Sea Cucumber Filtering Water
Sea cucumbers are echinoderms from the class holothuroidea they are marine animals with a leathery skin and an elongated body containing a single branched gonad sea cucumbers are found on the sea floor worldwide.
Sea cucumber filtering water. The sea cucumber is a type of marine life form. They are a type of echinoderm so they have an endoskeleton. Unlike most terrestrial animals sea cucumber eggs undergo external fertilization females release eggs into the water that are fertilized when they come into contact with sperm that males have released. Sea cucumbers can breed sexually or asexually.
Some sea cucumbers collect food from the surrounding water while others find food on or in the ocean bottom. When sea cucumbers scavenge the ocean floor for their food tiny particles like algae. The number of holothurian ˌ h ɒ l ə ˈ θj ʊər i ə n ˌ h oʊ species worldwide is about 1 717 with the greatest number being in the asia pacific region. The animals release both eggs and sperm into the water and fertilization.
Some sea cucumbers bury themselves fully in the sediment. Sea cucumbers exhibit sexual and asexual reproduction. In general sea cucumbers should be kept in reef or invertebrate only aquariums but this is especially true of the yellow cucumber because if it is injured it may release toxins into the water. As the sea cucumber pumps water in and out to breathe the fish slowly but surely wiggle their way inside.
This type of sea cucumber is a filter feeding variety and its diet can be supplemented with dried phytoplankton. Other pearlfish take the opposite approach reversing in tail first some pearlfish species are harmless simply bumming a free room from the sea cucumbers. Sea cucumber facts and information introduction to sea cucumber. Sexual reproduction is more typical but the process is not very intimate.
Some species ingest sediment remove the food particles and then excrete the sediment in long strands. One sea cucumber can filter up to 99 pounds of sediment in a year. Obviously if you were to add a species such as this to your aquarium. For example the cold water sea cucumber that i studied parastichopus parvimensis ingests a wide range of organic detritus but it turns out that the plant components of that detritus remain undigested even after passing through the animal s gut ruppert and barnes 1994.
There are many species found and experts believed that they may not have even identified all of them yet.