武汉东湖桡足类生物量及生产量的初步研究  

A PRELIMINARY STUDY ON [BIOMASS AND PRODUCTION OF COPEPODA IN LAKE DONGHU, WUHAN

作　　者：陈雪梅[1] 

机构地区：[1]中国科学院水生生物研究所

出　　处：《水生生物学集刊》1985年第2期144-158,共15页

摘　　要：本文主要论述1980—1982年武汉东湖桡足类生物量及生产量的测算结果。三周年来在东湖Ⅰ、Ⅱ采样站上共观察到5种剑水蚤:广布中剑水蚤(Mesocyclops leuckarti)、近邻剑水蚤(Cyclops vicinus vicinus)、透明温剑水蚤(Thermocyclops hyalinus)、台湾温剑水蚤(Thermocyclops taihokuensis)、锯缘真剑水蚤(Eucyclops serrulatus)和5种哲水蚤:球状许水蚤(Schmackeria forbesi)特异荡镖水蚤(Neutrodiaptomus incongruens)、右突新鏢水蚤(Neodiaptomus schmackeria)、中华原鏢水蚤(Eodiaptomus sinensis)、汤匙华哲水蚤(Sinocalanus dorrii)。其总年平均生物量为321.74毫克干重/平方米。其中剑水蚤为194.70毫克干重/平方米,占60.51％;哲水蚤为127.04毫克干重/平方米,占39.49％。总年生产量为16.959克干重/平方米。其中剑水蚤为11.225克干重/平方米,占66.19％;哲水蚤为5.734克干重/平方米,占33.81％。年P/B比为52.55;其中剑水蚤为57.63,哲水蚤为46.02。各发育阶段的年平均生物量以桡足幼体最高,其次为无节幼体,卵最低。年生产量则以无节幼体最高,其次为桡足幼体,卵最低。从各种类所占总年平均生物量、年生产量的百分比值来看,广布中剑水蚤的比值最大,其次为球状许水蚤、近邻剑水蚤和特异荡鏢水蚤。This paper reports the results of investigations on biomass and production of 5 species of Cyclopids, 5 species of Calanoids at the two sampling stations in Lake Donghu, Wuhan, during 1980—1982. The total annual average biomass of Copepoda was 321.74 mg dry wt. m^(-2), among which Cyclopoida was 194.7 mg dry wt. m~)-2) and Calanoida was 127.04 mg dry wt. m^(-2), being 60.51% and 39.49% of the total, respectively. The total annual production for Copepoda was 16.959 g dry wt. m^(-2), among which Cyclopoida was 11.225 g dry wt. m^(-2), and Calanoida was 5.734 g dry wt. m^(-2), contributing 66.19% and 33.81% to the total respectively. the annual P/B ratio of Copepoda was relatively high, reaching 52.55. M. leuckarti ranked first in the biomass and production, being 31.71% of the total annual average biomass and 49.82% of the total annual production for Copepoda, and it was followed by S. forbesi, C. vicinus vicinus and N. incongruens in turn. The proportion of the total production contributed by the various development stages was also determined, and nauplius was found to be more important, on average,.contributing 45.65% of the total.

关 键 词：武汉东湖 桡足类 生物量 生产量 

分 类 号：Q959.223.3[生物学—动物学] Q178.513