Why fleets repeatedly met around Dogger Bank

Did so many battles occur at Dogger Bank because of fishing, or because of navigation routes?

Both mattered, but its position on routes to several North Sea destinations repeatedly brought fleets through the same area.

Dogger Bank sits in the part of the North Sea through which forces traveling to several destinations tend to pass. Its rich fishing grounds added civilian traffic, but the strategic pattern came from intersecting sea routes. Fleets escorting commerce, raiding coasts, or moving between bases could therefore converge in the same broad area.