分類 / Names
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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Macrognathus: Greek, makros = great + Greek, gnathos = jaw (Ref. 45335); albus: The specific name is derived from the Latin language meaning ‘white’, in reference to the color of the new fish..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Asia: Manimala River in Kerala, India.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 21.2 cm SL オス/雌雄の選別がない; (Ref. 97143)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 26 - 30; 背鰭 (合計) : 62 - 65; 肛門の骨: 3; 臀鰭: 56 - 62. Macrognathus albus can be distinguished by the following characters: absence of any bands or bars on body; 26- 29 irregular blotches on mid dorsal line from top of operculum to base of caudal; absence of pre-orbital spine; spinous part of dorsal fin originating considerably behind the end of pectoral fin; head longer and deeper, eyes located closely, body width lesser, pre dorsal and pre anal distances greater (Ref. 97143).
The type locality, Manimala River, is highly sinuous and generally rocky with deep pools at certain locations and sand deposit occurring as sporadic patches or fillings in the pools. It has more or less scanty riparian vegetation. The river has bed materials generally of coarser grade and very low sand content. The width of the river channel ranges from 45-110 m and water depth in the active channel during summer seasons ranges from 0.5 m-3 m. This species occurs together with the following fish species: Anguilla bengalensis, Salmostoma boopis, Danio malabaricus, Barilius bakeri, Gonoproktopterus kurali, Rasbora daniconius, Puntius mahecola, Haludaria fasciatus, Pethia ticto, Dawkinsia filamentosa, Systomus subnasutus, Batasio travancoria, Ompok malabaricus, Clarias dussumieri, Heteropneustes fossilis, Mesonoemacheilus triangularis, Bhavania australis, Xenentodon cancila, Aplocheilus lineatus, Parambassis thomassi, Etroplus maculatus, Etroplus suratensis, Anabas testudineus, Pristolepis malabaricus, Mastacembelus armatus, Macrognathus guentheri, etc. (Ref. 97143).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Plamoottil, M. and N.P. Abraham, 2014. Macrognathus albus (order: Synbranchiformes; family: Mastacembelidae), a new fish species from Kerala, India. Intl. J. Pure Appl. Zool. 2(2):100-105. (Ref. 97143)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00190 - 0.01001), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
