耳螺在中国海的北扩:三种耳螺在我国黄海的报道(腹足纲:耳螺科)  

THE NORTHWARD SHIFT IN CHINA WATERS OF THREE ELLOBIID SPECIES FOUND IN THE YELLOW SEA(GASTROPODA,ELLOBIIDAE)

作　　者：张树乾[1] 张素萍[1] 张均龙[1] ZHANG Shu-Qian;ZHANG Su-Ping;ZHANG Jun-Long(Laboratory of Marine Organism Taxonomy and Phylogeny,Qingdao Key Laboratory of Marine Biodiversity and Conservation,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China)

机构地区：[1]中国科学院海洋研究所海洋生物分类与系统演化实验室、青岛市海洋生物多样性与保护重点实验室,山东青岛266071

出　　处：《海洋与湖沼》2024年第4期1048-1056,共9页Oceanologia Et Limnologia Sinica

基　　金：国家自然科学基金项目,42090044号;中国科学院战略性先导科技专项,XDB42000000号;泰山学者工程,tsqn202306280号。

摘　　要：2020~2023年,作者在我国黄海沿岸潮间带进行软体动物多样性调查时获取到多个耳螺科标本,通过形态学比较和研究,鉴定为3属3种,分别为:中国耳螺Ellobium chinense(Pfeiffer,1855)、赛氏女教士螺Pythia cecillii(R.A.Philippi,1847)和教徒肋耳螺Laemodonta exaratoides Kawabe,1992。中国耳螺和赛氏女教士螺采自江苏盐城,教徒肋耳螺采自青岛和大连。作者对这3种耳螺进行了分类学描述和报道,其中教徒肋耳螺在我国沿海系首次报道,为中国新记录种。作者基于COⅠ、16S rRNA和H3基因对教徒肋耳螺进行了系统发育分析,确定了该种在耳螺科中的分类地位。耳螺科是典型的暖水性类群,在我国主要见于热带和亚热带海域,之前仅有中国耳螺可向北扩散至黄海南部。该研究中3种耳螺在黄海的发现表明该海域内的耳螺种类在不断增多,且出现了明显的北扩现象。这种现象很可能与全球变暖导致的黄海水温持续升高有关。研究结果不仅丰富了中国海软体动物多样性研究内容,也为更好地理解气候变化背景下软体动物的扩布提供了新的数据和资料。During investigations on the intertidal zone of the Yellow Sea(2020~2023),several ellobiid gastropods were sampled.Morphological observations of the specimens suggest that they represent three species,including Ellobium chinense(Pfeiffer,1855)and Pythia cecillii(R.A.Philippi,1847)from Yancheng in Jiangsu,and Laemodonta exaratoides Kawabe,1992 from Qingdao in Shandong,and Dalian in Liaoning.Of them,Laemodonta exaratoides Kawabe,1992 is a species new to China.In this study,the specimens were described and illustrated based on shell morphology.The systematic position of Laemodonta exaratoides Kawabe,1992 was clarified by reconstructing the Bayesian phylogenetic tree based on two mitochondrial(COⅠ,16S rRNA)and nuclear(H3)genes.Ellobiidae is a group distributed mainly in the tropical and subtropical seas.In China,only Ellobium chinense was reported to spread northward to the southern Yellow Sea.The three ellobiid species recorded in this study shows that the number of ellobiids in the Yellow Sea is constantly increasing and their distribution range has significantly expanded northward.This phenomenon may be related to the continued increase in the seawater temperature of the Yellow Sea caused by global warming.The results expand diversity knowledge of molluscs from Chinese waters,and provide new information for better understanding of the distribution expansion of molluscs under the background of climate change.

关 键 词：耳螺科 肋耳螺属 黄海 印太交汇区 新记录 气候变化 

分 类 号：Q959.212.5[生物学—动物学]