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Ulvaria obscura is a common marine algae, typically identified in algal blooms referred to as "Green Tides". [3] [4] The species is distinct in its ability to produce the neurotransmitter dopamine as a herbivore defense mechanism.
The green tides caused by the overgrowth of Ulva prolifera in the Yellow Sea of China have been occurring every summer since 2007. The green tide is a major environmental concern that involves the impacts from natural, anthropogenic, physicochemical and algae factors along with the warming of local water.
Composite image illustrating the diversity of Ulvophyceae. Top left: Ulva.Top right: Caulerpa.Bottom left: Bornetella.Bottom right: Dictyosphaeria. The Ulvophyceae or ulvophytes are a class of green algae, [1] distinguished mainly on the basis of ultrastructural morphology, life cycle and molecular phylogenetic data. [2]
Ulva species have been reported as a dominant species leading to blooms of green macroalgae often referred to as “green tides.” These green tides and marine fouling are attributed to their thallus morphological characteristics, fast growth rates in eutrophic ecosystems, and rapid uptake and assimilation of nutrients. [8]
The Ulvophyceae or ulvophytes are a class of green algae, [3] distinguished mainly on the basis of ultrastructural morphology, life cycle and molecular phylogenetic data. [4] The sea lettuce, Ulva, belongs here. Other well-known members include Caulerpa, Codium, Acetabularia, Cladophora, Trentepohlia and Monostroma.
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Green tide, a phenomenon of excessive green algae in a certain area, is mainly caused by Ulva spp. [22] In Jeju Island and its coastal areas of South Korea, Ulva australis, a specie of Ulva spp., has caused serious ecological and marine pollution. Therefore, it is imminent to resolve the issue.
A new study in the journal Frontiers in Toxicology found that microplastics in the fish we consume are far more widespread than you may think.. In late December, researchers from Portland State ...