File:Yeux et tentacules d'une coquille Saint-Jacques (Pecten maximus) (Ifremer 00570-68227 - 49129).jpg
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Summary
DescriptionYeux et tentacules d'une coquille Saint-Jacques (Pecten maximus) (Ifremer 00570-68227 - 49129).jpg |
Français : La coquille Saint-Jacques (Pecten maximus) est un mollusque bivalve présent dans les eaux européennes tempérées, de la Norvège à l'Espagne. On observe sur cette série photographique ses tentacules et yeux : la coquille Saint-Jacques a pour particularité d'avoir jusqu'à 200 yeux d'un bleu-vert. Situés sur le bord de son manteau, qui couvre tout le pourtour du mollusque, ses yeux mesurent jusqu'à 1 mm de diamètre et sont construits à la manière de multiples miroirs concaves reflétant la lumière vers la rétine du mollusque : ils lui permettent ainsi d'avoir un champ visuel très large. English: The scallop ( Pecten maximus ) is a bivalve mollusc found in temperate European waters, from Norway to Spain. This photographic series shows its tentacles and eyes: the scallop has the particularity of having up to 200 blue-green eyes. Located on the edge of its mantle, which covers the entire circumference of the mollusc, its eyes measure up to 1 mm in diameter and are built like multiple concave mirrors reflecting light towards the mollusc's retina: they thus allow it to have a very wide field of vision. |
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Date | 21 November 2010 (upload date) | |||||||||
Source | Yeux et tentacules d'une coquille Saint-Jacques (Pecten maximus) | |||||||||
Author | Olivier Dugornay (IFREMER, Pôle Images, Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané, France) | |||||||||
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Keywords InfoField | Scallops; Bivalvia; Mollusc |
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Items portrayed in this file
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image/jpeg
2,832 pixel
4,256 pixel
7,059,647 byte
461c328964d92348223ace617af016faa0c09ac8
21 November 2010
5twztqoujier74di5ys4zmdypgpoeepnqrgbktsvo05vhj3jtt
0.004 second
200
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:21, 27 December 2024 | 4,256 × 2,832 (6.73 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://image.ifremer.fr/data/00570/68227/hd/49129.jpg via Commons:Spacemedia |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D700 |
Copyright holder | Olivier Dugornay Ifremer |
Exposure time | 1/250 sec (0.004) |
F-number | f/0 |
ISO speed rating | 200 |
Date and time of data generation | 22:31, 21 November 2010 |
Lens focal length | 0 mm |
Latitude | 48° 19′ 46.64″ N |
Longitude | 4° 26′ 32.01″ W |
Image title | La coquille Saint-Jacques (Pecten maximus) est un mollusque bivalve présent dans les eaux européennes tempérées, de la Norvège à l'Espagne. On observe sur cette série photographique ses tentacules et yeux : la coquille Saint-Jacques a pour particularité d'avoir jusqu'à 200 yeux d'un bleu-vert. Situés sur le bord de son manteau, qui couvre tout le pourtour du mollusque, ses yeux mesurent jusqu'à 1 mm de diamètre et sont construits à la manière de multiples miroirs concaves reflétant la lumière vers la rétine du mollusque : ils lui permettent ainsi d'avoir un champ visuel très large. |
Source | https://image.ifremer.fr/ |
Author | DUGORNAY Olivier |
Short title | Yeux et tentacules d'une coquille Saint-Jacques (Pecten maximus) |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Capture NX 2.2.8 W |
File change date and time | 11:25, 24 November 2011 |
White point chromaticity |
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Chromaticities of primarities |
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Color space transformation matrix coefficients |
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Y and C positioning | Centered |
Pair of black and white reference values |
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Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 22:31, 21 November 2010 |
Meaning of each component |
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Exposure bias | 1 |
Maximum land aperture | 0 APEX (f/1) |
Metering mode | Center weighted average |
Light source | Fine weather |
Flash | Flash fired, strobe return light detected, compulsory flash firing |
DateTime subseconds | 73 |
DateTimeOriginal subseconds | 73 |
DateTimeDigitized subseconds | 73 |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 0 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 |