The toxin’s of Texas brown tide organism Aureoumbra lagunensis, and its impacts on shellfish

2012-2014 - $166,045

Paul Zimba
TAMUCC, Center for Coastal Studies

Abstract

Harmful algal blooms can cause reductions in shellfish and finfish directly through toxins, or indirectly by altering food availability.  A recently discovered harmful algae, A. lagunensis,  blooms annually in portions of the Laguna Madre, Texas producing brown tides.  Toxin production is suspected in this species. This research will identify the toxin(s) produced by this alga, and assess sublethal impacts to three important shellfish that are major food resources for commercially important fish (black drum and sea trout).