分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); bwathondii: This species is named in honour of Prof. Dr. Philip O.J. Bwathondi, Director General of the Tanzania Fisheries Research Institute (TAFIRI) from August 1983 until the end of 2006; during this period Prof. Bwathondi supported the research of the Haplochromis Ecology Survey Team (HEST) in many ways (Ref. 85523).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性.
Africa: Lake Victoria (Ref. 85523).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 85523)
简单描述
型态特徵 | 形态测量图
脊椎骨: 28 - 30. Diagnosis: Haplochromis bwathondii is a small sized (less than 9 cm standard length), micrognathic species with a normal to relatively slender body outline, body depth 29.7-35.7% of standard length; with bicuspid and tricuspid teeth in the oral jaws and a moderately curved dorsal head profile; it has a melanin pattern of dusky, interrupted, longitudinal bands and vertical bars, producing a so-called 'chess board pattern'; this pattern also occurs in several oral shelling molluscivores, insectivores and algae scrapers, but these species generally are larger, have a strongly curved dorsal head profile and a lower jaw length/width ratio of less than 1.5, whereas in H. bwathondii it ranges from 2.0 to 2.8 (Ref. 85523). Haplochromis bwathondii differs from other small species with a 'chess board pattern' and a lower jaw length/width ratio of more than 1.5, H. sphex and H. sauvagei, in live colouration of sexually active males, by having red in the rostral part of the body; further, it differs from H. sphex by having a deeper body and a larger eye (Ref. 85523). On first impression the colours of sexually active males of H. bwathondii and H. sauvagei look alike; however males of H. bwathondii have a less distinct 'chess board pattern', are less yellow and have a silvery iridescent area on each scale, giving them a silvery appearance; furthermore H. bwathondii has a larger eye, thinner lips, a narrower lower jaw and less stout teeth with a relatively larger flange than H. sauvagei (Ref. 85523).
Found in the sub-littoral areas of the Mwanza Gulf, over mud bottoms; it is a mainly pelagic species (Ref. 85523). Before the ecological changes in Lake Victoria, this species fed mainly on Cyanophyta, both during day and night; Aulacoseira and occasionally other small diatoms such as Nitzschia were also consumed, as well as adult insects and insect pupae from the water surface (Ref. 85523). This species is a female mouth brooder that spawns the whole year (Ref. 85523).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
This species is a female mouth brooder that spawns the whole year (Ref. 85523).
de Zeeuw, M.P., M. Mietes, P. Niemantsverdriet, S. ter Huurne and F. Witte, 2010. Seven new species of detritivorous and phytoplanktivorous haplochromines from Lake Victoria. Zool. Meded. Leiden 84:201-250. (Ref. 85523)
人类利用
渔业:
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
