杭州湾迅速生长期海蜇生长特性及其与表层水温的关系

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中图分类号：S932.8;P7 文献标志码：A 文章编号：105-9857（2025）01-012-08

Abstract：Inordertoinvestiatetherelationshi betwenthe rowthcharacteristicsofRhopilemaesculentaandsurfacewatertemperatureduringtherapidgrowthperiodin HangzhouBay， theauthorsconductedasurveyofRhopilemaesculenta biologyandenvironmentalfactorsin HangzhouBayinJune—July202 .Theresultsshowedthat：（1）TheumbreladiameterofRhopilemaesculentarangedfrom45to 650mm ，theaverageumbreladiameterwas 327.55mm ; thebodymas ofRhopilemaesculentarangedfrom9to 18260g ，theaveragebodymas was 2 748.21g .（2）Therelationshipbetwenumbreladiameterandbodymas wasgivenby W= 1.578 5×10-5UB3.1208（R2=0.975 4，n=1 601）. .（3）Withtheincreaseofdate，theaverageumbreladiameterofRhopilemaesculentaincreasedfrom 104.33mm to 361.20mm andtheaverage surfacewatertemperatureincreasedsignificantlyfrom 21.69∘C to 27.94∘C .（4）Theaverage umbreladiameterandaveragesurfacetemperatureduringtheinvestigationperiodwerefited， andtherelationshipbetwenthem wasasfolows UB=6.07ST2-259.62ST+2880.32 R2= 0.985）.（5）Aftertheopeningofthefishery，theumbreladiameterofRhopilemaesculenta rangedfrom15to 650mm withanaverageumbreladiameterof 391.96mm ;thebodymas rangedfrom40to 18260g withanaveragebodymas of 3857.60g .Theumbreladiameterand bodymas ofRhopilemaesculenta gradualyincreasedwiththedate.Thisarticlestudiedthe growthcharacteristicsofRhopilemaesculentaanditsrelationshipwithsurfacewatertemperatureduringtherapidgrowthperiodinHangzhouBay，whichcanprovideareferencebasisfor scientificmangementofRhopilemaesculentafishingproductionduringthesummerfishingmoratoriuminHangzhouBayinthefuture.

Keywords：HangzhouBay，Rhopilemaesculenta，Umbreladiameter，Bodymas，Environmentalfactors

0 引言

海蜇（Rhopilemaesculenta）属腔肠动物门、钵水母纲、根口水母目、根口水母科、海蜇属，是一种经济价值较高的大型海洋浮游动物，栖息于近岸海淡水交汇处，尤其喜居于水深 5～20m 的河口水域，我国南北沿海均有分布 [1-3] 。（剩余8906字）