Ключевые слова: alga, algae, aquaculture, benthic, biology, blanket, botanical, botany, cell, close, closeup, color, copy, creek, desmid, desmidiacea, draparnaldia, filamentous, flora, focus, food, freshwater, green, healthcare, hobby, lake, life, macro, medicine, microorganism, microscope, microscopic, nature, nobody, organism, phytoplankton, plant, pond, research, river, school, science, scientific, scum, small, spirogyra, spore, university, water, wildlife,