Trots (in Kyle's post, above) are lines of mooring buoys laid in a river or harbour so that boats can moor head and stern. This stops the boats swinging with the tide, so they take up less space & the impecunious harbourmaster (or highly pecunious & greedy harbour authority) can pack more in.

What you might do in a glass-fibre hull is scull, or 'row' with two oars - or with just one, over the stern (rather than skull, which is part of a sceleton).

:-)

Steve