A New Multispecies Freshwater Biomonitor for Ecologically Relevant Supervision of Surface Waters

Gerhardt, Almut

doi:10.1007/978-1-4615-1305-6_16

Cited by 22 publications

(27 citation statements)

References 16 publications

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“…Circadian rhythmicity of behaviour could be recorded with the MFB in other invertebrates such as, e.g., D. magna (Gerhardt et al, 2005a, Gerhardt et al, in press), Choroterpes picteti (Ephemeroptera; Gerhardt et al, 2005b), the caddis fly Hydropsyche angustipennis (Gerhardt, 1996) and the stone fly Dinocras cephalotes (Gerhardt, 2000), but not in the dipteran benthic insect Chironomus (Janssens de . Aguzzi et al (2004) could relate circadian night activity of the decapod Norway lobster to endogenous heart beat periodicities.…”

Section: Discussionmentioning

confidence: 99%

Behavioral Changes and Acute Toxicity to the Freshwater Shrimp Atyaephyra desmaresti Millet (Decapoda: Natantia) from Exposure to Acid Mine Drainage

Bisthoven

Gerhardt

Guhr³

et al. 2006

Ecotoxicology

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Short-term 48 h laboratory bioassays with water from an acid mine drainage (AMD: pH 3.3, 4.4, 5.0, 5.5, 6.4, control) and water from an arsenic containing reservoir were performed with the freshwater shrimp Atyaephyra desmaresti Millet, validated in situ and compared to acidified control water (ACID). Behaviour, mortality and time to death were monitored with the Multispecies Freshwater Biomonitor (MFB). The shrimps had equal 24 h-LC50s at pH 4 in AMD and ACID. However, after 48 h AMD proved more toxic (48 h-LC50 at pH 5.2) than ACID (48 h-LC50 at pH 4.5). Stress behaviour in AMD consisted at pH < or = 6.4 of a pH-dependent decrease in activity, with disappearance of circadian rhythmicity, and at pH 4.4 a clear increase of ventilation. At pH 5.5 bioaccumulation of metals was higher and locomotion lower than at pH 5.0. In ACID, only at pH < or = 4.4 locomotion became abated and arythmic. Locomotion in the field was equal or higher compared to the laboratory, whereas the ventilation was higher in the laboratory. A. desmaresti is a valuable species to be used in short term behavioural bioassays of AMD in Europe.

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Section: Discussionmentioning

confidence: 99%

Behavioral Changes and Acute Toxicity to the Freshwater Shrimp Atyaephyra desmaresti Millet (Decapoda: Natantia) from Exposure to Acid Mine Drainage

Bisthoven

Gerhardt

Guhr³

et al. 2006

Ecotoxicology

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“…The activity of the animals is measured in flow-through sensor chambers with quadropole impedance conversion as measuring principle connected to a measuring unit and a personal computer with specific software for data evaluation (Gerhardt 2000). Different types of behaviours e.g.…”

Section: Subchronic Testmentioning

confidence: 99%

Effects of 3,4-dichloroaniline and diazinon on different biological organisation levels of zebrafish (Danio rerio) embryos and larvae

et al. 2008

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In this study the effects of 3,4-dichloroaniline (3,4-DCA), a decomposition product of the herbicides propanil and diuron (and other pesticides), and diazinon, a neurotoxic insecticide, on early life stages of zebrafish Danio rerio were assessed. The toxicity of these substances with different modes of action (acetylcholine esterase inhibitor vs. polar narcosis) was tested for single substances as well as in binary mixtures. To study effects on different biological organisation levels (from the molecular up to the whole organism level) the molecular stress response regarding Hsp70, the embryonic and larval development and the locomotor activity were investigated as integrative biomarkers. In single substance tests 3,4-dichloroaniline elicited deformations at > or = 0.25 mg/l during the 11 days subchronic test, whereas locomotor activity and mortality were impaired at > or = 0.5 mg/l. Diazinon effects on those parameters were obvious at > or = 2 mg/l, except for the deformation rate (11 days:1 mg/l). In equitoxic mixtures of both substances concentration additivity was observed for deformation rate and mortality (11 days). An increase in the Hsp70 content occurred in zebrafish exposed to 0.25 mg 3,4-DCA/l as well as to 0.05 mg diazinon/l; in mixtures concentration additivity could be shown. The investigated endpoints varied in respect to their sensitivity, with deformations and Hsp70 levels as most sensitive parameters concerning 3,4-DCA and Hsp70 as most sensitive parameter concerning diazinon. Accordingly, for an integrated understanding of the effects of chemicals and their mixtures on fish, a battery of different test methods should be applied.

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“…The Stepwise Stress Model (SSM), described by Gerhardt (Gerhardt 1999(Gerhardt , 2001Gerhardt et al 2005, anticipates that with either increasing toxicant concentration or exposure time, a cascade of regulatory behavioral stress responses are activated and performed by the organisms. SSM postulates that an organism displays a time-dependent sequence of different regulatory or compensatory behavioral stress responses during exposure to pollutants above their respective thresholds of resistance.…”

Section: Behavioral Change Analysismentioning

confidence: 99%

The early warning of aquatic organophosphorus pesticide contamination by on-line monitoring behavioral changes of Daphnia magna

Ren

Zha

et al. 2007

Environ Monit Assess

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In this paper, the movement behavior of Daphnia magna was studied as a bio-indicator of organophosphorous pesticide (OP) contamination, using an on-line bio-monitoring method, the Multispecies Freshwater Biomonitor®. A static test of acute toxicity test revealed the 24-h and 48-h LC 50 values (95% confidence limit) for Daphnia magna to be respectively 0.45 μg/l and 0.21 μg/l for dipterex 3.80 μg/l and 0.90 μg/l for malathion, and 1.25 μg/l and 0.38 μg/l for parathion. The behavior strength of Daphnia magna was a sensitive indicator of sublethal OP stress and resulted in significant concentrationresponse relationships for the three OPs. Increasing OP concentration will result in more intensive behavioral responses of Daphnia magna and shorter response time, which could be described by the Stepwise Stress Model (SSM). Therefore movement behavior can be effectively applied in early warning of environment quality by on-line bio-monitoring. The intensive changes in behavior strength of Daphnia magna over a short time follow the SSM concept and can be used as an indicator of early stress response to OP accidental contamination.

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A New Multispecies Freshwater Biomonitor for Ecologically Relevant Supervision of Surface Waters

Cited by 22 publications

References 16 publications

Behavioral Changes and Acute Toxicity to the Freshwater Shrimp Atyaephyra desmaresti Millet (Decapoda: Natantia) from Exposure to Acid Mine Drainage

Behavioral Changes and Acute Toxicity to the Freshwater Shrimp Atyaephyra desmaresti Millet (Decapoda: Natantia) from Exposure to Acid Mine Drainage

Effects of 3,4-dichloroaniline and diazinon on different biological organisation levels of zebrafish (Danio rerio) embryos and larvae

The early warning of aquatic organophosphorus pesticide contamination by on-line monitoring behavioral changes of Daphnia magna

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