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To start a salmon fish farm, first define the species, production system, scale, location, and target market; then test candidate sites, assess environmental and health risks, confirm local approvals, and build a project-specific budget. There is no universal permit checklist or reliable startup-cost figure: both depend on where and how you plan to farm.
Decide what kind of salmon farm you want to build
“Salmon farm” can describe different species, production stages, and systems. Before looking for land or water, write down what you intend to produce, how much, for which buyers, and whether the operation will use marine cages or a land-based system. These choices shape the site requirements, engineering, permits, costs, and operating plan.
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FAO’s Atlantic salmon profile describes a production pathway that includes hatchery and smolt stages before grow-out. Decide whether your project will handle all those stages or focus on a particular stage, and identify where the stock will come from. Do not treat information about another salmon species or farming system as a design standard for your project: for example, the FAO coho profile’s site values and practices are species-specific examples, not universal Atlantic salmon recommendations.
Compare the site demands of marine cages and land-based systems
The system changes which site questions deserve the most attention. The following are screening considerations, not a complete engineering specification; the actual design and regulatory obligations depend on the proposed farm and location.
| Consideration | Marine cages | Land-based system |
|---|---|---|
| Water and site conditions | Assess temperature, dissolved oxygen, salinity, depth, current velocity, storm exposure, water exchange, and proximity to other farms. | Assess the proposed water supply and discharge requirements. Exact requirements depend on the system design and are not specified as universal values in the FAO guidance discussed here. |
| Infrastructure and access | Check access to transport, markets, materials, equipment, labor, and other operating inputs. | Check access to transport, markets, materials, equipment, labor, and other operating inputs. |
| Environmental and regulatory review | Assess carrying capacity, nutrient waste, benthic effects, escape risks, and interactions with wild ecosystems. | Assess the environmental effects of the proposed design, including its water supply and discharge, and identify applicable local approvals. |
| Energy and cost | Estimate costs for the specific site and proposed design; a general comparative cost is not established by the sources cited here. | Estimate energy, construction, and operating costs for the specific design; a general comparative cost is not established by the sources cited here. |
FAO’s site-selection guidance treats technical and non-technical factors together: water and climate, legal and socio-economic conditions, infrastructure, markets, and access to inputs all affect whether a site is suitable.
Screen and test candidate sites before committing capital
Check practical access and constraints
For each candidate, investigate whether the proposed system can access suitable water and infrastructure, and whether construction and ongoing operations can be supported by available transport, labor, equipment, feed, and other inputs. Consider proximity to buyers and the route for moving stock and products. Identify legal constraints early, rather than assuming that an apparently suitable location can be developed.
Sample the water
FAO site-selection guidance calls for water sampling and laboratory assessment of physical, chemical, biological, and microbiological properties. Depending on the project, measurements include dissolved oxygen, pH, salinity, and ammonia. A site assessment is only a starting point: FAO environmental-management guidance also calls for continued monitoring of water quality, cultured stock, and hygiene during operation.
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Assess the full production environment
For a marine-cage proposal, evaluate the water and exposure conditions relevant to the site, including temperature, oxygen, salinity, depth, currents, and storms, as well as nearby farms. Treat species-specific examples in FAO’s coho profile as examples only; they do not establish universal operating limits for Atlantic salmon or another species.
J. Kövári, author of FAO’s Considerations in the Selection of Sites for Aquaculture, writes: “The success of an aquaculture project depends to a large extent on the proper selection of the site to be developed into a fish farm or hatchery.”
Check ecological and social carrying capacity
A site’s capacity is not just the amount of fish it can physically hold. FAO proceedings distinguish physical, production, ecological, and social carrying capacity. The assessment should consider whether the proposed operation can be supported without unacceptable effects on the surrounding environment or communities.
- Evaluate nutrient wastes and potential effects on the seabed, including benthic effects for marine sites.
- Assess escape risks and possible interactions with wild ecosystems.
- Consider community and other social factors relevant to the location.
- Use site-specific analysis; a stocking level used at one farm is not a universal capacity limit.
Build fish health and biosecurity into the design
Plan for fish-health services, disease surveillance, diagnostics, monitoring, and a response to health problems as part of the operating model. These are ongoing responsibilities, not tasks to add after stocking begins. FAO’s 2023 Progressive Management Pathway for Aquaculture Biosecurity describes a risk-based approach that spans enterprise, national, and regional levels.
Before choosing a site or scale, determine how you will obtain health advice, monitor stock, identify problems, and act on them. The specific procedures and rules that apply will depend on the species, system, and jurisdiction.
Secure stock, feed, people, and buyers
Production planning must connect the biological cycle to the operation’s supply chain. If your plan includes hatchery and smolt stages before grow-out, identify the facilities, expertise, and stock supply needed at each stage; if it does not, establish how suitable stock will be obtained. Confirm likely feed supply and cost, along with access to materials, equipment, labor, transport, and buyers. FAO’s site-selection guidance treats access to inputs and markets as part of site feasibility, not as a separate afterthought.
Do not finalize scale based only on a target output. It must be workable for the chosen location, system, stock supply, operating inputs, health plan, approvals, and market access.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Find out which approvals apply before building
There is no single global list of permits for starting a salmon farm. Requirements depend on the country and site, the species and production system, and the proposed scale. Depending on the jurisdiction, the project may need review of environmental sustainability and site suitability as part of permitting; the responsible agencies, applications, studies, water-use rights, fish-health rules, construction approvals, and operating conditions must be confirmed locally.
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- Identify the aquaculture, fisheries, environmental, and planning authorities responsible for the proposed site.
- Ask those authorities which approvals and studies apply to the specific species, system, location, and scale.
- Check whether water access, environmental assessment, construction, fish-health, or operating requirements affect the site or project design.
- Resolve the approval path before committing major construction or equipment spending.
FAO legislation guidance describes permits as a way to assess environmental sustainability and says site suitability should be reviewed before a permit is issued. For project-specific requirements, consult the relevant local authorities and qualified aquaculture engineers.
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Build a location-specific budget and implementation plan
How much does it cost to start a salmon farm? The available evidence does not support one defensible universal budget or profitability estimate. A useful estimate can be made only after the species, system, scale, location, energy and labor needs, stock and feed supply, permitting path, and target market are defined.
Separate construction and equipment needs from recurring operating costs, then test whether the project can be financed and operated under the requirements of the chosen site. The sources discussed here do not establish a current numerical cost comparison between marine cages and land-based systems, nor do they establish guaranteed yields or business returns. Avoid relying on figures from a different species, location, system, or farm as though they predict your project’s results.
What to have in hand before proceeding
Before moving from feasibility work into a major capital commitment, assemble a project plan that specifies the intended species, system, scale, and market; documents site and water assessments; addresses ecological capacity and biosecurity; identifies stock, feed, staffing, and buyer arrangements; and confirms the local approvals pathway. If key inputs remain unknown, treat the proposal as unproven rather than assuming the gaps will resolve themselves after construction.
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