Dwarf perch

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Dwarf perch
Porphyry dwarf perch (Pictichromis porphyrea)

Porphyry dwarf perch ( Pictichromis porphyrea )

Systematics
Acanthomorphata
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Ovalentaria
incertae sedis
Family : Dwarf perch
Scientific name
Pseudochromidae
Bleeker , 1875

The dwarf perch (Pseudochromidae) are marine fish from the group of perch relatives (Percomorpha) that live near the coast . The family comprises five subfamilies with 12 genera and over 125 species . They occur in the tropical Indo-Pacific and in the Red Sea and live strictly bound to coral reefs in caves and crevices.

features

The body of the dwarf perch is elongated, laterally flattened and often beautifully colored. They usually grow to be 5 to 18 inches long. Little bass have large eyes with a slightly oval pupil. Its mouth is large and well-toothed.

The dorsal and anal fins have one to three fin spines. The pelvic fins, which can also be missing, are supported by a spine and three to five soft rays. Their base lies below or in front of the base of the pectoral fin. The sideline of the dwarf perch can be continuous or interrupted. The number of Branchiostegal rays is six.

Way of life

Little bass live hidden in coral reefs in shallow water. They predatory feed on small crustaceans and other invertebrate organisms. Small perch live in pairs or in harem groups. They are hermaphrodites , meaning that a single animal can become both female and male. In a couple, the larger animal is always the male. All dwarf bass spawn in caves. The male guards the eggs until the larvae hatch after about a week. The eggs adhere to each other and to the ground with filaments.

Systematics

Minke perch are probably closely related to the miracle perch (Plesiopidae), fairy perch (Grammatidae) and well builders (Opistognathidae).

Assiculus punctatus
Cypho purpurascens
Labracinus melanotaenia
Great dwarf perch ( Manonichthys splendens )
Queensland Little Bass ( Ogilbyina queenslandiae )
Nymph dwarf perch ( Pictichromis paccagnellae )
Aldabra dwarf perch ( Pseudochromis aldabraensis )
Yellow bridge dwarf perch ( Pseudochromis flavivertex )
King Solomon dwarf perch ( Pseudochromis fridmani )
Pseudochromis fuscus
Pseudochromis perspicillatus
Pseudochromis quinquedentatus
Pseudochromis springeri
Pseudochromis tapeinosoma

The eelfish (Congrogadidae), which were classified as a subfamily of the dwarf perch until mid-2014, have become an independent family in the third version of the revision of the bony fish system by Betancur-R and employees.

Aquaristics

The best known are the dwarf perches of the genera Pseudochromis and Pictichromis from the subfamily Pseudochrominae, which are popular fish for seawater aquariums because of their brightly colored colors . A large part of the animals offered in the trade is bred in fish farms. Small perch should always be kept in pairs.

literature

Individual evidence

  1. ↑ HK Mok, HJ Chang, CY Lee: Phylogenetic interrelationship of the perciform Acanthoclinidae, Grammidae, Plesiopidae, Pseudochromidae, and Opistognathidae. Bull.Inst. Zool., Vol. 29, No. 1, pages 29-39.
  2. ^ A b Anthony C. Gill (2013): Classification and relationships of Assiculus and Assiculoides (Teleostei: Pseudochromidae). Zootaxa , 3718 (2): 128-136. doi: 10.11646 / zootaxa.3718.2.2
  3. ↑ Betancur-R, R., E. Wiley, N. Bailly, M. Miya, G. Lecointre & G. Ortí. 2014. Phylogenetic Classification of Bony Fishes --Version 3 ( Memento from August 14, 2015 in the Internet Archive ) .

Web links

Commons : Minke Bass  - Collection of images, videos and audio files