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Investigating Behavior of Krill
http://pal.lternet.edu/sites/default/files/files/Investigating%20Krill%20Behaviors%20FINAL%203%3A4%3A14.pdf

Beth Simmons, Palmer Station (Antarctica) LTER

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Teaching Tips | Science | Pedagogy | Technical Details

Teaching Tips

  • Most items needed to teach this activity are found in typical classroom, but it will be necessary to order some supplies and brine shrimp in advance.
  • Background information for teachers is included. Additional background information for students provided by the educator might be helpful.
  • Instructions to students in both the lab activity and extended challenge might need additional clarification from educator, such as the purpose of lids for cups, diagram/photo of lab setups, labeling of containers, clear learning objectives, explanation of the term proxy, and why brine shrimp are a good substitute for krill.

About the Science

  • This is a lab activity in which students use brine shrimp as a substitute for krill to investigate how changes in environmental conditions (light, water temperature, water movement/currents, and magnetism) affect brine shrimp behavior.
  • Gravity and magnetism are lumped together, perhaps implying that they have the same effect on shrimp/krill behavior.
  • Comments from expert scientist:
    - Introduction very clearly connects the behavior and life cycle of krill to climate change
    - The graphics are simple yet effective
    - The experiment is directly relatable to the actual environmental conditions of krill (other than the species - but behavior is similar!)
    - The background information is great and packed full of information.
    Possible Enhancements:
    - It would be great to have the students discuss between themselves (not necessarily answer a question) about the 3 graphics of seasonal variability of krill movement
    - I think the resource could be even stronger with some definitions given by students (such as: zooplankton, phytoplankton, forage, etc.)
    - Asking students to convert 1 degree C to degrees F (give them the conversion factor)

About the Pedagogy

  • Activity is a fun, hands-on investigation for students.
  • Well thought-out lab with explicit LTER connection. Uses common supplies and provides range of suggestions for alternative methods of delivery. Some background information, activity sheets, and follow-on inquiries provided. <lik>The educator must provide assessments.

Technical Details/Ease of Use

  • Educators can use materials list to acquire common lab materials.

Next Generation Science Standards See how this Activity supports:


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