ISIC Code 0321 - Marine aquaculture

SICCODE.com / ISIC Code Lookup / Section A / Division 03 / Group 032 / 0321

Key facts for ISIC 0321

Code
0321
Level
Class, ISIC Rev. 5
Official title
Marine aquaculture
Basis
Primary activity of the establishment

Last updated August 19, 2026

Activities that moved

Part of Rev. 4 class 0321 moved to another Rev. 5 class.

Class 0321 continues to exist while part of its activities are moved to another emerging class 0330.

Inclusions

Source: United Nations Statistics Division, ISIC Rev. 5 explanatory notes, August 19, 2026.

  • 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 seaweeds 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

Exclusions

Activities the United Nations places in another code.

Where ISIC 0321 sits in the hierarchy

Section A Agriculture, forestry and fishing Division 03 Fishing and aquaculture Group Direct parent 032 Aquaculture
Class Current 0321 Marine aquaculture
Other class in this group (1)

NAICS equivalents for ISIC 0321

These NAICS 2022 codes correspond to ISIC 0321 (Marine aquaculture).

Source: United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table; U.S. Census Bureau, 2017 NAICS to ISIC Rev. 4 concordance; U.S. Census Bureau, 2017 to 2022 NAICS concordance.

NACE Rev. 2.1 equivalents for ISIC 0321

These NACE Rev. 2.1 (via ISIC) codes correspond to ISIC 0321 (Marine aquaculture).

Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence.

Using ISIC 0321

Use ISIC 0321 for marine aquaculture, when that is the establishment's primary activity.

What does ISIC 0321 include?

ISIC 0321 covers fish farming in sea water and aquaculture activities in brackish waters, among other activities listed under Inclusions above.

What does ISIC 0321 exclude?

ISIC 0321 does not cover frog farming, which is ISIC 0322, and operation of sport fishing preserves, which is ISIC 9319.

How is ISIC 0321 different from ISIC 0322?

ISIC 0321 covers marine aquaculture, and frog farming belongs in ISIC 0322 (Freshwater aquaculture).

What NAICS codes correspond to ISIC 0321?

ISIC 0321 corresponds to NAICS 112511 (Finfish Farming and Fish Hatcheries), NAICS 112512 (Shellfish Farming), and NAICS 112519 (Other Aquaculture).

What changed for ISIC 0321 from Rev. 4?

Class 0321 continues to exist while part of its activities are moved to another emerging class 0330.

Sources for ISIC 0321

  • Official classification source United Nations Statistics Division. International Standard Industrial Classification of All Economic Activities (ISIC), Rev. 5. Explanatory notes, August 19, 2026. United Nations ISIC page

Published by SICCODE.com. Titles, inclusions, and exclusions are the United Nations text.