Behavioral responses of the estuarine calanoid copepod Eurytemora affinis to sub-lethal concentrations of waterborne pollutants

Michalec, François‐Gaël; Holzner, Markus; Menu, Dominique; Hwang, Jiang‐Shiou; Souissi, Sami

doi:10.1016/j.aquatox.2013.05.007

Cited by 52 publications

(26 citation statements)

References 117 publications

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“…Cohen et al [11] found that ingestion of the red tide dinoflagellate Karenia brevis had negligible effects on swimming speed of Acartia tonsa but significantly reduced the swimming speed of Centropages typicus, despite the fact that K. brevis is a sodium channel activator [61]. It is noteworthy that zooplankton exposed to toxins and environmental pollutants often exhibit behavioural responses at odds with the 'typical' mode of action [62,63]. Furthermore, responses may depend on exposure time and dosage [11,12].…”

Section: Discussionmentioning

confidence: 99%

Intoxicated copepods: ingesting toxic phytoplankton leads to risky behaviour

et al. 2016

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Understanding interactions between harmful algal bloom (HAB) species and their grazers is essential for determining mechanisms of bloom proliferation and termination. We exposed the common calanoid copepod, Temora longicornis to the HAB species Alexandrium fundyense and examined effects on copepod survival, ingestion, egg production and swimming behaviour. A. fundyense was readily ingested by T. longicornis and significantly altered copepod swimming behaviour without affecting copepod survival or fitness. A. fundyense caused T. longicornis to increase their swimming speed, and the straightness of their path long after the copepods had been removed from the A. fundyense treatment. Models suggest that these changes could lead to a 25-56% increase in encounter frequency between copepods and their predators. This work highlights the need to determine how ingesting HAB species alters grazer behaviour as this can have significant impacts on the fate of HAB toxins in marine systems.

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Section: Discussionmentioning

confidence: 99%

Intoxicated copepods: ingesting toxic phytoplankton leads to risky behaviour

et al. 2016

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“…Consequently, using the summed PAH values for dissolved (11.1 ng L À1 ), SPM (3361 ng g À1 ) and E. affinis (879 ng g À1 dry wt) gives K d s of 3 Â 10 5 L kg À1 and 5.2 Â 10 5 L kg À1 , respectively. Experiments on the behavioural responses of E. affinis to sub-lethal concentrations of a 3-component mixture of PAHs (40 ng L À1 ) in estuarine waters showed that swimming speed and activity were affected (Michalec et al, 2013). Clearly, PAHs are highly particlereactive and significant uptake into the copepod suggests potential transmission through the marine food chain (Cailleaud et al, 2007a).…”

Section: Polycyclic Aromatic Hydrocarbonsmentioning

confidence: 97%

The English Channel: Contamination status of its transitional and coastal waters

Tappin

Millward

2015

Marine Pollution Bulletin

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The chemical contamination (organic compounds, metals, radionuclides, microplastics, nutrients) of English Channel waters has been reviewed, focussing on the sources, concentrations and impacts. River loads were only reliable for Pb, whereas atmospheric loads appeared robust for Cd, Pb, Hg, PCB-153 and γ-HCH. Temporal trends in atmospheric inputs were decreasing. Contaminant concentrations in biota were relatively constant or decreasing, but not for Cd, Hg and HBCDD, and deleterious impacts on fish and copepods were reported. However, data on ecotoxicological effects were generally sparse for legacy and emerging contaminants. Intercomparison of activity concentrations of artificial radionuclides in sediments and biota on both Channel coasts was hindered by differences in methodological approaches. Riverine phosphate loads decreased with time, while nitrate loads remained uniform. Increased biomass of algae, attributable to terrestrial inputs of nutrients, has affected benthic production and shellfisheries. A strategic approach to the identification of contaminant impacts on marine biota is recommended.

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“…Lillelund and Lasker 1971;Paffenhöfer and Mazzocchi 2002), while only a few compared males, females and ovigerous females (Seuront 2006;Dur et al 2010;Michalec et al 2010, Michalec et al 2013a, Michalec et al 2013b). In particular, Dur et al (2010) compared the different swimming behaviours of the three adult stages of Pseudodiaptomus annandalei, a congeneric species of P. marinus living in the China seas and in the Indian Ocean.…”

Section: P Marinus and P Annandalei: A Comparison Of Their Behavioumentioning

confidence: 99%

Pseudodiaptomus marinus Sato, 1913, a new invasive copepod in Lake Faro (Sicily): observations on the swimming behaviour and the sex-dependent responses to food

et al. 2014

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Background: The calanoid copepod Pseudodiaptomus marinus Sato, 1913 is an estuarine-coastal species, living in shallow eutrophic inshore waters. It is native of the Indo-Pacific region, but in the last 50 years, it has successfully colonized new areas worldwide. P. marinus, first recorded in Lake Faro (Messina, Italy) in October 2008, is now a stable component of the zooplankton assemblage of the lake. By means of video recordings, for the first time, the swimming behaviour of males and non-ovigerous and ovigerous females of P. marinus has been studied. The individuals were filmed in the presence and absence of food to evaluate how the presence of prey might affect the swimming behaviour. Results: The swimming motion showed marked sex-dependent features and responses to the presence of food. Mechanisms through which behaviour might influence the outcome of a new colonization were analysed. The behaviour of P. marinus was then compared with that of the congeneric Pseudodiaptomus annandalei showing the typical behaviour displayed by the representatives of the genus Pseudodiaptomus of living in proximity of the bottom.

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Behavioral responses of the estuarine calanoid copepod Eurytemora affinis to sub-lethal concentrations of waterborne pollutants

Cited by 52 publications

References 117 publications

Intoxicated copepods: ingesting toxic phytoplankton leads to risky behaviour

Intoxicated copepods: ingesting toxic phytoplankton leads to risky behaviour

The English Channel: Contamination status of its transitional and coastal waters

Pseudodiaptomus marinus Sato, 1913, a new invasive copepod in Lake Faro (Sicily): observations on the swimming behaviour and the sex-dependent responses to food

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