分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Akysidae (Stream catfishes)
河鯰科 (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); clavulus: The specific name is derived from the Latin clavus (nail), referring to the conical tubercles on the head and body of this species..
More on authors: Ng & Freyhof.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
Asia: Cai and Duc My River drainages in central Viet Nam.
亞洲: 在越南中部中的 Cai 與 Duc 我的河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 52824)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 1; 背的軟條 (總數) : 5; 脊椎骨: 32 - 34. Mouth subterminal; anterior and posterior nostrils separated by distance greater than length of nasal-barbel base; emarginate caudal fin; 3-5 serrae on posterior edge of pectoral spine; evenly-sloping ethmoidal region, sides of head gently curving; 1+ 5-6 gill rakers on first branchial arch; conical-shaped tubercles on head and body; lightly contrasting color pattern, and tubercles arranged in prominent longitudinal rows on ventral third of body (Ref. 52824).
嘴接近端位的; 被距離鼻骨-觸鬚基底的大於長度分開的前面與後面的鼻孔; 邊緣微凹的尾鰭; 在胸棘的後緣上的 3-5個鋸齒; 均勻地-傾斜的篩骨區域, 頭側逐漸彎曲的; 在第一個鰓弓上的 1+5-6 鰓耙; 在頭部與身體上的錐形-形狀的小瘤; 輕輕的對比彩色斑紋 , 與小瘤在腹面身體中的第三上排列成突出的縱列了。 (參考文獻 52824)
Found in hilly landscape streams and small rivers with a width of about 15-30 m (Ref. 52824). Occurs only in shallow riffles, hiding under coarse gravel and larger single stones (Ref. 52824).
發現於多丘陵的風景溪流了，而且小的河具有一個大約 15-30 公尺的寬度。 (參考文獻 52824) 生存只在淺灘急流中, 在粗礫石與比較大的單一石頭下面藏.(參考文獻 52824)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
亞洲: 在越南中部中的 Cai 與 Duc 我的河流域。
Ng, H.H. and J. Freyhof, 2003. Akysis clavulus, a new species of catfish (Teleostei: Akysidae) from central Vietnam. Ichthyol. Explor. Freshwat. 14(4):311-316. (Ref. 52824)
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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).
營養階層 (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
