下浒海滨岩相潮间带底栖动物群落及其生态特征  

Benthic community and ecological characteristics in the rock intertidal zone of Xiahu shore

作　　者：李进寿 阮俊峰 罗芬 LI Jin-shou;RUAN Jun-feng;LUO Fen(School of Life Science,Ningde Normal University,Ningde,Fujian 352100,China)

机构地区：[1]宁德师范学院生命科学学院

出　　处：《宁德师范学院学报（自然科学版）》2019年第4期390-394,共5页Journal of Ningde Normal University(Natural Science)

基　　金：福建省科技厅引导性项目（2017N0027）

摘　　要：2017年夏季对下浒海滨岩相潮间带底栖动物群落进行调查研究,共发现47种底栖动物,其中固着或附着生活的32种,自由生活的15种,具有显著的垂直分布特征;各潮区底栖动物多样性呈低潮区(42种)>中潮区(36种)>高潮区(5种)的分布特征.高潮区形成短滨螺-中间拟滨螺生物带,中潮区形成白脊藤壶-白条地藤壶生物带、黑荞麦蛤生物带与网纹藤壶生物带,低潮区形成以网纹藤壶占绝对优势的生物带.高潮区无显著优势种群;中潮区以网纹藤壶、黑荞麦蛤、白脊藤壶、白条地藤壶与红条毛肤石鳖为优势种群,优势度分别为0.4304±0.0370,0.2101±0.0028,0.1607±0.0220,0.1402±0.0140和0.0600±0.0097,其中网纹藤壶种群优势度显著高于其他底栖动物(P<0.05),黑荞麦蛤、白脊藤壶和白条地藤壶的优势度也显著高于红条毛肤石鳖(P<0.05);低潮区以网纹藤壶占绝对优势,种群优势度达0.6802±0.1060,显著高于其他底栖动物(P<0.05).综上调查结果显示下浒海滨岩相潮间带生物多样性丰富,生态环境良好.In the summer of 2017,we investigated the benthic community in the rocky intertidal zone of Xiahu shore.A total of 47 species of zoobenthos were found,among which 32 species live in fixation or attachment and 15 species live freely.The diversity of zoobenthos in the intertidal zone was presented in a scale of low-tidal region(42 species)>mid-tidal region(36 species)>high-tide zone(5 species).The Creatures zone composed mainly of Littoraria brevicula-Littorinopsis intermedia in high-tidal region,B.albicostatus-Euraphia withersi and Xenostrobus atrata-B.reticulatus Utinomi on mid-tidal region,and low-tide region formed in the B.reticulatus Utinomi dominant biomes.The climax area had no significant advantage in population.In the mid-tidal zone,the B.reticulatus Utinom,X.atrata,B.albicostatus,E.withersi and Acanthochiton rubrolineatus were the dominant species,and the dominance were 0.4304±0.0370,0.2101±0.0028,0.1607±0.0220,0.1402±0.0140 and 0.0600±0.0097 respestively.The B.reticulatus Utinomi species dominance was significantly higher than that of other benthic animal(P<0.05),X.atrata,B.albicostatus,E.withersi was significantly higher than that of A.rubrolineatus(P<0.05);low-tide region to B.reticulatus Utinomi dominant population dominance was 0.6802±0.1060,significantly higher than that of other benthic animal(P<0.05).The results show that the intertidal zone of Xiahu coastal rock facies is rich in biodiversity and has a good ecological environment.

关 键 词：底栖动物群落 生态特征 岩相潮间带 下浒 

分 类 号：Q958.15[生物学—动物学]