You can sponsor this page

Gnathonemus longibarbis (Hilgendorf, 1888)

Longnose stonebasher
上传你的 图片 和 影像
Pictures | 谷歌图片
Image of Gnathonemus longibarbis (Longnose stonebasher)
Gnathonemus longibarbis
Picture by de Vos, L.

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

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Gnathonemus: Greek, gnathos = jaw + Greek, nema = filament (Ref. 45335).  More on author: Hilgendorf.

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

; 淡水 居于水底的; 河川洄游 (Ref. 10608); 深度上下限 27 - 45 m (Ref. 9606).   熱帶

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

Africa: Victoria Nile (Ref. 1880), Lake Kyoga (Ref. 4903), Lake Victoria basin (Ref. 34290), Middle Akagera River system (Ref. 46152), Malagarazi River (Ref. 54847, 98755), Lake Tanganyika (Ref. 45485).
非洲: 維多利亞湖,坦噶尼喀湖, 維多利亞尼羅河 (Zambeze?)。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 10 - ? cm
Max length : 36.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 52331)

生物学特性     字汇 (例如 epibenthic)

In Lake Kyoga abundant among or near water lilies (Ref. 49805) and in Lake Victoria it occurs in shallow, inshore waters over sandy and rocky shores (Ref. 4903, 97924), seasonally over muddy bottoms adjacent to papyrus swamps or deep water near rocky islands (Ref. 9606, 97924). Feeds on bottom and in marginal vegetation; insectivorous (chironomid larvae, Povilla, Odonata larvae), but arthropods, oligochaetes and fish eggs are also eaten (Ref. 12526). Uses sensitive pointed addition to chin for testing holes in mud, papyrus roots and between stones to locate underwater insects (Ref. 36900). Rotates body to almost vertical position, searches substrate and grabs prey into mouth; produces weak electric organ discharge for navigation and to warn off other organisms (Ref. 97924). Oviparous (Ref. 205). Breeds twice a year during the rainy seasons, and migrates up rivers to spawn (Ref. 10608).

出现于在沙质与岩石底部上的沿岸浅水区水域,出现季节性地在泥沙底上面邻近广泛的纸草沼泽。 在岩石的岛附近, 也发现于深水域。 吃大的 libellulid 蛹与其他的大猎物。 (参考文献 9606) 卵生的.(参考文献 205) 在河上面回游产卵.(参考文献 10608)

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

非洲: 維多利亞湖,坦噶尼喀湖, 維多利亞尼羅河 (Zambeze?)。

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. 120744)

  最不相关 (LC) ; Date assessed: 16 December 2015

CITES (Ref. 115941)

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
FAO(Publication : search) | FishSource |

更多信息

国家
FAO区域
生态系
标本纪录
简介
Stocks
生态学
食性
食物相
食物消耗量
定量
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
参考文献
养殖
养殖信息
品种
遗传学
基因序列
遗传率
疾病
加工
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

下载 XML

网络资源

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00595 - 0.02787), b=2.84 (2.66 - 3.02), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.2   ±0.3 se; Based on size and trophs of closest relatives
回复力 (Ref. 69278):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec = 502).
脆弱性 (Ref. 59153):  Low to moderate vulnerability (29 of 100) .