分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Ossancora: Derived from the Latin oss, meaning bone, and ancora, meaning anchor, in reference to the shape and articulation of the pectoral spine and posterior cleithral and coracoid processes which resemble the shank and flukes, respectively, of a Danforth anchor.; asterophysa: Specific name is derived from the Greek aster, meaning star, and physa, meaning bladder, alluding to the proliferation of diverticula along the periphery of the gas bladder which distinguishes species from Ossancora eigenmanni. An adjective..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical
South America: Amazonas basin in Bolivia, Brazil and Peru; Ilha do Marajó near the mouth of the rio Amazonas to laguna Yarinacocha, an oxbow lake connected to the río Ucayali; río Mamoré and upper Guaporé, Madeira drainage.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 16.8 cm TL オス/雌雄の選別がない; (Ref. 111518); 最大公表体重: 62.00 g (Ref. 111518)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 6. Can be diagnosed from Ossancora punctata by having maxillary barbel with elongate fimbriae inserted in two distinct rows along anterior margin, one dorsally and one ventrally, mental barbels with elongate fimbriae, and anterior nuchal plate reduced, diamond shaped, not sutured to epioccipital. Can be distinguished from Ossancora eigenmanni and Ossancora fimbriata by having the unique combination of gas bladder with numerous diverticula that are thin, moderately elongate (often branched), and grouped in roughly paired, small fascicles along the periphery of anterior face, shoulder and lateral walls of anterior chamber as well as lateral walls and posterior face of posterior chambers (vs. peripheral diverticula absent or few, restricted to anterolateral shoulder and sometimes anterior face of the anterior chamber in Ossancora eigenmanni; terminal diverticula lacking or indistinguishable from other peripheral diverticula (vs. short terminal diverticula present in Ossancora fimbriata; infranuchal plate not greatly expanded ventrally (vs. greatly expanded ventrally, reaching level of posterior coracoid process in adults in Ossancora fimbriata); nuchal foramina absent (vs. usually present, except in some large adults, in Ossancora fimbriata); less than 20 teeth per ramus on premaxilla and dentary (vs. 25-50 in Ossancora fimbriata); mental barbel with elongate fimbriae in single row (vs. two rows in Ossancora fimbriata) (Ref. 92411).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Birindelli, J.L.O., 2011. Ossancora, new genus of thorny catfish (Teleostei: Siluriformes: Doradidae) with description of one new species. Proc. Acad. Nat. Sci. Phila. 161:117-152. (Ref. 92411)
Human uses
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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 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00514 - 0.01618), b=3.01 (2.85 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 2.8 ±0.4 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).
