Flat or pleuronectiform fish are fish that have laterally compressed body and asymmetrical, being adapted to inhabit the seabed.
They live lying on a flank of their body, which is devoid of pigmentation.
The larvae of these fish have a symmetrical body and swim normally.
In the course of its development, one of the eyes begins to move to the opposite side, being able to do it with a displacement or piercing the head until it appears on the opposite side.
This is accompanied by a twisting of the anterior region of the body that is asymmetrical.
From that moment the young fish swim on a flank.
They lack a swim bladder and their gill apparatus only evacuates water through the "upper" cleft.
There are many species of flatfish and can be oriented to the right or left.
The anal and dorsal fins cover almost the entire perimeter and some have no caudal fin.
The skin of the "active" side is full of chromatophores which allows them to change color and adapt perfectly to the background.
Typical species:
Turbot (40 cm)
Single (30 cm)
Sole (40 cm)
Cinogloso (25 cm)
Halibut or hypoglossal (Up to 5 m and 320 kg)
Classification of Teleosts
- Acipenseriforms (Sturgeon)
- Cupleiforms. Cupleids (Sardine, herring, salmon, trout)
- Cipriniforms. Cyprinids (Carp, barbel, pike, piranha)
- Cipriniforms. Silurids (Glano, Catfish)
- Anguiliforms. Anguilla (Anguilla, brunette)
- Beloniforms. Belonids (Needle, flying fish)
- Signatiforms. Signatidos (Seahorse)
- Gymnotides (Gymnoto)
- Gadiforms. Gádidos (Hake, cod)
- Perciforms. Serranids (Grouper, sea bass)
- Perciforms. Peridos (Perca)
- Perciforms. Sparrows (Bream)
- Perciforms. Mulids (Mullet)
- Perciforms. Skittles (Tuna, bonito, mackerel)
- Perciforms. Xyphids (Swordfish)
- Perciforms. Góbidos (Gobio)
- Gasterosteiforms. Gasteroseids (Thorny of three thorns)
- Pleuronectiforms. Pleuronectidae (Sole, turbot)
- Hiccups. Idiots. Pediculates (Rape)
- Abyssal
Other information about fauna in Aragón:
A small list of species in Aragon would be the following:
| Vertebrates | Invertebrates |
|---|---|
MammalsBirdsReptilesAmphibiansFishes |
MetazoansProtozoa |
|
images about the fauna in Aragon. photographs on invertebrates. beneficial animals for agriculture. | |
Also Aragon enjoys a diverse and varied Nature where passing by plants, animals, Geology, or landscapes we can arrive at a fantastic bestiary that lives in its monuments.
The information will not be complete without a stroll by its three provinces, with shutdown in some of its spectacular landscapes like Ordesa, the Moncayo, Monegros or by opposition the Ebro.
Also you can dedicarte to the intangible ones: from the legend compilation that also does to universal Aragon.