Only one of the six-person crew - 43-year-old Abdul Mohammed – is confirmed to have survived. The bodies of Kevin Kershaw (21) and Attia Shaban (26) were recovered last week, while the remains of Wael Mohammed (35) were found by civilian divers near the wreck site last Sunday.
Coastguard manager Declan Geoghegan said that search teams now have the 48 divers required to conduct an exhaustive search of the wreck area and urged further volunteers not to travel for the moment.
The search will concentrate on the waters between Adam's Rock and Long Point, where much of the debris from the trawler has washed up.
RTÉ News reports that more than 200 volunteers are assisting the coastal search by boat and on land, which is being co-ordinated from the village of Union Hall.