![]() ![]() “Sponge Diver on the ocean floor” by Hamilton Wright under public domain ![]() This only gave a 41% survival rate while the new method of cutting gives about a 71% survival rate for the sponges.īelow is a picture of how sponges were originally harvested with a hook. ![]() When people first started this process, they would use a hook and tear the sponges from the bottom of the ocean instead of cutting them. This method of harvesting sponges is much better than the original way that sponges were harvested. On the boat the sponges are cleaned and left under a burlap sack in the sun. The divers will squeeze the gurry out of the harvested sponge and it will be taken back to the boat. The divers will cut about 2/3 of the sponge off and keep it for harvesting, leaving the rest of the sponge to regrow. These divers will use either a specially designed hook or knife to do the harvesting. Sponges are typically harvested from the bottom of the ocean by divers. “Caribbean sea sponges” By Twilight Zone Expedition Team 2007, NOAA-OE under public domain How are Sponges Harvested? There are only 5 commercially harvested sponges in Florida, they are the sheepswool sponge, yellow sponge, glove sponge, finger sponge,and the grass sponge. ![]() These are the sponges that have a skeleton made of the spongin fiber. Although there are about 9,000 species of describes sponges, only a few of them are important for harvesting. Sponges do not contain nervous, digestive or circulatory systems, instead they maintain a constant water flow through their bodies in order to obtain food and oxygen, and also to remove wastes. Sponges contain unspecialized cells that are able to transform into other types of cells and will often migrate between the main cell layers and the mesohyl layers. They also have mesohyl sandwiched between two thin layers of cells. Sponges are part of the phylum porifera. They are multicellular parazoan organisms and their bodies are full of pores and channels that allow water to circulate through them. ![]()
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