predict the outcome

If one of the organisms in a food web is removed, or a new organism is introduced, other organisms in the food web may be affected. What do you think the effect might be if sharks were removed from this ecosystem? What if all of the octopus died?

What implications might this have on the other organisms in this food web?

Back in the 1960s and 70s, southern bluefin tuna was highly overfished. Extensive research and strict regulations helped now change things around.

Watch the video above and use your food web to create a presentation / write a paragraph to predict what may have happened if regulations weren't put in place.