Sea Slugs use Photosynthesis - Genetics - Science Forums
Lettuce sea slugs are molluscs, belonging to the Class Gastropoda, the most diverse of the molluscan groups. They essentially are snails without shells. Lettuce sea slugs are often erroneously referred to as lettuce nudibranchs, but in fact they belong to a different order of gastropods, the Sacoglossa, than the true nudibranchs, which are in the order Nudibranchia. Unlike the nudibranchs, the sacoglossan sea slugs lack the tufts of external gills that give nudibranchs their name (nudi = naked, branch = gill). Sacoglossans do have radulas, however, and this is something they have in common with all of the other molluscs except for the bivalves (the bivalves, including the clams, oysters, mussels, etc. lack radulas). A radula is essentially a long, slender tooth-studded tongue-like structure that in many snails is used as a rasp to scrape small bits of food into the mouth (See for more information on radula function. Also see photos and diagrams of radulas: , , ). In the sacoglossan sea slugs, the radula is reduced to just a single row of teeth that are used to slit algal cells prior to sucking out the contents (Ruppert and Barnes 1994). Sacoglossans tend to be quite specialized in their diets, often feeding on only certain algal species. In some cases, it appears that different species of algae are fed upon at different stages in the life of a given sea slug (). Not all sacoglossans retain the algal chloroplasts as do the lettuce sea slugs, but other members of their family (Elysidae) do.
20/11/2013 · Four sea slug species keep the ..
For the sea slugs to be using their ..
It's really interesting knowing that the slug can survive using photosynthesis, like how a plant would produce food to survive. I find this very weird, the slug appears to look like a leaf, but how would this work. it's unheard of a living thing using photosynthesis other then plants.
to Plant or Animal: The Photosynthesizing Sea Slug.
The sea slugs manage to go throughout there life and adapt using photosynthesis. It is very interesting how they life off of just using photosynthesis. These genes help sustain photosynthetic processes inside the slug that provide it with all the food it needs.
Amazing sea slug eats so much algae it can ‘photosynthesize’
For further information on the lettuce sea slug, go to: . This page also has some wonderful photos showing the great variation in color within this species, and some really nice photos of tiny juvenile lettuce sea slugs in an aquarium where reproduction occurred. I highly recommend you take a look at this site, if only to see the beautiful lettuce sea slug photos.
featured, genetic engineering, Green Sea Slug, photosynthesis, ..
If you decide to try keeping lettuce sea slugs in an aquarium, my recommendation would be to not do so simply for control, but also for the intrinsic interest of the sea slugs themselves. They are truly beautiful animals, and the biological stories behind that beauty can hardly be beat.