分類 / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Hypoptopoma: Greek, hypo = under + Greek, optoma, opsomai = to look at, to watch + Greek, poma = cover, operculum (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: across the central and lower Rio Amazonas basin; including Rio Tocantins basin. It is the only species known for northeastern coastal rivers.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 10.8 cm SL オス/雌雄の選別がない; (Ref. 111115); 最大公表体重: 26.66 g (Ref. 111115)
簡単な記述
検索表 | 形態学 | 形態計測学
脊つい: 26. This species is distinguished from its congeners except H. elongatum, by the presence of a patch of odontodes on the anterolateral surface of the cleithrum at the opening to the branchial chamber. It is distinguished from H. elongatum by having a shorter caudal peduncle, with caudal-peduncle length 26.0-36.0 (32.0) (vs. 32.3-36.3 (34.4); t-test, p < 0.001); with a deeper, more robust caudal peduncle, caudal-peduncle depth 8.8-11.0 (10.1) (vs. 7.9-8.8 (8.4); t-test, p < 0.001); by the round to slightly acute snout (vs. snout appearing pointed due to slight lateral inflexion between rostral plate and first infraorbital); by fewer plates along medial series 21-22 (22) (vs. 23); and by having light brown caudal-fin lobes (vs. dark lobes) (Ref. 84367).
Facultative air-breathing in the genus (Ref. 126274)
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Aquino, A.E. and S.A. Schaefer, 2010. Systematics of the genus Hypoptopoma Günther, 1868 (Siluriformes, Loricariidae). Bull. Amer. Mus. Nat. Hist. 336:1-110. (Ref. 84367)
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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00463 - 0.01795), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
