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Distichodus schenga Peters, 1852

Chessa
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Image of Distichodus schenga (Chessa)
No image available for this species;
drawing shows typical species in Distichodontidae.


Zambia country information

Common names: Chessa
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Losse, G.F., 1998
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the middle Zambezi system (Ref. 52193), including Lake Kariba, where it is a species of primary economic importance (Ref. 27602). Also Ref. 894.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/za.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Skelton, P.H., 2001
National Database:

Common names from other countries

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

Teleostei > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).
  More on author: Peters.

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

; 淡水 大洋性.   熱帶; 11°S - 20°S

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

Africa: middle and lower Zambezi drainages, Pungwe and Buzi rivers in Mozambique (Ref. 52193, 122090).
非洲: Kariba, 尚比西河, Pungwe 與 Buzi 河中下游。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 52193); 最大体重: 6.4 kg (Ref. 52193)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 臀棘: 0. Diagnosis: snout short; mouth inferior; head about 5 times in fork length; juveniles with 12-16 dark vertical bars (Ref. 52193).

生物学特性     字汇 (例如 epibenthic)

Favors large rivers, shoaling over both rock and sand; omnivorous, preferring algae and plant matter to snails, shrimps, and small fish; breeds in summer during the rainy period, moving upstream to suitable spawning sites (Ref. 7248, 52193).

喜欢大河, 在岩石和沙子之上群集的。 杂食性, 偏爱藻类与蜗牛,虾与小鱼的植物。 在下雨的期间繁殖于夏天, 移动溯河到适当的产卵区。 (参考文献 7248)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

非洲: Kariba, 尚比西河, Pungwe 與 Buzi 河中下游。

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

Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 7094)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 01 May 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 低经济; 游钓鱼种: 是的
FAO(Publication : search) | FishSource |

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Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
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Population dynamics
Growths
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Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
Recruitments
Abundances
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繁殖
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
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鱼的声音
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Toxicities (LC50s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00696 - 0.03289), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
价格分类 (Ref. 80766):   Unknown.