HUFA metabolism patterns of brine shrimp <italic style="font-style: italic">Artemia tibetiana</italic> at different temperatures

Wei XIE; Honggang DENG; Yulong LU; Meirong GAO; Zhenqian WANG; Kai HE; Hongchi LI; Kaiyu ZHAO; Liying SUI; Chi ZHANG

doi:10.1007/s00343-026-5082-z

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HUFA metabolism patterns of brine shrimp Artemia tibetiana at different temperatures

Updated：2026-07-20

- HUFA metabolism patterns of brine shrimp Artemia tibetiana at different temperatures
- Journal of Oceanology and Limnology Pages: 1-11(2026)
- Affiliations：
  
  1.Asian Regional Artemia Reference Center, Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Tianjin University of Science and Technology, Tianjin 300357, China
  2.Institute of Fisheries Science, Xizang Academy of Agricultural and Animal Husbandry Sciences, Lhasa 540100, China
  3.International Artemia Aquaculture Consortium (IAAC), Network of Aquaculture Centres in Asia-Pacific, Bangkok 10900, Thailand
- Author bio：
  
  suily@tust.edu.cn
  zc0891@163.com
- Funds：
- DOI：10.1007/s00343-026-5082-z
  CLC：
- Received：20 March 2025，
  
  Online First：20 July 2026，
- Accepted：
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XIE Wei,DENG Honggang,LU Yulong,et al.HUFA metabolism patterns of brine shrimp Artemia tibetiana at different temperatures[J].Journal of Oceanology and Limnology,
DOI：

XIE Wei,DENG Honggang,LU Yulong,et al.HUFA metabolism patterns of brine shrimp Artemia tibetiana at different temperatures[J].Journal of Oceanology and Limnology, DOI：.

摘要

Abstract

Among diverse

Artemia

strains

Xizang

Artemia

exhibits higher baseline HUFA content

containing a rich eicosapentaenoic acid (EPA) and a minor amount of docosahexaenoic acid (DHA). Nevertheless

the content of DHA in Xizang

Artemia

remains insufficient for marine aquatic organisms

particularly marine fish. Moreover

the enrichment efficiency and metabolism of highly unsaturated fatty acid (HUFA) in Xizang

Artemia

are not yet fully elucida

ted. This research investigated the survival and HUFA metabolic rates of

Artemia

tibetiana

during the enrichment process with DHA-rich emulsified fish oil and in the subsequent 6

and 72 h starvation at 14

and 24 °C

in comparison with

Artemia

franciscana

. The findings indicated that

tibetiana

achieved the highest DHA content of 9.78 mg/g dry weight (DW) after 36-h enrichment

whereas

franciscana

reached its peak DHA content of 31.40 mg/g DW after 24-h enrichment. After 72-h starvation

the DHA content in both species declined rapidly

with a metabolic rate exceeding 70%. Both species exhibited relatively lower metabolic rates for EPA and arachidonic acid (ARA)

less than 50% and 38% respectively. After 72-h starvation

the DHA metabolic rates of

tibetiana

were significantly lower than those of

franciscana

at the three temperatures (

0.05)

demonstrating species-specific characteristics. Two-factor analysis of variance revealed that the metabolic rates of ARA

EPA

and DHA increased significantly with the increased starvation temperature and the prolonged starvation time (

0.001). In conclusion

the starting enrichment time and enrichment duration should be determined according to the

Artemia

species/strains in order to guarantee the enrichment efficiency. Additionally

the remaining HUFA-enriched

Artemia

should be stored at a lower temperature to minimize the metabolic consumption of HUFA and ensure a higher survival rate. This study offers a reference for studying the HUFA metabolic pattern of

Artemia

and provides guidance for the application of

Artemia

enrichment and the preservation of HUFA-enriched

Artemia

in hatcheries.

关键词

Keywords

references

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⁰

HUFA metabolism patterns of brine shrimp Artemia tibetiana at different temperatures

DOI：10.1007/s00343-026-5082-z

摘要

Abstract

关键词

Keywords

references