Wide-eyed butter
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Wide-eyed butter ( Bothus podas ) |
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| Bothus podas | ||||||||||||
| ( Delaroche , 1809) |
The wide -eyed flounder ( Bothus podas ) is a flatfish (Pleuronectiformes) and belongs to the family of Bothidae (Butte - also called left-eye flounder).
Occurrence
The wide-eyed butt occurs in the Mediterranean including the Adriatic Sea and in the eastern Atlantic from Angola to Mauritania , as well as in Madeira , the Cape Verde Islands and the Canaries . It usually lives on sandy or muddy seabeds at a depth of 10–50 meters. In rare cases, however, it has also been found at depths of 3–400 meters.
features
The wide-eyed butt can reach a maximum length of 45 cm and a maximum weight of 700 g, but is usually much smaller. As with most types of butter, the eyes are on the left side of the body, which is covered with comb scales. The whitish underside has round scales. The body is relatively high (well over half the body length). Compared to other flatfish, the wide-eyed butt has a very small mouth opening. The sideline lies only on the side of the eye and is strongly curved over the pectoral fin. The name for the fish is the extremely wide eye relief, which is significantly wider in male animals than in female fish. The rays of the pectoral fin lying above are not elongated.
Systematics
Bothus podas is divided into two subspecies:
- Bothus podas podas occurs in the Mediterranean Sea and on the coast of western Africa, is light brown with dark spots on the eye side, has light-colored, dark-colored eye stalks and 75 to 86 scales along the side line, of which 13 to 20 are in the curved section above the pectoral fin.
- Bothus podas maderensis occurs on the coasts of the Macaronesian Islands , is dark brown with dark purple spots on the eye side, has dark, mostly unspotted eye stalks and 88 to 91 scales along the lateral line, of which 20 to 21 are in the curved section above the pectoral fin .
Way of life
The wide-eyed butter feeds on small fish and invertebrates ( bristle worms , echinoderms , mollusks ). He is a loner, but often occurs in a large number of individuals. The breeding season in the Mediterranean is from May to August, in the Azores the fish reproduce from July to September.
literature
- Werner DeHaas, Fredy Knorr: What lives in the sea on Europe's coasts? Mediterranean, Atlantic, North Sea, Baltic Sea. Special edition. Müller-Rüschlikon, Cham 1999, ISBN 3-27501-302-5 .
- Patrick Louisy: marine fish. Western Europe and the Mediterranean. Ulmer, Stuttgart (Hohenheim) 2002, ISBN 3-8001-3844-1 .
- Robert A. Patzner, Horst Moosleitner: Non-Perciformes (non-perch-like) as well as butterfly and angelfish (= sea water atlas. Vol. 6). Mergus - Verlag für Natur- und Heimtierkunde, Melle 1999, ISBN 3-88244-116-X .
Web links
- Weitaugenbutt on Fishbase.org (English)