File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43664).jpg
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Summary
[edit]DescriptionZoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43664).jpg |
Français : Cette série de photographies représente le détail d'une coque de barque, sur une plage à marée basse, atteinte de biofouling. Le biofouling est un phénomène apparaissant en milieu aqueux ou humide à la surface d’un objet immergé dans ce milieu. Ce phénomène s’explique par le développement de micro et/ou de macro-organismes à la surface de l’objet immergé. Dans l’environnement marin particulièrement, tous les substrats, vivants ou morts, naturels ou artificiels, sont rapidement colonisés par ces organismes présents naturellement dans l’eau de mer (végétaux ou animaux). On peut observer ici différentes espèces animales et végétales, telles que des moules, des balanes et des algues. Dans la navigation maritime, ce phénomène est un réel problème, car il provoque un ralentissement du moyen de transport et une dégradation du matériau. English: This series of photographs shows the detail of a boat hull, on a beach at low tide, affected by biofouling. Biofouling is a phenomenon that appears in an aqueous or humid environment on the surface of an object immersed in this environment. This phenomenon is explained by the development of micro and/or macro-organisms on the surface of the immersed object. In the marine environment in particular, all substrates, living or dead, natural or artificial, are quickly colonized by these organisms naturally present in seawater (plants or animals). Here we can observe different animal and plant species, such as mussels, barnacles and algae. In maritime navigation, this phenomenon is a real problem, because it causes a slowdown in the means of transport and a degradation of the material. |
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Date | 25 January 2012 (upload date) | |||||||||
Source | Zoom sur le biofouling d'une coque de bateau | |||||||||
Author | Olivier Dugornay (Ifremer) | |||||||||
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Keywords InfoField | Shellfish; Algae; Biofouling |
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File history
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current | 11:31, 2 January 2025 | 4,256 × 2,832 (8.68 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://image.ifremer.fr/data/00567/67892/hd/43664.jpg via Commons:Spacemedia |
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File usage on Commons
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- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43658).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43659).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43660).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43661).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43662).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43665).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43666).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43667).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43668).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43669).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43670).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43671).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43672).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43673).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43675).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43676).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43677).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43678).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43679).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43680).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43681).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43682).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43683).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43684).jpg
- File:Zoom sur le biofouling d'une coque de bateau (Ifremer 00567-67892 - 43685).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 D700 |
Author | Michel Gouillou |
Copyright holder | Ifremer |
Exposure time | 1/100 sec (0.01) |
F-number | f/8 |
ISO speed rating | 500 |
Date and time of data generation | 13:49, 25 January 2012 |
Lens focal length | 34 mm |
User comments | www.ifremer.fr |
Orientation | Normal |
Horizontal resolution | 0 dpi |
Vertical resolution | 0 dpi |
Software used | ViewNX 2.2 W |
File change date and time | 15:31, 27 January 2012 |
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 | 13:49, 25 January 2012 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Fine weather |
Flash | Flash fired, strobe return light detected, compulsory flash firing |
DateTime subseconds | 08 |
DateTimeOriginal subseconds | 08 |
DateTimeDigitized subseconds | 08 |
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 | 34 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 0.0.2.2 |