Prawn, King (whiteleg), prawns

Litopenaeus vannamei

Method of production — Farmed
Production country — UK
Production method — Closed land based system
Picture of Prawn, King (whiteleg), prawns

Sustainability rating one info

Sustainability overview

Land based warmwater prawn farming is a new development, particularly in the UK. Producing prawns in this way addresses many of the issues of environmental concern associated with conventional open water intensive prawn production. Issues such as habitat damage; pollution of groundwater; escapes and disease transfer. Feed sustainability can be a concern but is being addressed independently by this UK producer.

Feed Resources

Criterion Score: 3

Commercial feed for this species in this system is traceable and the marine component relies on by-products and trimmings.


Environmental Impacts

Criterion Score: 7

The environmental impacts of concerns are mitigated by the use of a land based closed production system, this system prevents escapes, pollution, disease transfer and impacts on other species or habitats.


Fish Health and Welfare

Criterion Score: 2

Welfare standards are not applicable to crustacea. The closed production system prevents disease spread to other wild species.



Criterion Score: 4

Regulations covering the environmental impacts of production are not relevant to land based, closed production system farming.


Production method

Closed land based system

A new development in warmwater prawn farming is the use of land based, closed tank system that uses brackish water.


The king prawn (or whiteleg prawn, white shrimp) belongs to the largest of the prawn and shrimp family, the Penaeidae. It is a native species of the Eastern Pacific coast. Its lifecycle may be divided into 6 stages or phases, from embryo to adult, which it completes in one year. The age of sexual maturity varies from 5 to 7 months. They can live up to 2 years in the wild although farmed prawns are usually harvested at 6 months.


FAO 2006-2018.Cultured Aquatic Species Information Programme. Penaeus vannamei. Cultured Aquatic Species Information Programme. Text by Briggs, M. In: FAO Fisheries and Aquaculture Department [online]. Rome. Updated 7 April 2006. [Cited 10 September 2018]

Skretting. Delivering sustainable feed solutions for aquaculture. Available online at: Accessed 10/09/2018

FloGro Systems Company Information and Personal Communication. February 2016