ARE “GREEN TIDES” HARMFUL ALGAL BLOOMS? TOXIC PROPERTIES OF WATER‐SOLUBLE EXTRACTS FROM TWO BLOOM‐FORMING MACROALGAE, ULVA FENESTRATA AND ULVARIA OBSCURA (ULVOPHYCEAE)

@article{Nelson2003ARET,
  title={ARE “GREEN TIDES” HARMFUL ALGAL BLOOMS? TOXIC PROPERTIES OF WATER‐SOLUBLE EXTRACTS FROM TWO BLOOM‐FORMING MACROALGAE, ULVA FENESTRATA AND ULVARIA OBSCURA (ULVOPHYCEAE)},
  author={Timothy A. Nelson and Dejah J. Lee and Bridget C. Smith},
  journal={Journal of Phycology},
  year={2003},
  volume={39}
}
Toxic properties are more often associated with microalgal blooms than with macroalgal blooms, although herbivore deterrents are well known in macroalgae, and inhibition of invertebrate larval development by extracts from Ulva spp. has been suggested. This study was prompted from our observation that substantial discoloration of seawater occurred in small bays after mass desiccation‐induced mortality of Ulvaria obscura (Kützing) Gayral. We examined the effects of extracts from Ulva fenestrata… 

Bloom-forming macroalgae ( Ulva spp . ) inhibit the growth of co-occurring macroalgae 1 and decrease eastern oyster larval survival 2 3 4

1 Macroalgal blooms have increased in frequency worldwide due to anthropogenic 2 activities. Algal blooms can disrupt recreational activities, interfere with fisheries, and 3 deplete oxygen during

Bloom-forming macroalgae (Ulva spp.) inhibit the growth of co-occurring macroalgae and decrease eastern oyster larval survival

1 Macroalgal blooms have increased in frequency worldwide due to anthropogenic 2 activities. Algal blooms can disrupt recreational activities, interfere with fisheries, and 3 deplete oxygen during

Exudates of the green alga Ulvaria obscura (Kützing) affect larval development of the sand dollar Dendraster excentricus (Eschscholtz) and the Pacific oyster Crassostrea gigas (Thunberg)

Results indicate that compounds released by U. obscura affect development differently between invertebrate species and among developmental stages, as well as changes in structure and metabolic activity at different life history stages.

Exudates of the green alga Ulvaria obscura (Kützing) affect larval development of the sand dollar Dendraster excentricus (Eschscholtz) and the Pacific oyster Crassostrea gigas (Thunberg)

Results indicate that compounds released by U. obscura affect development differently between invertebrate species and among developmental stages, as well as changes in structure and metabolic activity at different life history stages.

Differential toxic effects of Ulva lactuca (Chlorophyta) on the herbivorous gastropods, Littorina littorea and L. obtusata (Mollusca)

It is concluded that the water‐soluble, toxic exudate produced by U. lactuca in response to herbivory had allelochemical properties, and may contain a cleavage product (acrylic acid) of dimethylsulfoniopropionate or reactive oxygen species (i.e., H2O2).
...

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