GB/T 15807-2026Saccharina japonica - Broodstock and seedlings (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 15807-2008 "Summer Seedlings for Kelp Aquaculture". Compared with GB/T 15807-2008, the main differences are structural adjustments and... Aside from editorial changes, the main technical changes are as follows:

---The source and quality requirements for seed algae have been added (see Chapter 4);

---The quality requirements for seedlings have been revised (see 5.2.2,

4.1 in the.2008 version);

---Added a method for testing algae seedlings (see 6.1);

---Added inspection rules for algae seedlings (see 7.1);

---Increased transportation requirements for seed algae (see 8.1);

---The transportation requirements for seedlings have been changed (see 8.2, Chapter 7 of the.2008 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee on Fisheries Standardization (SAC/TC156). This document was drafted by: Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Shandong Oriental Ocean Technology Co., Ltd.; and Weihai Changjiang Fisheries Research Institute. Qingdao Ocean Technology Co., Ltd., Xiamen University, Shandong Academy of Marine Sciences (Qingdao National Marine Science Research Center). The main drafters of this document are. Wang Wenjun, Liang Zhourui, Lü Fang, Ye Naihao, Li Xiaojie, Xiao Luyang, Lu Xiaoping, Wang Weiwei, Zhao Lili, and Chang Lirong. Huang Ershuai, Liu Tao, Zhang Yan, and Wang Feijiu. The release history of this document and the document it replaces is as follows:

---First published in.1995 as GB/T 15807-1995, and revised for the first time in.2008;

---This is the second revision. kelp seeds and seedlings

1 Scope

GB/T 15807-2026 is the Chinese national standard covering kelp broodstock and seed string - the selection of the sporophytes, the release and settlement of the spores in the hatchery and the condition of the seedlings before they go out onto the longlines. The standard fixes the requirements for the broodstock - origin, age, size and condition - and for the seed produced from them: the size and uniformity, the morphology, the vigour and the freedom from the diseases that a hatchery can spread across a whole coast in one season. It replaces GB/T 15807-2008 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 15807-2008. 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 specifies the type of kelp [Saccharina japonica (Areschoug) Celane, C. Mayes, Druehl] [Saunders,.2006] describes the source, quality requirements, inspection rules and transportation requirements of algae and seedlings, and the corresponding inspection methods. This document applies to the quality assessment of kelp spawn and seedlings.

4 types of algae

4.1 Source Natural marine areas or original (superior) seed farms.

7 Inspection Rules

7.1 Algae Cultivation Before collecting zoospores, each spore is tested according to the indicators in sections 4.2.2, 4.2.3, and 4.3.The quality is determined by whether the test results meet the requirements. The result is considered (qualified). Any item that fails to meet the standard is deemed (unqualified).

8 Transportation Requirements

8.1 Algae Cultivation Dry transport is employed, keeping the surface of the algae leaves moist during transit and protecting them from direct sunlight, wind drying, and rain. The temperature during transport should not exceed 10°C. Ideally, the transportation time should not exceed 4 hours.

8.2 Seedlings The main method used is dry transport. After the seedling trays are removed from the seedling ponds and drained until they no longer drip, they are then transported in insulated boxes (with added insulation) depending on the length of the transport time. Transport of items such as ice bottles or ice packs. GB/T 15807-2026. Kelp spawn and seedlings ICS

51 National Standards of the People's Republic of China Replaces GB/T 15807-2008 kelp seeds and seedlings Published on 2026-02-

27 Implemented on 2026-09-

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