Consulta: creatorFacets:"Sanjuan, Jane"
Registros recuperados: 8
Data/hora: 12/06/2024 07:31:44

Sublethal and histopathological effects of trace levels of tributyltin fluoride on adult oysters Crassostrea gigas
Provedor de dados: 5
Autores: Chagot, Dominique; Alzieu, Claude; Sanjuan, Jane; Grizel, Henri.
Shell malformations and histological effects of environmental concentrations of TBTF (2, 13.1 and 64.8 ng/!) were assessed on adult oysters Crassostrea gigas during a I-month experiment, incIuding both an exposure and a depuration phase. The results showed that the digestive gland is the primary target organ. Recoverable modifications were observed at the lowest concentration. Limited necrosis was observed at the highest concentration and a longer exposure could have led to extensive and irreversible tissue lesions. Shell malformations (chambering) were observed during the depuration phase. Finally the authors suggest that safe TBT levels in mariculture waters should be lower than 2 ng/l.
Tipo: Text
Palavras-chave: Histopathological effects; Crassostrea gigas; Tributyltin; Effets histopathologiques; Crassostrea gigas; Tributylétain.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/publication-2754.pdf

Détermination des critères pour juger de la nuisance des produits organohalogènes vis-à-vis du milieu marin
Provedor de dados: 5
Autores: Alzieu, Claude; Le Baut, Claire; Sanjuan, Jane.
Le danger des rejets dans l'environnement de substances organiques chlorées, comme le DDT et les PCB, est connu depuis de nombreuses années. En effet, les organochlorés sont largement utilisés dans l'industrie comme solvants et dans l'agriculture comme pesticides. En raison de leur persistance dans l'environnement, de leur accumulation dans les chaînes alimentaires et de leur grande toxicité (comparée à celle d'autres polluants comme les détergents ou les hydrocarbures), ils ont été déclarés indésirables dans le milieu naturel et en particulier le milieu marin.
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00046/15718/13120.pdf

Mise au point d'un test microcrustacé marin
Provedor de dados: 5
Autores: Marcaillou-le Baut, Claire; Le Dean, Loic; Chiffoleau, Jean-francois; Sanjuan, Jane.
Because of the low number of currently available toxicity tests for marine environment, the authors describe an experimental procedure using a marine copepod : Tigriopus brevicornis. This method can be used to quantify the 50 % inhibition of larval production or growth. The variability in controls larval production reaches about 9 %. The toxicity of two contaminants : tributyltin (TBTF) and cadmium chloride (CdCl2) was determined with this method and the 50 % decreases in larval production are respectively 1,4 µg/l (TBTF) and 61 µg/l (Cd++).
Tipo: Text
Palavras-chave: Test; Toxicité; Copépode; Étain; Cadmium; Test; Toxicity; Copepod; Tin; Cadmium.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00139/25036/23145.pdf

Dosage automatique du mercure total dans les organismes marins par fluorescence atomique
Provedor de dados: 5
Autores: Sanjuan, Jane; Cossa, Daniel.
L'utilisation d'une chaîne automatique pilotée par un micro-ordinateur permet le dosage du mercure total dans des minéralisats d'organismes marins à un rythme analytique élevé. Pour une prise d'essai de 0,3 g la précision est de 2 %, la justesse de 0,5 % et la limite de détection de 0,016 µg.g-1 (poids sec).
Tipo: Text
Palavras-chave: Dosage; Automatisme; Mercure; Tissus biologiques.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00143/25376/23515.pdf

Evolution temporelle du comportement estuarien du mercure: cas de l'estuaire de la Loire
Provedor de dados: 5
Autores: Knoery, Joel; Brach Papa, Christophe; Thomas, Bastien; Auger, Dominique; Chouvelon, Tiphaine; Crochet, Sylvette; Rozuel, Emmanuelle; Sanjuan, Jane; Thibault, Aubin; Chiffoleau, Jean-francois.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00212/32356/30812.pdf

Copper levels evolution in Arcachon bay oysters : role of the regulation on antifouling paints
Provedor de dados: 5
Autores: Alzieu, Claude; Barbier, Georges; Sanjuan, Jane.
The ban of tributyltin compounds in antifouling paints induced a strong decrease in the level of tin in Arcachon bay. At the same time, copper inputs have increased tenfold since 1982 owing to the widespread use of paints containing cuprous oxide. In spite of this large input, the statistical analysis of monitoring data (1979-1985) show a relative stability in the copper levels in Arcachon bay oysters.
Tipo: Text
Palavras-chave: Cuivre; Huîtres; Bassin d'Arcachon; Peintures antisalissures; Copper; Oysters; Arcachon Bay; Antifouling paints.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00022/13291/10337.pdf

Evolution des teneurs en cuivre des huîtres du Bassin d'Arcachon: influence de la législation sur les peintures antisalissures
Provedor de dados: 5
Autores: Alzieu, Claude; Barbier, Georges; Sanjuan, Jane.
The ban of tributyltin compounds in antifouling paints induced a strong decrease in the level of tin in Arcachon bay. At the same time, copper inputs have increased tenfold since 1982 owing to the widespread use of paints containing cuprous oxide. In spite of this large input, the statistical analysis of monitoring data (1979-1985) show a relative stability in the copper levels in Arcachon bay oysters.
Tipo: Text
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00155/26605/25506.pdf

Evaluation of dissolved and particulate arsenic flux in the Dover strait (fluxmanche program)
Provedor de dados: 5
Autores: Michel, Pierre; Averty, Bernard; Noel, Joelle; Sanjuan, Jane.
In order to estimate arsenic flux from the English Channel toward the North Sea, 168 samples were obtained from September 1990 to November 1991 along a transect between Boulogne and Folkestone comprising six stations and two depths. Organic and inorganic arsenic were measured in dissolved phase and total arsenic in suspended particles. The mean concentration of dissolved total arsenic in water was 1.38 +/- 0.12 mug.l-1. The variability of measured concentrations was low, particularly for the four intermediate stations. Results were slightly more sensitive for English (1.38 +/- 0.12 mug.l-1) and French (135 +/- 0.11 mug.l-1) coastal stations due to exchanges with shallower sediments. Dissolved organic arsenic was nearly negligible from December to March...
Tipo: Text
Palavras-chave: ARSENIC MMA; DMA TRACE ELEMENTS ENGLISH CHANNEL NORTH SEA.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00100/21079/18704.pdf