Consulta: creatorFacets:"Tabouret, Helene"
Registros recuperados: 5
Data/hora: 06/06/2024 00:42:09

Simultaneous use of strontium:calcium and barium:calcium ratios in otoliths as markers of habitat: Application to the European eel (Anguilla anguilla) in the Adour basin, South West France
Provedor de dados: 5
Autores: Tabouret, Helene; Bareille, G.; Claverie, F.; Pecheyran, C.; Prouzet, Patrick; Donard, O. F. X.
Sr:Ca and Ba:Ca ratios in water from the Adour estuary show a clear relationship with the salinity of the surrounding water for salinities &lt;20, while ratios are almost constant above this level of salinity. A Positive relationship was observed for the Sr:Ca ratio, whereas it was inverse for the Ba Ca ratio. These two elemental ratios were measured in the otoliths of the European eels (Anguilla anguilla L) using femtosecond laser ablation linked to an ICP-MS (fs-LA ICP-MS) There was a direct relationship between the elemental ratios recorded in eel otoliths and those found in water from fresh and marine areas, suggesting that Sr Ca and Ba:Ca ratios in eel otoliths can be used as markers of habitat in this estuary Continuous profiling allowed the...
Tipo: Text
Palavras-chave: Otoliths; Anguilla anguilla; Estuaries; Water chemistry; Strontium; Barium; Laser ablation; Inductively coupled plasma mass spectrometer.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00009/11990/9042.pdf

80’s population-specific compositions of two related anadromous shad species during the oceanic phase determined by microchemistry of archived otoliths
Provedor de dados: 5
Autores: Nachón, David José; Bareille, Gilles; Drouineau, Hilaire; Tabouret, Helene; Taverny, Catherine; Boisneau, Catherine; Berail, Sylvain; Pécheyran, Christophe; Claverie, Fanny; Daverat, Françoise.
The specific stock composition and dispersion of anadromous fish species aggregations in the marine environment are poorly known, while they can play a major role in the metapopulation dynamics. Otolith microchemistry has proven to be a powerful tool to address natal origins of anadromous fish. We used archived otolith microchemistry to investigate the population-specific composition of European shads (Alosa alosa and Alosa fallax) subadults in the ocean during the 80’s. The allocation of natal origin was addressed relying on contemporary water and juveniles signatures within a Bayesian model. A great discrimination of natal origin was obtained at the Biscay Gulf scale. However, the discrimination of 80’s natal origin for the southern rivers with similar...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00504/61562/65487.pdf

Methylmercury bioconcentration in muscle tissue of the European eel (Anguilla anguilla) from the Adour estuary (Bay of Biscay, France)
Provedor de dados: 5
Autores: Arleny, Ina; Tabouret, Helene; Rodriguez Gonzalez, Pablo Rodriguez; Bareille, Gilles; Donard, Olivier; Amouroux, David.
The life history of the European Eel (Anguilla anguilla) begins in the Sargasso Sea in the Atlantic Ocean where the Leptocephalus larvae drift with the gulf stream in order to reach European coastal waters. After their metamorphosis into transparent juveniles "glass" eels and an acclimatising phase in the estuaries, they migrate upstream into the rivers to become yellow eels (sub-adult stage). The yellow eels spend between 2 and 20 years of their lifetime in freshwater until they change into silver eels (adult stage) and finally migrate back to the Atlantic Ocean for spawning (Gomez-Mourelo, 2005). A. anguilla is thus an organism able to tolerate a wide range of environmental conditions, such as variations in oxygen availability, different ranges of...
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3072.pdf

Recherche des marqueurs d'exposition aux contaminants et de fréquentation des habitats chez l'anguille Anguilla anguilla de l'estuaire de l'Adour : de la réponse moléculaire à la microchimie de l'otolithe
Provedor de dados: 5
Autores: Tabouret, Helene.
In a context of decline of European eel (Anguilla anguilla L.) and search for biological markers of habitat use and quality, a multidisciplinary approach was engaged on the Adour estuary and its associated wetlands. Two axes were developed. The first axe aimed at highlighting the successive presence of the species in different ecosystems based on the otolith elemental composition. The second aimed at the evaluation of the chemical pressure underwent by eels based on the contaminant bioconcentration in soft tissues and the early molecular response to the chemical stress. With a view to the analyses of otolith elemental composition taking into account the 3D structure, the low elemental concentration in the matrix and keeping the finest spatial resolution,...
Tipo: Text
Palavras-chave: Adour; Polychlorinated biphenyls; Mercury; CYP1A1; Fs LA ICP MS; Microchemistry; Otolith; Anguilla anguilla; Adour; Polychlorobiphényles; Mercure; CYP1A1; Fs LA ICP MS; Microchimie; Otolithe; Anguilla anguilla.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/these-7381.pdf

Use of fish otoliths as a temporal biomarker of field uranium exposure
Provedor de dados: 5
Autores: Mounicou, S.; Frelon, S.; Le Guernic, A.; Eb-levadoux, Y.; Camilleri, V.; Fevrier, L.; Pierrisnard, S.; Carasco, L.; Gilbin, R.; Mahé, Kelig; Tabouret, Helene; Bareille, G.; Simon, O.
This study aimed to determine uranium (U) pollution over time using otoliths as a marker of fish U contamination. Experiments were performed in field contamination (~20 μg L−1: encaged fish: 15d, 50d and collected wild fish) and in laboratory exposure conditions (20 and 250 μg L−1, 20d). We reported the U seasonal concentrations in field waterborne exposed roach fish (Rutilus rutilus), in organs and otoliths. Otoliths were analyzed by ICPMS and LA-ICP SF MS of the entire growth zone. Concentrations were measured on transects from nucleus to the edge of otoliths to characterize environmental variations of metal accumulation. Results showed a spatial and temporal variation of U contamination in water (from 51 to 9.4 μg L−1 at the surface of the water...
Tipo: Text
Palavras-chave: Roach; Accumulation; Laser ablation ICP-MS.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61622/65534.pdf