分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶
Africa: Ogowe and Congo River basins in Central Africa (Ref. 3188, 56367, 81628). Reports from West Africa (Ref. 4537) refer to Polypterus retropinnis lowei, which is now a synonym of Polypterus palmas (Ref. 122071).
非洲: 剛果河流域中游與歐固耶河河.(參考文獻 3188)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 34.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 51884)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 7 - 9; 臀棘 12-15; 脊椎骨: 55 - 58. Diagnosis: Polypterus retropinnis is distinguished from all other species of Polypterus except P. mokelembembe, P. ornatipinnis, P. teugelsi, P. polli and P. palmas in having a high predorsal-scale count: 26-34 vs. 11-25 (Ref. 56367). It differs from P. ornatipinnis, P. teugelsi and P. polli in having 56-59 lateral-line scales vs. 61-65 in P. ornatipinnis and P. teugelsi and 52-55 in P. polli; from P. palmas by having a single large black blotch on the pectoral-fin base vs. numerous small spots on posterior part of base; and from P. mokelembembe by having a narrower first dorsal-fin spine being 4,6-6,1% of head length vs. 6,4-8,1%, a greater internostril distance being 14,3-18,0% of head length vs. 11,6-13,7%, and more pectoral-fin rays, 30-34 vs. 23-29 (Ref. 56367). Jaws mostly about the same length, the upper jaw sometimes a little longer than lower jaw; pectoral fin not reaching dorsal-fin origin (Ref. 43035, 46852). In addition, living specimens of Polypterus retropinnis differ from all congeners in their iris coloration, which consists of creamy white areas and black dots alternating with each other around the iris; however, this character state is rarely visible in preserved specimens (Ref. 56367).
近圆柱形的身体.(参考文献 43035) 颚大部份大约相同的长度, 上颌有时稍微长度超过下颌.(参考文献 46852) Internostril 距离 14.3-18.0% 的头长.(参考文献 56367) 前背的长度 55.7-63.2% 的 SL.(参考文献 51884) 背部离鳍的数字: 7-9.(参考文献 56367) 第一背鳍棘狭窄又 4.6-6.1% 的头长.(参考文献 56367) 背鳍与尾鳍鳍条的数字: 13-16.(参考文献 51884,56367) 胸鳍不延伸到背鳍起點。 (參考文獻 43035) 硬鱗:(參考文獻 42904) 56-58個側線鱗片; 身體的周圍 30-38個鱗片; 26-34個前背的鱗片, 40-46個腹鰭前的鱗片.(參考文獻 56367) 身體的背面是灰色或者褐色的, 與腹面分得很開, 是淡黃色的.(參考文獻 46852) 在背面兩側上的網狀花紋有橄欖色的斑點;(參考文獻 41580) 也下頜有黑色的斑點, 區隔它和 Polypterus palmas.(參考文獻 44841,46861) 在它的基底的胸鰭 , 黃色, 在末梢部的側邊上具有一個黑色的斑點。 (參考文獻 41580,51884,56367) 其他的鰭有褐色斑點。 (參考文獻 41580)
Facultative air-breathing (Ref. 126274); Mostly found in little rivers, swamps and flooded zones (Ref. 4910, 41580, 46852). Carnivorous (Ref. 41580).
大部份发现于小河，沼泽与被水淹没的区域了。 (参考文献 4910, 参考文献 41580, 参考文献 46852) 肉食性.(参考文献 41580)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 剛果河流域中游與歐固耶河河.(參考文獻 3188)
Britz, R., 2007. Polypteridae. p. 168-173. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81628)
人类利用
渔业: 没有兴趣
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NutrientsMass 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 based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00195 - 0.01073), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.6 ±0.26 se; based on food items.
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 to moderate vulnerability (31 of 100).
