Recent invasion by a non-native cyprinid (common bream Abramis brama) is followed by major changes in the ecological quality of a shallow lake in southern Europe

Volta, Pietro; Leoni, Barbara; Campi, Barbara; Sala, Paolo; Garibaldi, Letizia; Lauridsen, Torben L.; Winfield, Ian J.

doi:10.1007/s10530-013-0433-z

Cited by 29 publications

(19 citation statements)

References 85 publications

(76 reference statements)

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“…This has been previously reported for other benthivorous fish species such as bream (Abramis brama), common carp (Cyprinus carpio) and gizzard shad (Dorosoma cepedianum), which are common in temperate eutrophic shallow lakes (Andersson et al, 1978;Meijer et al, 1990;Breukelaar et al, 1994;Lougheed et al, 1998;Schaus & Vanni, 2000;Godwin et al, 2011;Volta et al, 2013). It has been suggested that a reduction of 70-85% of benthivorous fish biomass (Meijer et al, 1990;Hosper & Meijer, 1993;Perrow et al, 1997;Hansson et al, 1998) and the maintenance of their population depressed (Godwin et al, 2011) is necessary for a long-term improvement of lake water quality by biomanipulation.…”

Section: Discussionmentioning

confidence: 68%

“…The removal of planktivorous fish increases the abundance of large zooplankton, which in turn can suppress phytoplankton biomass (Carpenter et al, 1985;Meijer et al, 1994), but within a limited range of P loads (Jeppesen et al, 1990(Jeppesen et al, , 1991. On the other hand, the removal of benthivorous fish reduce the bioturbation of lake sediment and the translocation of nutrients from the sediment to the water column decreasing algal biomass and primary production (Andersson et al, 1978;Meijer et al, 1990;Breukelaar et al, 1994;Cline et al, 1994;Lougheed et al, 1998;Schaus & Vanni, 2000;Volta et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Shallow lake restoration and water quality management by the combined effects of polyaluminium chloride addition and benthivorous fish removal: a field mesocosm experiment

2015

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Polyaluminium chloride (PAC) has been used in lake restoration and water quality management as a flocculent to remove algal biomass and organic matter from the water column and increase water transparency. However, benthivorous fish may suspend the sedimented flocs and reduce the efficiency of PAC in improving water quality. Therefore, we hypothesized that PAC is more efficient in reducing algal biomass, suspended solids and total phosphorus concentrations in the water, and increasing water transparency, when benthivorous fish is removed. To test this hypothesis, we performed a field experiment combining the presence and absence of PAC (2 mg Al l -1 ) with the presence and absence of benthivorous fish (350 g m -2 ). Contrary to our hypothesis, no significant interactions were found between the effects of PAC addition and benthivorous fish removal on the measured variables. Both techniques significantly decreased chlorophyll a and phosphorus concentrations and increased water transparency, but their effects were independent of each other. The above results suggest that either of the treatments may improve water quality, but this goal would be better achieved by the combination of both techniques than by the application of one or other technique in isolation.

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Section: Discussionmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Shallow lake restoration and water quality management by the combined effects of polyaluminium chloride addition and benthivorous fish removal: a field mesocosm experiment

2015

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“…Indeed, this phenomenon is dependent on reservoir age (Daga et al ., ) and the youngest reservoir studied here was constructed 17 years ago. Also, the intense fish introductions in several of the reservoirs we studied also affect phytoplankton communities (as recorded by Reissig et al ., ; Volta et al ., ), indicating that cyanobacterial abundance is not the only indicator of changes arising from reservoir formation.…”

Section: Discussionmentioning

confidence: 97%

Temporal variation in phytoplankton beta diversity patterns and metacommunity structures across subtropical reservoirs

et al. 2017

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Summary Analysing the beta diversity components and spatial patterns of species distribution may provide key insights into how local communities respond to human‐induced environmental changes. Indeed, analysing temporal variation in spatial patterns of species distribution may reveal trends of biotic homogenisation and its likely causes. We used an eight‐year phytoplankton data set generated from to 17 reservoirs in Brazil to analyse the temporal variability in beta diversity and its turnover and nestedness components. This data set was also used to determine metacommunity structures across these subtropical reservoirs. We tested whether there was any long‐term temporal trend in beta diversity that might be indicative of biotic homogenisation or differentiation. We also tested how temporal variation was related to climatic conditions, environmental heterogeneity, productivity and cyanobacterial dominance. Lastly, we verified whether the phytoplankton metacommunity showed non‐random structure. We did not find supporting evidence for biotic homogenisation among the reservoirs. Rather, we did find that nestedness decreased during the study. Environmental heterogeneity was the main variable positively related to phytoplankton beta diversity, while high ammonium concentration and cyanobacterial abundance were negatively correlated with spatial variation among the reservoirs. Despite the noticeable temporal variation in metacommunity structures, the phytoplankton species responded similar to latent environmental gradients. Clementsian patterns found mainly in fall and winter were consistent with differences in species composition between sites, reinforcing the role of environmental filtering in driving changes in these metacommunities. Our results suggest that eutrophication control is essential to prevent biotic homogenisation, at least in our study system. We also highlight that metacommunity patterns detected in snapshot surveys should not be extrapolated temporally.

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“…Other mechanisms are the disturbance of sediments by "bioturbation" (Meijer, Haan, Breukelaar, & Buiteveld, 1990;Volta et al, 2013).…”

Section: Cascading Effects Of Non-nativesmentioning

confidence: 99%

A network meta‐analysis of threats to South American fish biodiversity

et al. 2019

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While environmental alterations have made Homo sapiens the hyperkeystone species of the globe, biotic homogenization initiated a new era, the “Homogenocene.” Still, some terrestrial and aquatic ecosystems in South America are considered pristine and wild, which can lead to a general faith that economic progress is consistent with conservation strategies, even without scientific support. We compiled anthropogenic threats to fish biodiversity in a hierarchical meta‐analysis, along with an evidence synthesis of threats related to biological invasions, based on peer‐reviewed research with the aim to represent the actual conservation status of the South American ichthyofauna. We highlighted human‐related threats and synergistic effects of biological invasions, climate change, environmental alterations (e.g., pollution, aquaculture and damming) and fisheries. Considering measures that reinforce novel alien fish (e.g., artificial hybrids or genetically modified) introductions, it became clear why an eventual increase in local or regional species richness is not always beneficial to aquaculture, biodiversity, human well‐being or nature. In fact, citizens in all societal roles, including scientists, should revise their concepts about threats to fish biodiversity. Environmental policies require more than taxonomic diagnostics to achieve conservation goals under an incompatible scenario of a multiplying number of fish species and biotic homogenization. We advocate for countries in South America using science‐based strategies useful to maintain their social and economic growth along with their “remaining nature.” We live a crucial moment when the government overlooks threats to biodiversity and uses agribusiness as the most acceptable manner of fuelling the economy.

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Recent invasion by a non-native cyprinid (common bream Abramis brama) is followed by major changes in the ecological quality of a shallow lake in southern Europe

Cited by 29 publications

References 85 publications

Shallow lake restoration and water quality management by the combined effects of polyaluminium chloride addition and benthivorous fish removal: a field mesocosm experiment

Shallow lake restoration and water quality management by the combined effects of polyaluminium chloride addition and benthivorous fish removal: a field mesocosm experiment

Temporal variation in phytoplankton beta diversity patterns and metacommunity structures across subtropical reservoirs

A network meta‐analysis of threats to South American fish biodiversity

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