ESS 130 - Week 12 Lab - Marine Ecosystem.docx

ESS 130 - Week 12 Lab - Marine Ecosystem.docx - Lab 12...

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Lab 12. Marine Ecosystem Name ________________________________ Part I is to be completed during class, part II will be shown within the second half of class but, if you’d prefer, you’re welcome to take it home to complete it. Due at the beginning of class tomorrow (Wednesday, 4/23/19). Part I: A Food Chain Using the data provided below, construct two simple food chains on the page below. Draw arrows between the members of each food chain to indicate the direction in which matter and energy flows. Identify the autotrophs, consumers and decomposers of each chain. Label the trophic levels. 1. Chain one. Diatoms are eaten by krill, which are consumed by a blue whale, which dies in a fjord and sinks into anoxic water where it is digested by anaerobic bacteria. Diatoms - - - 2. Chain two. Diatoms are eaten by copepods, which are consumed by herring, which become a meal for mackerel, which are ingested by a swordfish, which becomes an expensive dinner for a man in a restaurant, who goes swimming and is eaten by a shark, which dies, washes ashore and is decomposed by bacteria.
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  • Fall '18
  • Plankton, trophic level, Phytoplankton, Blue Whale, Krill

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