Roz may see and not see many of the creature in her area. Marine mammals, such as whales and dolphins will be easy to spot. Why? Because they need to come to the surface to breathe. Roz may also spot flying fish, which jump out of the water and may become stranded on her deck. She may catch glimpses of other fish jumping, such as tuna, but most other fish will stay below her boat and may be out of sight.

That being said, Roz is now in tropical oceans. The open ocean tends to be less productive in the tropics (fewer microorganisms is part of the reason the tropical ocean is so clear). The most important and productive ecosystems in tropical seas are in coral reefs, which tend to form in shallower waters.

Now for today's question: Look at the statistics on the Roz Tracker. Roz is attempting to row from Hawaii to Tuvalu. 2,620 statute miles in all. When do you think she will arrive in Tuvalu? Post your predictions to this blog!