B9 Intentionally or not, many human activities 
facilitate biological invasions globally (well 
established) {3.1.1, 3.2, 3.3, 3.4}. The transport and 
introduction of an invasive alien species can be intentional or 
unintentional, or in some cases both (well established) {3.2, 
3.3}. Historically, many invasive alien species have been 
intentionally introduced outside their natural range around 
the world for their perceived benefits to people, without 
consideration or knowledge of their negative impacts (well 
established) {3.2.1, 3.2.3, 3.3.1, 3.3.2}. For example, 
invasive alien species are often used in forestry, agriculture, 
horticulture, aquaculture and as pets (well established)
{3.2.3.2, 3.3.1.1}.9
 In the Mediterranean basin alone, more 
than 35 per cent of alien freshwater fish have arisen from 
aquaculture (well established) {3.3.1.1.1}. Invasive alien 
species have also been intentionally introduced for 
recreation and amenity (well established) {3.2.1, 3.2.3.3} 
and for soil stabilization (well established) {3.3.1.1.2, 3.3.1.6, 
3.3.4.6}. Many invasive alien species have also been 
introduced unintentionally, including as contaminants of soils 
and traded goods, stowaways in shipments (well 
established) {3.2.3.1, 3.2.3.2, 3.2.3.4}, stowaways in ballast 
water and sediments, and as biofouling organisms that 
attach themselves to ships' hulls and other surfaces on 
vessels (well established) {3.2.3.1, 3.2.5, 3.3.2.3, Box 3.7}. 
Additionally, online trade in animals, plants and other 
organisms is contributing to the introduction of invasive alien 
 <Section-header> B. Globally, invasive alien species and their impacts are 
increasing rapidly and are predicted to continue rising in 
the future </Section-header> 

SUMMARY FOR POLICYMAKERS
19SUMMARY FOR POLICYMAKERS
BACKGROUND
B. Globally, invasive alien species and their impacts are 
increasing rapidly and are predicted to continue rising in 
the future