Lemon Tea Yi Kai, Japan
Info
From the depths of the oceans new species are reported again and again, which are or were brought to the surface by means of different "method".
Some quite frequently known possibilities were / are the landing of animals with the help of deep-sea nets or even kilometer-long hook lines, dead animals are also discovered again and again on regional fish markets, which make the heart of marine researchers beat faster.
In addition, animals can be collected by using unmanned remotely operated underwater vehicle (ROV[G1]), manned submersibles (MSV[G2]) or even by divers with special pressure suits and special breathing gas mixtures.
Divers can reach depths of up to 200 meters under certain conditions and also work there (saturation divers).
It is becoming increasingly important for scientists to bring newly discovered species to the surface alive in order to learn from living animals and study their behavior.
To achieve this, and to protect the animals from the significant pressure differences (otherwise the eyes bulge out of the eye sockets extremely strak, the burst swim bladder [G3] often protrudes from the mouth of the dead animals) special transportable pressure chambers are used, so called SubCAS (Submersible Hyperbaric Chamber to Collect Living Mesophotic Fishes).
Unfortunately, however, it has been shown again and again that such animals often survive only a few days at the surface (see the link "The Physics of . . . Deep-sea Animals", an exception are Bathymodiolus mussels, which can be brought to the surface without such a pressure chamber.
Let us now turn to the deep-sea[G4] dwarf flagfish Plectranthias wheeleri.
There is often a great deal of information missing about this and other deep-sea animals regarding their habitat[G5], behavior, and reproduction, one reason why there is regularly no IUCN[G6] Red List or Washington Endangered Species Act (CITES) data.
Such is the case with Plectranthias wheeleri.
All that is known of the rather pretty little perch is that it inhabits deep offshore[G7] areas up to 230 meters with rocky reefs on the continental shelf[G8].
We sincerely thank Lemon TJ Kai from Japan for one of the few photos of a live fish.
Some quite frequently known possibilities were / are the landing of animals with the help of deep-sea nets or even kilometer-long hook lines, dead animals are also discovered again and again on regional fish markets, which make the heart of marine researchers beat faster.
In addition, animals can be collected by using unmanned remotely operated underwater vehicle (ROV[G1]), manned submersibles (MSV[G2]) or even by divers with special pressure suits and special breathing gas mixtures.
Divers can reach depths of up to 200 meters under certain conditions and also work there (saturation divers).
It is becoming increasingly important for scientists to bring newly discovered species to the surface alive in order to learn from living animals and study their behavior.
To achieve this, and to protect the animals from the significant pressure differences (otherwise the eyes bulge out of the eye sockets extremely strak, the burst swim bladder [G3] often protrudes from the mouth of the dead animals) special transportable pressure chambers are used, so called SubCAS (Submersible Hyperbaric Chamber to Collect Living Mesophotic Fishes).
Unfortunately, however, it has been shown again and again that such animals often survive only a few days at the surface (see the link "The Physics of . . . Deep-sea Animals", an exception are Bathymodiolus mussels, which can be brought to the surface without such a pressure chamber.
Let us now turn to the deep-sea[G4] dwarf flagfish Plectranthias wheeleri.
There is often a great deal of information missing about this and other deep-sea animals regarding their habitat[G5], behavior, and reproduction, one reason why there is regularly no IUCN[G6] Red List or Washington Endangered Species Act (CITES) data.
Such is the case with Plectranthias wheeleri.
All that is known of the rather pretty little perch is that it inhabits deep offshore[G7] areas up to 230 meters with rocky reefs on the continental shelf[G8].
We sincerely thank Lemon TJ Kai from Japan for one of the few photos of a live fish.
