File:Ecrevisse de Louisiane. Muséum La Rochelle.jpg
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DescriptionEcrevisse de Louisiane. Muséum La Rochelle.jpg |
Français : Écrevisse de Louisiane. Procambarus clarkii (Girard, 1852). Origine Amérique du nord. Muséum d'histoire naturelle de La Rochelle. Rez-de-chaussée, salle 4 : Le marais, un territoire menacé. Janvier 2013. Fiche parcours du musée (citation condensée): Introduite en France pour ses qualités gustatives au XXe s. Plus grande et plus agressive que l'écrevisse à pattes blanches, traditionnelle dans la région, avec laquelle elle est entrée en compétition. Moins exigeante sur la qualité de l'eau, elle colonise toutes les zones du marais dont elle consomme les plantes, ainsi que les oeufs et les larves des animaux aquatiques. Fragilise les berges en y creusant des galeries. |
Date | 6 January 2013, 12:46:10 (according to Exif data) |
Source | Own work |
Author | Ismoon (talk) 22:41, 8 January 2013 (UTC) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:41, 8 January 2013 | 2,500 × 1,774 (2.09 MB) | Ismoon (talk | contribs) | {{Information |Description={{fr|Écrevisse de Louisiane. ''Procambarus clarkii'' (Girard, 1852). Origine Amérique du nord. Muséum d'histoire naturelle de La Rochelle. Rez-de-chaussée, salle 4 : ''Le marais, un territoire menacé''. Janvier 2013. Fic... |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot G11 |
Exposure time | 1/25 sec (0.04) |
F-number | f/4.5 |
ISO speed rating | 800 |
Date and time of data generation | 12:46, 6 January 2013 |
Lens focal length | 24.978 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 23:11, 8 January 2013 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:46, 6 January 2013 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 4.65625 |
APEX aperture | 4.34375 |
APEX exposure bias | 0 |
Maximum land aperture | 4.34375 APEX (f/4.51) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 12,493.150684932 |
Focal plane Y resolution | 12,493.150684932 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
IIM version | 2 |