Vertical variability of pelagic zooplankton fauna in deep Latvian lakes, with some notes on changes in ecological conditions

  title={Vertical variability of pelagic zooplankton fauna in deep Latvian lakes, with some notes on changes in ecological conditions},
  author={Inta Dimante-Deimantovica and A. Skute and Renāte {\vS}kute},
  journal={Estonian Journal of Ecology},
Vertical structure of zooplankton communities from five deep Latvian lakes during the late summer and early autumn season was analysed. Changes in species composition, abundance, and dominant species assemblages were assessed in relation to temperature, oxygen, pH, chlorophyll a, oxidation reduction potential, and conductivity. Where possible, comparison with historical data was made. No significant changes of ecological conditions and annual dynamics of zooplankton diversity and abundance… 

Figures and Tables from this paper

Study of vertical distribution dynamics of zooplankton in a thermally stratified warm monomictic lake of Kashmir Himalaya

In the present study, we investigated how stratification patterns and the related physico‐chemical characteristics impact the vertical distribution of zooplankton community during the two consecutive


According to the Latvian environmental legislation, lakes with high water quality and suitability for such protected salmon fish species as vendace Coregonus albula (L.) and whitefish Coregonus

Zooplankton Community Responses to Oxygen Stress

Recent changes in climate and eutrophication have caused increases in oxygen depletion in both freshwater and marine ecosystems. However, the impact of oxygen stress on zooplankton, which is the

Occurrence of Cladocera and the genetic diversity of Daphnia cucullata in the pelagic zone of Latvian salmonid lakes

It is found that Daphnia cucullata is among dominants in the Cladoceran community of Latvian salmonid lakes and plays an essential role in the transformation of substances and energy in water bodies.

Bosmina (eubosmina) coregoni baird, 1857 (crustacea, branchiopoda, anomopoda): New planktonic invader in the iberian peninsula

The maximum abundance of this species occurred during the winter period, and it is plausible to consider that waterfowl migration and the presence of recreational boats might be the dispersion vector ofThis species in Iberian Peninsula.



Zooplankton seasonal dynamics in the neighbouring lakes Takvatn and Lombola (Northern Norway)

The main events in zooplankton seasonal succession were restricted to the short period of stratification and were similar in the two lakes.

Zooplankton distribution related to environmental factors and phytoplankton in a shallow tropical lake (Lake Guiers, Senegal, west Africa)

The chemical and biological characteristics of Lake Guiers (Senegal) have changed markedly since the impoundment of the Senegal River (Diama and Manantali dams) and subsequent development of

Structure and dynamics of zooplankton in a semi-arid wetland, the National Park Las Tablas de Daimiel (Spain)

Zooplankton structure and dynamics were studied in a freshwater wetland subject to strong hydrologic fluctuations. This wetland underwent a six-year drought that terminated at the end of 1996. At

Increased abundance and depth distribution of pelagic crustacean zooplankton during hypolimnetic oxygenation in a deep, eutrophic Alberta Lake

Since June 1988, the north basin of eutrophic Amisk Lake has been treated by hypolimnetic oxygenation, while the south basin has served as a reference, and there were no apparent treatment effects on biomass, abundance, or distribution of zooplankton in surface waters.

A Short-Term Study of Vertical and Horizontal Distribution of Zooplankton During Thermal Stratification in Lake Kinneret, Israel

It is indicated that zooplankton spatial distribution in Lake Kinneret during the period of thermal stratification was related to physicochemical, food and predation factors, manifested differently along the vertical and nearshore–offshore gradients.

Seasonal changes in the abundance and distribution of planktonic rotifers in Grasmere (English Lake District)

Major changes occurred between 1971 and 1972 when Asplanchna priodonta, Kellicottia longispina, Conochilus unicornis and Filinia terminalis increased in abundance, whilst Keratella quadrata.

Vertical distribution of pelagial zooplankton in a middle-sized dimictic valley reservoir

Previous assumptions about the high density of zooplanktivorous fish in Dubník II reservoir are supported by the fact that these small cladocerans are represented by smaller individuals in the upper layers and bigger individuals in deeper layers.

The vertical distribution of zooplankton in brackish meromictic lake with deep-water chlorophyll maximum

The dynamics of the vertical stratification of physical, chemical and biological factors in a brackish meromictic lake with a deep-water chlorophyll maximum during the growing season is examined and how the vertical distribution of these factors influences the Vertical distribution of the zooplankton community is estimated.

Seasonal vertical distribution and diel migration of zooplankton in a temperate stratified lake

The DVM patterns of the crustaceans indicate that the metalimnion acts probably as a daylight refuge against predation by Atherina boyeri, which is the dominant planktivorous fish in the lake.