The metabolic and fitness costs associated with metal resistance in Nereis diversicolor

Pook, Chris; Lewis, Ceri; Galloway, Tamara S.

doi:10.1016/j.marpolbul.2009.02.003

Cited by 75 publications

(33 citation statements)

References 49 publications

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“…The lipid content was approximately 25-50 mg/g wet weight (2.5-5%), which is in the same range as the 23% content dry weight (4.7% wet weight) reported by Bruns et al (2001) and higher than the 1.23% wet weight reported for the earthworm Lumbricus terrestris by Albro et al (1992). The protein content is similar to other reports (Pook et al 2009), who reported mean values of 200-300 mg protein per gram dry weight in Nereis diversicolor. No other published data for Enchytraeids were found.…”

Section: Basic Energy Allocationsupporting

confidence: 87%

Energy Basal Levels and Allocation among Lipids, Proteins, and Carbohydrates in Enchytraeus albidus: Changes Related to Exposure to Cu Salt and Cu Nanoparticles

Amorim

Gomes

Soares

et al. 2011

Water Air Soil Pollut

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Energy intake and allocation are mainly used to maintain body functions, such as locomotion, growth, and reproductive output. It has been observed that environmental pollutants can affect the energy allocation either due to a cost of handling toxicants or because the toxicant interacts with the storage processes within the organisms. Less than a handful of studies are available reporting the effect of toxicants on energy reserves in enchytraeids and no studies have dealt with the influence of nanomaterials. The present paper shows results on the basal energy reserves (lipids, carbohydrates, and proteins) in Enchytraeus albidus and the influence of copper (Cu) salt and Cu nanoparticles on these reserves for two exposure durations. The energy allocation levels follow what has been reported for other worm species, although lower carbohydrate levels were observed. There were clear differences between worms exposed to control soils and those exposed to Cu for 3 weeks, but no difference after 6 weeks exposure. There was no apparent difference between the impacts of the two Cu exposure forms.

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Section: Basic Energy Allocationsupporting

confidence: 87%

Energy Basal Levels and Allocation among Lipids, Proteins, and Carbohydrates in Enchytraeus albidus: Changes Related to Exposure to Cu Salt and Cu Nanoparticles

Amorim

Gomes

Soares

et al. 2011

Water Air Soil Pollut

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“…For instance, the upper regions of the three systems showed peaks of abundance of nereidids and this was also observed in estuaries in other regions of the world (e.g. Deaton and Greenberg, 1986;Pook et al, 2009). In a similar way (i.e.…”

Section: Discussionsupporting

confidence: 63%

Subtidal benthic macroinfaunal assemblages in tropical estuaries: Generality amongst highly variable gradients

Barros

Carvalho

Costa

et al. 2012

Marine Environmental Research

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“…Mireji et al (2010) reported that selected strains of resistant mosquitoes (Anopheles gambiae) to copper and lead showed a lower reproductive and survival performance than control strains. In the non arthropod species Nereis diversicolor, Durou et al (2005) and Pook et al (2009) found that worms inhabiting metal contaminated sites in France (Seine estuary) and UK (Restrongut Creek, Corwall) exhibited high levels of resistance to zinc and copper but a depletion of energy reserves and/or mass specific fecundity that could be interpreted as a cost of resistance.…”

Section: Genetic By Environment Effectsmentioning

confidence: 99%

Life-history consequences of adaptation to pollution. “Daphnia longispina clones historically exposed to copper”

2011

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The present study was conducted to assess life history effects of adaptation to pollution in Daphnia longispina clones historically exposed to an acid mine drainage from an abandoned pyrite mine. Four sensitive and resistant clones from reference and impacted populations were exposed to a range of copper exposure levels and their life history and physiological responses in terms of survival, reproduction, respiration and feeding rates compared. The most resistant clone was from 16 to 48 fold more tolerant to copper in terms of LC(50) and population growth rates than sensitive ones, respectively. The genetic differences between the resistant and sensitive clones were that in the polluted environment individuals of the resistant clone survived 50% better, reproduced 3 days earlier, grew 20% better, produced three more offspring per day and had population growth rates 45% greater. In the unpolluted environment, however, individuals from the resistant clone had the lowest reproduction and somatic growth rates but equivalent population growth rates, than sensitive daphnids. Thus, these life history changes did not translate into lower fitness in unpolluted environments in terms of population growth rates. Observed higher respiration rates of the most resistant clone support in part the energy cost hypothesis of tolerance, whereas increase feeding, reproduction and growth rates across copper exposure levels may also, indicate that resistant individuals need copper to fulfil they physiological demands thus supporting the metal deficiency hypothesis as well.

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The metabolic and fitness costs associated with metal resistance in Nereis diversicolor

Cited by 75 publications

References 49 publications

Energy Basal Levels and Allocation among Lipids, Proteins, and Carbohydrates in Enchytraeus albidus: Changes Related to Exposure to Cu Salt and Cu Nanoparticles

Energy Basal Levels and Allocation among Lipids, Proteins, and Carbohydrates in Enchytraeus albidus: Changes Related to Exposure to Cu Salt and Cu Nanoparticles

Subtidal benthic macroinfaunal assemblages in tropical estuaries: Generality amongst highly variable gradients

Life-history consequences of adaptation to pollution. “Daphnia longispina clones historically exposed to copper”

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