File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49383).jpg
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Summary
[edit]DescriptionBénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49383).jpg |
Français : Le bénitier commun (Tridacna Maxima), ou grand bénitier, est une espèce courante des récifs coralliens de la Mer Rouge, de l'Océan Indien et du Pacifique. Il est consommé par beaucoup de populations locales de ces océans, et même élevé artisanalement par endroits, notamment dans certains atolls des Tuamotu en Polynésie. Durant la journée, il laisse dépasser son épais manteau souvent très coloré (bleu, vert, violet...) pour assurer la photosynthèse de ses algues symbiotiques, qui contribuent à le nourrir ; il est cependant capable de le rétracter très rapidement et de se refermer d'un coup, brisant net tout objet qui pourrait se trouver entre ses deux solides valves réunies par un muscle extrêmement puissant. English: The common clam ( Tridacna Maxima ), or giant clam, is a common species of coral reefs in the Red Sea, the Indian Ocean and the Pacific. It is eaten by many local populations in these oceans, and even farmed artisanally in places, particularly in certain atolls of the Tuamotu in Polynesia. During the day, it lets its thick, often very colorful (blue, green, purple, etc.) mantle stick out to ensure the photosynthesis of its symbiotic algae, which contribute to feeding it; it is however capable of retracting it very quickly and closing suddenly, breaking any object that could be between its two solid valves joined by an extremely powerful muscle. |
Date | 21 May 2022 (upload date) |
Source | Bénitier commun (Tridacna Maxima) |
Author | Olivier Dugornay (IFREMER, Pôle Images, Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané, France) |
Other versions |
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Keywords InfoField | Shellfish; Bivalvia; Mollusc |
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current | 04:33, 6 October 2024 | 8,256 × 5,504 (21.5 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://image.ifremer.fr/data/00783/89474/hd/49383.jpg via Commons:Spacemedia |
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- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49384).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49385).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49386).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49387).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49388).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49389).jpg
- File:Bénitier commun (Tridacna Maxima) (Ifremer 00783-89474 - 49390).jpg
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON Z 7_2 |
Exposure time | 1/200 sec (0.005) |
F-number | f/13 |
ISO speed rating | 400 |
Date and time of data generation | 22:24, 21 May 2022 |
Lens focal length | 20 mm |
Latitude | 17° 48′ 21.75″ S |
Longitude | 149° 17′ 35.77″ W |
Image title | Le bénitier commun (Tridacna Maxima), ou grand bénitier, est une espèce courante des récifs coralliens de la Mer Rouge, de l'Océan Indien et du Pacifique. Il est consommé par beaucoup de populations locales de ces océans, et même élevé artisanalement par endroits, notamment dans certains atolls des Tuamotu en Polynésie. Durant la journée, il laisse dépasser son épais manteau souvent très coloré (bleu, vert, violet...) pour assurer la photosynthèse de ses algues symbiotiques, qui contribuent à le nourrir ; il est cependant capable de le rétracter très rapidement et de se refermer d'un coup, brisant net tout objet qui pourrait se trouver entre ses deux solides valves réunies par un muscle extrêmement puissant. |
Source | https://image.ifremer.fr/ |
Author | DUGORNAY Olivier |
Short title | Bénitier commun (Tridacna Maxima) |
Width | 8,256 px |
Height | 5,504 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
File change date and time | 10:09, 12 July 2022 |
Exposure Program | Shutter priority |
Date and time of digitizing | 22:24, 21 May 2022 |
APEX shutter speed | 7.6438555717468 |
APEX aperture | 7.40088 |
APEX exposure bias | −0.33333333333333 |
Subject distance | 0.32 meters |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTimeOriginal subseconds | 61 |
DateTimeDigitized subseconds | 61 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Custom process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 20 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 0.0.3.2 |
IIM version | 2 |