GB/T 32755-2026Large yellow croaker (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 32755-2016 "Large Yellow Croaker". Compared with GB/T 32755-2016, the main differences are structural adjustments and editorial changes. In addition, the main technological changes are as follows:

a) The scientific name and classification have been changed (see Chapter 4, Chapter 3 of the.2016 edition);

b) Some descriptions of the external form have been changed (see 5.1,

4.1 in the.2016 edition);

c) The description of body color in the external morphological characteristics section has been deleted (see

4.1.1 in the.2016 version);

d) Added descriptions of the fin types of the pectoral, pelvic, and caudal fins in the external morphological characteristics section (see 5.1.2.1);

e) Some descriptions of the internal structure have been changed (see 5.2,

4.2 in the.2016 edition);

f) Some descriptions of growth and reproduction characteristics have been revised (see Chapter 6, Chapter 5 in the.2016 edition);

g) The measured body length and weight values for different age groups have been removed (see section

5.1 of the.2016 edition);

h) A description of the properties of the egg has been added (see 6.2.4);

1 Scope

GB/T 32755-2026 is the Chinese national standard covering the large yellow croaker as a farmed product - a fish that was commercially extinct in the wild and is now one of China's largest marine aquaculture species, graded on size, condition, colour and freshness. It replaces GB/T 32755-2016 and has been in force since 1 September 2026. It was issued on 27 February 2026 and has been in force since 1 September 2026, replacing GB/T 32755-2016. The document is under the responsibility of the Ministry of Agriculture and Rural Affairs. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document defines the scientific name and classification of the large yellow croaker [Larimichthyscrocea (Richardson, 1846)], and specifies its main morphology. The structural characteristics, growth and reproduction characteristics, cytogenetic and molecular genetic characteristics, and judgment rules are described, along with the corresponding detection methods. This document applies to the germplasm testing and identification of large yellow croaker.

6 Growth and Reproduction Characteristics

6.1 Growth The relationship between body length and weight of large yellow croaker (12.9cm~43.8cm) is shown in equation (1).

9 Detection Methods

9.1 Main Morphological and Structural Features Test according to the method given in GB/T 18654.3.

10 Judgment Rules

10.1 When the test results meet the requirements of Chapter 5, the species can be identified.

10.2 When the following situations occur, additional content in other chapters needs to be added for testing, and a comprehensive determination of the species should be made based on the test results.

a) If Chapter 5 cannot be detected or accurately determined, add the content of Chapter 7 or Chapter 8 for detection;

b) When a third party requests testing of all or part of Chapter 6;

c) During full-item testing. GB/T 32755-2026. Large Yellow Croaker ICS

51 National Standards of the People's Republic of China Replaces GB/T 32755-2016 Large yellow croaker Published on 2026-02-

27 Implemented on 2026-09-

01 State Administration for Market Regulation The State Administration for Standardization issued a statement.