SC/T 9432-2019 in English
VALIDTechnical specification for the stock enhancement of hydrobios- Jellyfish
- Issued on:2019-08-01
- Implemented on:2019-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$59.00
Introduction
Interpretation of the core content of the standard
This standard aims at the full-process technical specifications for the reproduction and release of jellyfish (Rhopilema esculentum), and establishes a three-level seedling specification classification system for the first time:
| Specification type | Umbrella diameter range (mm) | Applicable scenarios |
|---|---|---|
| Small-sized seedlings (Class I) | 5≤D＜10 | Nearshore protection area |
| Medium-sized seedlings (Class II) | 10≤D＜15 | Conventional release area |
| Large size seedlings (three categories) | D≥15 | Open sea area |
Key technical requirements
Sea area selection criteria
Must meet the following requirements at the same time:
1) Meet the water quality requirements of SC/T 9401-2010
2) Historical distribution sea area and bait biomass ≥1000ind/m³
Dual control system for seedling quality
- Genomic control: Parents must be certified by SC/T 2059-2014
- Health control: Must pass 8 pathogen tests, of which Vibrio content ≤100CFU/g
Implementation suggestions
Case study in Zhoushan, Zhejiang: Medium-sized seedlings (12-14mm) were released from June to August, and the recapture rate increased to 18.7%, 6.2 percentage points higher than the traditional method.
Recommended operation process: background survey → seedling quarantine → environmental adaptation → marked release → 3-phase resource monitoring.
Analysis of standard evolution
Main improvements compared to the 2008 trial version:
1) Added seedling size classification system
2) Introduced molecular marker tracking technology
3) Established a quantitative indicator system for effect evaluation
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