Ecological succession in Estuaries

First, I think it's important to define primary and secondary ecological succession:


Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes. 
Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. For example, after felling trees in a woodland, land clearance or a fire.

For example, in estuaries, primary succession is shown when a small plant begins to sprout on a moist rock, and the roots slowly break this rock and turn it into a more fertile area. Or, a small seed floating in the brackish area, and then landing on a small island area not to far out from the coast, and growing there on this previously uninhabited land.

For secondary succession, this could be shown by a hurricane coming i to an already fertile estuary, destroying most of the plants and animals, and then other organisms come to re-populate the already fertile area.