分類 / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Tetragonopterinae
Etymology: Tetragonopterus: Name from Greek words: 'Tetra' meaning four; 'gonia' meaning angle; 'pteron' for fin; referring to the evident tetragonal shape of the body (Ref. 124043); carvalhoi: Named for Marcelo Rodrigues de Carvalho (USP), the leader of the expedition to rio Jari which resulted in the collection of this new species and in recognition of his contributions to our knowledge of the Neotropical ichthyology..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm SL オス/雌雄の選別がない; (Ref. 96868)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 9; 臀鰭: 29 - 34; 脊つい: 28. This species is distinguished from its congeners by having a lozenge-shaped spot on the caudal peduncle (vs. rounded to square spot on the other species); differs from T. anostomus, T. denticulatus, T. juruena, T. kuluene by the number of principal teeth in dentary 4 (vs. 5-6) and with larger and more robust teeth (vs. thinner and sharper teeth); differs from T. anostomus, T. araguaiensis by the number of gill-rakers on lower limb of the first gill arch 12-14 (vs. 16-20); differs from T. rarus by not having dark longitudinal stripes on the trunk (vs. presence) and by having 3.5 (vs. 4.5-5.5) scale rows between lateral line and pelvic-fin origin; differs from T. anostomus by having terminal mouth (vs. subsuperior mouth); differs from Tetragonopterus argenteus by the predorsal scales 7-8 (vs. 11-17); differs from T. franciscoensis by the number of olfactory lamellae 19-22 (vs. 11-17); differs from T. denticulatus by having humeral marks separated by only one vertical scale row (vs. 3 vertical scale rows); differs from T. ommatus by the teeth on the maxilla 2-4 (vs. 7-8) and by having the dark mark centered on the caudal peduncle (vs. dark mark limited to the posterior portion of caudal peduncle) (Ref. 124043).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Silva, G.S.C., B.F. Melo, C. Oliveira and R.C. Benine, 2016. Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species. Zootaxa 4200(1):1-46. (Ref. 124043)
Human uses
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ(食中毒の名前)速度泳ぐ 型式カマOtoliths脳視覚
用具
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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 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.00852 - 0.05619), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).