Barrier

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Barrier

1. See: Trade barrier.

2. See: Barrier Option.
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These chemical barriers, together with physical ones, are to be systematically surveyed by new environmental DNA techniques that will map the occurrence of salmon, trout and invertebrates.
United Kingdom : Helping to 'reconnect' the River Afan
The plastic rim was sprayed with Snail & Slug Away, and air-dried prior to introducing the slug; thus, in this study the slugs were confronted with a chemical barrier rather than a physical barrier.
Assessment of barrier materials to protect plants from Florida leatherleaf slug (Mollusca: Gastropoda: Veronicellidae)
Chemical barriers. Chemical barriers, both organic and inorganic, are less effective.
Barriers help keep those less clever rabbits at bay

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