Haplochromis nigricans (Boulenger, 1906)

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Haplochromis nigricans
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335).  More on author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser benthopelagisch; pH range: 8.0 - 8.0; dH range: 9 - 19.   Tropical; 24°C - 26°C (Ref. 2060); 3°N - 3°S

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Africa: Lake Victoria and Victoria Nile.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL Männchen/unbestimmt; (Ref. 4983)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 15 - 16; Rückenflossenweichstrahlen (insgesamt): 10-9; Afterflossenstacheln 3; Afterflossenweichstrahlen: 9; Wirbelzahl: 29. Moderately convex dorsal head profile, short snout, terminal mouth and broad bands of contiguously set teeth. Distinguished from males of all species of Neochromis by having enlarged cephalic pores, and large scales on the lateral chest surface, gradually changing to small ones only at the level of the ventral fin insertions. Differs further from N. simotes by having a deeper body (38.4% SL vs. 34.0-35.7), a shorter (26.9% HL vs. 30.8-32.5) and narrower (31.7% HL vs. 35.4-37.7) snout, smaller preorbital depth (14.9% HL vs. 16.8-18.7); larger eyes (30.9% HL vs. 27.1-28.7), a shorter (30.1% HL vs. 30.8-33.1) and narrower (27.7-% HL vs. 32.8-34.4) lower jaw, subequally bicuspid crowns to the teeth in the outer rows, fewer inner tooth rows in both jaws (5), larger scales on the occiput, cycloid scales on the caudal part of the dorsum, larger scales on the chest, and the lack of small cycloid scales on the anal/genital region (Ref. 27668).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Inhabits rocky and shallow areas of the littoral zone (Ref. 4983). In the lake H. nigricans has been observed to graze on algae from rock surfaces (Ref. 558).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Mouthbrooding by females.

Hauptreferenz Upload your references | Referenzen | Koordinator : Kullander, Sven O. | Partner

Seehausen, O., E. Lippitsch, N. Bouton and H. Zwennes, 1998. Mbipi, the rock-dwelling cichlids of Lake Victoria: description of three new genera and fifteen new species (Teleostei). Ichthyol. Explor. Freshwat. 9(2):129-228. (Ref. 27668)

IUCN Rote Liste Status (Ref. 120744)

  Daten mangelhaft (DD) ; Date assessed: 01 April 2010

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00677 - 0.03085), b=2.98 (2.81 - 3.15), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.2   ±0.1 se; Based on diet studies.
Widerstandsfähigkeit (Ref. 69278):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Verwundbarkeit (Ref. 59153):  Low vulnerability (13 of 100) .