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Mormyrus lacerda Castelnau, 1861

Western bottlenose mormyrid
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Mormyrus lacerda
Picture by Mertens, P.


Botswana country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Okavango Delta in the Boteti River, Thamalakane River, Nxaraga Lagoon, Xakanixa Lagoon, Magwexana Lagoon, mainstream channel and Dungu Lagoon.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bc.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Merron, G.S. and M.N. Bruton, 1995
National Database:

Common names from other countries

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

Teleostei > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Mormyrus: Greek, mormyros = a fish (Sparus sp) (Ref. 45335).
  More on author: Castelnau.

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

; 淡水 居于水底的.   熱帶; 11°S - 21°S

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

Africa: Cunene (Ref. 13337, 52193, 120641), Cuvelai (Ref. 120641), Okavango, (upper) Zambezi (Ref. 52193, 120641) and Kafue systems (Ref. 52193).
非洲: 尚比西河上游, Kafue 與奧塔萬戈河。 也發現於庫內內河了。 (參考文獻 13337)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 52193); 最大体重: 2.0 kg (Ref. 52193)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 62-68; 臀棘 0; 臀鳍软条: 18 - 21. Diagnosis: dorsal fin greater than twice length of anal fin; dorsal origin nearer tip of snout than caudal fin base; snout 3-3.2 times in head length; caudal peduncle more than 4 times in standard length (Ref. 52193).
背鳍长的与延长的吻具有一个端位口。

生物学特性     字汇 (例如 epibenthic)

Prefers quiet stretches of river channels, deep pools and floodplain lagoons with aquatic vegetation; may form small shoals; feeds mainly on insect larvae, shrimps, small snails and small fish (Ref. 52193). Known to move up tributaries when they come down in spate and may breed in newly inundated areas (Ref. 13337). Spawns during the rainy season; females carry up to 7,000 eggs; caught by subsistence fishermen and anglers (Ref. 7248, 52193).

偏爱河峡道中安静的支流,深水池与有水生植物生长的洪泛区泻湖。 可能形成小的浅滩。 主要吃昆虫幼生,虾,小的蜗牛与小鱼。 已知向上游支流迁移他们何时在泛滥中下来而且可能在最近浸水的区域中繁殖.(参考文献 13337) 产卵于雨季; 母鱼抱卵向上到 7,000个卵。 被渔民与垂钓者捕获了。 (参考文献 7248)

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

非洲: 尚比西河上游, Kafue 與奧塔萬戈河。 也發現於庫內內河了。 (參考文獻 13337)

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

Gosse, J.-P., 1984. Mormyridae. p. 63-122. 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. 3203)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 01 March 2007

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: 商业性; 游钓鱼种: 是的
FAO(Publication : search) | FishSource |

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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=0.01122 (0.00573 - 0.02198), b=2.83 (2.67 - 2.99), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.7   ±0.61 se; based on food items.
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (K=0.8).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100).
价格分类 (Ref. 80766):   Unknown.