File:Bioturbation-in-a-Declining-Oxygen-Environment-in-situ-Observations-from-Wormcam-pone.0034539.s002.ogv
Bioturbation-in-a-Declining-Oxygen-Environment-in-situ-Observations-from-Wormcam-pone.0034539.s002.ogv (Ogg Theora video file, length 26 s, 272 × 360 pixels, 437 kbps, file size: 1.33 MB)
Captions
Captions
Summary
[edit]DescriptionBioturbation-in-a-Declining-Oxygen-Environment-in-situ-Observations-from-Wormcam-pone.0034539.s002.ogv |
English: Observations from 22 July to 7 August, 2009. The DO concentration declines from ∼1.5 mg O2 l−1 at the start to ∼0.1 mg O2 l−1 at the end. During this time burrows are created and destroyed, and as DO concentration declines burrowing activity decreases. On multiple occasions you can see small fish swimming around during hypoxia in DO concentrations as low as 1.0 mg O2 l−1. As the DO concentration continues to decline towards the end of the movie, the upper layer of sediment becomes reduced (black in color) and small stringy-white bacteria, likely Beggiatoa spp., can be observed migrating through the sediment to the surface. The below table details, though not limited to, some specific behavioral observations. This movie depicts a sequence of images captured every hour, running at a frame rate of 15 hours per second. The black marks around the image are in cm units; date, time, and corresponding DO concentration for the image is indicated at the top and bottom, respectively. The graph below the image displays the DO concentration for the time-span of the movie, and the blue circle bounces around while the movie is played indicating the corresponding DO concentration. Note that this movie is not comprehensive of all the images captured by Wormcam during the time period and if the exhaustive images and movies want to be viewed please feel free to contact the corresponding author. No. Description. Day; Hour 1. Worm in u-shaped burrow. 22-Jul; 21:00 2. Worm extending body above sediment surface. 31-Jul; 03:00 3. Small fish on surface of sediment (center of image). 26-Jul; 09:00 4. Small fish on surface of sediment (center of image). 28-Jul; 08:00 5. Small fish swimming around in low DO. 28-Jul; 12:00 6. Small fish swimming around in low DO. 29-Jul; 15:00 7. Full body of a worm on sediment surface. 01-Aug; 15:00. |
||
Date | |||
Source | Movie S2 from Sturdivant S, Diaz R, Cutter G (2012). "Bioturbation in a Declining Oxygen Environment, in situ Observations from Wormcam". PLOS ONE. DOI:10.1371/journal.pone.0034539. PMID 22493701. PMC: 3321014. | ||
Author | Sturdivant S, Diaz R, Cutter G | ||
Permission (Reusing this file) |
|
||
Provenance InfoField |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 06:38, 31 May 2013 | 26 s, 272 × 360 (1.33 MB) | Open Access Media Importer Bot (talk | contribs) | Automatically uploaded media file from Open Access source. Please report problems or suggestions here. |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Transcode status
Update transcode statusFile usage on other wikis
The following other wikis use this file:
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.
Author | Sturdivant S, Diaz R, Cutter G |
---|---|
Usage terms | http://creativecommons.org/publicdomain/zero/1.0/ |
Image title | Observations from 22 July to 7 August, 2009. The DO concentration declines from ?1.5 mg O2 l?1 at the start to ?0.1 mg O2 l?1 at the end. During this time burrows are created and destroyed, and as DO concentration declines burrowing activity decreases. On multiple occasions you can see small fish swimming around during hypoxia in DO concentrations as low as 1.0 mg O2 l?1. As the DO concentration continues to decline towards the end of the movie, the upper layer of sediment becomes reduced (black in color) and small stringy-white bacteria, likely Beggiatoa spp., can be observed migrating through the sediment to the surface. The below table details, though not limited to, some specific behavioral observations. This movie depicts a sequence of images captured every hour, running at a frame rate of 15 hours per second. The black marks around the image are in cm units; date, time, and corresponding DO concentration for the image is indicated at the top and bottom, respectively. The graph below the image displays the DO concentration for the time-span of the movie, and the blue circle bounces around while the movie is played indicating the corresponding DO concentration. Note that this movie is not comprehensive of all the images captured by Wormcam during the time period and if the exhaustive images and movies want to be viewed please feel free to contact the corresponding author. No. Description. Day; Hour 1. Worm in u-shaped burrow. 22-Jul; 21:00 2. Worm extending body above sediment surface. 31-Jul; 03:00 3. Small fish on surface of sediment (center of image). 26-Jul; 09:00 4. Small fish on surface of sediment (center of image). 28-Jul; 08:00 5. Small fish swimming around in low DO. 28-Jul; 12:00 6. Small fish swimming around in low DO. 29-Jul; 15:00 7. Full body of a worm on sediment surface. 01-Aug; 15:00. |
Software used | Xiph.Org libtheora 1.1 20090822 (Thusnelda) |
Date and time of digitizing | 2012 |