摘要
浮游动物群落研究在生态学研究中有承上启下的作用。本文选取不同的浮游动物种和不同的发育期作为分类依据 ,用聚类分析和分布分析的方法对南极普里兹湾海区浮游动物的群落结构进行了分析。普里兹湾海区夏季浮游动物群落可以划分为三种地理群落 :北部以纽鳃樽为特有种的被囊群落、中部磷虾群落和以晶磷虾为特有种的近岸群落。通过观察和指示种分析 ,结果表明 :被囊和磷虾群落之间的指示种依次是纽鳃樽、毛颚类幼体、巨锚哲水蚤和毛颚类成体 ;被囊和近岸群落之间的指示种依次为巨锚哲水蚤、毛颚类成体、戈氏长腹水蚤的晚期桡足幼体和虾的原蚤状幼体 ;在对磷虾和近岸群落的分析中晶磷虾是最明显的指示种 ,其次是磷虾的无节幼体和隆剑水蚤。
Community, as a structure connecting ecosystem and individuals, is considered an important part of ecology. Different species and development stages in the research were used in our classification to the sampling stations with clustering analysis and multi dimension scaling, through which three geographic communities were illuminated: Salp community dominated by Salp thompni in northern area; Near shore community dominated by Euphausia crystallorophias in the south; and Krill community located between the two communities above. Indicator species method was then used between each two communities to find out which species or stages differ most. Results show: Rhincalanus gigas , adult Cheatognath, late stages of Metridia gerlachei and calyptopis of Euphausiidae are indicators between Salp and Near shore community; between Krill and Salp community the indicators are Salp thompni , adult and larvae of cheatognath and R.gigas ; the most notable indicator between Krill and Near shore community was E. crystallorophias, then nuaplii of Euphausiidae and Onceae conifera .
出处
《极地研究》
CAS
CSCD
2000年第2期89-96,共8页
Chinese Journal of Polar Research
基金
中国科学院 95重大 A( K2 951 -A1 -2 0 5)
国家科技攻关!( 98-92 7-0 1 -0 2 )资助项目
关键词
生态群落
普里兹湾
浮游动物群落
分布
结构
community,salp,krill, Euphausia crystallorophias ,indicator specie.
