Shifts in zooplankton communities in high-mountain lakes induced by singular events (fish stocking, earthquakes): evidence from a 20-year survey in Slovenia (Central Europe)

Brancelj, Anton

doi:10.1007/s10452-021-09858-1

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…Fish richness and density decreased significantly, with fish absent from some heavily silted streams (Harding and Jellyman 2015). Brancelj (2021) observed species replacement in the zooplankton of Slovenian lakes after earthquakes, with severe changes in the zooplankton biomass likely related to a pulse input of nutrients and resuspension of fine sediments. After earthquakes, the increase in groundwater discharge was documented on many occasions (Mohr et al 2017).…”

Section: Volcanic Eruptionmentioning

confidence: 89%

Consequences of “natural” disasters on aquatic life and habitats

et al. 2023

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“Natural” disasters (also known as geophysical disasters) involve physical processes that have a direct or indirect impact on humans. These events occur rapidly and may have severe consequences for resident flora and fauna as their habitat undergoes dramatic and sudden change. Although most studies have focused on the impact of natural disasters on humans and terrestrial systems, geophysical disasters can also impact aquatic ecosystems. Here we provide a synthesis on the effects of the most common and destructive geophysical disasters on aquatic systems (life and habitat). Our approach spanned realms (i.e., freshwater, estuarine, marine) and taxa (i.e., plants, vertebrates, invertebrates, microbes) and included floods, droughts, wildfires, hurricanes/cyclones/typhoons, tornadoes, dust storms, ice storms, avalanches (snow), landslides, volcanic eruptions, earthquakes (including limnic eruptions), tsunamis, and cosmic events. Many geophysical disasters have dramatic effects on aquatic systems. The evidence base is somewhat limited for some natural disasters because transient events (e.g., tornadoes, floods) are difficult to study. Most natural disaster studies focus on geology/geomorphology and hazard assessment for humans and infrastructure. However, the destruction of aquatic systems can impact humans indirectly through loss of food security, cultural services or livelihoods. Many geophysical disasters interact in complex ways (e.g., wildfires often lead to landslides and flooding) and can be magnified or otherwise mediated by human activities. Our synthesis reveals that geophysical events influence aquatic ecosystems, often in negative ways, yet systems can be resilient provided that effects are not compounded by anthropogenic stressors. It is difficult to predict or prevent geophysical disasters but understanding how aquatic ecosystems are influenced by geophysical events is important given the inherent connection between peoples and aquatic ecosystems.

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Section: Volcanic Eruptionmentioning

confidence: 89%

Consequences of “natural” disasters on aquatic life and habitats

et al. 2023

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“…The present results show the importance of adult fish as consumers of the zooplankton population, as in other temperate mountain lakes [ 13 ]. Introduced fish can change the size structure of zooplankton from large-bodied cladocerans and copepods to smaller ones and rotifer-dominated communities through size-preferential consumption in temperate lakes [ 4 , 13 , 60 ] and HMLs [ 13 , 61 ]. In the fish-stocked lake (El Sol), the most abundant zooplankton species, D .…”

Section: Discussionmentioning

confidence: 99%

“…The results highlight the importance of estimating a correct TDF because the outcome of a mixing model depends on the mean and variance of TDF. Thus, accurate predictions on diet contributions to the consumer must be weighted on model design and cross-validation [ 61 , 66 ]. The similar patterns in the contribution of possible sources to fish diet observed in this study, even with different model assumptions [ 74 ], strongly suggest that the use of different TDF values is a reliable alternative to Bayesian mixing methods in the analysis of fish diets in a tropical HML if isotopic data and fractionation studies are scarce.…”

Section: Discussionmentioning

confidence: 99%

Food web differences between two neighboring tropical high mountain lakes and the influence of introducing a new top predator

Jiménez-Seinos,

Alcocer,

Planas

2023

PLoS ONE

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High mountain lakes (HMLs) are considered unique and comparable ecosystems for monitoring global climate change. The food web structure can indicate the response of these ecosystems to ecological threats, such as fish introduction, by analyzing the trophic dynamics. Nonetheless, the food webs of tropical HMLs are less well-studied than temperate HMLs. The present study assessed the food webs of two neighboring (600 m apart) tropical HMLs, El Sol and La Luna, inside the crater of the Nevado de Toluca volcano, Mexico. It used stable isotopes (δ13C and δ15N) and Bayesian mixing models with different trophic discrimination factors and priors to assess the impacts of introduced rainbow trout, persisting only in the larger lake, El Sol. The food web in Lake El Sol was more complex than in Lake La Luna, mainly due to its larger size, extensive vegetated littoral zone, and being fueled by autochthonous primary production. In contrast, the smaller and fishless Lake La Luna has a reduced and bare littoral zone that harbored a simple food web substantially sustained by allochthonous carbon inputs. The persistence of introduced rainbow trout in Lake El Sol but not in Lake La Luna accentuated the differences between the lakes. The models suggested that rainbow trout fed on key consumers of littoral macroinvertebrates (70–80%) and pelagic zooplankton (20–30%), increasing the linkage between sub-networks. In both tropical HMLs, the species richness and herbivorous fraction were elevated compared with temperate HMLs, while the linkage density and omnivorous fraction were lower. Basal nodes dominated these tropical HMLs, and the vegetated littoral zone of Lake El Sol had more intermediate (omnivore) nodes. Our results showed the convenience of food web analysis to compare the effects of introduced fish in originally fishless lakes in different latitudes.

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Modern distribution of Cladocera in lakes of northern China and western Mongolia and its environmental implications

Wang,

Xiang,

et al. 2024

Fundamental Research

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Shifts in zooplankton communities in high-mountain lakes induced by singular events (fish stocking, earthquakes): evidence from a 20-year survey in Slovenia (Central Europe)

Cited by 5 publications

References 36 publications

Consequences of “natural” disasters on aquatic life and habitats

Consequences of “natural” disasters on aquatic life and habitats

Food web differences between two neighboring tropical high mountain lakes and the influence of introducing a new top predator

Modern distribution of Cladocera in lakes of northern China and western Mongolia and its environmental implications

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