Sleeper gobies

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Sleeper gobies
Purple-dotted sleeper goby (Mogurnda adspersa)

Purple-dotted sleeper goby
( Mogurnda adspersa )

Systematics
Sub-cohort : Neoteleostei
Acanthomorphata
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Order : Gobies (Gobiiformes)
Family : Sleeper gobies
Scientific name
Eleotridae
Regan , 1911

The sleeper gobies (Eleotridae) are a group of small to medium-sized fresh , sea and brackish water fish. They are a family of the perch relatives (Percomorphaceae). They live in freshwater and mangroves around the world .

features

Like all gobies , sleeper gobies have an elongated, cylindrical body with a round cross-section. The mouth is at the top or at the end. Unlike the gobies (Gobiidae), they have separate pelvic fins , but the fin base is close together or has even grown together. They always have two separate dorsal fins . The first has two to eight hard rays . Sleeper gobies have 25 to 28 vertebrae. Most species are between five and six inches long. With a maximum length of 60 centimeters, Gobiomorus dormitor is the largest representative.

distribution

Sleeper gobies live on tropical and subtropical seashores, mostly in brackish water . There are also pure freshwater species in the tropics, Australia and New Zealand .

Way of life

The fish live on the bottom of the water, often between plants. Many species are territorial and solitary, more rarely they live in small groups. Sleeper gobies are often active at night or at dusk. Most species feed on all kinds of small animals, such as insect larvae, worms, crustaceans, and fish larvae. Some species also eat algae. They are substrate spawners who lay their eggs in caves, on stones or on water plants. Both parents or the males guard the brood until the fry have hatched.

Systematics

There are over 25 genera .

Belobranchus belobranchus
Bunaka gyrinoides

Remarks

  1. ↑ a b c d e f so far in the family Xenisthmidae

literature

  • Joseph S. Nelson : Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7 .
  • Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
  • Christine Thacker: Systematics of Butidae and Eleotridae. in Robert Patzner, James L. Van Tassell, Marcelo Kovacic: The Biology of Gobies. Science Publishers, 2011, ISBN 1-57808-436-9 .
  • Hans Horsthemke: Dormitator , Eleotridinae , Eleotris , Giuris , Hemieleotris , Hypseleotris , Mogurnda and Tateurndina. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , pp. 332-334, 351 f., 414, 459 f., 509-511, 658 f. and 925.

Individual evidence

  1. ↑ Gobiomorus dormitor on Fishbase.org (English)
  2. ↑ Gerald R. Allen : Allomogurnda, a new genus of gudgeon (Eleotridae) from fresh waters of New Guinea, with description of 7 new species . Fishes of Sahul (2003) 17 (3/4): 978-997.
  3. ↑ Thacker & Pezold: Redescription of the dwarf Neotropical eleotrid genus Leptophilypnus (Teleostei: Gobioidei), including a new species and comments on Microphilypnus. . In: Copeia . 2006, No. 3, 2006, p. 494ff.

Web links

Commons : Sleeper Gobies  - Collection of images, videos, and audio files