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Trophic level
| Fisheries glossary |
- The position that a species occupies in a food chain. the species it eats are at a lower trophic level, and the species that eats it are at a higher trophic level.
- (gk. trophos, feeder) a step in the movement of energy through an ecosystem, represented by a particular set of organisms (see biomass). 10 10
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Level, английский
- Niveau
- Perfectly horizontal
- True horizontal. also a tool used to determine level.
- When relating to a video signal it refers to the video level in volts. in cctv optics, it refers
- Уровень
- When relating to a video signal it refers to the video level in volts. in cctv optics, it refers to the auto iris level setting of the electronics that processes the video signal in order to open or close the iris.
- N уровень basis ~ когн. базисный уровень категориза- ции2 language ~ языковой уровень interaction of ~ ~s взаимодействие языко- вых уровней logical ~ псхл. логический уровень ~ of language языковой уровень pragmatic ~ прагматический уровень: ~ ~ of equivalence эквивалентности situational ~ ситуационный уровень: ~ ~ of equivalence эквивалентности
- A ровный stress, tone levelling n выравнивание lexeme n лексема lexemic a лексемный category 1 одна из базовых операций компьютерной обработки текстов: по за- данным тексту, словарю и множеству правил порождается текст, даю- щий исходную форму для всякой словоформы текста. 2 уровень, на котором в качестве категорий выступают не фундамен- тальные и самые “высокие” в иерархии объединения, но объ- единения, в которых сконцентрированы максимально релевантные для обыденного сознания свойства.
- 2 cache кэш второго уровня; внешний кэш; l2-кэш
- An instrument for establishing a horizontal line or plane.
- The act or process of adjusting something with reference to a horizontal line.
- Horizontal passages, drifts, or other underground workplaces the floors of which are approximately on the same horizontal plane.
- The degree of strength of an audio signal measured as power, voltage, or sound pressure level.
- Synonym for adit (in northern england).
Level, английский
Level, английский
Level, английский
Level, английский
Level (noael), английский
Level - indicating tube, английский
Level 1 product general system, английский
Level 10, английский
Level 2 exceedance, английский
A track defect
Level alarm, английский
Степень боевой готовности
Level alarm high-high, английский
Сигнал высокого высокого уровня (чего-либо)
Level alarm low-low, английский
Сигнал низкого низкого уровня (чего-либо)
Level amplifier, английский
Усилитель уровня напряжения
Level annuity system, английский
A plan that pays interest and principal in such a way that the total is same for each payment. the earliest payments are mostly interest and the later ones are mostly principal.
Level attachment, английский
Level axis, английский
Level base (sleeper plate), английский
A level or horizontal rail base seat.
Level basin, английский
Безуклонный чек /обычно большой площади/
Level bite, английский
Клещеобразный, прямой прикус
Level border, английский
Безуклонная поливная полоса
Particular, английский
A частный; конкретный grammar partitioned a разделённый на части sequence 1 одна из базовых операций компьютерной обработки текстов; в каче- стве данных берутся текст либо сегмент текста, грамматика и цель разбора, а на выходе получается удовлетворяющее цели множество значений категориальной отнесённости сегментов в виде, например, дерева разбора. 2 применяется запоминание также и гипотез, выдвигаемых при разбо- ре, и результатов их проверки – м. кэй. 3 используется, в частности, для разбора арифметических выражений. partitioning n членение sentence ~ членение предложений (напр., при переводе )
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Upwelling, английский
- The process by which water, usually cold and nutrient-rich, rises from a deeper to a shallower depth. this is often a result of offshore surface water flow, particularly when persistent wind blows parallel to a coastland and the resultant ekman transport
- The oceans are layered; with sunwarmed water on top, and colder water containing 343 upwelling nutrients and dissolved gases below. upwelling is a phenomenon that brings this deeper water to the surface. when nutrients rise towards the sunlight, microscopic plants (phytoplankton) combine them with carbon dioxide and solar energy by photosynthesis. the organic compounds thus produced form the basis of the oceanic food chain. oceanographers have identified many different forms of this phenomenon, the more significant of which are: • coastal upwelling: coriolis effect causes winddriven currents to move to the right of winds in the northern hemisphere. thus winds blowing south along an eastern land-ocean boundary, or north along a western one, drive surface water away from the coast, allowing cold, nutrient-rich deep water to rise and replace it. in the southern hemisphere, these directions are reversed. some of the world’s most productive fishing grounds are in regions where coastal upwelling occurs. • equatorial upwelling: a related phenomenon. the equatorial surface current flows from east to west in both the atlantic and pacific basins. coriolis force turns the flow away from the equator (north to the right, south to the left) once again clearing a path for colder water to rise from the depths. as phytoplankton feast on the rising nutrients they bloom, causing the water to become green and murky—to the extent that space travelers can visually locate the pacific equatorial region by a line of high phytoplankton concentration. • dynamic uplift: occurs in response to variations in coastal ocean currents and is independent of coastal wind conditions. • tidal pumping: strong tidal currents produce upwelling through amplification and associated topographic turbulence. during flood tide, oceanic water mixes with and transfers part of its nutrient load to the shelf water before being removed again during ebb tide. each flood tide brings another load of nutrients, and the resulting enrichment can be substantial. marine life on the great barrier reef benefits greatly from tidal pumping, as do similar geographical settings where tidal currents are amplified in channels between islands. • eddy formation:western boundary currents spawn several eddies per year, each of which maintains its identity for two years or longer. warm core eddies are characterized by a deep thermocline in the centre and shallow thermocline around the eddy fringe. as they impinge on the continental slope, the thermocline is lifted up, having the same effect as when the main current impinges on the shelf.
- The raising of benthic nutrients to the surface waters. this occurs in regions where the flow of water brings currents of differing temperatures together, and increases productivity of the ecosystem.
- A rising of nutrient-rich water toward the sea surface.
Bathypelagic, английский
- The open ocean or pelagic zone that extends from a depth of 1000 to 4000 meters below the ocean surface.
- The region of the ocean that extends from 1,000-4,000 meters below the ocean surface.
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