Skip to main content

Table 1 The different variables considered important to assess the invasive potential of a species and respective categories

From: Tracking macroalgae introductions in North Atlantic oceanic islands

Variables

Categories

Native origin

(5)

NE Atlantic

W Atlantic

Indian Ocean

Indo-Pacific

Pacific

Vector

(3)

Unknown

Maritime traffica

Fouling (within maritime traffic)b

Status

(3)

Not established

Undetermined

Established

Relative density

(6)

Rare

Occasional

Frequent

Abundant

Dominant

Unknown

Functional group

(5)

Filamentous

Corticated

Siphonous

Foliose

Corticated foliose

Articulated calcareous

Invasive potential

(3)

Not invasive

Unknown

Invasive

  1. In parentheses is the number of categories considered for each variable
  2. aMaritime traffic includes ballast water, hull fouling, sediments in ballast tanks, sediments attached to anchors/chains, commercial fishing nets and gear
  3. bFouling is considered as a subcategory of maritime traffic