1. 1
  2. Environment and habitat

Environment and habitat

Dam removal

Updated on 27/07/2020
Définition
Sens commun

Action de démanteler et détruire un obstacle à la continuité écologique (biologique et sédimentaire) d’un cours d’eau. Par exemple un seuil ou un barrage, édifié sur les cours d’eau.

Source
d'après Jura Natura Services

Invasive Alien Species

Updated on 01/12/2020
Définition
Sens commun

A species that is indigenous or non-native to a given territory, proliferates and extends its range due to an increase in population density.

Source
according to MNHN

Electric fishing

Updated on 04/12/2018
Définition
Sens commun

Method used to evaluate the abundance of fish species in a portion of a stream and to precise the different populations. It consists in the creation of an electric current which attracts fish. Then, paralyzed by electricity, they rise to the surface, which helps their identification and counts. After a little while, fish are free to circulate in the stream again.

Source
According to Wikipedia et Val-de-Meurthe municipality communities

Nature reserve

Updated on 04/12/2018
Définition
Sens technique
Pursuant to Act No. 76-629 of 10 July 1976 (art. L.242-1 and following articles of the Rural Code), nature reserves are classified areas when conservation of fauna, flora, soil, water, mineral deposits and excavations and, in general, of…
Source
According to Poitou-Charentes Regional Council

Slikken/Tidal flat

Updated on 04/12/2018
Définition
Sens technique
Part of the coastal ecosystems located in the intertidal zone and consists of mudflats uncovered at low tide.
Source
according to the Encyclopaedic Dictionary of Biodiversity and Nature Conservation of 2017 and IOWater

Circalittoral zone

Updated on 04/12/2018
Définition
Sens technique
Space between the limit of the infralittoral zone (lower limit of life for the majority of multicellular algae) and the depth at which photosynthesis becomes impossible due to the too low amount of light. The depth of the circalittoral zone, generally a hundred meters, depends on the more or less transparency of water. The plant species that develop there are the algae most tolerant to minimum amount of light, known as sciaphilous plants. The circalittoral zone has a low environmental variability, and its temperature varies little between seasons.
Source
according to the Encyclopaedic Dictionary of Biodiversity and Nature Conservation of 2017

Continental slope

Updated on 04/12/2018
Définition
Sens commun
High elevation zone that leads from the edge of the continental shelf to the abyssal plain.
Source
according to IFREMER

Pelagic zone

Updated on 27/02/2019
Définition
Sens commun

Part of slow-flowing aquatic environments, where the bottom is too deep to allow plants to grow.

Source
d'après OIEau

Coastal zone

Updated on 26/10/2022
Définition
Sens commun
Part of slow-flowing aquatic environments that extend from the shore to the limit of light penetration.
Source
according to OFB

Resilience

Updated on 04/12/2018
Définition
Sens commun
The ability of an ecosystem to withstand and survive alterations or disturbances affecting its structure or functioning, and eventually find a new balance.
Source
according to CELF