Citation Hunt

Leaderboard

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Challenger expedition:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

The crew used a variety of dredges and trawls to collect biological samples. The dredges consisted of metal nets attached to a wooden plank and dragged across the sea floor. Mop heads attached to the wooden plank would sweep across the sea floor and release organisms from the ocean bottom to be caught in the nets. Trawls were large metal nets towed behind the ship to collect organisms at different depths of water.[5] Upon the retrieval of a dredge or trawl, Challenger crew would sort, rinse, and store the specimens for examination upon return. The specimens were often preserved in either brine or alcohol.[citation needed][6] Manganese nodules and sediment, which was later found to contain micrometeorites, was collected from the ocean floor.[7]