Pollimyrus isidori, Elephant Fish : aquarium

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Pollimyrus isidori (Valenciennes, 1847)

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

Teleostei > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Pollimyrus: Because of Dr. Max Poll, ichthyologist + Greek, myros, -ou = the male of the morey eel.
More on author: Valenciennes.

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

; 淡水 居于水底的; pH range: 6.0 - 8.0; dH range: 5 - 19; 河川洄游 (Ref. 51243). 熱帶; 22°C - 24°C (Ref. 12468)

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

Africa: Senegal (Ref. 2915), Gambia, middle Niger (Ref. 3203) including the Benue (Ref. 2915), Volta and Chad basins, coastal rivers of Côte d'Ivoire (Sassandra, Bandama, Mé) and the Nile (Ref. 3203). Subspecies Pollimyrus isidori fasciaticeps and Pollimyrus isidori osborni are restricted to the Congo river basin (Ref. 3203).
非洲: 甘比亞,中央尼日,佛塔河與查德流域, 象牙海岸的沿海河川;(薩桑德拉河, Bandama, 我) 也包括尼羅河。 也已知來自 Benoue 與塞內加爾河。 (參考文獻 2915)

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 6.5  range ? - ? cm
Max length : 10.3 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57961); 最大体重: 7.00 g (Ref. 3799)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 17-22; 臀棘 0; 臀鳍软条: 21 - 27. Body depth 2.8-4.2 x SL. Sokomo and Comoe forms longer with SL/Depth ratio 3-4. Head 3.8-5.0 x SL. Eye diameter 3.3-6.4 x head length. Dorsal origin slightly behind anal fin origin. Pectorals slightly shorter or equal to head length, 2-3 x longer than pelvic fins, its posterior end reaching past origin of pelvic fins. Caudal peduncle height 2.3-3.9 x of its length, 12.3-20.6 x SL. Middle reaches fish silvery in color with lots of small spots on sides and head, higher reaches fish darker with darker and fewer spots.
体高 2.8-4.2 x SL。 Sokomo 与 Comoe 型较长的, SL/深度比 3-4 。 头部 3.8-5.0 x SL。 眼直径 3.3-6.4个 x 头长。 背鳍起点些微地在臀鳍起源后面。 胸鳍略短的或等于头长 , 2-3个倍于腹鳍, 后端延伸到腹鳍起点。 尾柄高度 2.3-3.9 倍于它的长度, 12.3-20.6 x SL 。 中游的鱼银色的颜色有许多在体侧与头部上的小斑点, 上游的鱼深色且有颜色较深且较少的斑点。

生物学特性     字汇 (例如 epibenthic)

Occupies floodplain pools in Sudd. Feeds on mud, vegetable debris and small invertebrates (Ref. 28714). Affinities: only to P. adspersus, morphologically similar; distinguished through scales on caudal peduncle, dorsal and anal fin rays and body coloration. Generates electric organ discharge (EOD) of short duration (0.08 ms) that seems to correlate with aggregative behavior of the species (Ref. 10460; 10601). During the breeding season, males build nests and while patrolling their territory sporadically emit EODs at a mean rate of 18 Hz. Participating females, on the other hand, discharge at a fairly regular rate (8-11 Hz) and this has been shown to play a role in sex recognition during courtship and spawning. Male and female EOD waveforms also differ in the amplitude ratio of the first and third phase (Ref. 10764). Also produce natural sounds ('grunts', 'moans', 'growl', etc.) at different phases of courtship, nesting and territorial defense (Ref. 10832). A fractional spawner; females able to spawn up to 26 times in the course of one reproductive cycle, laying about 125 eggs per spawning episode. Larval electric organ situated in the deep lateral musculature; that of adults in the caudal peduncle (Ref. 10605).

占领浮游植物堆的洪泛区水池。 吃泥,植物残枝与小型无脊椎动物。 (参考文献 28714) 分类相关: 只有到 P. adspersus, 形态学相似; 藉由尾梗上的鳞片,背鳍棘条与臀鳍棘条与身体颜色区别了。 产生发电器放电 (EOD) 持续很短的时间 (0.08 ms) 那似乎与此鱼种的集体行为互有关连 (参考文献 10460; 10601)。 在繁殖季节的时候,雄性建立巢而且然而巡逻他们的领土偶而以低频的 18个赫兹发出 EODs 。 参与的母鱼,另一方面,以一个相当规则的频率 (8-11个赫兹) 放电,而且这已经被显示在求偶期期间在性别辨认中扮演一个角色而且产卵。 雄鱼与雌鱼 EOD 波形也在第一个的振幅频率中与第三阶段不同。 (参考文献 10764) 也生产自然声音 ('咕噜咕噜声 ',' 呻吟,'吠声', 等等) 在求偶期的不同时期,筑巢与具有领域性防卫.(参考文献 10832) 一个少产的鱼种; 母鱼能够产卵向上到 26个倍一个生殖的周期流, 生产大约 125个卵每一次产卵。 被位于深的侧面肌肉组织之中的幼虫的发电器; 那成鱼在尾梗.(参考文献 10605)

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

30-200 eggs are spawned evey 5-8 days. Male builds nest and tends eggs and larvae. Eggs hatch after 4 days and feed after 12 days.非洲: 甘比亞,中央尼日,佛塔河與查德流域, 象牙海岸的沿海河川;(薩桑德拉河, Bandama, 我) 也包括尼羅河。 也已知來自 Benoue 與塞內加爾河。 (參考文獻 2915)

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

Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 03 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 没有兴趣; 水族馆: 商业性
FAO - Publication: search | FishSource |

更多信息

俗名
同种异名
新陈代谢
捕食者
生态毒物学
繁殖
成熟度
产卵场
产卵群集
孕卵数

卵的发育
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
Nutrients
Mass 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

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | 公众的水族馆 | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

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=0.01230 (0.00669 - 0.02263), b=2.80 (2.64 - 2.96), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
营养阶层 (Ref. 69278):  2.6   ±0.22 se; based on food items.
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (tm=0.5).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Nutrients (Ref. 124155):  Calcium = 492 [244, 1,584] mg/100g; Iron = 3.22 [1.38, 7.00] mg/100g; Protein = 17.3 [14.8, 19.8] %; Omega3 = 0.606 [0.206, 1.757] g/100g; Selenium = 91.2 [29.7, 293.3] μg/100g; VitaminA = 26.9 [8.8, 87.6] μg/100g; Zinc = 3.37 [1.98, 7.02] mg/100g (wet weight);