Effect of temperature and food concentration in two species of littoral rotifers

被引：48

作者：

Pérez-Legaspi, IA ^{[1
]}

Rico-Martínez, R ^{[1
]}

机构：

[1] Univ Autonoma Aguascalientes, Ctr Basico, Dept Quim, Aguascalientes 20100, Ags, Mexico

来源：

HYDROBIOLOGIA | 1998年 / 387卷 / 0期

关键词：

Lecanidae; life-table; mortality; reproduction rate; survivorship;

D O I：

10.1023/A:1017099906853

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

We performed life-table experiments with two species of the littoral rotifers Lecane luna (O.F. Muller, 1776) and Lecane quadridentata (Ehrenberg, 1832). Three different temperatures (20, 25 and 30 degrees C) and food concentrations of Nannochloris oculata (1x10(7), 5x10(6), and 1x10(6) cells ml(-1)) were investigated. We found important differences between both species in all the treatments regarding offspring sizes, hatching percentages, life span and reproductive rates. Our data on hatching percentages of asexual eggs suggested that the optimal temperature for both species is in the 20-25 degrees C range. On the other hand, reproductive data placed the optimal temperature near 25 degrees C. This information can be used to develop aquatic toxicology tests with littoral species.

引用

页码：341 / 348

页数：8