Trends in aquaculture production, and newly introduced cultured and associated species in European Seas.

Indicator Fact Sheet (Deprecated)
Indicator codes: WEC 07b
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This content has been archived on 03 Mar 2015, reason: Other (New version data-and-maps/indicators/aquaculture-production-3/assessment was published)

Assessment made on  01 May 2004

Generic metadata


Water Water (Primary theme)

Agriculture Agriculture

Coasts and seas Coasts and seas

DPSIR: Driving force


Indicator codes
  • WEC 07b

Policy issue:  Is the deterioration of aguatic ecosystems and habitats prevented?


Key assessment

A great number (124) of alien species have been introduced in relation to aquaculture purposes (deliberate introductions and accidental associated species) in European Waters. Examining the last 30 years (in order to compare the rate of introduction with known aquaculture production) their number have decreased (see Figure 1 and Table 1) suggesting the success of EU policies in regulating and safeguarding possible adverse effects of aquaculture-related environmental hazards.

The higher decline rate of associated species compared to the slower decline rate of deliberately introduced species (48 and 33% respectively) in conjunction with the small peak exhibited in the latter 1980s, supports the argument of improvement of environmental protection.


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