Chapter 5: Productive Seas


This is the first time that a dedicated chapter on the productive use of UK seas has been compiled as part of the evidence base for Charting Progress. The evidence for this chapter has been prepared by the Productive Seas Evidence Group and is provided in a separate Feeder Report. For this assessment, we have defined ‘Productive Seas’ as consisting of socio-economic activities that use the marine environment’s natural goods and services to produce outputs of other goods and services that are owned and can be exchanged for payment.

We have categorised activities in the marine environment into principal, secondary and ancillary activities. Principal activities use marine ecosystem goods and services directly to provide a marketable good or service, such as food, energy or transport. Ancillary activities are those that enable the primary activity to function, such as construction of wind farms or the manufacture of fishing nets, while secondary activities are those that arise as a result of the outputs from the primary activity, for example, fish processing, and manufacturing of petrochemicals from oil and gas.