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Biomagnification / Bioaccumulation Activity

Biomagnification / Bioaccumulation Activity. “You are what you eat”. Aquatic Food Chain. Algae  Krill  Fish  Seal  Killer Whale Which is most abundant & Why? . Green Blocks. Are TOXIC algae! Count the total number of blocks you have collected

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Biomagnification / Bioaccumulation Activity

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  1. Biomagnification/Bioaccumulation Activity “You are what you eat”

  2. Aquatic Food Chain • Algae  Krill  Fish  Seal  Killer Whale • Which is most abundant & Why?

  3. Green Blocks • Are TOXIC algae! • Count the total number of blocks you have collected • Count the number of green ones you have collected • Calculate the % of toxins in “your body”: 100 x [number of greens]/[total number] =

  4. Krill • If there are any krill still alive that “ate” ANY green blocks algae, they are now dead.

  5. Fish • If there are any fish still alive that “consumed” 20% or more green block algae, they are now dead.

  6. Seals • If there are any seals still alive that “consumed” between 20%-30% green block algae, they are now sick. • If there are any seals still alive that “ate” over 30% green block algae, they are now dead.

  7. Killer Whale • If the killer whale “ate” between 20%-30% green block algae, it is now sick. • If the killer whale “ate” over 30% green block algae, it is now dead.

  8. Biomagnification • As you move up the food chain, the number of toxins increases.

  9. Bioaccumulation As an organism ingests materials, (i.e. Toxins), it builds up faster than it can eliminate them.

  10. Biomagnification Biomagnificationvideo

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