Northwest Region:  A Florida red tide is still present in northwest Florida, but concentrations of Karenia brevis, the Florida red tide organism, appear to have decreased at several locations. Concentrations in St. Andrew Bay (Bay County) remained low; concentrations in Apalachicola Bay (Franklin County) are lower than last week but still above background at some sites. Bloom concentrations of K. brevis were found offshore of St. Andrew Bay at the end of last week and offshore of Apalachicola Bay, Dixie County, and Levy County this week. Commercial shellfish harvesting continues to be affected. Check with the Florida Department of Agriculture and Consumer Services, Division of Aquaculture for the most up-to-date information regarding shellfish area closures. Fish kills and some respiratory irritation were reported in bay and offshore areas of Bay, Franklin, Wakulla, Dixie, and Levy counties.