Complex sentence: This species is capable of forming large surface blooms that occur when wind stresses are low and "Trichodesmium thiebautii" is able to accumulate, undisturbed, on the surface of the water.
Split into simpler sentences: This species is capable of forming large surface blooms. These blooms occur when wind stresses are low and "Trichodesmium thiebautii" is able to accumulate, undisturbed, on the surface of the water.