Glossary

A disease of salmonid fish, caused by the bacterium Renibacterium salmoninarum.

Relating to the bottom of a sea or lake or to the organisms that live there.

The total amount of living or dead material in a given habitat, population, or sample. Specific measures of biomass are generally expressed in dry weight (after removal of all water from the sample) per unit area of land or unit volume of water.

The weight of fish held on a site above the maximum weight authorised in the CAR permit issued by SEPA.

The maximum weight of biomass that can be held on a fish farm as authorised in the CAR permit issued by SEPA.

Naturally occurring poisonous chemical compound produced by some types of marine algae. Filter-feeding bivalve shellfish can accumulate these toxins from naturally occurring microscopic algae. These algae are periodically present in the water column and become available to the shellfish as part of their diet. The consumption of contaminated shellfish can pose health risks to the consumer as well as economic risks to the shellfish industry. In the European Union (including the UK) there are currently three major shellfish biotoxin groups that can be detected in shellfish and are subject to statutory testing to protect human health. These are: Paralytic Shellfish Poisoning (PSP) toxins; Lipophilic toxins, including those responsible for Diarrhetic Shellfish Poisoning (DSP); Amnesic Shellfish Poisoning (ASP) toxins.

Any marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels. In the context of European food hygiene legislation, the term definition as "'Bivalve molluscs' means filter-feeding lamellibranch molluscs".

Medicated feed product containing the active ingredient teflubenzuron. Used for the control of sealice on farmed Atlantic salmon.

Refers to regulation under the Water Environment (Controlled Activities) (Scotland) Regulations 2011. Permits are issued by SEPA to seawater and freshwater fish farms that set out the conditions fish farms must comply with. If the fish farms do not comply with the permit conditions, SEPA can take legal action.

A defined piece of work, relating to a site or area, that may involve investigation, inspection or the collection of information by the Fish Health Inspectorate of Marine Directorate.

A unique identification number assigned to an individual case identified by Marine Scotland.

Centre for Environment, Fisheries and Aquaculture Science.

Any of several fishes of the genus Salvelinus, especially the Arctic charr, related to the trout and salmon.

Food Standards Scotland's assignment of ‘classes’ (A,B or C) to individual harvesting areas based on official monitoring programme results, which determine the extent of microbiological contamination in production areas. Classification 'X' denotes the area being unclassified. The requirements are given in Annex II, Chapter II of Regulation (EC) No 854/2004.

A legal notice designating an identified area where the competent authority has confirmed that a listed disease or an emerging disease is present in aquatic animals under the terms of regulation 28 of the Aquatic Animal Health (Scotland) Regulations 2009. The purpose of the notice is to control the movement of fish and shellfish, equipment or any other material that may lead to the spread of the confirmed disease.

A legal notice served under the terms of the Diseases of Fish (Control) Regulations 1994, for the purpose of controlling the spread of diseases of fish by restricting the movement of dead fish. This is a historic term and this regulation is no longer in force.

A legal notice served under the Fish Health Regulations 1997 for the purpose of controlling the spread of listed diseases of molluscs by restricting the movement of shellfish into or from the designated area that may lead to the spread of the disease.

Crown Estate Scotland manages land and property owned by the Monarch in right of the Crown. Crown Estate Scotland works with people and organisations to ensure that the assets are managed in a sustainable way that creates prosperity for Scotland and its communities. The business was set up following the Scotland Act 2016.

Land that forms part of the hereditary possessions of The Crown. In Scotland this land is referred to as 'The Scottish Crown Estate', which is managed by Crown Estate Scotland. This includes around half the foreshore in Scotland and virtually all the seabed out to 12 nautical miles. All revenue profit from the Scottish Crown Estate goes to the Scottish Consolidated Fund.

The active ingredient in the trade product Excis. Used for the treatment and control of sealice on farmed Atlantic salmon.

The active ingredient in the product AMX (Alphamax). Used for the control of sealice on farmed Atlantic salmon.

A site that was previously registered with Marine Directorate for the purpose of aquaculture, but is no longer in existence (all equipment removed from water).

A legal order, made and served under the Diseases of Fish Act 1937, identifying an area, normally a fish farm site, where the movement of fish ova, fish or fish feed is restricted, for the purpose of the control of fish diseases. This is a historic term and this Act is no longer in force.

Diarrhetic Shellfish Poisoning is a food-borne intoxication associated with eating contaminated shellfish harvested from waters affected by toxins that are produced by dinoflagellates of the genus Dinophysis.

Biological Assay test for Diarrhetic Shellfish Poisoning. Occasionally used within Food Standards Scotland's Shellfish Monitoring Programme for unvalidated testing methods.

A dinoflagellate species that can cause Diarrhetic Shellfish Poisoning (DSP) and is tested for within Food Standards Scotland's Phytoplankton Monitoring Programme.

Toxin produced or elaborated by planktonic algae (dinoflagellates) upon which shellfish feed.

A viral, bacterial, fungal or parasitic pathogen causing diseases of aquatic animals.

A species of bacterium that is a member of the faecal coliform group which is associated with the intestines of warm-blooded animals and birds. These bacterium are generally harmless, but when passed in excrement they can enter seawater from sewage or farm animal run-off and once in seawater, they can be concentrated by filter-feeding shellfish.

The fertilised ova (eggs) of fish, which may or may not show the development of eye spots.

The active ingredient in the trade product Slice, used for the control of sealice on farmed Atlantic salmon.

Concentration limits for specific chemicals which, if met, are unlikely to cause environmental effects.

Topical bath treatment containing the active ingredient Cypermethrin. Used for the control of sealice on farmed Atlantic salmon.

Crown Estate Scotland Leases that have reached their expiry date need to be formally terminated at expiry in order to be brought to an end. Failing formal termination at expiry, the lease will continue to be 'live' under a process called Tacit Relocation. It is therefore recommended that any queries regarding the termination status of expired leases are directed to The Crown Estate Scotland.

Contamination of food and water by human and animal faecal bacteria. Public health controls on commercial shellfish production use faecal coliforms and/or E. coli to assess the degree of faecal contamination.

An aquaculture establishment for the production of fish or the ova of fish, consisting of cages, ponds, tanks, raceways, hatching troughs or other production facilities.

An unintended release of live aquaculture animals from a fish farm site.

Active ingredient in antimicrobials used to control bacterial infections.

In Scotland this is the area falling between the lines of Mean Low Water Spring (MLWS) and Mean High Water Spring (MHWS) as defined by Ordnance Survey.

Food Standards Scotland (FSS) is the public sector food body for Scotland. FSS was established by the Food (Scotland) Act 2015 as a non-ministerial office, part of the Scottish Administration, alongside, but separate from, the Scottish Government.

A floating pen, normally constructed of wood or metal, supporting a meshed net containing fish for the purpose of fish farming, located in freshwater.

A facility used for the holding and hatching of fish ova, utilising freshwater.

A facility, normally dug into the ground, containing freshwater for the purpose of fish farming.

A channel or series of channels, containing freshwater, normally constructed of concrete, containing fish for the purpose of fish farming.

A tank, containing freshwater, normally constructed of steel or glass reinforced plastic, containing fish for the purposes of fish farming.

A disease of fish, caused by the bacterium Aeromonas salmonicida.

A legal notice, served under the terms of the Diseases of Fish (Control) Regulations 1994, for the purpose of controlling the spread of diseases of fish by restricting the movement of personnel, dead fish and equipment onto or from a fish farm site. This is a historic term and this regulation is no longer in force.

Scotland's Aquaculture website master site identification list, used to identify/cross reference sites with potentially different names in different organisations.

Fish held on a fish farm site for ongrowing to harvest weight for supply to the market.

The frequency at which visits are made to an aquaculture facility for health inspections by Marine Directorate.

High Performance Liquid Chromatography is a chemical-based (chromatographic) technique that can separate a mixture of compounds and is used to identify, quantify and purify the individual components of the mixture. The test is used within Food Standards Scotland's Biotoxin Monitoring Programme to detect and quantify the presence of toxins.

Active ingredient in peroxide solutions used to control parasites.

An aquaculture site that will not be in operation for the foreseeable future and/or has not been producing within the last 3 years. This status may be changed by the owner or operator, subject to authorisation being granted by Marine Directorate. Please note production information is extracted from the Annual Production Surveys and is only updated following publication of the surveys on an annual basis therefore it may not reflect the current three year period.

A disease of fish caused by the infectious pancreatic necrosis virus.

A legal notice designating an identified area where the competent authority suspects that a listed disease or an emerging disease is present, or may become present, in aquatic animals under the terms of regulation 24 of the Aquatic Animal Health (Scotland) Regulations 2009. The purpose of the notice is to control the movement of fish and shellfish, equipment or any other material that may lead to the spread of the suspected disease.

A disease of salmonid fish caused by the infectious salmon anaemia virus.

Liquid Chromatography-Mass Spectrometry is a technique that can separate a mixture of compounds and is used to identify, quantify and purify the individual components of the mixture. The test is used within the Food Standards Agency in Scotland's Biotoxin Monitoring Programme to detect and quantify the presence of toxins.

A legal agreement whereby an area of land (foreshore or seabed) is occupied by a third party (known as a 'tenant') for an agreed purpose, such as fish farming, and which gives consent for the tenant to develop the fish farm on the lease site(s), if other required permissions are gained.

The maximum fish farming equipment set out in the lease and allowed to be used within the boundary of the site(s) at any one time.

The identification code used by Crown Estate Scotland referring to lease agreements in Scotland for areas of foreshore or seabed for particular activities, including aquaculture.

The particular area(s) of foreshore or seabed leased for the purposes of farming finfish, shellfish or seaweed.

A secies of dinoflagellate that may be a producer of saxitoxin, which can accumulate in bivalves and may cause Paralytic Shellfish Poisoining.

Conditions set out in the CAR permit issued by SEPA that are linked to activities at other sites. For example, sites which must be used in rotation, or a maximum weight of fish that can be held across a group of sites at any one time.

Lipophilic Toxins (OA/DTXs, PTXs, YTXs and AZAs) are tested for within the Food Standards Agency in Scotland's Biotoxin Monitoring Programme.

A disease of fish or shellfish listed in either annex IV part 2 of Directive 2006/88 or schedule 1 of the Aquatic Animal Health (Scotland) Regulations 2009. The presence or the suspicion of the presence of these diseases must be reported to the competent authority (Marine Directorate Fish Health Inspectorate on behalf of the Scottish Ministers).

Guidelines created by Marine Directorate to describe areas designated on the basis of Marine Directorate Science predictive modelling to estimate nutrient enhancement and benthic impact in sea lochs or similar water bodies supporting aquaculture. Used in the initial stages of the aquaculture planning process to assess whether a particular body of seawater is a suitable area for a proposed aquaculture development with regard to environmental sensitivity of the sea loch.

The ongrowing of marine finfish species in fish farms.

A directorate of The Scottish Government, responsible for the integrated management of Scotland's Seas.

Management areas defined by Marine Directorate, are used for the control of outbreaks of notifiable fish diseases in the marine environment. Management areas are developed around active finfish seawater sites only. Shellfish sites will be listed under a management area if they are within the boundaries of an existing management area zone. However, this is solely to aid communication with shellfish farmers in a disease outbreak, however they do not influence the creation of management area zones.

A department of Marine Directorate providing scientific and technical support to The Scottish Government.

The maximum weight of fish that can be held on site at any time, as authorised in the CAR permit issued by SEPA.

A condition in the CAR licence that states that the maximum weight of fish contained on a group of sites cannot exceed a certain combined amount.

The maximum quantity of a sealice chemical authorised to be administered in one treatment.

A substance that takes part in or is produced during metabolism.

Monitoring for the presence of bacteriological organisms that can give rise to human health problems.

Any invertebrate of the phylum Mollusca, having a soft unsegmented body and often a shell, secreted by a fold of skin (the mantle). The group includes bivalves (clams, mussels).

The CAR permit for each site requires that a seabed monitoring survey is carried out by the operator during each production cycle and submitted to SEPA for evaluation. Depending on the size and location of the site, different categories of monitoring apply. In older licences more limited monitoring is required along one transect away from the pen edge and out to the point predicted by modelling to be the edge of the Allowable Zone of Effect (AZE). Sampling points for a site-specific survey are determined by a modelling process that predicts the area of the seabed that will be affected by the fish farm site. These surveys must also include samples from two reference stations situated between 500 metres and 1 kilometre from the site. More recently issued licences require more extensive monitoring to be carried out on four transects away from the pen edge to allow an area of impact (known as the allowable mixing zone or AMZ) to be calculated.

The method used to monitor the condition of the seabed around the fish farm site. Methods include benthic surveys, which involve taking grab-samples of the sediment of the seabed and visual surveys carried out by dropping a camera and taking video or still photographs of the seabed.

The weight of dead fish that have been removed from the cages during the month. This figure does not include fish that have been harvested as production.

A legal notice or order placed to prevent the spread of listed and emerging aquatic animal diseases by restricting the movement of live or dead fish or shellfish and other items of equipment or personnel that pose a risk of transferring infection out of a designated area.

Integrated multi-trophic aquaculture (IMTA) provides the by-products, including waste, from one aquatic species as inputs (fertilizers, food) for another.

A unit of length, by international agreement exactly 1,852 metres, commonly used in international law and treaties, especially regarding the limits of territorial waters.

Not detected means that no traces of the active ingredients emamectin benzoate or teflubenzuron were found in seabed sediment samples taken at fish farm sites following sealice treatments.

An aquaculture site that will not be in operation for the foreseeable future and/or has not been producing within the last 3 years. This status may be changed by the owner or operator, subject to authorisation being granted by Marine Scotland. Please note production information is extracted from the Annual Production Surveys and is only updated following publication of the surveys on an annual basis therefore it may not reflect the current three year period.

A disease of fish, shellfish or crustaceans listed in annex IV part 2 of Directive 2006/88 and those listed in schedule 1 of the Aquatic Animal Health (Scotland) Regulations 2009 , the presence or the suspicion of the presence of which is required to be reported to the competent authority which is Marine Scotland.

Food or food product that reportedly provides health and medical benefits, including the prevention and treatment of disease.

Lipophilic toxin (LT) that accumulates in bivalves and causes diarrhetic shellfish poisoning (DSP).

Okadaic Acid/Dinophysistoxins/Pectenotoxins - are all Lipophilic Toxins (LTs) tested for within Food Standards Scotlands' Biotoxin Monitoring Programme.

A verified shellfish or water sample taken by Food Standards Scotland's sampling officers, for the purposes of Food Standards Scotland's official control monitoring programmes.

Within Food Standards Scotland's biotoxin monitoring programme, the second sample, from an area covered by a temporary closure notice (TCN), below the statutory limits for all three toxins as stipulated in EU Regulation 854/2004. Openings (lifting of a TCN) can be determined by at least two consecutive results below the statutory limit.

An aquaculture production business that is farming fish, shellfish, crustaceans, or shellfish on an aquaculture site.

The change in operator of an aquaculture production site or business.

Female gametes; egg cells.

Paralytic Shellfish Poisoning is a foodborne intoxication associated with the consumption of contaminated shellfish, harvested from waters affected by toxins that are produced by dinoflagellates of the genus Alexandrium.

A Biological Assay test for Paralytic Shellfish Poisoning. Occasionally used in Food Standards Scotland's Shellfish Monitoring Programme for unvalidated testing methods.

A test for Paralytic Shellfish Poisoning using High Performance Liquid Chromatography within the Food Standards Scotland Biotoxin Monitoring Programme.

A test for Paralytic Shellfish Poisoning using High Performance Liquid Chromatography within the Food Standards Scotland Biotoxin Monitoring Programme.

The person who is responsible for ensuring compliance with the terms of the permit. This can be an individual, a partnership or a company.

One or more species of fish that can be farmed on the site, as authorised in the CAR permit issued by SEPA.

Products which are authorised by SEPA to be used on fish farm sites for the control of sealice. The maximum treatment quantity of each product that can be used at each site is set out in the CAR permit.

The collection of small or microscopic organisms, including algae and protozoans, that float or drift in great numbers in fresh or salt water, especially at or near the surface, and serve as food for fish and other larger organisms.

The permission required in the United Kingdom in order to be allowed to build on land, or change the use of land. In Scotland, planning permission is required for marine aquaculture developments, and the land in such cases is the foreshore and seabed.

Phytoplankton are single-celled microscopic algae which can produce toxins that accumulate in shellfish. Shellfish that feed on some of these algae can be rendered toxic and pose a health risk to people that eat them.

A cluster of classified production areas of similar hydrographical and environmental characteristics used within the Food Standard Agency in Scotland's biotoxin monitoring programme. Each POD contains a Representative Monitoring Point (RMP) that covers all Associated Harvesting Areas (AHAs) within the cluster.

The output from an aquaculture site – including the provision of fish or shellfish for human consumption, the provision of fish for restocking or enhancing fisheries, the provision of juvenile fish or shellfish for ongrowing on another aquaculture site or the provision of ova for hatching elsewhere.

Prorocentrum lima can cause Diarrhetic Shellfish Poisoning (DSP) and is tested for within Food Standards Scotland's Phytoplankton Monitoring Programme.

A species of dinoflagellate and producer of hepatotoxin, which may accumulate in bivales and can cause shellfish poisoning.

A zone around a site or area where the presence of a listed disease has been confirmed. Movement restrictions may be placed on the protection zone to restrict the movement of susceptible or vector species of fish and shellfish into and out of the protection zone.

A species of dinoflagellate and producer of yessotoxin, which may accumulate in bivalves and can cause shellfish poisoning.

Pseudo-nitzschia can cause Amnesic Shellfish Poisoning (ASP) and is tested for within Food Standards Scotland's Phytoplankton Monitoring Programme.

The body of water in which a fish farm site is located.

The process of registering a non-commercial undertaking, a put and take fishery, or a specialist transport business with the competent authority, as required by regulation 12 of The Aquatic Animal Health (Scotland) Regulations 2009. Prior to these regulations and the authorisation process, registration was required for all aquaculture production facilities and it is this form of registration that is referred to in the site details under Date Registered.

A sample of the seabed sediment taken at a fish farm site will normally consist of more than one part, each being referred to as a replicate.

A specified geographical grid location set by Food Standards Scotland from which samples are taken to represent either a single, or several, wild bivalve mollusc beds or aquaculture sites.

Trace of a chemical compound found in the seabed sediment following discharge of the chemical.

The person who is responsible for ensuring compliance with the terms of the permit. This can be an individual, a partnership or a company.

Any of the juvenile stages of Atlantic salmon (Salmo salar L.), which would include green or eyed ova, alevins, fry, parr or smolts.

Topical bath treatment containing the active ingredient azamethiphos. Used for the control of mature pre-adult to adult sealice on farmed Atlantic salmon.

Scottish Association for Marine Science

A sample of the sediment from the seabed in the vicinity of fish farms taken for analysis to determine the concentration of sealice treatment residues.

Shellfish or water sample collected as part of Food Standards Scotland's official control monitoring programmes.

National Grid Reference (NGR) of sample collection point (to an accuracy of 10m).

A formal record of the intended sampling to be undertaken in a harvesting area with respect to species, position of sampling points and frequency of sampling as part of Food Standards Scotlands' Monitoring Programme. The components of the sampling plan are identified following the sanitary survey carried out on the harvesting area.

An evaluation of the sources of faecal contamination in or near a harvesting area, together with an assessment of the potential impact of these sources on the microbial status of the harvesting area which is carried out on behalf of Food Standards Scotland.

The body responsible for environmental regulation in Scotland.

Seabed monitoring surveys are carried out by marine fish farm operators and submitted to SEPA for evaluation. Under the previous monitoring framework, the result of the evaluation was a classification of either satisfactory, unsatisfactory, or borderline. A satisfactory or borderline classification indicates that environmental quality standards are being met at the site in question.

Seabed surveys carried out under the new regulatory framework will be assessed against each relevant Permit condition. They will also be assigned one of four overall classifications:

• Compliant – with both the pen edge and areal standard
• Non-compliant E, A or B – where E denotes non-compliance with the pen edge standard, A with the areal standard and B with both
• Survey inadequate – where the sampling, sample analyses, data analyses and/or reporting did not follow the EMP (Environmental Monitoring Plan) or MACS (i.e. the operator at fault), or sampling was not carried out during the period specified in the permit
• Unable to verify - that the results did not allow for the area to be calculated (i.e. due to the variability in the seabed, operator not at fault)

One of the SEPA operations teams dealing with the regulation and monitoring of fish farms around the country.

In Scotland, seabed refers to the bed of the sea below the line of Mean Low Water Springs (MLWS), as defined by the Ordnance Survey.

Crustacean ecto-parasites of fish. In a Scottish context, lice of the species Lepeoptherius salmonis or Caligus elongates. Parasitic crustaceans that feed on the mucus, skin and blood of marine fish, affecting the health and the appearance of the host fish.

Type of product used to control infestations of sealice at marine fish farm sites.

If in-feed sealice treatments have been used on a fish farm site, then sediment samples must be taken and analysed for residues of the active ingredient emamectin benzoate. Results of the analysis are submitted to SEPA. In the period when Teflubenzuron was authorised analysis was also required for this.

Areas of the foreshore or seabed where shellfish grow naturally or are cultured.

A floating pen, normally constructed of plastic or metal, supporting a meshed net containing fish for the purpose of fish farming, located in seawater.

A facility used for the holding and hatching of fish ova, using seawater.

An arrangement of ropes, floats and weights placed in seawater to provide an artificial substrate for the cultivation of some species of shellfish.

A channel or series of channels, containing seawater, normally constructed of concrete, containing fish for the purpose of fish farming.

A floating structure, normally constructed of wood and steel, from which ropes are suspended into the sea, to provide an artificial substrate for the cultivation of some species of shellfish.

A tank, containing seawater, normally constructed of steel or glass reinforced plastic, containing fish for the purposes of fish farming.

Wooden or metal structures, placed on the foreshore, used to support mesh bags containing shellfish, usually oysters, for ongrowing.

Adult shellfish that are large enough to be offered for sale.

The raising of shellfish from the juvenile state in controlled conditions. The production of shellfish in a managed environment, enhancing production beyond that which would normally be achieved naturally.

A number of areas around the coast are designated as "Shellfish Growing Waters". European Directives place requirements on Member States to protect water quality where shellfish are produced for human consumption. SEPA undertakes monitoring and classification of these waters in conjunction with Food Standards Scotland.

There are a number of coastal areas designated as Shellfish Growing Waters, European Directives place requirements on member states to protect water quality where shellfish are produced for human consumption. SEPA undertakes monitoring and classification of Shellfish Growing Waters in conjunction with Food Standards Scotland, the sampling points are known as shellfish growing water monitoring points.

In reference to Food Standards Scotlands' Shellfish Monitoring Programme, any sea, estuarine or lagoon area, containing either natural beds of bivalve molluscs or sites used for the cultivation of bivalve molluscs, and from which live bivalve molluscs are taken.

Juvenile shellfish that are being ongrown, but which have not yet reached a saleable size.

In reference to Food Standards Scotlands' Shellfish Monitoring Programme, any sea, estuarine or lagoon area, containing either natural beds of bivalve molluscs or sites used for the cultivation of bivalve molluscs, and from which live bivalve molluscs are taken.

The very early developmental stages of bivalve shellfish.

A physical survey of the shoreline and the area adjacent to the shore to confirm the presence of potentially contaminating sources first identified through a desk-based study, and to identify additional potential sources of contamination.

A facility or group of facilities for the production of aquaculture which are operated as a single entity by an aquaculture production business.

This refers to the nature of the intended use of a leased area (site) of seabed belonging to Crown Estate Scotland, and in the case of aquaculture indicates the consented species of fish, seaweed or shellfish for cultivation.

The maximum fish farming equipment specified in the lease of an area of seabed and allowed to be deployed within the boundary of the site(s) at any one time.

The facilities, such as cages, tanks, ponds or raceways which together are grouped together to constitute a site.

Please note that due to a changes in the source database, the data for each site displays separate entries for site facility and for species rather than allocating facilities to specific species/stages. This has improved the accuracy of the number of facilities on the site. Facility data will have N/A for ‘species’ and ‘stage’ and species data will have N/A for ‘facility type’ and 0 for ‘number of facilities’.

The unique reference number used by Food Standards Scotland for a shellfish harvesting area.

The name of the water body in which a leased aquaculture site is located, such as a Loch, Sound, Voe or Bay.

The trade name of a medicated feed product containing the active ingredient emamectin benzoate. Used for the control of sealice on farmed Atlantic salmon.

A young salmon at the stage when it migrates from fresh water to the sea.

Annual species-specific classification given to a shellfish harvesting area by Food Standards Scotland once sufficient samples have been submitted within the Microhygiene official control monitoring programme.

A legal notice placed under Regulation 30(4) of the Aquatic Animal Health (Scotland) Regulations 2009. An SPN will only be placed in conjunction with either an initial designation notice or confirmed designation notice. The SPN prohibits any person from entering the associated designation area except those people consented within the notice. The purpose of the notice is to control the movement of people that may lead to the spread of a listed fish or shellfish disease.

An administrative notice issued by the Local Authority, closing all shellfish harvesting areas within a POD where the presence of biotoxins above the regulatory limit has been identified by the Food Standards Scotland Biotoxin Monitoring Programme.

The legal party entering into a lease for an area of foreshore and/or seabed.

The active ingredient in the trade product Calicide, used for the control of sealice on farmed Atlantic salmon.

A notional maximum amount of a sealice treatment that, if discharged following a single treatment, will (according to a computer model) achieve compliance with environmental quality standards.

Poisonous substance produced by plankton in the water that can be concentrated in filter-feeding bivalve mollusc shellfish.

A disease of fish, caused by the viral haemorrhagic septicaemia virus.

A small bay or narrow creek.

A classified harvest area which is not a managed aquaculture site and may be exploited by more than one harvester.

Notices issued under the Aquatic Animal Health Regulations 2009 which revoke existing Movement Restrictions.

Fish of the Wrasse family. In Scottish waters these would include the Ballan, Corkwing, Cuckoo and Goldsinny wrasse and the Rockcook. Some species of wrasse are known as cleaner fish, performing grooming functions for other species of fish and feeding on what they remove. Wrasse may be employed as cleaner fish to combat sealice infestation in salmon farms.

Lipophilic toxin (LT) tested for within the Food Standard Agency in Scotland's Biotoxin Monitoring Programme.