分類 / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Olyra: Greek, olyra = a kind of grain (Ref. 45335); saginata: Derived from the Latin verb sagino, meaning to fatten, cram or to feast, in allusion to the relatively deep body of this species compared to all other congeners from the northeastern part of the Indian subcontinent.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical
Asia: Palak, Sala and Tuisi rivers (all tributaries of the Kaladan River) in Mizoram, India.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 8.6 cm SL オス/雌雄の選別がない; (Ref. 96386)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 8; 臀鰭: 17 - 19; 脊つい: 46 - 49. Olyra saginata can be diagnosed from all species of the genus Olyra by the possession of the following unique combination of characters: interorbital distance 27.9-35.9% HL; 54-66 pored lateral line scales; body depth at anus 10.5-12.0% SL; length of adipose-fin base 17.3-22.4% SL; adipose fin separate from upper principal caudal-fin rays; post-adipose distance 11.8-14.3% SL; caudal peduncle length 14.8-17.7% SL; and caudal peduncle depth 7.8-8.9% SL (Ref. 96386).
Found in a shallow stream with moderate to strong current and substrate composed of sand, pebble and rocks. Occurs in association with the following fish species: Badis spp. (Badidae), Rasbora rasbora (Cyprinidae), Garra spp, (Cyprinidae), Glyptothorax chimtuipuiensis (Sisoridae), G. caudimaculatus (Sisoridae) and Pseudolaguvia nubila (Sisoridae) (Ref. 96386).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Ng, H.H., Lalramliana and H. Lalthanzara, 2014. Olyra saginata, a new species of bagrid catfish (Actinopterygii: Siluriformes) from northeastern India. Zootaxa 3821(2):265-272. (Ref. 96386)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00408 - 0.01859), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.1 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 (10 of 100).
