分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: biriwira: The name biriwira is from Chichewa meaning 'green', referring to the greenish colour of males in territorial colouration; the specific epithet is used as a noun in apposition (Ref. 119465).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
Africa: Lake Malawi in Malawi (Ref. 119465).
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 119465)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 18 - 19; 背的軟條 (總數) : 8 - 10; 臀棘: 3; 臀鰭軟條: 7 - 8. Diagnosis: The steeply sloped vomer, the small retrognathic jaw, and the presence of bicuspid teeth in the outer rows of both lower and upper jaws and enlarged conical teeth at the back of the jaws place this species in Tropheops (Ref. 119465). Tropheops biriwira, body depth 26.8-32.1% of standard length, cannot reliably be distinguished from other Tropheops on body depth, 23.6-34.5% (Ref. 119465). The breeding male of T. biriwira has green/light blue ground colouration with a green dorsal fin, while those of T. kumwera and T. kamtambo both have blue ground colouration and a blue dorsal fin; females of T. biriwira cannor reliably be distinguished from those of T. kumwera, but lack a black submarginal band in the dorsal fin that characterizes female T. kamtambo (Ref. 119465). There are fewer tooth rows, 2-5, on both upper and lower jaws in T. biriwira than in other species of Tropheops, 6-8, except in T. kumwera and T. kamtambo; Tropheops biriwira can be distinguished from T. kumwera and T. kamtambo by an on avreage larger eye, horizontal eye diameter 30.8-40.4% of head length and vertical eye diameter 29.6-35.4% of head length vs. 25.8-32.6% and 24.0-31.4% in T. kumwera and T. kamtambo, and also on average shorter snout, snout length 26.5-37.8% of head length vs. 28.0-42.8% in T. kumwera (Ref. 119465).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Li, S., A.F. Konings and J.R. Stauffer Jr., 2016. A revision of the Pseudotropheus elongatus species group (Teleostei: Cichlidae) with description of a new genus and seven new species. Zootaxa 4168(2):353-381. (Ref. 119465)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
近危 (NT) (B1a+2a); Date assessed: 19 June 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
