Single and mixed diets of the toxic Cyanobacteria Microcystis aeruginosa and Raphidiopsis raciborskii differently affect Daphnia feeding behavior

Vilar, Mauro Cesar Palmeira; Ferrão-Filho, Aloysio da Silva; Azevedo, Sandra M.F.O.

doi:10.1016/j.fooweb.2022.e00245

Cited by 8 publications

(4 citation statements)

References 56 publications

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“…Zamora Barrios et al [ 38 ] suggested that the low bioaccumulation of cyanotoxins in cladocerans such as Bosmina in a Mexican lake is due to their inability to ingest the dominant cyanobacterial taxa, which are present as large filaments or colonies ( Planktothrix, Anabaena, Microcystis , and Cylindrospermopsis ). Some cladocerans such as Diaphanosoma and Daphnia laevis are more tolerant to cyanotoxins in their tissues than other species [ 55 , 97 , 98 ].…”

Section: Bioaccumulation Of Cyanotoxins Through the Food Chainmentioning

confidence: 99%

Experimental Studies on Zooplankton-Toxic Cyanobacteria Interactions: A Review

Nandini

2023

Toxics

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Cyanobacterial blooms have been recognized as a problem in fresh water for about 150 years. Over the past 50 years, experimental studies on the subject have gained importance considering the increasing need to control toxic cyanobacterial blooms. This article presents information on the different lines of research that have been undertaken on zooplankton–cyanobacteria interactions over the past 50 years. These include information on filtering/ingestion rates and phytoplankton preferences of small and large rotifers, cladocerans, and copepods; growth rates of zooplankton on cyanobacterial diets; feeding rates of other freshwater invertebrates on cyanobacteria; role of zooplankton in top-down biomanipulation efforts; effect of cyanotoxins on zooplankton; bioaccumulation of cyanotoxins; and physical and chemical control of cyanobacterial blooms. We also highlight measures that have led to successful lake management and improvement of water quality in selected waterbodies.

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Section: Bioaccumulation Of Cyanotoxins Through the Food Chainmentioning

confidence: 99%

Experimental Studies on Zooplankton-Toxic Cyanobacteria Interactions: A Review

Nandini

2023

Toxics

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“…According to the detection of MCs content in muscle tissue of fish with different nutritional levels on the food chain of Chaohu Lake in Anhui Province, it was found that MCs in the upper trophic layer of the food chain, such as carnivorous and omnivorous fish, were significantly higher than those in phytoplankton-eating fish and herbivorous fish downstream of the food chain [ 65 ]. This shows that when cyanobacteria are used as feed, they can be used by primary consumers to migrate through the food chain, which in turn threatens human safety [ 66 ].…”

Section: Exposure Pathways Of Mcs In the Process Of Resource Utilizationmentioning

confidence: 99%

Transmission of Microcystins in Natural Systems and Resource Processes: A Review of Potential Risks to Humans Health

Ren

Wang

Zhang

et al. 2023

Toxins

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The rapid rise of microcystins (MCs) poses a serious threat to global freshwater ecosystems and has become an important issue of global public health. MCs have considerable stability and are the most widely distributed hepatotoxins. It cannot only accumulate in aquatic organisms and transfer to higher nutrients and levels, but also be degraded or transferred during the resource utilization of cyanobacteria. No matter which enrichment method, it will lead to the risk of human exposure. This review summarizes the research status of MCs, and introduces the distribution of MCs in different components of aquatic ecosystems. The distribution of MCs in different aquatic organisms was summarized, and the potential risks of MCs in the environment to human safety were summarized. MCs have polluted all areas of aquatic ecosystems. In order to protect human life from the health threats caused by MCs, this paper also proposes some future research directions to promote MCs control and reduce human exposure to MCs.

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“…Cyanobacteria are photosynthetic prokaryotes that usually compose marine and freshwater phytoplankton, and contribute to the primary production in aquatic food webs as a significant food source for zooplankton consumers, especially in eutrophic water bodies [ 6 , 7 , 8 ]. However, dietary exposure to cyanobacteria can affect zooplankton due to its low nutritional quality, such as the lack of polyunsaturated fatty acids (PUFAs) and sterols [ 9 ], difficult digestibility [ 10 ] or by the ability of some cyanobacterial genera on producing bioactive secondary metabolites (cyanotoxins) which can affect zooplankton motility, feeding behavior, survival and life cycles [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Saxitoxin-Producing Raphidiopsis raciborskii (Cyanobacteria) Constrains Daphnia Fitness and Feeding Rate despite High Nutritious Food Availability

Reis

Carvalho

Vilar

et al. 2023

Toxics

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Changes in food quality can dramatically impair zooplankton fitness, especially in eutrophic water bodies where cyanobacteria are usually predominant. Cyanobacteria are considered a food with low nutritional value, and some species can produce bioactive secondary metabolites reported as toxic to zooplankton. Considering that cyanobacteria can limit the survival, growth and reproduction of zooplankton, we hypothesized that the dietary exposure of neotropical Daphnia species (D. laevis and D. gessneri) to saxitoxin-producing cyanobacteria impairs Daphnia feeding rates and fitness regardless of a high availability of nutritious algae. Life table and grazing assays were conducted with different diets: (1) without nutritional restriction, where neonates were fed with diets at a constant green algae biomass (as a nutritious food source), and an increasing cyanobacterial concentration (toxic and poor food source), and (2) with diets consisting of different proportions of green algae (nutritious) and cyanobacteria (poor food) at a total biomass 1.0 mg C L−1. In general, the presence of high proportions of cyanobacteria promoted a decrease in Daphnia somatic growth, reproduction and the intrinsic rate of population increase (r) in both diets with more pronounced effects in the nutritionally restricted diet (90% R. raciborskii). A two-way ANOVA revealed the significant effects of species/clone and treatments in both assays, with significant interaction between those factors only in the second assay. Regarding the grazing assay, only D. laevis was negatively affected by increased cyanobacterial proportions in the diet. In the life table assay with constant nutritious food, a reduction in the reproduction and the intrinsic rate of the population increase (r) of all species were observed. In conclusion, we found adverse effects of the toxic cyanobacterial strain R. raciborskii on Daphnia fitness, regardless of the constant amount of nutritious food available, proving the toxic effect of R. raciborskii and that the nutritional quality of the food has a greater influence on the fitness of these animals.

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Single and mixed diets of the toxic Cyanobacteria Microcystis aeruginosa and Raphidiopsis raciborskii differently affect Daphnia feeding behavior

Cited by 8 publications

References 56 publications

Experimental Studies on Zooplankton-Toxic Cyanobacteria Interactions: A Review

Experimental Studies on Zooplankton-Toxic Cyanobacteria Interactions: A Review

Transmission of Microcystins in Natural Systems and Resource Processes: A Review of Potential Risks to Humans Health

Saxitoxin-Producing Raphidiopsis raciborskii (Cyanobacteria) Constrains Daphnia Fitness and Feeding Rate despite High Nutritious Food Availability

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