分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Macrhybopsis: Greek, makros = great + Greek, ybos, -e, -on = rounded + Greek, opsis = appearance (Ref. 45335); aestivalis: aestivalis -- of the summer (Ref. 10294).
More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. ; 36°N - 26°N
North America: Rio Grande drainage in Texas and New Mexico, USA; south in Mexico to San Fernando River drainage.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 12.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 3672); common length : 6.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大年齡: 1.00 年 (Ref. 12193)
Inhabits sand and gravel runs of small to large rivers (Ref. 5723, 86798). Feeds on aquatic insect larvae dominated by midges (Ref. 10294).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
The pelagic-broadcast spawning behavior consisted of males pursuing a single female and nudging her abdominal region. When the female was ready to spawn, a single male wrapped around the female at which time eggs and milt were simultaneously expelled. Reproduction usually consisted of several individual spawning episodes with at least 10-min intervals between events (Ref. 35784).
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 08 November 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00239 - 0.00916), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.40 se; based on food items.
Generation time: 0.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tmax=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).