- #1

Illyaria

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2. You count 50 copepods in 1 mL of the plankton net's collection vial.

A. Estimate the number of copepods in the entire collection goal.

B. Estimate the number of copepods/L of the seawater that you sampled.

C. Estimate the number of copepods in the top 1 meter of the Pacific Ocean.

Relevant information:

Net measurements:

- the circumference of the circular mouth of the net is 47cm. The length of the net is 211cm. The collection vial holds 1000 mL.

My attempts:

1. I determined the volume by mutiplying 47 and 211. I then multipled that answer by 100 to get 9.917x10^5 cm. I converted that to liters and got 9.917x10^2 L.

2. The collection vial is 1000 mL so I multiplied 50 copepods by 1000 to get 50,000 copepods for part A.

Part b: I converted 1 mL to L and divided my answer (50,000) by it to get 5x10^7 copepods per liter.

Part C. I don't even know where to begin but I guess convert my answer from b to meters?