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No image available for this species; drawing shows typical species in Danionidae.
分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Cypriniformes (Carps) > Danionidae (Danios) > Chedrinae
Etymology: crassus:Name from Latin adjective 'crassus' meaning stout or thick, referring to the body form in comparison with other species.
Environment: milieu / climate zone / 深さの範囲 / distribution range 生態学
This species is distinguished from all its congeners by the following characters: venter keeled from mid-point of chest, between the posterior base of the pectoral fin and along the abdomen up to the anus, and possessing 11½-12½ (vs. 7-9) branched anal-fin rays; differs further from C. morar and C. ukhrulensis by possessing more lateral-line scales 45-51 (vs. 38-42 in C. morar and 35–37 in C. ukhrulensis), more predorsal scales 20-23 (vs. 17-18 in C. morar and 14 in C. ukhrulensis) and more lateral transverse scales ½7/1/3½ (vs. 5/1/2 in both C. morar and C. ukhrulensis); differs from C. jaya in having fewer lateral-line scales 45-51 (vs. 52-60), more lateral transverse scales ½7/1/3½ (vs. 5/1/3) and more pharyngeal tooth-rows 3 (vs. 2). Colouration: dorsum is brownish, lighter towards flank; lower half of body and belly silvery or pale white; caudal fin hyaline with black pigment distally, while other fins are hyaline without markings (Ref. 120895). Cross section: circular.
Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lalramliana, L., S. Lalronunga and M. Singh, 2019. Cabdio crassus, a new species of cyprinid fish (Teleostei: Cyprinidae) from the Kaladan River of Mizoram, India. Zootaxa 4657(1). (Ref. 120895)
Phylogenetic diversity index (参照 82804): PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00294 - 0.01293), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照 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 (10 of 100). 🛈
