Maternal body burdens of methylmercury impair survival skills of offspring in Atlantic croaker (Micropogonias undulatus)

Álvarez, María del Carmen Luís; Murphy, Cheryl A.; Rose, Kenneth A.; McCarthy, Ian; Fuiman, Lee A.

doi:10.1016/j.aquatox.2006.09.010

Cited by 72 publications

(55 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, in larval zebrafish exposed to mercury, dysfunction of the lateral line and various sensory neurons triggering the Mauthner cells are most likely responsible for the low responsiveness to startling stimuli (Weber, 2006). On the other hand, ammonia had no effect on responsiveness in grey mullets (Mckenzie et al, 2009), similar to the lack of effect of maternally derived MeHg on the planktonic larval stage of Atlantic croaker (Alvarez et al, 2006).…”

Section: Responsivenessmentioning

confidence: 68%

“…Similarly, maternally derived MeHg had a negative effect on escape speed associated with MeHg concentration in the eggs, suggesting that MeHg effects on escape performance are developmental (Alvarez et al, 2006). Therefore, in these cases, the explanation for the observed concentration-dependent changes in performance is most likely proximate (i.e., due to physiological/developmental impairment in the fish).…”

Section: Locomotor Performancementioning

confidence: 97%

“…These effects can be interpreted by using proximal explanations, for example, in relation to the functioning of the neuro-sensory system, as discussed above for the effect of temperature on responsiveness (Preuss and Faber, 2003). As for responsiveness, work on maternally derived MeHg showed no effect on reaction distance (Alvarez et al, 2006).…”

Section: Reaction Distancementioning

confidence: 99%

See 2 more Smart Citations

Context‐dependent variability in the components of fish escape response: integrating locomotor performance and behavior

2010

View full text Add to dashboard Cite

Escape responses are used by most fish species in order to avoid predation. Escape responses include a number of behavioral and kinematic components, such as responsiveness, reaction distance, escape latency, directionality, and distance-derived performance. All of these components can contribute to escape success. Work on the context-dependent variability has focused on reaction distance, and suggests that this component is largely determined by the relative cost and benefits of escaping (economic hypothesis). For example, reaction distance was found to depend on many factors related to perceived risk and cost of escaping, such as the attack speed and size of the predators, the proximity to refuges, and engagement in other activities (e.g., feeding). Evidence from many behavioral, kinematic, and physiological studies suggest that performance in other components of the escape response is also not always maximized. For example, escape latencies may increase in the presence of schooling neighbors, and escape speed is higher in fish that have been subject to higher predation pressure. In addition, all escape components are further modulated by the effect of environmental factors. Variability in escape components can be interpreted by using both ultimate and proximate explanations, for example, the effect of stimulus strength on escape latency can be interpreted as the triggering neural threshold varying with stimulus strength (proximate explanation) and high intensity stimuli representing higher risk to the prey (ultimate explanation). An integrative approach is suggested for a full, ecologically relevant, assessment of escape performance in fish.

show abstract

Section: Responsivenessmentioning

confidence: 68%

Section: Locomotor Performancementioning

confidence: 97%

Section: Reaction Distancementioning

confidence: 99%

See 1 more Smart Citation

Context‐dependent variability in the components of fish escape response: integrating locomotor performance and behavior

2010

View full text Add to dashboard Cite

show abstract

“…Aquatic animals such as fi sh take up Hg either by direct exposure through their body or by ingestion. Hg can then bioaccumulate and biomagnify through the food chain (Alvarez et al, 2006). Uptake and elimination pathways differ substantially among tissues (e.g., liver, kidney, gills, and muscle), thus, Hg accumulation is tissue-specifi c (Olson et al, 1973;Niimi and Kissoon, 1994;Yediler and Jacobs, 1995;Rothschild and Duffy, 2005).…”

Section: Introductionmentioning

confidence: 99%

Tissue-specific bioaccumulation and oxidative stress responses in juvenile Japanese flounder (Paralichthys olivaceus) exposed to mercury

Huang

Cao

et al. 2012

Chin. J. Ocean. Limnol.

View full text Add to dashboard Cite

“…Changes in locomotion, coordination, and sensory response have been associated with Hg exposure in birds (Laties and Evans 1980;Bouton et al 1999;Spalding et al 2000), fish (Alvarez et al 2006;Jakka et al 2007), and amphibians (Burke et al 2010). Behavioral alterations in parent/offspring interactions (Nocera and Taylor 1998;Evers et al 2008), courtship (Frederick and Jayasena 2011), foraging (Olsen et al 2000) and singing (Hallinger et al 2010) have also been documented in a variety of bird species that were environmentally or experimentally exposed to Hg.…”

Section: Introductionmentioning

confidence: 94%

Dietary mercury exposure causes decreased escape takeoff flight performance and increased molt rate in European starlings (Sturnus vulgaris)

2014

View full text Add to dashboard Cite

Mercury is a widespread and persistent environmental contaminant that occurs in aquatic and terrestrial habitats. Recently, songbirds that forage from primarily terrestrial sources have shown evidence of bioaccumulation of mercury, but little research has assessed the effects of mercury on their health and fitness. There are many indications that mercury negatively affects neurological functioning, bioenergetics, and behavior through a variety of mechanisms and in a wide array of avian taxa. Effective flight is crucial to avian fitness and feather molt is an energetically expensive life history trait. Therefore, we investigated whether mercury exposure influenced flight performance and molt in a common songbird, the European starling (Sturnus vulgaris). Specifically, we dosed the diet of captive starlings with methylmercury cysteine at 0.0, 0.75, or 1.5 μg/g wet weight and recorded changes in flight performance after 1 year of dietary mercury exposure. We also recorded the annual molt of wing feathers. We found that individuals dosed with mercury exhibited decreased escape takeoff flight performance compared with controls and blood mercury was also correlated with an increased rate of molt, which can reduce flight performance and thermoregulatory ability. This study reveals two novel endpoints, flight performance and molt, that may be affected by dietary mercury exposure. These findings suggest a potential impact on wild songbirds exposed to mercury levels comparable to the high dosage levels in the present study. Any decrease in flight efficiency could reduce fitness due to a direct impact on survival during predation events or by decreased efficiency in other critical activities (such as foraging or migration) that require efficient flight.

show abstract

Maternal body burdens of methylmercury impair survival skills of offspring in Atlantic croaker (Micropogonias undulatus)

Cited by 72 publications

References 28 publications

Context‐dependent variability in the components of fish escape response: integrating locomotor performance and behavior

Context‐dependent variability in the components of fish escape response: integrating locomotor performance and behavior

Tissue-specific bioaccumulation and oxidative stress responses in juvenile Japanese flounder (Paralichthys olivaceus) exposed to mercury

Dietary mercury exposure causes decreased escape takeoff flight performance and increased molt rate in European starlings (Sturnus vulgaris)

Contact Info

Product

Resources

About