What can resting egg banks tell about cladoceran diversity in a shallow subtropical lake?
Dormant stages (“resting eggs”) produced by cladocerans can persist for long periods of time in sediments and restore populations once the environmental conditions become favorable again. Lake Blanca, a subtropical shallow eutrophic lake, hosts a cladoceran community dominated by small-sized species...
Saved in:
Published in: | Hydrobiologia Vol. 798; no. 1; pp. 75 - 86 |
---|---|
Main Authors: | , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Cham
Springer International Publishing
01-09-2017
Springer Springer Nature B.V |
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Dormant stages (“resting eggs”) produced by cladocerans can persist for long periods of time in sediments and restore populations once the environmental conditions become favorable again. Lake Blanca, a subtropical shallow eutrophic lake, hosts a cladoceran community dominated by small-sized species. Previous studies on zooplankton resting eggs suggested that the cladoceran genera
Daphnia
and
Simocephalus
were present, but they had never been found before in water samples. In the present study, we compared a biweekly active community sampling with the resting egg bank (passive cladoceran community) from littoral and pelagic zones. Moreover, we tested the amount of samples required to have a representative reconstruction of the diversity in both compartments (water and sediment). Lake Blanca showed a relatively high cladoceran species richness (24) in the water column, with rapid temporal replacement. Several species were present in water samples during short temporal windows; therefore, to detect these species a strong sampling effort in terms of temporal frequency and spatial distribution was required. Contrary to our expectations, resting egg community showed a lower diversity than the active community; however, we demonstrated that the analysis of resting egg bank composition can help detect general community structure patterns. |
---|---|
ISSN: | 0018-8158 1573-5117 |
DOI: | 10.1007/s10750-016-2654-5 |