TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

TROPHIC CHAIN [10 records]

Record 1 2023-06-27

English

Subject field(s)
  • Ecosystems
  • Nutritive Elements (Biological Sciences)
CONT

One significant knowledge gap necessary for assessing ecosystem-wide impacts of restoration in... estuaries is a characterization of baseline lower trophic levels. These lower tropic levels are the lowest part of the food web where organisms such as plant-like phytoplankton serve as food to animals such as zooplankton in the water column. Other organisms of lower trophic levels include plant-like microphytobenthos and marine worms living within the sediments. These organisms form an important part of the estuary ecosystem [and] provide energy at the base of the food chain [that] support the growth of larger predators at the top[, ] such as speckled trout or red fish[. These] organisms also help to break down debris, put oxygen back into sediments, and can provide a biological window into the health of an estuary.

French

Domaine(s)
  • Écosystèmes
  • Éléments nutritifs (Sciences biologiques)

Spanish

Save record 1

Record 2 2023-06-27

English

Subject field(s)
  • Ecology (General)
  • Nutritive Elements (Biological Sciences)
CONT

Trophic levels refer to a level or position in a food chain or food web. It is one of the oldest concepts in ecology that seeks to explain the energy relations between different organisms.... the bottom trophic level is known as the primary producers. These are usually plants like phytoplankton, algae, and seaweed. They can make their own food(usually photosynthesizing sugars from the sun), and do not need to consume other plants or animals. They are typically the most abundant organisms found in the ecosystem.

French

Domaine(s)
  • Écologie (Généralités)
  • Éléments nutritifs (Sciences biologiques)
CONT

Les niveaux trophiques désignent un niveau ou une position dans une chaîne alimentaire ou un réseau alimentaire. C'est l'un des plus anciens concepts de l'écologie qui cherche à expliquer les relations énergétiques entre les différents organismes. [...] le niveau trophique inférieur est connu sous le nom de producteurs primaires. Il s'agit généralement de plantes comme le phytoplancton, les algues et les algues marines. Ils peuvent fabriquer leur propre nourriture (généralement en photosynthétisant les sucres du soleil) et n'ont pas besoin de consommer d'autres plantes ou animaux. Ce sont généralement les organismes les plus abondants de l'écosystème.

Spanish

Save record 2

Record 3 2010-12-16

English

Subject field(s)
  • Ecology (General)
  • Ecosystems
  • Living Matter - General Properties
DEF

A sequence of organisms in a community each of which uses the next usually lower member of the sequence as a food source, plants being the ultimate basis of the sequence.

CONT

At the base of the cave’s food chain are bacteria that can synthesize organic molecules ... The bacteria grow along with fungi into white mats ... All other life within the cave depends on the microbial mats.

French

Domaine(s)
  • Écologie (Généralités)
  • Écosystèmes
  • Propriétés générales de la matière vivante
DEF

Séquence représentative d'une série d'espèces vivantes, dans laquelle les organismes cités en premier lieu sont mangés par ceux qui les suivent, qui seront à leur tour mangés par les suivants.

DEF

Ensemble d'organismes qui se succèdent dans l'ordre de leur consommation à partir des types photosynthétiques et chimiosynthétiques.

Spanish

Campo(s) temático(s)
  • Ecología (Generalidades)
  • Ecosistemas
  • Propiedades generales de la materia viva
DEF

Secuencia de seres vivos que producen, consumen y descomponen las sustancias alimenticias, realizándose el flujo de material y energía a través de la comunidad.

Save record 3

Record 4 2009-03-09

English

Subject field(s)
  • Environmental Studies and Analyses
CONT

Monitoring simply means repetitive measurement. In the general context of environmental impact assessment, it usually refers to the measurement of environmental variables after a development proposal has been initiated (the baseline constituting such measurement before project initiation). In the specific context of ecological investigations within impact assessment (i.e., the context of this report), our use of the term monitoring refers to repetitive measurement of specific ecological phenomena to document change primarily for the purposes of (i) testing impact hypotheses and predictions and (ii) testing mitigative measures.

CONT

... laboratory or field experiments could provide some guidance. The obvious ecological phenomenon of interest would be bioaccumulation, the application of which would involve dose-response experiments using the identified target species, or food chain studies if trophic linkages were involved. Such focussed activities would also identify the need for specific, quantitative baseline data.

French

Domaine(s)
  • Études et analyses environnementales
CONT

La surveillance est une mesure répétitive. Dans le cadre général des évaluations d'incidences environnementales, il s'agit habituellement de la mesure de variables environnementales, après le début de la réalisation d'un projet de mise en valeur (C'est l'étude des conditions de base antérieure à ce début qui sert au contrôle). Dans le cadre plus particulier des études écologiques au sein d'une évaluation des incidences (par ex., le contexte de ce rapport), le terme surveillance désigne la mesure répétée de différents phénomènes écologiques, dont les résultats servent à surveiller les changements, principalement pour (i) évaluer les hypothèses d'incidences et les prévisions, et (ii) mettre des mesures d'atténuation à l'essai.

Spanish

Campo(s) temático(s)
  • Estudios y análisis del medio ambiente
CONT

El proceso salud-enfermedad como fenómeno ecológico, en la relación huésped-parásito.

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Record 5 1997-09-05

English

Subject field(s)
  • Water Pollution

French

Domaine(s)
  • Pollution de l'eau

Spanish

Save record 5

Record 6 1990-08-07

English

Subject field(s)
  • Ecology (General)
OBS

trophic level : Step in a nutritive series, or food chain, of an ecosystem.

OBS

highest trophic level: by analogy with "lowest (trophic) level".

French

Domaine(s)
  • Écologie (Généralités)

Spanish

Save record 6

Record 7 1988-01-21

English

Subject field(s)
  • Environmental Studies and Analyses
  • Ecology (General)
CONT

... laboratory or field experiments could provide some guidance. The obvious ecological phenomenon of interest would be bioaccumulation, the application of which would involve dose-response experiments using the identified target species, or food chain studies if trophic linkage were involved. Such focussed activities would also identify the need for specific, quantitative baseline data.

French

Domaine(s)
  • Études et analyses environnementales
  • Écologie (Généralités)

Spanish

Save record 7

Record 8 1988-01-20

English

Subject field(s)
  • Environmental Studies and Analyses
  • Ecology (General)
CONT

... laboratory or field experiments could provide some guidance. The obvious ecological phenomenon of interest would be bioaccumulation, the application of which would involve dose-response experiments using the identified target species, or food chain studies if trophic linkages were involved. Such focussed activities would also identify the need for specific, quantitative baseline data.

French

Domaine(s)
  • Études et analyses environnementales
  • Écologie (Généralités)

Spanish

Save record 8

Record 9 1988-01-19

English

Subject field(s)
  • Environmental Studies and Analyses
  • Ecology (General)
CONT

... laboratory or field experiments could provide some guidance. The obvious ecological phenomenon f interest would be bioaccumulation, the application of which would involve dose-response experiments using the identified target species, or food chain studies if trophic linkages were involved. Such focussed activities would also identify the need for specific, quantitative baseline data.

French

Domaine(s)
  • Études et analyses environnementales
  • Écologie (Généralités)

Spanish

Save record 9

Record 10 1988-01-08

English

Subject field(s)
  • Environmental Studies and Analyses
  • Ecology (General)
CONT

... laboratory or field experiments could provide some guidance. The obvious ecological phenomenon of interest would be bioaccumulation, the application of which would involve dose-response experiments using the identified target species, or food chain studies if trophic linkages were involved. Such focussed activities would also identify the need for specific, quantitative baseline data.

French

Domaine(s)
  • Études et analyses environnementales
  • Écologie (Généralités)

Spanish

Save record 10

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