Unprecedented toxic algal blooms impact on Tasmanian seafood industry
Gustaaf Hallegraeff A and Christopher Bolch BA Institute for Marine and Antarctic Studies
University of Tasmania
Private Bag 129
Hobart, Tas. 7001, Australia
Tel: +61 3 6226 2623
Email: Hallegraeff@utas.edu.au
B Institute for Marine and Antarctic Studies
University of Tasmania
Locked Bag 1370
Launceston, Tas. 7250, Australia
Tel: +61 3 6324 3815
Email: chris.bolch@utas.edu.au
Microbiology Australia 37(3) 143-144 https://doi.org/10.1071/MA16049
Published: 10 August 2016
Abstract
While most microscopic algae provide food for filter-feeding shellfish and larvae of crustaceans and finfish, other so-called Harmful Algal Blooms (HABs) can have negative effects, causing severe economic losses to aquaculture, fisheries and tourism. Of greatest concern to human society are blooms of toxic HAB species that cause illness and death of fish, seabirds and mammals via toxins transferred through the food web. Unprecedented Alexandrium (Dinophyceae) blooms along the East Coast of Tasmania in 2012 and 2015, a previously low biotoxin risk area, led to major impacts on the local oyster, mussel, scallop and rock lobster industries. Four human hospitalisations also occurred from eating wild shellfish.
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