@Benanything - Thanks man. As a rower I generally keep my gym/strength work heavy and intense, hence the low reps and giant sets. I focus on building as much power without hypertrophy or weight gain as I can, whilst improving my ability to apply power even when tired and physically fatigued.
Dragonboat is quite a different sport, in that it is more upper body focused than traditional rowing, but I think the same principles would apply, just maybe more focus on the lats and arms. In terms of conditioning I try and keep as sport specific as possible (hence the volume of work on the water or on the Concept 2 erg) with occasional cycling session as crosstraining.
Hope that helps.