1379062902_0 Photo in 2019-04-25 by Fernando Trindade


1379062902_0 Photo in 2019-04-25 by Fernando Trindade

1379062902_0 photo information

Which additional information can I have about 1379062902_0 photo? Below, you will find additional information given by the author and the related information of this photo.

  • Title: 1379062902_0

  • Photographer: Fernando Trindade

  • Taken on: 2019-04-25 06:18:06

  • Uploaded on: 2013-09-13 09:01:40

  • Views: 1546

  • Camera: No camera associated

  • License:

  • Marine Animal: Elysia viridis, (Montagu, 1804) 

  • Diving Site: Baleeira - Dentro, Sesimbra, Portugal

  • Business: No business associated

  • Photo description: A very small Elysia viridis, on Codium (cf) fragile Chloroplasts of Codium fragile, which remain photosynthetically active for long periods after entry into the digestive cells of Elysia viridis, are naturally very `robust' organelles. Their capacity for photosynthetic carbon fixation in vitro declines at a very much slower rate than that of higher plant chloroplasts, with some activity detectable seven days after isolation. They are resistant to mild physical abrasion and to the high osmotic pressure of seawater. Chloroplasts from the tip of Codium plants have much higher rates of photosynthesis than those from the base, and, in laboratory feeding experiments, animals acquired more chloroplasts from the tip than from the base. Accurate measurements of rates of chloroplast turnover in Elysia during feeding proved difficult, but the fastest rate was probably about one-third to one-half of the chloroplast population replaced in a week. Elysia could select Codium, in the presence of other seaweeds, at temperatures of 8-9 degrees, but not 18-19 degrees. The method of selecting Codium appears to be by `trial and error' rather than by chemosensory means. Elysia moved towards light intensities of up to 12 W/m^2 and away from intensities above 24 W/m^2, which is approximately the intensity at which maximum rates of photosynthesis occur.

  • Tags:

Do you like 1379062902_0 photo? Share it with your friends on social medias!

Contests in which the 1379062902_0 photo is competing

Which are the different contests 1379062902_0 photo is participating or has participated in? Below, you will find the underwater photo contests in which the 1379062902_0 photo has participated or is participating. If the contest is still ongoing don’t wait any longer to vote for this photo!

The photo isn't participating in any contest

Comments

Do you like 1379062902_0 photo? Do you have any questions? Leave a comment!

Marine species Identification

All marine species appearing on photos can be identified: either by the users or specialists.

Do you know which marine species is in this photo? Tell us which marine species is in this photo and win points to use on the identification tool!

Species validated on this photo

More Photos of Elysia viridis species

How can I see more photos of Elysia viridis marine species? Below, you will find more photos of Elysia viridis. To see all the photos of Elysia viridis species click on “See all”.

See All