Trophic level definition

Trophic level means a functional classification of taxa within a community that is based on feeding relationships, for example, aquatic green plants comprise the first trophic level and herbivores comprise the second.
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Trophic level means a functional classification of taxa within a community that is based on feeding relationships. For example, aquatic green plants and herbivores comprise the first and second trophic levels in a food chain.
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Trophic level or "TL" means the food web level in an ecosystem that is occupied by an organism or group of organisms because of what they eat and how they are related to the rest of the food web. For example, trophic level 3 in an aquatic ecosystem consists of small fish such as bluegills, crappies, and smelt and trophic level 4 consists of larger carnivorous fish such as walleye, northern pike, and most trout species.
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Examples of Trophic level in a sentence

  • Trophic level transfer of microplastic: Mytilus edulis (L.) to Carcinus maenas (L.).

  • Drucker, Trophic level isotopic enrichment of carbon and nitrogen in bone collagen: Case studies from recent and ancient terrestrial ecosystems.

  • Mike Fields will also serve as a committee member for a year as he steps down as chair.

  • Trophic level describes the position of a species within the food web.

  • Trophic level 3 (T3) and 4 (T4) fish were considered in this analysis.

  • The baseline fish tissue concentrations as reported for Trophic level 4 fish in Wabigoon Lake as measured in the baseline study (DST 2014b for walleye) were used to assess the incremental tissue concentration for mercury.

  • Trophic level 3 fish are those that consume invertebrates and plankton.

  • Trophic level 3 and 4 fish sample sets will include a range of fish sizes between 150 and 500 mm total length.

  • Trophic level breakouts for the general population are: TL2= 0.0038 kg fish/day; TL3 = 0.0080 kg fish/day; and TL4 = 0.0057 kg fish/day.

  • Trophic level asynchrony in rates of phenological change for marine, freshwater and terrestrial environments.


More Definitions of Trophic level

Trophic level means a functional classification of taxa within a community that is based on feeding relationships (e.g., aquatic plants comprise the first trophic level, herbivores com- prise the second, small fish comprise the third, predatory fish the fourth, etc.).
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Trophic level means a functional classification of taxa within a community that is based on feeding relationships, for
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Trophic level means a functional classification of taxa within a community that is based on feeding relationships, for example, aquatic green plants com- prise the first trophic level and herbivores comprise the second.
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Trophic level means an ecological term that describes the relative position of a species in the food chain,
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Trophic level means the level or particular place in a food web and occupied by species with similar feeding behaviors. Trophic level 1 is occupied by primary producers (i.e., plants) while trophic level 4 represents carnivores or apex predators;
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Related to Trophic level

  • RBC level means an insurer's company action level RBC, regulatory action level RBC, authorized control level RBC, or mandatory control level RBC where:

  • Barrier Level means the Barrier Level as specified in § 1 of the Product and Underlying Data.

  • Base Level means the following amounts plus the percentage

  • Performance Level means a reference to one of Performance Level I, Performance Level II, Performance Level III, Performance Level IV or Performance Level V.

  • Mean Sea Level means the average height of the sea for all stages of the tide. It is used as a reference for establishing various elevations within the floodplain. For the purposes of this Ordinance, the term is synonymous with the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, to which Base Flood Elevations shown on a community's Flood Insurance Rate Map are referenced.

  • Use Level means the license use meter or model (which may include operating system, hardware system, application or machine tier limitations, if applicable) by which Symantec measures, prices and licenses the right to use the Licensed Software, in effect at the time an order is placed for such Licensed Software, as indicated in this License Agreement and the applicable License Instrument.

  • Maximum contaminant level goal or “MCLG” means the maximum level of a contaminant in drinking water at which no known or anticipated adverse effect on the health of persons would occur, and which allows an adequate margin of safety. MCLGs are nonenforceable health goals.

  • Index Level means, in respect of any day and subject to Adjustment Provisions: (a) in respect of an Index(other than a Multiple Exchange Index), the closing level of such Indexat the Valuation Time on such day; and (b) in respect of an Index that is a Multiple Exchange Index, the official closing level of the Index on such day at the Valuation Time as calculated and published by the Index Sponsor each as rounded up to four decimal places (with 0.00005 being rounded up), allas determined by the Calculation Agent.

  • Working level (WL) means any combination of short-lived radon daughters in 1 liter of air that will result in the ultimate emission of 1.3E+5 MeV of potential alpha particle energy. The short-lived radon daughters are—for radon-222: polonium-218, lead-214, bismuth-214, and polonium-214; and for radon-220: polonium-216, lead-212, bismuth-212, and polonium-212.

  • Share Level means the level of the Share as determined by the Determination Agent by reference to the level of the Share published by the Exchange.

  • Strike Level means the Strike Level as specified in § 1 of the Product and Underlying Data.

  • Digital Signal Level means one of several transmission rates in the time-division multiplex hierarchy.

  • Performance Measurement Period has the meaning set forth in Section 3.1(e)(ii).

  • Sound level meter means an instrument which includes a microphone, amplifier, RMS detector, integrator or time averager, output meter, and weighting networks used to measure sound pressure levels.

  • Digital Signal Level 3 (DS-3 means the 44.736 Mbps third level signal in the time division multiplex hierarchy.

  • Digital Signal Level 0 (DS-0 means the lowest-level signal in the time division multiplex digital hierarchy, and represents a voice-grade channel operating at either the 56 Kbps or 64 Kbps transmission bit rates. There are twenty-four (24) DS-0 channels in a DS-1.

  • Digital Signal Level 0 or "DS0" means the 64 Kbps zero-level signal in the time-division multiplex hierarchy.

  • Severity Level means the actual impact of a Defect on a user’s operational environment as further described in the table below.