Disruption of precopula in Gammarus pulex (L.) — Development of a behavioural bioassay for evaluating pollutant and parasite induced stress

Poulton, Madeline; Pascoe, David D.

doi:10.1016/0045-6535(90)90071-z

Cited by 43 publications

(25 citation statements)

References 26 publications

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“…One such strategy in amphipods is precopulatory guarding and this is known to be changed in the presence of pollutants as pairs separate, presumably in an attempt to avoid the stressor (Davis, 1978;Poulton and Pascoe, 1990;62 OTHMAN AND PASCOE Blockwell et al, 1999). Gravid female amphipods are also known to be more sensitive to toxicants than males; e.g., McCahon and Pascoe (1988) found that female G. pulex carrying eggs were approximately twice as sensitive (in terms of 48-h LC ) than adult males.…”

Section: Hebelmentioning

confidence: 96%

Reduced Recruitment in Hyalella azteca (Saussure, 1858) Exposed to Copper

Othman

Pascoe

2002

Ecotoxicology and Environmental Safety

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Section: Hebelmentioning

confidence: 96%

Reduced Recruitment in Hyalella azteca (Saussure, 1858) Exposed to Copper

Othman

Pascoe

2002

Ecotoxicology and Environmental Safety

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“…In the international literature, there are many references concerning the impact of various natural and anthropogenic substances on the behaviour of the common freshwater shrimp Gammarus pulex [30][31][32][33][34]. Gammarus tigrinus is a common species in the Baltic Sea, therefore, it was used in this study to determine the effect of the chemical stressor, i.e.…”

Section: Discussionmentioning

confidence: 99%

Effect of 17α-Ethinylestradiol on the Time Needed for Males and Females of Gammarus tigrinus Sexton, 1939 to Re-couple

Wiśniewska¹,

Szaniawska²

2015

JESE-B

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Abstract:The aim of presented study was to determine the behavioural response of precopulatory pairs of Gammarus tigrinus exposed to the 17α-ethinylestradiol (EE2). It was hypothesized that 17α-ethinylestradiol would increase the time needed for a male to re-capture a female. Hypothesis was tested in a laboratory with 20 precopula pairs exposed to different treatment conditions. Paired animals were exposed to two different compound concentrations of 50 ng·L -1 and 500 ng·L -1. The control and solvent control was artificial sea water and artificial sea water with ethanol (the diluent for EE2). The couples were tested several times under different experimental treatments. The obtained results indicate that EE2 affects the precopulatory mate guarding behaviour of Gammarus tigrinus. EE2 in concentration of 50 ng·L -1 and 500 ng·L -1 prolonged the time needed for re-pairing. However, relative to the controls only EE2 in concentration of 500 ng·L -1 significantly prolonged the time needed for male-female re-coupling. In summary, EE2affects the reproductive behaviour of Gammarus tigrinus.

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“…The time taken for separation to occur can be correlated to the chemical exposure concentration (Poulton and Pascoe, 1990). Time}response data at each concentration were used to calculate a median separation time induced by the anesthetic (IST ) using Litch"eld's (1949) statistical method for time}response analysis.…”

Section: Crustacea~gammarus Pulex (L)mentioning

confidence: 99%