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Information and public services for the Island of Jersey

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

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Fish and shellfish farming

​​​​Fish farming concessions are mainly in the east and south east of the Island's intertidal and subtidal zone, due to the favourable topography and weather conditions. There is also a subtidal concession in St Aubin's Bay.

Disease status of fish, shellfish and crustacea

Jersey has a high health status with regard to fish, mollusc and crustacean diseases.

It's a legal requirement for you to inform the States Veterinary Officer if you suspect a fish, shellfish or crustacea to have a notifiable disease.

Email the States Veterinary Officer

List of notifiable diseases and status for Jersey

Diseases Species affected Last confirmed case in Jersey
Fish diseases
Epizootic haematopoietic necrosisRainbow trout and redfin perchNever
Viral haemorrhagic septicaemia (VHS)Herring, whitefish, pike, haddock, Pacific cod, Atlantic cod, Pacific salmon, rainbow trout, rockling, brown trout, turbot, sprat and graylingNever
Infectious haematopoietic necrosis (IHN)Chum salmon, coho salmon, masu salmon, rainbow or steelhead trout, sockeye salmon, pink salmon, chinook salmon and Atlantic salmonNever
Koi herpes virus (KHV) diseaseCommon carp and koi carp2016
Infectious salmon anaemia (ISA) in respect of infection with genotype HPR-deleted of the genus Isavirus (ISAV)Rainbow trout, Atlantic salmon, brown and sea troutNever
Bacterial kidney disease (BKD)Family: SalmonidaeNever
Infectious pancreatic necrosis (IPN)Rainbow trout, brook trout, brown trout, Atlantic salmon and whitefishNever
Infection with gyrodactylus salarisAtlantic salmon, rainbow trout, Arctic char, North American brook trout, grayling, North American lake trout and brown troutNever
Spring viraemia in carp (SVC)Bighead carp, goldfish, crucian carp, grass carp, common carp and koi carp, silver carp, sheatfish and tench, orfeNever
Mollusc diseases
Infection with Bonamia exitiosaAustralian mud oyster and Chilean flat oysterNever
Infection with Bonamia ostreaeAustralian mud oyster, Chilean flat oyster, Olympia flat oyster, Asiatic oyster, European flat oyster, Argentinian oysterPresent
Infection with Marteilia refringensAustralian mud oyster, Chilean flat oyster, European flat oyster, Argentinian oyster, Blue mussel and Mediterranean musselNever
Infection with Microcytos mackiniPacific oyster, Eastern oyster, Olympia flat oyster, European flat oysterNever
Infection with Perkinsus marinusPacific oyster and Eastern oysterNever
Crustacean diseases
Taura syndromeGulf white shrimp, Pacific blue shrimp and Pacific white shrimpNever
Yellowhead diseaseGulf brown shrimp, Gulf pink shrimp, Gulf white shrimp, Gulf blue shrimp, Kuruma prawn, black tiger shrimp, Pacific white shrimpNever
White spot diseaseAll decapod crustaceans (order Decapoda)Never



Control areas for notifiable disease outbreaks

If a notifiable disease is confirmed, Natural Environment (NE) puts controls in place to limit the spread of disease. These are known as confirmed designations.

If your fish or shellfish are in a confirmed designation, you must:

  • comply with any conditions issued by NE
  • get written permission from NE to move fish and / or shellfish and equipment (allow at least 5 working days)

A Jersey Notice of Confirmed Designation has been made for shellfish - Bonamia ostreae.

New concessions

Natural Environment is responsible for administration and control of the fish farming industry. As crown land is used by the industry it is necessary to ensure wide and comprehensive consultation before a new concession is granted. Those consulted include:

  • the Fisheries and Marine Resources Panel
  • Jersey Harbours
  • the Natural Environment section of the Department of the Environment 
  • members of the public

Fish farm licence application form

Marine shellfis​​h farming

The Pacific Oyster, 'crassostrea gigas', currently forms the backbone of the industry with production equalling three quarters of the total production in the UK. Other species farmed are:

  • the mussel, 'mytilus edulis'
  • the scallop, 'pecten maximus'
  • the ormer, 'haliotis tuberculata'

Marine fin fish far​​ming

The only marine fin fish currently farmed is the turbot, 'scophthalmus maximus', at St Catherine’s.

Importati​​on of stock

The Island has EU disease free status which means that any stock imported into Jersey must conform to strict rules. 

Email States Veterinary Officer for further information and to apply for an import licence.

You must complete the online notification form a minimum of 1 working day prior to scheduled arrival into Jersey.

Pre-notification of regulated animal, plant and food goods

Aquaculture production businesses (APB)

Under EU Legislation (Aquatic Animal Health) (Jersey) Regulations 2016, all APBs must be authorised by the Minister for the Environment.  APBs normally include the following:

  • finfish farms
  • shellfish farms
  • crustacean farms

You can download documents from the Public Register of Authorised Aquaculture Production Businesses:

Finfish farmers and importers

Shellfish farmers and importers (1)

Shellfish farmers and importers (2)

Importers of ornamental fish

It's an offence to operate an aquaculture production business without valid authorisation.

Shell​​fish monitoring

To ensure food safety is monitored in accordance with EU legislation, the Department of th​e Environment funds and carries out sampling programmes of Jersey's farmed shellfish harvesting industry.

Classifica​tion of shellfish harvesting areas

The production areas for bivalve molluscs in Jersey are detailed below. These are controlled by Annex II of Regulation 854/2004.

Classification of bivalve molluscs production areas in Jersey 2022 to 2023

Sanitary s​urveys

Under EU regulations an assessment of sources of pollution must be undertaken and a sampling plan established for all new shellfish harvesting areas.

Shellfish harvesting areas: sanitary survey

Extension of the La Hurel bivalve mollusc production area 2015

Extension of the La Hurel main bed north and south bivalve mollusc production areas 2017

Biotox​​in monitoring

Information relating to official control biotoxin testing of live bivalve molluscs within classified areas in Jersey.

Live bivalve molluscs biotoxin monitoring results 2022

Live bivalve molluscs biotoxin monitoring results 2021

Live bivalve molluscs biotoxin monitoring results 2020

Live bivalve molluscs biotoxin monitoring results 2019

Live bivalve molluscs biotoxin monitoring results 2018

Live bivalve molluscs biotoxin monitoring results 2017

Live bivalve molluscs biotoxin monitoring results 2016

​Phyto​​​plankton monitoring

This is carried out by the Centre for Environment, Fisheries and Aquaculture Science (CEFAS) on behalf of the Department of the Environment.

Water samples are collected from designated shellfish growing areas. They are then analysed, by light microscopy, for various species of phytoplankton.

Water toxic algae monitoring results 2022

Water toxic algae monitoring results 2021

Water toxic algae monitoring results 2020

Water toxic algae monitoring results 2019

Water toxic algae monitoring results 2018

Water toxic algae monitoring results 2017

Water toxic algae monitoring results 2016

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