分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性.
Asia: Myanmar. Known from the type locality in the Sittang River drainage, southern Myanmar (Ref. 80395)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 3.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 80397)
背棘 (总数) : 1; 背的软条 (总数) : 4 - 5; 脊椎骨: 32 - 33. Akysis portellus is most similar to A. longifilis, which occurs sympatrically in the Sittang River drainage. It is distinguished from A. longifilis in having a shorter adipose-fin base, smaller mouth and a more rounded head shape when viewed dorsally (Ref. 80397).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Ng, H.H., 2009. Akysis portellus sp. Nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar. Journal of Threatened Taxa 1(1):2-8. (Ref. 80397)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
