Глоссарий (анг)

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Термин на Английском	Термин на Русском	Термин на Эстонском	Термин на Финском	Значение
Nestlings	Гнездовые птенцы	Linnupoeg	Poikaset	Hatch from eggs unformed, naked, blind and helpless. They stay in the nest for a long time and depend fully on their parents.
Newly-hatched fish larvae	Личинки, предличинки	Äsja koorunud kalavastne	Vastakuoriutuneet kalanpoikaset	Very young fish larvae that still have the yolk sac and often occur close to the actual spawning and hatching grounds. Their survival is of great importance to the fish year-class strength.
Niche	Экологическая ниша	Ökoloogiline nišš	Ekolokero, ekologinen lokero	The range of environmental variables (such as temperature, salinity, and nutrients) within which a species can exist and reproduce. The preferred (or fundamental) niche is theone in which the species performs best in the absence of competition or interference fromextraneous factors.
Niche overlap	Перекрывание экологических ниш	Niššide kattumine	Ekolokerojen päällekkäisyys	An overlap in resource requirements by two species.
Nitrogen fixation	Азотфиксация	Lämmastiku sidumine/fikseerimine	Typensidonta	The conversion of gaseous nitrogen to nitrate by specialized bacteria.
Non-indigenous species	-	Võõrliik	-	See "invasive species".
Nuisance bloom	Цветение водорослей	Kahjulik veeõitseng	Haitallinen leväkukinta	A rapid increase of one or only a few species of phytoplankton, resulting in densities high enough to cause discoloration of the surface.
Nutrient cycling	Циклинг биогенов	Toitainete ringlus	Ravinteiden kierto	The processes by which elements are extracted from their mineral, aquatic, or atmospheric sources or recycled from their organic forms, converting them to the ionic form in which biotic uptake occurs and ultimately returning them to the atmosphere, water, or soil.
Nutrients	Биогены, биогенные вещества	Toitained	Ravinteet	Inorganic substances, which are bioavailable for primary producers in soluble form. Accumulation of nutrients in marine and aquatic ecosystem is considered as a reason for increase of its trophic status (seeEutrophication, Secondary pollution).
Nutrients (2)	Биогены (2)	Toitained	Ravinteet	The approximately 20 chemical elements known to be essential for the growth of living organisms, including nitrogen, sulfur, phosphorus, and carbon.