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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.
The sea lettuces comprise the genus Ulva, a group of edible green algae that is widely distributed along the coasts of the world's oceans. The type species within the genus Ulva is Ulva lactuca , lactuca being Latin for "lettuce".
Masanori Hiraoka, Satoshi Shimada; Masako Uenosono; Michio Masuda (2003). "new green-tide-forming alga, Ulva ohnoi Hiraoka et Shimada sp. nov. (Ulvales, Ulvophyceae) from Japan". Kochi Prefectural Deep Seawater Laboratory, Center for Advanced Science and Technology, Department of Fisheries, Faculty of Agriculture, Division of Biological ...
Although most contemporary ulvophytes are marine macroalgae , ancestral ulvophytes may have been freshwater, unicellular green algae. Molecular phylogenetic evidence suggests that macroscopic growth was achieved independently in the various major lineages of Ulvophyceae ( Ulvales - Ulotrichales , Trentepohliales , Cladophorales , Bryopsidales ...
English: A schematic of the water surface level changes with the tides. Average low water spring or average low water neap tide; used as a reference, which one is used depends on whether LWN or LWS is lowest. The schematic was hand drawn based on an image from the book "Leidraad voor het Stuurbrevet" by Richard Vooren, Paul Van den Keybus.
Tide tables, sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. [1] Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a published tidal ...
Ulva flexuosa now generally referred to as Enteromorpha flexuosa (Wulfen ex Roth) J. Agardh). [ 1 ] [ 2 ] is a species of seaweed in Ulvaceae family that can be found worldwide. Description