Navman 6500 chart plotter, can you tell me what these numbers are please?

[blackrandomapple]

Newbie question... Im learning!

See pic below!

can someone tell me what the underlined numbers represent..? Depth?

 

[omega2]

Depths (spot soundings) you should be able to turn them off

 

[blackrandomapple]

Depths (spot soundings) you should be able to turn them off

Much of thanks... thouggt they were but wasn't 100% sure.