Blue bass

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Blue bass
Blue perch (badis badis)

Bluefish ( Pools badis )

Systematics
Acanthomorphata
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Order : Climbing fish species (Anabantiformes)
Subordination : Nandoidei
Family : Blue bass
Scientific name
Badidae
Barlow , Liem & Wickler , 1968

The blue perches (Badidae) are a family of the order Anabantiformes . There are two genera, Badis from the lowlands of the Ganges , Brahmaputra and Mahanadi in India , Nepal and Bangladesh , from the Irrawaddy region in Myanmar , southern Thailand and from parts of the Mekong , and Dario from northeast India, northern Myanmar and the upper Irrawaddy in southern Yunnan (China).

features

The species of the family are 1.5 to 8 cm long, all species of the genus Badis are over 2.5 cm long, those of the genus Dario remain under 2.5 cm and are therefore the smallest known perch-related fish. Blue bass are brownish, reddish or bluish in color, their flanks and unpaired fins are often provided with a dot or striped pattern. Blue bass can change their color quickly, which led to the English name Chameleonfishes. The number of vertebrae is 24 to 30. The mouth is small and can only be slightly pushed forward. The outer wing bone (ectopterygoid) is toothless, the gill cover and the infraorbital have smooth edges. The dorsal fin is continuous.

The eggs are completely surrounded by a coat of fibers. The larvae have a unique, multicellular adhesive organ at the top of the yolk sac .

Way of life

Blue bass are found mainly in small bodies of water and are territorial loners who fight to defend their small territories. They feed on small, invertebrate animals. The species of the Badis genus spawn, as far as researched, in caves or under overhangs. The 30 to 100 eggs and the young fish that hatch after about two to three days are guarded by the male until they swim free after about a week. The Dario species give their eggs between finely feathered aquatic plants and do not care for the brood.

Systematics

In the past, the genus Badis was assigned to the Nanderbarschen (Nandidae). The second genus of the family, Dario , had not yet been described. Based on morphological data, the Badidae were identified by Barlow et al. set up only for Badis . Since the caudal fin skeleton of both families has characteristic common features, a sister group relationship is still assumed. Badidae and Nandidae were usually assigned to the Perciformes , a para- and polyphyletic grouping in its original composition . As close relatives of the labyrinth fish (Anabantoidei) and the snakehead fish ( Channoidei) they are now placed in the order Anabantiformes .

Genera and species

Badis blosyrus

literature

  • Joseph S. Nelson : Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7
  • Lukas Rüber, Ralf Britz, Sven O. Kullander, Rafael Zardoya: Evolutionary and biogeographic patterns of the Badidae (Teleostei: Perciformes) inferred from mitochondrial and nuclear DNA sequence data. Molecular Phylogenetics and Evolution 32 (2004), pages 1010-1022 PDF
  • Kullander, SO & R. Britz (2002): Revision of the family Badidae (Teleostei: Perciformes), with description of a new genus and ten new species. Ichthyological Exploration of Freshwaters 13 (no. 4): 295-372.

Individual evidence

  1. ↑ WE Engelmann: zoo animal husbandry 5. Fish. , Page 639-640, German Harri GmbH, 2005, ISBN 3-8171-1352-8
  2. ↑ Ricardo Betancur-R, Edward O. Wiley, Gloria Arratia, Arturo Acero, Nicolas Bailly, Masaki Miya, Guillaume Lecointre and Guillermo Ortí: Phylogenetic classification of bony fishes . BMC Evolutionary Biology, BMC series - July 2017, DOI: 10.1186 / s12862-017-0958-3
  3. ↑ a b c d Stefano Valdesalici & Stefan van der Voort: Four new species of the Indo-Burmese genus Badis from West Bengal, India (Actinopterygii: Perciformes: Badidae) Zootaxa 3985 (3): 391–408, doi: 10.11646 / zootaxa .3985.3.4

Web links

Commons : Badidae  - collection of images, videos and audio files