HomeJSS 2Agricultural Science Jss 2Definition of Fishery – Meaning, Classification, and Examples

Definition of Fishery – Meaning, Classification, and Examples

Lesson Plan: Definition of Fishery

Subject: Agricultural Science

Class: JSS 2 / Basic 8

Term: Third Term

Topic: Definition of Fishery

Behavioral Objectives:

By the end of the lesson, students should be able to:

  1. Define fishery.
  2. Identify various examples of fish.
  3. Explain the classification of fish.
  4. List other types of aquatic organisms.

Keywords:

  • Fishery
  • Aquatic organisms
  • Freshwater fish
  • Saltwater fish
  • Bony fish
  • Cartilaginous fish

Instructional Materials:

  • Charts and pictures of different types of fish
  • Video clips showing fish farms and aquatic life
  • Samples of dried fish and fresh fish
  • Diagrams of fish body parts
  • A visit to a nearby fish farm

Lesson Development

A. Introduction (Building Background/Connection to Prior Knowledge)

The teacher asks students:

  1. Have you ever seen a fish?
  2. Where do fish live?
  3. Can you name any fish you know?

The teacher explains that fish are aquatic animals that live in water bodies and are a source of food for humans.

B. Lesson Explanation (Content Development)

1. Definition of Fishery

Fishery refers to the management, production, and harvesting of fish and other aquatic animals. It involves fish farming, capturing fish from natural sources, and ensuring sustainable fishing practices.

Fish belong to the group of aquatic vertebrates, meaning they have backbones. They are well-adapted to living in water with body features such as:

  • Streamlined shape for easy movement in water.
  • Gills for breathing.
  • Swim bladder for maintaining balance.

Fish and other aquatic animals are found in ponds, lakes, streams, rivers, oceans, lagoons, and swamps.

2. Examples of Fish

Some common examples of fish include:

  • Freshwater fish: Catfish, Tilapia, Nile perch, Mudfish
  • Saltwater fish: Shark, Mackerel, Croaker, Dogfish, Rays

3. Classification of Fish

(A) Based on Habitat

  1. Freshwater Fish – Live in fresh water such as rivers, lakes, and ponds.
    • Examples: Tilapia, Catfish, Mudfish, Nile Perch
  2. Saltwater Fish – Live in salty water such as oceans and seas.
    • Examples: Shark, Mackerel, Croaker, Dogfish

(B) Based on Morphology (Structure)

  1. Bony Fish – Have bones in their body structure.
    • Examples: Catfish, Tilapia, Mackerel, Croaker
  2. Cartilaginous Fish – Have cartilage instead of bones.
    • Examples: Sharks, Rays, Dogfish

4. Other Types of Aquatic Organisms

Apart from fish, other aquatic organisms exist and are used by humans.

  1. Crustaceans (Shellfish) – Prawns, Shrimps, Crayfish, Lobsters, Crabs
  2. Reptiles – River Snakes, Turtles, Crocodiles
  3. Mammals – Whales, Dolphins, Seals, Hippopotamus
  4. Molluscs (Snails) – River Snails, Periwinkles, Oysters, Squid, Clams

C. Class Activity

  1. Teacher arranges a visit to a nearby fish farm for practical exposure.
  2. Students observe different types of fish and their characteristics.
  3. Teacher presents pictures and charts on fish and fish products.

D. Evaluation (Assessment Questions)

  1. Define fishery.
  2. List two examples of freshwater fish.
  3. Mention two examples of saltwater fish.
  4. What are bony fish? Give two examples.
  5. What are cartilaginous fish? Give two examples.
  6. Mention two types of aquatic organisms apart from fish.
  7. Give two examples each of:
    a) Reptiles
    b) Molluscs
    c) Crustaceans

E. Conclusion

  • The teacher summarizes the lesson by emphasizing the definition of fishery and the classification of fish.
  • Students are encouraged to explore more about fish farming and its benefits.

Sea foods; types of fish in local and sea water, nutritive value of fish, classes of sea foods, methods of cooking

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