A tournament to hunt down the invasive lionfish species is to be held on August 28.The contest was to be held last week but was postponed due to bad weather.The tournament starts at sunrise, with all lionfish to be presented for weighing at the Bermuda Institute of Ocean Sciences (BIOS) by 3pm.Music, food and drinks including samples of the catch of the day start at BIOS at 2.30pm.To register for the Groundswell Lionfish Tournament, go to www.reefspect.com.