Life table responses and population dynamics of four cladoceran zooplankton during a reservoir flood |
| |
Authors: | Threlkeld Stephen T. |
| |
Affiliation: | Biological Station and Department of Zoology, University of Oklahoma Kingston, OK 73439, USA |
| |
Abstract: | The life table responses and population dynamics of four cladocerans(Ceriodaphnia lacustris, Daphnia parvula, Diaphonosoma leuchtenbergianumand Moina micrura) were measured during a flood of a large turbidreservoir (Lake Texoma, Oklahoma-Texas). Mean recruitment andlongevity of Ceriodaphnia and Daphnia in life table experimentswere reduced during the flood when abundant silt particles andpicoplankton (<2 µm) replaced algal particles in thewater column. Individual growth rates measured in the life tableexperiments were slower for Ceriodaphnia during the flood. Fieldcollections revealed that Ceriodaphnia and Daphnia populationsdeclined immediately after the arrival of turbid water, andremaining females carried fewer eggs. Populations of Moina andDiaphanosoma increased during the flood, and life table experimentsshowed that these species were able to grow well in silt-ladenwater. |
| |
Keywords: | |
本文献已被 Oxford 等数据库收录! |
|