Impact of stocking density on oxidative stress, digestive enzyme activity, ATPase function, and transcriptomic changes in juvenile Crimson snapper (Lutjanus erythropterus) during long-hour transportation
文献类型： 外文期刊
作者： Su, Jiaqi 1 ; Guo, Yu 1 ; Li, Jiayang 1 ; Tan, Karsoon 2 ; Qin, Chuanxin 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
2.Beibu Gulf Univ, Coll Marine Sci, Beibu Gulf Ocean Dev Res Ctr, Guangxi Key Lab Beibu Gulf Biodivers Conservat, Qinzhou, Guangxi, Peoples R China
3.Sanya Trop Fisheries Reseaech Inst, Sanya 572000, Peoples R China
4.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery R, Sanya 572018, Peoples R China
关键词： Lutjanus erythropterus; Road transport; Optimum larvae density; Oxidation stress; Digestive enzymes; ATPases
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN： 2352-5134
年卷期： 2025 年 41 卷
页码：
收录情况： SCI
摘要： Fish farms are often situated far from hatcheries, making the transport of fish larvae or juveniles from hatcheries to rearing farms a critical process. While optimal stocking densities for the transporting some marine species are established, there is limited information on the transportation of hatchery-produced juvenile Crimson snapper (Lutjanus erythropterus). This study aimed to assess how stocking density affects antioxidative stress, digestive enzymes, ATPases, and the transcriptome of Lutjanus erythropterus during long-hour transportation. The results revealed that water quality deteriorated as stocking density of Lutjanus erythropterus increased. At low to moderate stocking densities (20-60 g/L), L. erythropterus adapted environmental stress by boosting total antioxidant capacity, alpha-amylase activity, and ATPases activities. However, at stocking densities > 80 g/L, significant oxidative stress occurred, with inhibition of antioxidant enzymes, alpha-amylase activity, and ATPases activities. Transciptomic analysis supported these biochemical findings, with KEGG enrichment revealing that differentially expressed genes were linked to anti-inflammatory and metabolic pathways, especially at high densities. In conclusion, 60 g/L is the optimum stocking density for L. erythropterus juveniles during road transport, while 80 g/L being a feasible but stressful alternative. These findings provide valuable insights for enhancing transportation practices to reduce stress on L. erythropterus juveniles in a cost-effective manner.
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