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L'înformâtion et les sèrvices publyis pouor I'Île dé Jèrri

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Invasion of non native species (FOI)

Invasion of non native species (FOI)

Produced by the Freedom of Information office
Authored by Government of Jersey and published on 31 July 2020.
Prepared internally, no external costs.


Please supply a detailed list of arrivals, sightings, actions with regard to Invasive Non Native Species (INNS) over the last 20 years. A current status of each species including; eradicated, active eradication in progress, managed residual population, endemic. Any maps or illustrative documentation that is available would be most useful.

A request for clarification restricted this request to be within the terrestrial and freshwater environment of the Island and applying to Amphibians, Crustacea, Fish, Insects, Mammals and Reptiles.


Despite being provided with refined details we will not be able locate, collate and present this information within the 12.5 hours allowed for Freedom of Information responses in accordance with Regulation 2 (1) of the Freedom of Information (Costs) (Jersey) Regulations 2014. Your request will therefore not be processed further.

You may however wish to contact the Jersey Biodiversity Centre who offer searches for this kind of data (£100 each). They can be contacted at or by post to Jersey Biodiversity Centre, 7 Pier Road, St Helier, Jersey JE2 4XW.

Article applied

Article 16 A scheduled public authority may refuse to supply information if cost excessive

(1) A scheduled public authority that has been requested to supply information may refuse to supply the information if it estimates that the cost of doing so would exceed an amount determined in the manner prescribed by Regulations.

Regulation 2 (1) of the Freedom of Information (Costs) (Jersey) Regulations 2014 allows an authority to refuse a request for information where the estimated cost of dealing with the request would exceed the specified amount of the cost limit of £500. This is the estimated cost of one person spending 12.5 working hours in determining whether the department holds the information, locating, retrieving and extracting the information.

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