Spongiidae

Spongia officinalis, better known as a variety of bath sponge, is a commercially used sea sponge.

Dictyoceratida

Skeleton is made up of spongin fibres. The silicious spicules be in a absent. 4. It is usually of a globular shape with numerous oscula mounted on well marked projections-the canals.

Euspongia is a commercially used sponge, commonly referred to as a “bath sponge”. It is a hermaphrodite species that can reproduce asexually by budding or sex. It is commonly known as “freshwater sponge”.

– Spongilla are freshwater sponges belonging to the family Spongillidae and are mostly found in lakes and stagnant streams. – Euspongia are also known as Bath sponge due to its texture having wooly, sponge-like fibres and is mostly used for scrubbing during bathing.

: any sponge of Cliona or related genera that penetrates the substance of shells, some species (such as C. celata) of the Atlantic coast being injurious to oysters.

Spongilla is a common, widely distributed fresh water sponge, found in lakes and ponds and belongs to class Desmospongiae.

Leucosolenia is a type of exclusively marine, sessile, radially symmetrical, and colonial sponge. Spongilla is a genus belonging to freshwater sponges of the family Spongillidae. They attach to rocks and logs and filter the water for small aquatic organisms like protozoans, bacteria.

Freshwater sponges grow on sturdy submerged objects in clean streams, lakes, and rivers. Because they are sensitive to water conditions, their presence indicates high water quality and low levels of pollutants.

Sponges have three asexual methods of reproduction: after fragmentation; by budding; and by producing gemmules. Fragments of sponges may be detached by currents or waves.

Sponges can live for hundreds or even thousands of years. “While not much is known about the lifespan of sponges, some massive species found in shallow waters are estimated to live for more than 2,300 years,” the study authors write.

Role in asexual reproduction Asexual reproduction in sponges occurs via budding, either by external or internal buds. The internal buds are called gemmules. Only endogenous types of buds develop into new sponges.

Freshwater sponges reproduce sexually during the summer, giving birth to live larvae.

The approximately 8,550 living sponge species are scientifically classified in the phylum Porifera, which is comprised of four distinct classes: the Demospongiae (the most diverse, containing 90 percent of all living sponges), Hexactinellida (the rare glass sponges), Calcarea (calcareous sponges), and Homoscleromorpha …

Throughout their lifecycle, jellyfish take on two different body forms: medusa and polyps. Polyps can reproduce asexually by budding, while medusae spawn eggs and sperm to reproduce sexually. Learn more about the lifecycle and reproduction of jellyfish.

Yes, some species of the Jellyfish soon dies after mating and releasing the embryo out of the body of the female.

If you cut a jellyfish in half, the pieces of the jellyfish can regenerate and turn into two new jellies.

Shooting it or hacking it to pieces will do nothing… the pieces will remain alive and grow. The only way to kill it is to remove it from the water, dry it out on the beach, then douse it in gasoline and set it on fire. Nothing short of combustion will work.

Box jellyfish stings can be fatal because of the creature’s barbed tentacles containing venom. If you encounter these tentacles, the jellyfish can poison you with immediate effects. Not all stings will cause death. However, all of those stung experienced serious symptoms within a few minutes.

How are jellyfish stings treated?

1. If you are stung at the beach or in the ocean, pour sea water onto the part of your body that was stung.
2. Use tweezers to remove any tentacles you see in your skin.
3. Next, apply vinegar or rubbing alcohol to the affected area to stop the burning feeling and the release of the toxin.

Jellyfish can sting if they brush against you when you’re swimming in the ocean. You also can get stung if you step on a jellyfish, even a dead one. Usually, jellyfish stings will hurt, but are not emergencies. Most cause pain, red marks, itching, numbness, or tingling.