The operator left the sea way marina on 08/2/13 in vessel 1 (la-3872-aw) at approximately 1:30 p.m.to go fishing in the "pen"  . The operator entered the pen from the barataria waterway and proceeded approximately east by northeast. The operator observed building storm clouds and wind from the north and decided to head towards bayou dupont . As the subject reduced throttle to neutral to turn(southwest), the operator noticed the wake and/or a large wave wash over the stern and transom of the vessel. Vessel 1 filled with water quickly and became partially submerged in approximately six foot deep water.  The operator was wearing a type ii pfd the operator stayed with vessel 1 as it floated southward until it collided with the rock/concrete shoreline protection barrier that was constructed on the south side of the pen. The operator spent the night in the marsh. He was picked up by 2 ldwf biologists working in the area at approximately 900 a.m. on 08/23/13. The vessel was towed in by the biologists as well. The operator met with the ldwf agents at the launch to complete the operators report. In the opinion of the investigator the primary contributing factor of this incident was operator inexperience. The secondary contributing factor was force of wake/wave.  The tertiary contributing factor was the weather creating choppy waters.  Alcohol does not appear to have been involved in this incident in any way.  The operator was wearing a type ii uscg approved pfd during the incident.
LAFITTE