Class · NACE Rev. 2.1

03.21 Marine aquaculture

active

Includes

fish farming in sea water, including farming of marine ornamental fish
production of bivalve spat (e.g. oyster mussel, etc.), lobsterlings, shrimp post-larvae, fish fry and fingerlings
growing of seaweed and algae
culture of crustaceans, bivalves, other molluscs and other aquatic animals in sea water

Per the official Eurostat correspondence table (NACE Rev. 2 → NACE Rev. 2.1):

NACE Rev. 2 origin	Heading (Rev. 2)	Mapping	Type
03.21	Marine aquaculture	NACE Rev. 2 class 03.21 is mapped to NACE Rev. 2.1 classes 03.21, 03.30	9:10

Content moved from 03.21 includes:

fish farming in sea water, including farming of marine ornamental fish
production of bivalve spat (oyster mussel etc.), lobsterlings, shrimp post-larvae, fish fry and fingerlings
growing of seaweed and algae
culture of crustaceans, bivalves, other molluscs and other aquatic animals in sea water
aquaculture activities in brackish waters
land-based aquaculture activities in salt water filled tanks and reservoirs
operation of marine fish hatcheries and marine worm farms
marine microalgae cultivation

Code	03.21
Level	Class
Parent	03.2
Classification	NACE Rev. 2.1
Legal basis	Commission Delegated Regulation (EU) 2023/137
Source	Eurostat (ShowVoc dissemination platform)
Data checked	2026-07-20