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Opsaridium tweddleorum Skelton, 1996

dwarf sanjika
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Image of Opsaridium tweddleorum (dwarf sanjika)
No image available for this species;
drawing shows typical species in Danionidae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Danionidae (Danios) > Chedrinae
Etymology: Opsaridium: Greek, opsarion, -ou = a little portion fish (Ref. 45335).
Eponymy: Denis (d: 1949) and Sharon Tweddle are husband and wife and together were honoured in the name of the dwarf sanjika for their contributions (e. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的. 熱帶

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: western affluent perennial rivers of Lake Malawi and tributaries of Shire River, lower Zambezi (Ref. 26673, 52193).
非洲: 馬拉威湖與尚比西河下游河。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52193)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 背的软条 (总数) : 10 - 11; 臀棘: 0; 臀鳍软条: 16.

生物学特性     字汇 (例如 epibenthic)

Found in swift-flowing streams in rocky reaches over clean sand (Ref. 52193).; prefers clear, fast flowing waters (Ref. 26673). It feeds on insects and other invertebrates in the drift (Ref. 52193). Breeds in summer (Ref. 52193).

偏爱清澈的, 快速流动的水。

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

非洲: 馬拉威湖與尚比西河下游河。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Skelton, P.H., 1996. A review of Opsaridium zambezense (Pisces: Cyprinidae) from southern Africa with description of a new species from Malawi. Ichthyol. Explor. Freshwat. 7(1):59-84. (Ref. 26673)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)

  数据缺失 (DD) ; Date assessed: 21 May 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

更多信息

Trophic ecology
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特别资料

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网络资源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [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).
营养阶层 (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Nutrients (Ref. 124155):  Calcium = 500 [302, 1,184] mg/100g; Iron = 3.03 [1.80, 5.47] mg/100g; Protein = 17.5 [16.6, 18.5] %; Omega3 = 0.606 [0.244, 1.610] g/100g; Selenium = 48.2 [19.5, 118.7] μg/100g; VitaminA = 126 [41, 391] μg/100g; Zinc = 2.46 [1.55, 3.81] mg/100g (wet weight);