水生生物学报2026，Vol.50Issue(7)：1-9,9.DOI:10.3724/1000-3207.2025.2025.0392
海水酸化和暖化对脉红螺感知、运动和消化系统关键酶及其捕食行为的影响
OCEAN ACIDIFICATION AND WARMING ON KEY ENZYMES IN THE SENSORY,MOTOR,AND DIGESTIVE SYSTEMS AND PREDATORY BEHAVIOR OF THE VEINED RAPA WHELK(RAPANA VENOSA)
摘要
Abstract
This study investigated the effects of four experimental conditions-control(pH 8.1,23℃),warming(pH 8.1,25℃),acidification(pH 7.7,23℃),and combined acidification-warming(pH 7.7,25℃)-on the sensory and motor functions,key digestive enzyme activities,and subsequent predation behavior of the veined rapa whelk(Rapana venosa)toward the Manila clam(Ruditapes philippinarum).The results revealed that under individual acidification,key enzyme activities associated with sensory perception remained unaffected,whereas those related to motor function decreased and digestive enzyme activities increased.Under individual warming,sensory enzymes showed no signifi-cant change,but both motor and digestive enzymes were elevated.Acidification and warming exhibit a negative syner-gistic effect when combined,showing an inhibitory impact on the activities of three key system enzymes.Changes in enzymatic activities further led to modifications in the sensory,motor,and digestive functions of R.venosa,which consequently influenced its foraging performance:under acidification,the encounter rate with prey did not differ signifi-cantly,yet the predation rate declined;under warming,the encounter rate increased without a significant change in predation rate;under combined acidification-warming,both encounter and predation rates decreased markedly.These results indicate that ocean acidification and warming may affect the predatory behavior of R.venosa by modulating the activity of key enzymes in its sensory,locomotor,and digestive systems.This study provides a scientific basis for predicting population dynamics and the stability of the benthic"whelk-clam"food web,and offers theoretical support for optimizing gastropod aquaculture,enhancing shellfish resource restoration,and promoting sustainable utilization.关键词
海水酸化和暖化/腹足类/捕食行为/生理响应/脉红螺Key words
Seawater acidification and warming/Gastropods/Predatory behavior/Physiological response/Rapana venosa分类
生物科学引用本文复制引用
李涛,于正林,丛潇,许家磊,庞磊,单恩翠,韩国栋,袁秀堂..海水酸化和暖化对脉红螺感知、运动和消化系统关键酶及其捕食行为的影响[J].水生生物学报,2026,50(7):1-9,9.基金项目
国家自然科学基金面上项目(42576153) （42576153）
黄河三角洲人才工程产业领军人才项目(袁秀堂)资助[Supported by the National Natural Science Foundation of China(42576153) （袁秀堂）
the Industry Leading Talent Project of the Yellow River Delta Talent Engineer-ing(Xiutang Yuan)] （Xiutang Yuan）
