Suchergebnisse

This report describes the current distribution of NNS in marinas on the coast of S England, comparing it to data from previous surveys from 2009/10. The data is of relevance to monitoring and pathway management obligations under the Marine Strategy Framework Directive (MSDF) and to assessing the feasibility of granting exemptions under the Ballast Water Management Convention. The information will be of value to government departments, non-departmental public bodies, environmental charities and other organizations concerned with environmental policy and management of NNS.

This report describes the current distribution of NNS in marinas on the coast of S England, comparing it to data from previous surveys from 2009/10. The data is of relevance to monitoring and pathway management obligations under the Marine Strategy Framework Directive (MSDF) and to assessing the feasibility of granting exemptions under the Ballast Water Management Convention. The information will be of value to government departments, non-departmental public bodies, environmental charities and other organizations concerned with environmental policy and management of NNS.

This report describes the current distribution of NNS in marinas on the East Anglian and western coasts of England, comparing it to data from previous surveys from 2009/10 and to data from other areas of the UK. It supplements the report from the RAS 2014 project which surveyed the south coast. The data is of relevance to monitoring and pathway management obligations under the Marine Strategy Framework Directive (MSDF); will contribute to the annual compilation of Indicator B6 (Pressure from Invasive Species) of the UK Biodiversity Indicators published by Defra; and to assessing the feasibility of granting exemptions under the Ballast Water Management Convention. The information will be of value to government departments, non-departmental public bodies, environmental charities and other organizations concerned with environmental policy and the management of NNS.

© Crown Copyright 2018. This is a fully open access article distributed under an Open Government Licence (OGL) http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ which is compatible with CC-BY (Creative Commons Attribution Licence). The attached file is the published pdf version.

The European Union (EU) has recently published its first list of invasive alien species (IAS) of EU concern to which current legislation must apply. The list comprises species known to pose great threats to biodiversity and needs to be maintained and updated. Horizon scanning is seen as critical to identify the most threatening potential IAS that do not yet occur in Europe to be subsequently risk assessed for future listing. Accordingly, we present a systematic consensus horizon scanning procedure to derive a ranked list of potential IAS likely to arrive, establish, spread and have an impact on biodiversity in the region over the next decade. The approach is unique in the continental scale examined, the breadth of taxonomic groups and environments considered, and the methods and data sources used. International experts were brought together to address five broad thematic groups of potential IAS. For each thematic group the experts first independently assembled lists of potential IAS not yet established in the EU but potentially threatening biodiversity if introduced. Experts were asked to score the species within their thematic group for their separate likelihoods of i) arrival, ii) establishment, iii) spread, and iv) magnitude of the potential negative impact on biodiversity within the EU. Experts then convened for a 2‐day workshop applying consensus methods to compile a ranked list of potential IAS. From an initial working list of 329 species, a list of 66 species not yet established in the EU that were considered to be very high (8 species), high (40 species) or medium (18 species) risk species was derived. Here, we present these species highlighting the potential negative impacts and the most likely biogeographic regions to be affected by these potential IAS.