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) >
Elassomatidae (Pygmy sunfishes)
小日鱸科 (Pygmy sunfishes)
Etymology: Elassoma: Greek, elasson = smaller + Greek, soma = body (Ref. 45335).
More on author: Jordan.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 居於水底的; pH range: 6.5 - 7.5; dH range: 10 - 20. 溫帶; 10°C - 25°C (Ref. 12468); 38°N - 29°N
North America: Lower Roanoke River drainage, North Carolina; south to middle parts of St. Johns River, Florida; west to Brazos River drainages, Texas; and north to lower Wabash River drainage, Indiana and Illinois, USA.
北美洲: Roanoke 河流域下游, 北卡羅萊那州; 南至聖約翰河的中央部份，佛羅里達; 西至布拉索斯河流域，德克薩斯; 而且北至娃巴許河下游河流域，印地安那州與伊利諾州，美國。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 4.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 3.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大年齡: 3.00 年 (Ref. 12193)
Body shape (shape guide): fusiform / normal; Cross section: oval.
Adults occur in swamps, heavily vegetated sloughs and small sluggish streams, usually over mud (Ref. 10294, 58020). They feed on microcrustacea together with midge larvae, larger crustacea (isopods and amphipods), mayfly nymphs, and small snails and clams (Ref. 10294). Oviparous, eggs are deposited in aquatic vegetation, preferably on strands of Ceratophyllum sp. when available (Ref. 58020).
出現在沼澤,長滿植物的泥坑與小的緩動性的溪流, 通常在泥上面.(參考文獻 10294,58020) 卵生的, 卵被沈積在水生植物, 可能地在 Ceratophyllum sp. 的濱上，當有用的時候.(參考文獻 58020) 捕食 microcrustacea 伴隨著蚊仔魚，較大的 crustacea(等足目動物與片腳類動物) ，孚游類蛹與小的蝸牛與蛤.(參考文獻 10294)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: Roanoke 河流域下游, 北卡羅萊那州; 南至聖約翰河的中央部份，佛羅里達; 西至布拉索斯河流域，德克薩斯; 而且北至娃巴許河下游河流域，印地安那州與伊利諾州，美國。
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 29 November 2011
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.7 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Fec=145).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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