIVES CONTENT TEACHING AND LEARNING ACTIVITIES EVALUATION UNIT 1 LIFE PROCESSES – EXCRETION, REPRODUCTION AND GROWTH The student will be able to
1.1.1 describe excretion in fishes.
1.1.2 describe reproduction in fishes.
1.1.3
describe growth in fishes Excretion in fishes The process of excretion and
Osmo-regulation in fishes. Excretory products of fishes. Reproduction in Fish
-
gamete formation - spawning
- fertilization
- parental care
Growth in fishes Life cycle, factors affecting growth. (e.g. temperature, dissolved oxygen,
nutrients, food availability, competition).
Students to use diagrams and information from internet sites to learn about the processes of excretion and osmo-regulation in fish. Student to discuss the excretory products of fishes. Students to discuss reproduction in fishes according to the topics listed under content. Students to identify male and female tilapia. Students to examine eggs of gravid/berried fish. Students to discuss fish growth and factors which affect their growth. Students to monitor growth stages in fish kept in an aquarium. They should keep records of environmental factors that affect the growth offish in the aquarium.
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