Impact of contaminant exposure on resource contests in an invasive fish

Sopinka, Natalie; Marentette, Julie R.; Balshine, Sigal

doi:10.1007/s00265-010-1005-1

Cited by 30 publications

(13 citation statements)

References 68 publications

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“…Regions of high and low contamination were based on sediment distribution patterns of multiple contaminants (Hamilton Harbour Remedial Action Plan (RAP) 1992; Hamilton Harbour Remedial Action Plan (RAP) 2003; Zeman 2009). Compared to round goby from areas of low contamination, round goby collected from highly contaminated areas were smaller, had a higher frequency of intersex and vitellogenin production in males (indicating endocrine disruption), higher body burdens of copper and cadmium, greater hepatic EROD activity indicating exposure to AhR-binding contaminants such as PAHs, and altered aggressive behavior (Bowley et al 2010;Marentette et al 2010;Sopinka et al 2010). Sites were similar in water parameters such as turbidity, oxygen concentration and temperature , and all three sites have substrates comprising a sand, cobble and boulder mix.…”

Section: Study Areas and Collection Of Fishmentioning

confidence: 99%

Behavior as biomarker? Laboratory versus field movement in round goby (Neogobius melanostomus) from highly contaminated habitats

et al. 2012

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Changes in animal movement (frequency or speed of locomotion) following exposure to a toxicant are frequently considered a biomarker of contaminant exposure and are some of the most widely reported behavioral results in toxicological literature. However, the ecological consequences of such behavioral changes, such as effects on toxicant transfer in foodwebs, are far less well understood, complicated in part by the short-term nature of laboratory experiments and the lack of complementary field studies where the nature of toxicant exposure is more complex. Here we examine whether naturally exposed individuals of the round goby, a benthic, site-loyal fish, move in a manner similar to conspecifics from less contaminated habitats. In the laboratory, round goby from a relatively cleaner site showed greater activity and exploration than goby from two highly contaminated sites. Male fish were more active than females but the site effects were similar in both sexes. In contrast to laboratory findings, a field mark-recapture study of 881 round goby showed that fish from the cleaner site did not move greater distances or exhibit shorter residence times within the site than round goby from highly contaminated sites. Our results indicate that while behavioral changes in the laboratory may be one of several useful diagnostics of toxicant exposure of wild-exposed animals, they do not necessarily translate readily into measurable differences in a natural context. Thus, the potential fitness consequences of toxicant exposure based on behavioral changes need to be assessed carefully.

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Section: Study Areas and Collection Of Fishmentioning

confidence: 99%

Behavior as biomarker? Laboratory versus field movement in round goby (Neogobius melanostomus) from highly contaminated habitats

et al. 2012

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“…In contrast, round goby (Neogobius melanostomus) collected from sites with heavy sediment contamination (PCBs, PAHs and the metals arsenic, cadmium, iron, lead, zinc) took longer to establish dominance with more aggression in a resource contest, and this dominance relationship was less stable when compared to pairs collected from cleaner areas. 79 Finally, environmentally relevant levels of 17-alpha ethinylestradiol not only have direct effects on reproduction, it also alters courtship behaviour of sh and amphibians. Exposure reduced nest building and courtship behaviours, but most importantly, altered sexual selection of a marine sh sand goby (Pomatoschistus minutus) 80,81 and modied the mating calls of the amphibian Xenopus laevis.…”

Section: Relevance Of Behavioural Endpoints For Population Level Effectsmentioning

confidence: 99%

Emerging investigator series: use of behavioural endpoints in the regulation of chemicals

Ågerstrand

Arnold

Balshine

et al. 2020

Environ. Sci.: Processes Impacts

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“…Male round goby that are reproductively active will guard a territory that contains a nest/shelter (Wickett & Corkum, 1998;MacInnis & Corkum, 2000). Round goby are strongly motivated to compete for and actively defend these shelters from heterospecifics (Dubs & Corkum, 1996;Balshine et al, 2005;Savino et al, 2007) and conspecifics (Stammler & Corkum, 2005;Sopinka et al, 2010). We predicted that if aggression is important in mediating round goby range expansions, then round goby from an invasion front would (1) be bolder than, (2) be more aggressive than and (3) outcompete round goby from established areas.…”

Section: Introductionmentioning

confidence: 99%

Is there a role for aggression in round goby invasion fronts?

Groen¹,

Sopinka²,

Marentette³

et al. 2012

Behav

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The role of aggression as a factor promoting invasiveness remains hotly debated. Increased aggression or a lack of tolerance for conspecifics may promote population spread. Some previous research suggests that more aggressive or bold individuals are increasingly likely to disperse and as such these individuals may be overrepresented at the invasion front. In contrast, it has also been argued that individuals at the invasion front represent the least aggressive or least competitive individuals in the population, as these animals are excluded from established areas. Accordingly, the invasion front should be made up of shy, submissive individuals that exhibit reduced aggression. In this study we explore these alternative predictions by quantifying the levels of intra-specific aggression in the round goby (Neogobius melanostomus), an invasive fish that continues to spread rapidly through the Laurentian Great Lakes region in North America. We collected size matched male round goby from an invasion front as well as from an area with an established population, and we staged resource contests between them. Invasion front fish won 65% of the contests and tended to perform more aggressive acts overall. Invasion front fish were not more active or bold prior to the contest, and used the same types of aggressive displays as fish from established areas. Our results also showed that body size asymmetry was an overriding determinant of competitive outcomes, and that body size rather than individual variation in aggressiveness might be the most important contributing factor determining the composition of round goby invasion fronts throughout the Laurentian Great Lakes and its tributaries.

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Impact of contaminant exposure on resource contests in an invasive fish

Cited by 30 publications

References 68 publications

Behavior as biomarker? Laboratory versus field movement in round goby (Neogobius melanostomus) from highly contaminated habitats

Behavior as biomarker? Laboratory versus field movement in round goby (Neogobius melanostomus) from highly contaminated habitats

Emerging investigator series: use of behavioural endpoints in the regulation of chemicals

Is there a role for aggression in round goby invasion fronts?

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