Continental slope
Définition
Sens commun
High elevation zone that leads from the edge of the continental shelf to the abyssal plain.
Source
according to IFREMER
Environment and habitat
Pelagic zone
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
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
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
Valley
Définition
Sens commun
Elongated and more or less flared depression dug by a stream or a glacier.
Source
according to the Larousse dictionary
Schorre/Salt marsh
Définition
Sens commun
Upper part of a coastal marsh, consisting of solid mud, covered with grass and submerged at high tides.
Source
according to the Robert dictionary
Sens technique
Coastal area corresponding to the upper part of the midlittoral zone and the lower part of the infralittoral zone. The schorre is generally a marsh and colonised by halophytic plants. It is covered only at high tides.
Source
according to the Encyclopaedic Dictionary of Biodiversity and Nature Conservation of 2017
Ballast water
Définition
Sens commun
Water contained in large tanks that can correct the trim of the boat and its balance. Ballast water is a problem during the emptying of the tank (deballasting) because species living in one part of the world are released into another zone, creating ecological disturbances. With the growth of international trade, and especially transoceanic maritime transport, problems arise because of this contribution of living organisms foreign to the local environment. Now, biological and chemical treatment systems must treat these volumes of water to limit the exchange of invasive species.
Source
according to ASTEE
Special area of conservation
Définition
Sens commun
Marine and terrestrial sites that include natural habitats or species of wild fauna and flora considered to be of Community interest, and whose rarity, vulnerability or specificity justify the implementation of conservation measures, in accordance with the European Habitats Directive.
Source
according to European Commission and IOWater
Sens réglementaire
According to European Directive 92/43/EEC,'a site of Community importance designated by the Member States by a regulatory, administrative and/or contractual act in which the conservation measures necessary to maintain or restore, in a favourable conservation status, the natural habitats and/or populations of the species for which the site is designated are applied'.
Source
According to European Commission
Site of community importance (SCI)
Définition
Sens technique
On the basis of proposals from Member States, sites of community importance are selected by the European Commission to integrate the Natura 2000 network, under the habitats, fauna and flora directive. The list of names of those sites is adopted by the European Commission for each biogeographical region. These sites are then designated special areas of conservation by ministerial decree.
Source
According to MNHN
Document of objectives
Définition
Sens technique
Reference document, guidance and decision support for each Natura 2000 site based on a consensus-building process, the document of objectives (DOCOB) sets the appropriate management measures to be implemented to preserve or restore the species and habitats that have justified the site designation under Natura 2000.
Source
According to Syndicat Mixte du bassin versant de la Nive