Property:Definition

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This is a property of type Text. It links to pages that use the form MstConcept.

Showing 20 pages using this property.
N
Remaining within the same area (from Lincoln ''et al.'',1998).  +
Incapable of self-fertilization, due to physical or temporal separation of gametes, and/or self-incompatability genes  +
component that keeps the agglutinated particles of the non-massive skeleton together.  +
small and individual structural elements that function as supporting structure/enclosure, e.g. spicules in sponges.  +
Independent without a defined territory  +
Non-feeding life stages (e.g. lecithotroph)  +
Species that has not demonstrated any invasive traits in its introduced range.  +
A taxon is Not Evaluated when it has not yet been evaluated against the criteria.  +
O
The common indicators agreed by OSPAR for assessing the status of biodiversity in the North-East Atlantic cover marine mammals, seabirds, fish communities, seafloor habitats, pelagic habitats, non-indigenous species and food webs. The biodiversity common indicators contributed assessments of the status biodiversity in the North-East Atlantic to the OSPAR Intermediate Assessment 2017. The assessments are published in the OSPAR Assessment Portal. The indicators are based on information from monitoring programmes described in the Coordinated Environment Monitoring Programme (CEMP). The programmes are described in the Appendices to the CEMP Agreement. Detailed descriptions, including method descriptions for the indicator calculations, are included in the CEMP Guideline Agreements.  +
The OSPAR Biological Diversity and Ecosystems Strategy sets out that the OSPAR Commission will assess which species and habitats need to be protected. This OSPAR List of Threatened and/or Declining Species and Habitats has been developed to fulfil this commitment. It is based upon nominations by Contracting Parties and observers to the Commission of species and habitats that they consider to be priorities for protection.  +
Region I is the most northerly OSPAR region, characterised by its harsh climate and ice coverage although the ecosystems of this region are still rich. In spite of its low population density, human activities such as fishing and offshore petroleum production remain significant.  +
The Greater North Sea is one of the busiest maritime areas. Offshore activities related to the exploitation of oil and gas reserves, and maritime traffic are very important. Two of the world's largest ports are situated on the North Sea coast, and the coastal zone is used intensively for recreation.  +
The Celtic Seas region contains wide variations in coastal topography, from fjordic sea lochs, to sand dunes, bays, estuaries and numerous sandy beaches. The large range of habitats in the region supports a diverse fish fauna. Although traditional maritime activities, such as fishing, take place in the Celtic Seas, there is ongoing development of tourism.  +
The bottom topography of Region IV and coastlines are highly diversified, including the continental shelf and slope and parts of the abyssal plain. Ecosystems in Region IV are very rich, support a rich fish fauna and have a particular importance for migratory birds. Main human activities in Region IV are fishing, maritime transport and tourism.  +
Region V represents the deep waters of the North-East Atlantic extending across the abyssal plain and the Mid-Atlantic Ridge, and including many seamounts. There have been recent discoveries of a number of different fragile deep-sea habitats (such as hydrothermal vents, carbonate mounds, coral gardens and sponge communities). Human population in the region is restricted to the Azores Archipelago. The main human activities are fishing and maritime transport.  +
Terms used to describe 'Occurrence' of species.  +
Species which may be listed as alien or introduced but whose occurrence has not been specified.  +
Open waters beyond the continental shelf.  +
Species that are demonstrating aggressive spread and there is concern about its spread OR species where some concern has been recorded- this may be due to known records of its invasiveness and impacts in other areas of their known introduced range.  +
Seabed beyond three miles (5 km) from the shore.  +