  The evolution of surface gravity waves is driven by nonlinear interactions
that trigger an energy cascade similarly to the one observed in hydrodynamic
turbulence. This process, known as wave turbulence, has been found to display
anomalous scaling with deviation from classical turbulent predictions due to
the emergence of coherent and intermittent structures on the water surface. In
realistic oceanic sea states, waves are spread over a wide range of directions,
with a consequent attenuation of the nonlinear properties. A laboratory
experiment in a large wave facility is presented to discuss the effect of wave
directionality on wave turbulence. Results show that the occurrence of coherent
and intermitted structures become less likely with the broadening of the wave
directional spreading. There is no evidence, however, that intermittency
completely vanishes.
