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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-007-0190-9
|2 doi
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|a pubmed24n0591.xml
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|a (DE-627)NLM177248939
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|a (NLM)18236155
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Stachowski-Haberkorn, Sabine
|e verfasserin
|4 aut
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| 245 |
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|a In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas)
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.09.2008
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|a Date Revised 20.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Effects of the herbicide Basamaïs (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mum filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 microg l(-1), oysters treated with a mix of 10 microg l(-1) Opus and 10 microg l(-1) Basamaïs showed a 50% growth reduction compared with the control (P < 0.0001), suggesting a synergistic effect of these contaminants. Laboratory controls in microcosms maintained in a water bath with filtered natural light, were not significantly different from in-situ microcosm controls in the field, for organic weight content or growth. This in-situ experiment in microcosms allowed us to conclude that: (1) oyster spat can achieve significant growth in bottles immersed in situ without supplementary food; (2) this microcosm system is reliable and easy to use for environmental toxicity tests with C. gigas spat; (3) such microcosm systems can also be run in a laboratory water bath instead of more technically difficult immersed field experiments; (4) the synergistic effect observed here, at a concentration simulating a peak agricultural runoff event, suggests that the impacts of pesticides could be a real threat for oysters in estuarine areas
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Benzothiadiazines
|2 NLM
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| 650 |
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7 |
|a Epoxy Compounds
|2 NLM
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| 650 |
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|a Fungicides, Industrial
|2 NLM
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| 650 |
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7 |
|a Herbicides
|2 NLM
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| 650 |
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|a Triazoles
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a bentazone
|2 NLM
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| 650 |
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7 |
|a R4S7ZGZ9CT
|2 NLM
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| 650 |
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7 |
|a epoxiconazole
|2 NLM
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| 650 |
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7 |
|a U80T84L776
|2 NLM
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| 700 |
1 |
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|a Quiniou, Françoise
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nedelec, Morgane
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Robert, René
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Limon, Gwendolina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a de la Broise, Denis
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 17(2008), 4 vom: 23. Mai, Seite 235-45
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
1 |
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|g volume:17
|g year:2008
|g number:4
|g day:23
|g month:05
|g pages:235-45
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| 856 |
4 |
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|u http://dx.doi.org/10.1007/s10646-007-0190-9
|3 Volltext
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|a AR
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|d 17
|j 2008
|e 4
|b 23
|c 05
|h 235-45
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