基于环境DNA宏条形码技术的大洋河下游鱼类多样性研究

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中图分类号S932. 文献标识码A文章编号 0517-6611（2025）12-0059-06

doi：10.3969/j.issn.0517-6611.2025.12.015

开放科学（资源服务）标识码（OSID）：

Study on the Fish Diversity in the Downstream of Dayang River Based on Environmental DNA Metabarcoding Technology ZHUChun-yue，YANGPei-min，LIUZhong-hangetal（LiaoningItituteofFreshwaterFisheries/LiaoningKeyLaboratoryofquatic Animal Diseases Control，Liaoyang，Liaoning111000）

AbstractInodetounderstandthspecicompositooftifisspecisommunitisandprotectheirdiversityintedowsteamof DayangRiverviroetalDmetabarodinehgasusdtoaletespisdvesityofsiedostreaoagi er.Throughthecolletionandhigh-troughputsequencingaalysisofDA（eDNA）samplesfromthedownstreamenvironentoftheDayang River，atotalofsiesofsectediplsfrotreaftaoitga，， 9orders.Amongtherders，Cypriniforeshdthelgestspeiesumber34speies）folowdbyGobfos（1Ospecies）llfs speciesHophalmchorinlematocesdilssdgheratiedaethotaleatiea 83.85% .Overall，thediversiyandabundanceoffshatestuarinesites（K）werelowerhilethoseinLingdongsection（S）wereighr.Comparedwithtradioalsiods，oealetabarodinhdthdaagofstigssiivitydiou beusedaasupnttodalsysouesuryTsdyouldeichtesructuraladfucioaloaoofsoucs inthlowerrachsofthengRivendproidesicfaiosuprtsforthsteatcaagentdesatoofishc in this water area.

KeyWordsEnvironmental DNA（eDNA） technology;Fish diversity;Dayang River

大洋河发源于辽宁省岫岩县偏岭乡一棵树岭南侧，流经岫岩县，至东港市黄土坎入黄海[1]。（剩余11501字）