分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Centrarchiformes (Basses)
鱸形目 (Basses) >
Percichthyidae (Temperate perches)
鮨鱸科 (Temperate perches)
Etymology: Percichthys: Greek, perke = perch + Greek, ichthys = fish (Ref. 45335).
More on author: Jenyns.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 溫帶
South America: Santa Cruz-Chico systems in Argentina.
南美洲: 在阿根廷的聖克魯茲-黑肉葉刺莖藜的系統。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 22.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 55324)
簡短描述
型態特徵 | 形態測量圖
臀鰭軟條: 8 - 11. Differs from its congeners by the dentigerous arm of premaxilla about 1.6-1.9 the height of ascending process (vs. 1.5 or more than 2 times that height), and the following combination of characters: quadrate-mandibular articulation at posterior half of orbit; mouth hypognathous; posterior border of maxilla at about anterior border of pupil, between the posterior border of lachrymal and anterior half of the infraorbital 2; hyoid artery piercing dorsal hypohyal; 3 predorsal bones; one supernumerary spine on first dorsal pterygiophore; 8 trisegmented pterygiophores in dorsal fin; 3rd or 4th dorsal fin spine the longest; anal fin origin slightly behind the origin of rayed portion of dorsal fin; pectoral and pelvic fins of similar length, being 60-75% HL and 70-110% body depth; 15-16 pectoral fin rays; 8-11 anal fin rays; 45-49 caudal fin rays (Ref. 55324).
有別於它的同類前頜骨的藉由有齒手臂大約 1.6-1.9 高度向上突起 (vs.1.5個或更多比較兩倍那高度), 與下列的組合特徵: 在眼窩的後半段的方骨-顎骨的關節; 嘴 hypognathous; 於大約瞳孔的前緣的顎骨的後緣, 在淚骨的後緣之間與前半部的眶下 2; U 字形的動脈刺骨的背部 hypohyal; 3個前背骨; 在第一背鰭支鰭骨上的一根額外的棘; 在背鰭的 8個 trisegmented 支鰭骨; 第三或第 4根背鰭棘最長的; 臀鰭起源些微地在背鰭的有鰭條的部分的起源後面; 胸鰭與相似長度，存在 60-75% HL 與 70-110% 體高的腹鰭; 15-16個胸鰭鰭條; 8-11個臀鰭棘條; 45-49個尾鰭鰭條.(參考文獻 55324)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在阿根廷的聖克魯茲-黑肉葉刺莖藜的系統。
López-Arbarello, A., 2004. Taxonomy of the genus Percichthys (Perciformes: Percichthyidae). Ichthyol. Explor. Freshwat. 15(4):331-350. (Ref. 55324)
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this BS (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.1 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
