Monster crabs

Monster crabs

Red king crabs arrived in Europe. Huge, and with no natural predators, they competed with cod for food and had a massive impact on ocean food webs.

In this activity students build up ocean food webs before and after the monster crab invasion. If you wish, they then take the role of a fish company manager who must decide how to react to the invasion.

Learning objective

  • Students will build up an ocean food web and look at the impact of invading red king crabs on this.

    Blueprint curriculum link

    • Unit: Interdependence
    • Concept: Feeding relationships: Food webs link together several food chains and show how energy is transferred between organisms
    • Skill: Models: Use a model to make predictions
    • Learning stage: Analyse

     Activity contents

    • Teachers guide
    • PDF file

    The activity is delivered as a zip file. After you checkout, you will be sent an email with the link to download it.