Antarctic Food Web

 

Directions: Students will construct a food web of the Antarctic Ocean. The food web needs to include the organisms listed below. The details of the assignments are as follows:

 

1. List the organisms in the correct sequence in the food web.
2. Identify the organism as a producer (P), consumer (C), or decomposer (D).
3. Draw the arrows so that they show where the energy is going to.

  Organisms to Include in the Food Web:

-         leopard seal                           -blue whale                             -storm petrel

-         killer whale/orca                    -krill (zooplankton)                 -weddell seal

-         diatoms (phytoplankton)       -emperor penguin                 -Antarctic cod

-         squid                                       -bacteria

 

**If you are not familiar with these organisms, use Wikipedia for pictures and diets.**

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example of a Food Web-Temperate Deciduous Forest

 

Producers:               Consumers:                                    Decomposers:

Algae                          Tadpole                                  Bacteria

Grass                          Worm

                                    Grasshopper

                                    Snake

                                    Raccoon

                                    Frog

 

 

 

 

 

 

 

 

 

 

 

 

 

Antarctic Food Chain

2^nd Law of Thermodynamics Problems

 

Hint: Remember the Rule of 10! Organisms can only efficiently use 10 % of the energy they received from an organism at a lower trophic level. The other 90% is wasted as heat energy. Do not forget to place your units with your answers! And, show your work.

1) A leopard seal ate a squid. The squid contained 90,000 Calories of energy. How much did the leopard seal obtain?

 

 

 

 

 

2)  An orca ate the leopard seal. The leopard seal contained 50,500 Calories of energy. How much did the orca obtain?

 

 

 

 

3) A blue whale at 2 pounds of krill. Each pound of krill contained 300,000 Calories of energy. How much did the blue whale obtain?

 

 

 

 

 

4) A Weddell seal ate 1 Antarctic cod. The cod contained 60,100 Joules of energy. How much did the seal obtain?

 

 

 

 

 

5) The emperor penguin ate 2 squid. The squid each contained 45,000 Joules of energy. How much did the penguin obtain?