HABs note details

Harmful effect
Aureococcus has been the source of mass mortality of bay scallops (Argyropecten irradians) and clams (Mercenaria mercenaria) in New York State and has been reported from as far south as the coasts of Maryland and Virginia, in addition to Saldanha Bay, South Africa and Bohai Sea, China. A toxin has never been identified, but the presence of the algae in the water deters feeding by stimulating contractions of branchial muscles of the effected bivalves and interfering with ciliary beating. Both toxic and non-toxic strains are known (further details in Gobler & Sunda 2012)
Gobler, C.J. & Sunda, W.G. (2012). Ecosystem disruptive algal blooms of the brown tide species, <i>Aureococcus anophagefferens</i> and <i>Aureoumbra lagunensis</i>. <em>Harmful Algae 14: 36-45.</em>  

Zhang, Q.C., Qiu, L.-M., Yu, R.C., Kong, F.Z., Wang, Y.F., Yan, T., Gobler, C.J. & Zhou, M.J. (2012). Emergence of brown tides caused by <i>Aureococcus anophagefferens</i> Hargraves and Sieburth in China. <em>Harmful Algae 19, 117-124.</em>  
2017-04-26 09:43:20Z