File:Duckweed - Family lemnaceae (5760617740).jpg
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Summary[edit]
DescriptionDuckweed - Family lemnaceae (5760617740).jpg |
The smallest and most precious flowering plant in Montana de Oro State Park. Duckweed's Role in the habitat: Duckweed is an important food for wild waterfowl and fish both directly and as a source of food for small creature that are in turn eaten by the birds and fish. As it grows, Duckweed absorbs nutrients from the water. Thus it has a useful role in controlling the growth of algae, both by removing nutrients and by shutting out sunlight as the Duckweed covers the water surface. Algae absorbs oxygen, as it decays, it further reduces oxygen levels. Algal blooms can severely affect aquatic life. By shading the water, Duckweed also keeps it cool and allow for more dissolved oxygen. By covering the water surface, it minimizes water loss through evaporation. (Jerry, we can add it to our Pecho Ranch Day plant display on July 9th.) |
Date | |
Source | Duckweed - Family lemnaceae |
Author | Joyce Cory on Flickr as docentjoyce |
Camera location | 35° 16′ 20.61″ N, 120° 53′ 21.35″ W | View this and other nearby images on: OpenStreetMap | 35.272391; -120.889263 |
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Licensing[edit]
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This image was originally posted to Flickr by docentjoyce at https://flickr.com/photos/99003655@N00/5760617740. It was reviewed on 13 October 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 October 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:01, 13 October 2020 | 3,072 × 2,304 (1.03 MB) | NeoMeesje (talk | contribs) | Transferred from Flickr via #flickr2commons |
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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 | Panasonic |
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Camera model | DMC-FZ8 |
Exposure time | 1/125 sec (0.008) |
F-number | f/3.2 |
ISO speed rating | 100 |
Date and time of data generation | 11:23, 22 May 2011 |
Lens focal length | 6.2 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Elements 2.0 |
File change date and time | 15:54, 22 May 2011 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 11:23, 22 May 2011 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
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 |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 37 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Hard |
Saturation | Normal |
Sharpness | Hard |