Usuario:Antoniohcr/Taller

 
Teuthidodrilus samae
Taxonomía
Dominio: Eukaryota
Reino: Animalia
Filo: Annelida
Clase: Polychaeta
Orden: Canalipalpata
Familia: Acrocirridae
Género: Teuthidodrilus
Osborn, Madin & Rouse, 2010
Especie: Teuthidodrilus samae
Osborn, Madin & Rouse, 2010

The squid worn (Theuthidodrilus Samae) is a kind of specie of annelid from the Polychaeta family and the only member of the gender Teuthidodrilus. It feeds of plankton and it dwell in the abyssal regions of the Celebes Sea[1], between Philippines and Indonesia.

It have an inusual aspect, his body measure around the 10 cm long, it have 25 white legs in each side of the body (Parapodium), to be able to move in the water, and 10 appendices as a tentacle which appear of the cephalic portion and give him an strange appeareance which remind a squid and that tis where the name come from. It is belive that it can use the appendices (which are as long as his whole body) for feed of marine snow. The youngers specimens are transparent, while the adults have dark brown colour and are recover by a gelatinous structure.

It was discovered in 2007 in the course of the oceanographic research, collecting few specimens a depths included between 2000 – 2900 meters. It seems to be a common species in the grave of the Celebes. The authors of the description of this kind of specie, doesn´t believe that the gender is monotypic.

Animal density typically decreases with depth in the open ocean but then increases again when approaching the deep-sea floor . The concentration of mobile animals within a few hundred metres of the seafloor forms a diverse demersal community that we know little about. Many organisms found in this broad demersal or bentho-pelagic zone (the bottom several hundred metres that is influenced by the seafloor) have long been inaccessible for two main reasons. First, traditional sampling gear was designed to collect benthic (living on the seafloor) or pelagic (living in the water column) animals. Swimming organisms can escape collection devices towed on the seafloor and midwater nets are not often towed near the seafloor at great depth because of the risk of damaging the relatively fragile gear . Second, many of the community's animals are delicate and thus damaged beyond usefulness by indiscriminate sampling gear and the long trip back to the surface . Development of vehicles capable of free operation in the deep-water column has allowed direct access to deep-pelagic habitats. These vehicles have the unique ability to observe animals undisturbed in their natural Habitat and to collect them without damage, and thus are providing a more complete picture of the inhabitants of the largest habitat on the Earth . [1][2]

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