Effect of restoration on zooplankton community in a permanent interdunal pond

Annales de Limnologie: International journal of limnology

Juan M. Soria¹  Carla Olmo¹  Xavier Armengol¹  Maria Anton-Pardo¹ 

[1] Department of Microbiology and Ecology, ICBIBE, University of Valencia, Spain

关键词: Diversity;    species richness;    cladocerans;    rotifers;    trophic state;   

DOI  :  10.1051/limn/2013042

学科分类：地球科学(综合)

来源: EDP Sciences

【 摘 要 】

Restoration projects in wetlands are becoming increasingly frequent to recover or to create new aquatic ecosystems, after the significant impact and high degradation they have undergone. In the present study, we focused on the changes in the zooplankton community in a permanent peridunal pond where a restoration was carried out in order to increase its surface as a main objective. For this purpose, the community was compared before and after the restoration (15 years before, the year after and between 3 and 6 years later). Significant changes in environmental variables were observed after pond restoration chlorophyll a concentration decreased and dissolved oxygen increased. Substantial modifications in the aquatic community were also observed, since species richness and diversity increased after restoration a large number of new species appeared (84%, mainly cladocerans), from external or internal sources. In addition, zooplankton community structure and composition changed from a low specific richness community copepod-dominated in density (mostly nauplii) before restoration, to another one with higher richness and different composition co-dominated in density by rotifers and nauplii, but with greater abundance of cladoceran species. All this suggests an important change in the ecological functioning of the pond, mainly produced by improvement in habitat heterogeneity and water quality after restoration.

【 授权许可】

CC BY