Search results
Results from the WOW.Com Content Network
Xestospongia testudinaria is a species of barrel sponge in the family Petrosiidae. More commonly known as Giant Barrel Sponges, they have the basic structure of a typical sponge. Their body is made of a reticulation of cells aggregate on a siliceous scaffold composed of small spikes called spicules.
Sponges also play a role in increasing the survival of live coral on Caribbean reefs by binding fragments together and is expected to increase the rates of carbonate accretion. [ 13 ] The coral reefs that contain higher amounts of sponges have better survival rate than the reefs with fewer sponges.
All sponges in this class are strictly marine, and, while they are distributed worldwide, most are found in shallow tropical waters. Like nearly all other sponges, they are sedentary filter feeders. All three sponge body plans (asconoid, syconoid, and leuconoid) can be found within the class Calcarea. Typically, calcareous sponges are small ...
The Caribbean chicken-liver sponge Chondrilla nucula secretes toxins that kill coral polyps, allowing the sponges to grow over the coral skeletons. [18] Others, especially in the family Clionaidae , use corrosive substances secreted by their archeocytes to tunnel into rocks, corals and the shells of dead mollusks . [ 18 ]
If temperature-tracking sea sponges are to be trusted, climate change has progressed much further than scientists have estimated. A new study that uses ocean organisms called sclerosponges to ...
Negombata magnifica, commonly known as toxic finger-sponge, is a species of sponge found from the Red Sea and the Indian Ocean. Its reddish-brown narrow crooked branches can grow up to 70 centimetres (28 in). Negombata magnifica is extremely toxic because of the toxin latrunculin. [1] [2] [3]
The sponges form reefs (called sponge reefs) off the coast of British Columbia, southeast Alaska and Washington state, [15] which are studied in the Sponge Reef Project. In the case of Sarostegia oculata, this species almost always hosts symbiotic zoanthids, which cause the hexactinellid sponge to imitate the appearance and structure of coral ...
Clathrinida is an order of calcareous sponges that can be found in all seas. They are more likely to be found in shallow, shaded habitats, often within several meters of the surface. For example, marine caves and other less-exposed, shallow, but benthic environments [4]. They are also abundant in rich temperate estuaries and Pacific coral reefs.