Endocrine-related reproductive effects in molluscs

Ketata, I.; Denier, Xavier; Hamza-Chaffai, Amel; Minier, Christophe

doi:10.1016/j.cbpc.2007.11.007

Cited by 66 publications

(52 citation statements)

References 98 publications

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“…Furthermore, these organisms are relevant for analysis given their abundance in nature, their ecological importance, and their use as bioindicators in monitoring water pollution (Ketata et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Saavedra¹,

Leonardi²,

Morín³

et al. 2012

Rev. biol. mar. oceanogr.

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Section: Introductionmentioning

confidence: 99%

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Saavedra¹,

Leonardi²,

Morín³

et al. 2012

Rev. biol. mar. oceanogr.

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“…As for clams, a wide range of ALP levels was determined in species like Tapes philippinarum and Mya arenaria, with males exhibiting a similar range of variation when exposed to contaminants in the field and the laboratory (Table 3). Molluscs are a very diverse group with great inter-specific variability, including anatomical, physiological and metabolic traits, which may lead to unique susceptibilities to EDCs (Ketata et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Pereira¹,

Gomes²,

Cardoso³

et al. 2013

Sci. Mar.

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SUMMARY: Estuaries are highly productive ecosystems that have been increasingly affected by anthropogenic activities. In this study, the presence of endocrine disrupting compounds (EDCs) and their relation to oxidative stress were assessed in two bivalve species (mussels Mytilus galloprovincialis and clams Ruditapes decussatus) from the Ria Formosa Lagoon (south Portugal). We applied the alkali-labile phosphate (ALP) assay to determine vitellogenin-like protein levels, and the lipid peroxidation (LPO) method to assess oxidative damage. Mussels and clams exhibited the same pattern of ALP concentrations, with no differences between genders and higher levels in winter. R. decussatus showed higher ALP values than M. galloprovincialis, possibly associated with a stronger responsiveness of clams to EDCs or due to the influence of the reproductive cycle. Mussels exhibited a more evident seasonal effect for LPO, indicating that these organisms are more influenced by seasonal fluctuations in the water column compared to the sediment-associated clams. Both species appear to be under the influence of EDC exposure (which could induce Vg-like protein synthesis) and oxidative stressors (leading to lipid peroxidation) in the Ria Formosa Lagoon, particularly in winter, reflecting the presence of different contaminants in Ria Formosa and environmental changes, as well as complex interactions between them.Keywords: Ria Formosa Lagoon, Mytilus galloprovincialis, Ruditapes decussatus, endocrine disruption, vitellogenin-like proteins, lipid peroxidation. RESUMEN: Variabilidad interespecífica de disruptores endocrinos y estrés oxidatiVo en dos especies de biValVos de la ría formosa (costa sur de portugal). -Los estuarios son ecosistemas altamente productivos afectados por actividades antropogénicas. En este trabajo, la presencia de compuestos disruptores endocrinos (EDCs) y su relación con estrés oxidativo se ha evaluado en los bivalvos Mytilus galloprovincialis y Ruditapes decussatus en la laguna Ría Formosa (Portugal). Se utilizó el ensayo de fosfatos lábil alcalinos (ALP) para determinar los niveles de proteína tipo-vitelogenina y el método de peroxidación lipídica (LPO) para evaluar los daños oxidativos. Ambas especies exhibieron el mismo patrón de concentración de ALP: no hubo diferencias entre sexos pero si niveles más altos en invierno. R. decussatus presentó valores mayores de ALP que M. galloprovincialis posiblemente asociados a una capacidad de respuesta más elevada a los EDCs o al estado del ciclo reproductor. Los mejillones, al no estar asociados al sedimento como las almejas, mostraron variaciones estacionales en las concentraciones de LPO, indicando mayor sensibilidad a fluctuaciones ambientales en la columna de agua. Ambas especies parecen estar influenciadas (principalmente en invierno) por EDCs (posiblemente induciendo la síntesis de proteína tipo-vitelogenina) y factores de estrés oxidativo (activando la peroxidación lipídica); lo que refleja la presencia de diferentes contaminantes en la Ría Formosa y los cambios a...

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“…In female caenogastropods, the neoformation of a penis or vas deferens in individuals exposed to TBT is known as imposex (Gibbs & Bryan, 1996). Because imposex is irreversible (Stroben et al, 1992) researchers worldwide have used this phenomenon as a marine pollution biomarker associated to maritime traffic (Axiak et al, 2003, Ketata et al, 2008. In areas highly polluted with TBT, sterile females and population declines have been observed (Oehlmann et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Variability of imposex development and reproductive alterations in the Patagonian gastropod Buccinanops globulosus inhabiting a polluted harbour area

Primost

Averbuj

Bigatti

2014

MACN

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Abstract:The aim of this work was to study the reproductive output and imposex parameters of the caenogastropod Buccinanops globulosus inhabiting a harbour area, with high maritime traffic and pollution. The results showed higher imposex incidence for non-gravid females than for gravid females (carrying egg capsules). Among imposex-affected females, mean penis size was significantly larger in non-gravid (3.4 mm) than gravid (1.5 mm) females. In B. globulosus usually a single juvenile hatches per egg capsule, but in this study capsules with multiple embryos were found. Overall, these results suggest a relationship between imposex development and alterations on the reproductive output of B. globulosus females living in adverse environmental conditions (polluted area).Key words: Maritime traffic, Offspring, Pollution, Reproduction, TBT.Resumen: El objetivo de este trabajo fue estudiar parámetros reproductivos y desarrollo de imposex en el caenogasterópodo Buccinanops globulosus que habita en una zona portuaria de alto tráfico marítimo y con presencia de contaminantes. Los resultados mostraron una mayor incidencia de imposex en hembras sin ovicápsulas que en hembras con ovicápsulas. Entre las hembras con imposex, el desarrollo del pene fue significativamente mayor en aquellas sin ovicápsulas (3.4 mm) que en las hembras con ovicápsulas (1,5 mm). En B. globulosus comúnmente un solo juvenil eclosiona por cada cápsula, sin embargo, en este estudio se registraron capsulas con múltiples embriones. Todos estos resultados sugieren una relación entre el desarrollo de imposex y alteraciones en los parámetros reproductivos de las hembras de B. globulosus que habitan en sitios con condiciones ambientales adversas (área contaminada).

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Endocrine-related reproductive effects in molluscs

Cited by 66 publications

References 98 publications

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Variability of imposex development and reproductive alterations in the Patagonian gastropod Buccinanops globulosus inhabiting a polluted harbour area

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Endocrine-related reproductive effects in molluscs

Cited by 66 publications

References 98 publications

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17&#946;-estradiol

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17&#946;-estradiol

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Variability of imposex development and reproductive alterations in the Patagonian gastropod Buccinanops globulosus inhabiting a polluted harbour area

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Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol

Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol