Modelling growth and bioaccumulation of Polychlorinated biphenyls in common sole (Solea solea)

Eichinger, Marie; Loizeau, Véronique; Roupsard, François; Guellec, A.-M. Le; Bacher, Cédric

doi:10.1016/j.seares.2010.05.005

Cited by 22 publications

(23 citation statements)

References 47 publications

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“…Congeners can be eliminated by excretion and/or by biotransformation (Eichinger et al, 2010), and are only excreted after they are metabolized (Goerke and Weber, 2001).…”

Section: Pcb Congeners In P Flesusmentioning

confidence: 99%

“…flesus is a highly exploited commercial species, but can be particularly vulnerable to chronic and accidental pollution, due their benthic lifestyle and to the fact that nurseries are located in estuarine areas (Eichinger et al, 2010). Recently, the European Union has recommended a tolerance limit of 75 ng g À1 (wet wt.…”

Section: P Flesus Physiological Conditionsmentioning

confidence: 99%

“…Nevertheless, HCB is still present in the environment as an unintended by-product in chemical processes, incomplete combustion and an impurity in pesticides (Barber et al, 2005). Polychlorinated biphenyls (PCBs) are synthetic organic chemicals, which tend to accumulate in organisms, due to their lipophilic properties (Eichinger et al, 2010). PCBs were introduced in the environment in the 1920s, and due to its high persistence in the environment were banned in many countries in 1970s (Bodiguel et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Organochlorine contaminants in different tissues from Platichthys flesus (Pisces, Pleuronectidea)

Baptista¹,

Pato²,

Duarte³

et al. 2013

Chemosphere

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h i g h l i g h t sPlatichthys flesus muscle, liver and gills were analysed for PCBs and HCB. P. flesus was analysed along its lifespan, liver presented the highest concentration. P. flesus HCB concentration increased in the 3 tissues along the species lifespan. P. flesus PCB concentration decreased in the 3 tissues along the species lifespan. P. flesus is considered safe for human intake, regarding PCBs and HCB. a r t i c l e i n f o t r a c tPolychlorinated biphenyls (PCBs) and hexachlorobenzene (HCB) are organic contaminants that tend to accumulate in fish. Estuaries are exposed to high anthropogenic activities, therefore tending to accumulate more contaminants than the adjacent coastal waters. Platichthys flesus, a fish with high economic value, was analysed for PCBs and HCB along its different age groups, in liver, gills, gonads and muscle. Younger fishes were caught in the estuary, whereas older fishes were caught in the adjacent coastal waters and acquired at Figueira da Foz Regional Office of Docapesca-Portos e Lotas, SA. Both contaminants concentrations follow the pattern: liver > gills > muscle. Hepatosomatic index had the lowest values in younger fishes and the highest values in older fishes. Condition factor values remain stable with age. Younger fishes had higher PCBs concentrations than the older fishes. In opposition HCB was only detected in fish from 3+ to 5+ and its concentration tended to increase with age. Overall P. flesus is considered safe for human intake.

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“…Congeners can be eliminated by excretion and/or by biotransformation (Eichinger et al, 2010), and are only excreted after they are metabolized (Goerke and Weber, 2001).…”

Section: Pcb Congeners In P Flesusmentioning

confidence: 99%

Section: P Flesus Physiological Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Organochlorine contaminants in different tissues from Platichthys flesus (Pisces, Pleuronectidea)

Baptista¹,

Pato²,

Duarte³

et al. 2013

Chemosphere

View full text Add to dashboard Cite

show abstract

“…It is capital to link any toxico-kinetic module with the energetics of the organism (e.g. van Haren et al, 1994;Bodiguel et al, 2009;Ng and Gray, 2009;Eichinger et al, 2010). However the details around how water chemistry (e.g.…”

Section: Deviations From the Extended One Compartment Toxico-kinetic mentioning

confidence: 99%

Effects of uranium on the metabolism of zebrafish, Danio rerio

et al. 2012

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The increasing demand for nuclear energy results in heightened levels of uranium (U) in aquatic systems which present a potential health hazard to resident organisms. The aim of this study was to mechanistically assess how chronic exposure to environmentally relevant concentrations of U perturbs the complex interplay between feeding, growth, maintenance, maturation and reproduction throughout the life-cycle of an individual. To this end we analysed literature-based and original zebrafish toxicity data within a same mass and energy balancing conceptual framework. U was found to increase somatic maintenance leading to inhibition of spawning as well as increase hazard rate and costs for growth during the early life stages. The fish's initial conditions and elimination through reproduction greatly affected toxico-kinetics and effects. We demonstrate that growth and reproduction should be measured on specific individuals since mean values were hardly interpretable. The mean food level differed between experiments, conditions and individuals. This last 'detail' contributed substantially to the observed variability by its combined effect on metabolism, toxic effects and toxico-kinetics. The significance of this work is that we address exactly how these issues are related and derive conclusions which are independent of experimental protocol and coherent with a very large body of literature on zebrafish eco-physiology.

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“…To calculate the maximum ingestion rate we used the maximum surface area-specific ingestion rate for plaice (548 Jd −1 cm −2 [19]), and for sole (460 Jd −1 cm −2 [20]). The energy content of the resource polychaete worms (23 kJg −1 ) [21], was converted to wet weight using 16% as ash free dry weight to wet weight ratio [22].…”

Section: Introductionmentioning

confidence: 99%

Interspecific Resource Competition Effects on Fisheries Revenue

Wolfshaar

Schellekens²,

Poos

et al. 2012

PLoS ONE

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In many fisheries multiple species are simultaneously caught while stock assessments and fishing quota are defined at species level. Yet species caught together often share habitat and resources, resulting in interspecific resource competition. The consequences of resource competition on population dynamics and revenue of simultaneously harvested species has received little attention due to the historical single stock approach in fisheries management. Here we present the results of a modelling study on the interaction between resource competition of sole (Solea solea) and slaice (Pleuronectus platessa) and simultaneous harvesting of these species, using a stage-structured population model. Three resources were included of which one is shared with a varied competition intensity. We find that plaice is the better competitor of the two species and adult plaice are more abundant than adult sole. When competition is high sole population biomass increases with increasing fishing effort prior to plaice extinction. As a result of this increase in the sole population, the revenue of the stocks combined as function of effort becomes bimodal with increasing resource competition. When considering a single stock quota for sole, its recovery with increasing effort may result in even more fishing effort that would drive the plaice population to extinction. When sole and plaice compete for resources the highest revenue is obtained at effort levels at which plaice is extinct. Ignoring resource competition promotes overfishing due to increasing stock of one species prior to extinction of the other species. Consequently, efforts to mitigate the decline in one species will not be effective if increased stock in the other species leads to increased quota. If a species is to be protected against extinction, management should not only be directed at this one species, but all species that compete with it for resource as well.

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Modelling growth and bioaccumulation of Polychlorinated biphenyls in common sole (Solea solea)

Cited by 22 publications

References 47 publications

Organochlorine contaminants in different tissues from Platichthys flesus (Pisces, Pleuronectidea)

Organochlorine contaminants in different tissues from Platichthys flesus (Pisces, Pleuronectidea)

Effects of uranium on the metabolism of zebrafish, Danio rerio

Interspecific Resource Competition Effects on Fisheries Revenue

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