Pacific viper fish
| Pacific viper fish | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pacific viperfish ( Chauliodus macouni ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Chauliodus macouni | ||||||||||||
| Bean , 1890 |
The Pacific viperfish ( Chauliodus macouni ) is a deep-sea fish from the order of the Maulstachler (Stomiiformes). It occurs in the North Pacific from Japan over the Nawarin Trench in the Bering Sea and the Gulf of Alaska to the middle of the Baja California peninsula and in the Gulf of California at depths of 25 to 4,390 meters.
features
It becomes 25 cm long and weighs about 25 g. Its elongated body has 56 to 63 vertebrae. The short dorsal fin has 5 to 7 fin rays , the anal fin 9 to 14. The first ray of the dorsal fin is greatly elongated and has a small, leaf-like appendage at the end. The adipose fin , which is located in the back area above the anal fin, is large, the pelvic fins are long and narrow. Gill raker beams is missing, the number of Branchiostegalstrahlen is 16 to 21 Pacific viperfish are dark brown to black. Rows of luminous organs extend along the abdomen .
Way of life
The Pacific viperfish feed on planktonic crustaceans , arrow worms, and small fish. He undertakes vertical hikes and ascends towards the surface of the sea at night. Eggs and larvae live planktonically.
literature
- Andreas Vilcinskas : 1000 fish. Naumann & Göbel, ISBN 3-62510-570-5 .
Web links
- Pacific viper fish on Fishbase.org (English)