Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Green, Andy J.; Fuentes, Cristina; Moreno‐Ostos, Enrique; Silva, S.L. Rodrigues de

doi:10.1051/limn/2005010

Cited by 31 publications

(21 citation statements)

References 25 publications

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“…In addition, elevated salinity can reduce the zooplankton growth rate due to osmotic stress in salt-sensitive taxa (Table S3). Similarly, in Spain and France, salinity appears to be the main environmental factor structuring the zooplankton and invertebrate communities in lakes and ponds (Green et al, 2005;Boix et al, 2008;Waterkeyn et al, 2008;Brucet et al, 2009). Not only Mediterranean regions suffer from increased salinity due to climate change.…”

Section: Effects Of Changes In Salinity/conductivitymentioning

confidence: 99%

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

et al. 2015

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According to the Intergovernmental Panel on Climate Change report released in September 2014, unprecedented changes in temperature and precipitation patterns have been recorded globally in recent decades and further change is predicted to occur in the near future, mainly as the result of human activity. In particular, projections show that the Mediterranean climate zone will be markedly affected with significant implications for lake water levels and salinity. This may be exacerbated by increased demands for irrigation water. Based on long-term data from seven lakes and reservoirs covering a geographical gradient of 52°of latitudes and a literature review, we discuss how changes in water level and salinity related to climate change and water abstraction affect the ecosystem structure, function, biodiversity and ecological state of lakes and reservoirs. We discuss mitigation measures to counteract the negative effects on ecological status that are likely to result from changes in climate and water abstraction practices. Finally, we highlight research required to improve knowledge of the impacts of anthropogenically induced changes on lake water level and consequent changes in salinity.

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Section: Effects Of Changes In Salinity/conductivitymentioning

confidence: 99%

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

et al. 2015

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“…In our case, the value of ponds for waterbirds conservation is higher in the breeding season, as a consequence of the characteristics of the climate in the zone. In summer, the study area suffers from long dry periods which drastically decrease or even dries completely the water reserves at natural wetlands (Green et al 2005). Subsequently, waterbirds may depend upon alternative habitats.…”

Section: Conservation Implicationsmentioning

confidence: 99%

Agricultural ponds as alternative habitat for waterbirds: spatial and temporal patterns of abundance and management strategies

2009

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The progressive lost of natural wetlands as a consequence of human activities has lead to the use of new habitats by the species linked to water presence. In Southeast Spain, thousands of irrigation ponds have been lately constructed to store water for agriculture and are used by waterbirds as an alternative habitat. For this study, breeding and wintering waterbirds were counted in a subset of irrigation ponds between 2002 and 2007. Breeding communities were more abundant than wintering communities, but they presented a similar richness and diversity. The ponds were selected by waterbirds according to their characteristics, and breeding communities were more selective than wintering communities. Our results enhance the importance of pond size (area), connectivity (distance to the nearest wetland) and habitat quality (resource offer and construction material) in the pond selection process. The presence and design of these impoundments could be playing a crucial role for some waterbirds species. Therefore, the long-term information provided here can be useful for establishing management strategies for these artificial wetlands.

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“…Applying this data to the compared tubes, the Green tube is most probably inefficient in the accurate and proportional sampling of the water layer that it was used in, from 0 to 30 cm deep due to its diameter of 16 cm, too big for this depth. This explains why the authors (Green et al, 2005) have only found floating ephippia and very little live zooplankters. Meanwhile, the Limnos tube was effective for the sampling described by Rahkola et al (1994) having a diameter of 17.2 cm and being used at a depth of 1 m. By intersecting the abscissa corresponding to the Green tube with the reference line, we notice that this tube is efficient for sampling zooplankters swimming at speeds of over 1 cm/s in water layers situated at more than 43 cm.…”

Section: Resultsmentioning

confidence: 97%

“…Another type of sampling tube used in zooplankton distribution studies is the Green -Fuentes tube, described by Green et al (2005) in their study on the zooplankton from the brackish lakes from eastern Spain. The Green -Fuentes tube has a 16 cm inner diameter and it was used for the sampling of superficial layers of water of maximum 30 cm deep.…”

Section: Introductionmentioning

confidence: 99%

The incidence of zooplankton speed and sampling depth on the sampling efficiency. Preliminary comparative data

Irimia-Hurdugan¹,

Năzăreanu²

2011

Travaux Du Muséum National d'Histoire Naturelle "Grigore Antipa"

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Abstract. The efficiency of the tubes, traps and nets is varying according to the type of the studied lake and the type of applied methodology. Thus, from one study to another, the obtained data can vary within certain limits for the same water body and season. The inherent variability led to some correlation studies between used methodologies in order to corroborate the results and render them comparable. The present study is referring to the comparative analysis of the efficiency of the tubes used for the sampling of the superficial layers in the stagnant water bodies. The Limnos and Green tubes have been compared to sampling tubes of different diameters. The water speed at the entrance in the tube is calculated and compared with the swimming speed of cladocerans (Simocephalus vetulus juveniles and adult individuals) and copepods (Cyclops sp. juveniles and adult individuals). It is demonstrated that the diameter of the tube used for sampling influences the sampling efficiency especially for the zooplankton species that are actively swimming in the water body. The present study sets the basis for a larger methodology study that, by integrating statistical analysis and hydrodynamics would establish an unified methodology for limnologists worldwide.

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Factors influencing cladoceran abundance and species richness in brackish lakes in Eastern Spain

Cited by 31 publications

References 25 publications

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

Agricultural ponds as alternative habitat for waterbirds: spatial and temporal patterns of abundance and management strategies

The incidence of zooplankton speed and sampling depth on the sampling efficiency. Preliminary comparative data

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