Monitoring of behavioral patterns of aquatic organisms with an impedance conversion technique

Gerhardt, Almut; Svensson, Erik I.; Clostermann, M.; Fridlund, Bengt

doi:10.1016/0160-4120(94)90138-4

Cited by 95 publications

(73 citation statements)

References 13 publications

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“…Behaviour patterns (locomotion, ventilation) and time-to-death (TTD) were recorded online with the MFB based on quadropole impedance conversion technique (Gerhardt et al, 1994;Gerhardt, 1999Gerhardt, , 2000. Quadropole impedance conversion technique is based on the animal functioning as resistant in an alternating current between electrodes at the opposite walls of a water-filled test chamber.…”

Section: Behaviour and Survivalmentioning

confidence: 99%

“…Quadropole impedance conversion technique is based on the animal functioning as resistant in an alternating current between electrodes at the opposite walls of a water-filled test chamber. A second, non-current carrying pair of electrodes records the changes in impedance caused by the animals movements and generates specific electrical signals for different kinds of behaviour, such as locomotion and ventilation (Gerhardt et al, 1994). Signal analysis is based on a stepwise discrete fast Fourier transform thus generating a histogram of the frequency of occurrence of signal-frequencies between 0.5 and 8.5 Hz (in steps of 0.5 Hz) (Gerhardt et al, 1998).…”

Section: Behaviour and Survivalmentioning

confidence: 99%

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Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Gerhardt

Bisthoven

et al. 2002

Chemosphere

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Section: Behaviour and Survivalmentioning

confidence: 99%

Section: Behaviour and Survivalmentioning

confidence: 99%

Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Gerhardt

Bisthoven

et al. 2002

Chemosphere

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“…Water temperature and pH for each study are included. When only the total ammonia was reported in the original data (Wang et al 2007), the nonionized ammonia was calculated using the water temperature and mean range of pH levels provided by the authors important component of subjectivity and variability between and within individuals, especially when qualitative behavioral endpoints are used (Gerhardt et al 1994). For these reasons they are scarcely used for regulatory uses or for probabilistic risk assessment of toxicants (Scott and Sloman 2004).…”

Section: Resultsmentioning

confidence: 99%

“…These endpoints take into account the effects of toxicants in an ecological context (Scott and Sloman 2004) and can be used as nondestructive measures for repeated toxicological monitoring (Gerhardt et al 2002). Behavioral responses have been studied using different techniques and methodologies, showing a high sensitivity through the different taxonomic groups and toxics, including insects, crustaceans, molluscs, oligochaeta, fish, and amphibians (Kramer et al 1989;Gerhardt et al 1994;Richardson et al 2001;Alonso and Camargo 2004a;Craig and Laming 2004;Scott and Sloman 2004;Schriks et al 2006;Gerhardt 2007a, b).…”

mentioning

confidence: 99%

Long-Term Effects of Ammonia on the Behavioral Activity of the Aquatic Snail Potamopyrgus antipodarum (Hydrobiidae, Mollusca)

Alonso

Camargo

2008

Arch Environ Contam Toxicol

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An appropriate approach to assess the effect of toxicants on aquatic animals is to monitor behavioral endpoints, as they are a link between physiological and ecological processes. A group that can be exposed longterm to low toxic concentrations is benthic macroinvertebrates, as their mobility in aquatic ecosystems is relatively limited. Therefore, the study of behavioral long-term effects in this group is suitable from an ecological point of view, as behavioral effects can appear before mortality. During the last decades there has been an increase in ammonia concentrations in freshwater ecosystems, threatening aquatic animals. The present study focuses on the long-term effects (40 days) of nonionized ammonia on the behavioral activity of the aquatic snail Potamopyrgus antipodarum. One control and three ammonia concentrations (0.02, 0.07, and 0.13 mg N-NH 3 /L) were used in triplicate, and the activity of snails (as mean time to start normal movement) and immobility were recorded for each treatment after 0, 10, 20, 30, and 40 days of continuous exposure to nonionized ammonia. The results show that P. antipodarum presented a high tolerance to lethal long-term effects of nonionized ammonia, as no animal died during the bioassay. However, the behavioral activity of snails was a very sensitivity endpoint, as a mean nonionized ammonia concentration of 0.07 mg N-NH 3 /L affected P.antipodarum. The results are discussed and compared with the available literature on long-term effects of ammonia on freshwater macroinvertebrates. Additionally, the ammonia water quality criteria, NOECs, LOECs, and long-term LCs are discussed on the basis of the current available data for freshwater macroinvertebrates.

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“…feeding activity (Taylor et al 1993), scope for growth (Maltby et al 1990), precopula separation (Pascoe et al 1994) and behavioural responses (Gerhardt et al 1994, 1998, Gerhardt 1995, 1996, De Lange et al 2006. Behaviour is a sensitive endpoint of an animal's physiological response, with effects on both the individual and community level (Clotfelter et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Behavioural and physiological responses to pharmaceutical exposure in macroalgae and grazers from a Baltic Sea littoral community

Wiklund¹,

Oskarsson²,

Thorsén³

et al. 2011

Aquat. Biol.

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Gammarus spp. and Fucus vesiculosus from the Baltic Sea littoral community were exposed to 3 concentrations of the pharmaceuticals ibuprofen and propranolol. Both physiological and behavioural parameters were measured to examine potential effects in the organisms. For Gammarus spp., respiration, feeding rate and activity with and without predator cues were measured, and gross production to respiration ratio (GP/R) and chlorophyll fluorescence were measured for F. vesiculosus. The results showed that propranolol decreased the activity related to movement, and Gammarus spp. could not compensate for the reduced movement when subjected to predator cues. The feeding rates of Gammarus spp. exposed to propranolol were more than 2 times higher at all concentrations compared to the control. Ibuprofen did not significantly affect any of the measured parameters of Gammarus spp. The GP/R was lower in algae exposed to propranolol. The effects of propranolol on both behaviour and physiology of Gammarus spp., in combination with the stress responses in the algae, might cause unexpected indirect and cascade effects which eventually could have implications at both community and ecosystem scales.

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Monitoring of behavioral patterns of aquatic organisms with an impedance conversion technique

Cited by 95 publications

References 13 publications

Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Long-Term Effects of Ammonia on the Behavioral Activity of the Aquatic Snail Potamopyrgus antipodarum (Hydrobiidae, Mollusca)

Behavioural and physiological responses to pharmaceutical exposure in macroalgae and grazers from a Baltic Sea littoral community

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Monitoring of behavioral patterns of aquatic organisms with an impedance conversion technique

Cited by 95 publications

References 13 publications

Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Short-term responses of Oryzias latipes (Pisces: Adrianichthyidae) and Macrobrachium nipponense (Crustacea: Palaemonidae) to municipal and pharmaceutical waste water in Beijing, China: survival, behaviour, biochemical biomarkers

Long-Term Effects of Ammonia on the Behavioral Activity of the Aquatic Snail Potamopyrgus antipodarum (Hydrobiidae, Mollusca)

Behavioural and physiological responses to ­pharmaceutical exposure in macroalgae and ­grazers from a Baltic Sea littoral community

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Behavioural and physiological responses to pharmaceutical exposure in macroalgae and grazers from a Baltic Sea littoral community