Effects of salinity and water temporality on zooplankton community in coastal Mediterranean ponds

Antón-Pardo, María; Armengol, Xavier

doi:10.1016/j.ecss.2011.08.018

Cited by 54 publications

(14 citation statements)

References 33 publications

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“…Unfortunately, to the date the data required to quantify the strength of these associations is not available for rotifers. Instead, we used zooplankton richness as an indicator of habitat predictability . Our empirical survey showed the expected relationship between hatching fraction and predictability, suggesting that those populations inhabiting more unpredictable habitats hedge their bets by spreading hatching over several occasions.…”

Section: Discussionmentioning

confidence: 95%

Bet‐hedging in diapausing egg hatching of temporary rotifer populations – A review of models and new insights

García‐Roger

Carmona

2014

Internat. Rev. Hydrobiol.

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Habitat unpredictability is a local adaptation factor shaping life-history traits in rotifer populations. It may select for the evolution of bet-hedging through risk-spreading strategies in diapausing egg hatching. This means that a fraction of diapausing eggs in wild populations do not hatch even when the conditions are favorable for population growth. Thus, there is a remaining fraction of viable diapausing eggs standing in the sediments for longer periods. According to theory, it is expected that the incidence of bet-hedging strategies for diapausing egg hatching will be higher in more uncertain habitats. Here, we review the major predictions derived from theoretical models applied to the case of monogonont rotifers. In the simplest "bad versus good season" models, the highest environmental uncertainty occurs when the probability of a good season is 0.5, and then the optimal hatching fraction is 0.5 too, implying maximum variance in hatching (i.e., maximum bet-hedging). However, there is still little evidence to support this prediction. This is most likely due to the lack of long-term data of habitat fluctuations and the difficulties in identifying and analyzing bet-hedging strategies, as well as the potential to confound genetic variation and phenotypic plasticity. Moreover, we provide new evidence supporting the occurrence of bet-hedging strategies associated with diapausing egg hatching in the Brachionus plicatilis species complex. Our analyses suggest a gradient of predictability in the habitats of these rotifers, and the existence of a significant positive correlation between the hatching fraction of diapausing eggs and an index of habitat predictability.

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Section: Discussionmentioning

confidence: 95%

Bet‐hedging in diapausing egg hatching of temporary rotifer populations – A review of models and new insights

García‐Roger

Carmona

2014

Internat. Rev. Hydrobiol.

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“…Thus, even a slight increase in mineralization reduces the abundance and richness of cladocerans. Their disappearance in saline lakes promotes the development of rotifers, in particular euryhaline species of the genera Brachionus (Egborge, 1994, Anton-Pardo and Armengol, 2011). While crustacean species richness and composition can be correlated with salinity over its entire range, categorizing saline lakes according to their flora and fauna in general is difficult because of site specific differences; including those of temperature, oxygen and biological composition (Williams, 1998, Williams, 2002).…”

Section: Discussionmentioning

confidence: 99%

Plankton community and the relationship with the environment in saline lakes of Onon-Torey plain, Northeastern Mongolia

Afonina

Ташлыкова

2018

Saudi Journal of Biological Sciences

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The plankton community of sixteen saline lakes located on Onon-Torey plain (Northeastern Mongolia) during the filling phase and the raising of the water level was investigated in July 2011. Thirty-five taxa of phytoplankton and thirty-one species of zooplankton were found. For phytoplankton, blue-green algae (, ,, , sp., sp.) and green algae (, ,, sp.) were dominant. For zooplankton,, , (Rotifera), ,, (Cladocera),, , (Copepoda) dominated. Mineralization, active hydrogen ratio, dissolved oxygen and water temperature were the main factors influencing the diversity, structure and distribution of plankton organisms in the steppe lakes during low water level. The RDA analysis for phytoplankton and zooplankton from different lakes was carried out for selected two groups which included lakes and a subset related species. The first group is of oligohaline and mesohaline lakes in which mostly green algae, rotifers and copepods inhabit. The second group is of mesohaline and polyhaline lakes with mainly blue-green algae some crustaceans and rotifers inhabiting. High abundance and biomass of , sp. and were observed in lakes with high mineralization, pH and temperature.

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“…The species is euryhaline, having been found in the water column from 1.3 to 21.8 g/L salinity [44], and even in salinities as high as 310 g/L in the Tibetan salt lakes of northern China [45]. Their broad tolerance of salinity seems to explain their frequent occurrence in small, ephemeral and highly variable habitats [46,47], naturally encompassing the microecosystems of Spirulina cultivation that formed the focus of our study. According to our investigation, Brachionus plicatilis appeared in 85.9% of the 64 samples gathered, with a maximum relative abundance of 0.78 -possibly attributable to their wide tolerance of environmental conditions such as WT, pH, conductivity, salinity, NH 4 -N, NO x -N and DOC, as well as the plentiful food source of Spirulina.…”

Section: Discussionmentioning

confidence: 99%

Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

Wang

Yuan

et al. 2016

Algal Research

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Effects of salinity and water temporality on zooplankton community in coastal Mediterranean ponds

Cited by 54 publications

References 33 publications

Bet‐hedging in diapausing egg hatching of temporary rotifer populations – A review of models and new insights

Bet‐hedging in diapausing egg hatching of temporary rotifer populations – A review of models and new insights

Plankton community and the relationship with the environment in saline lakes of Onon-Torey plain, Northeastern Mongolia

Contaminating microzooplankton in outdoor microalgal mass culture systems: An ecological viewpoint

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