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Macrhybopsis aestivalis (Girard, 1856)

Speckled chub
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Macrhybopsis aestivalis
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United States (contiguous states) country information

Common names: Speckled chub
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Rio Grande drainage in Texas and New Mexico (Ref. 86798). Usually found in central Rio Grande; absent in the upper; rare in the lower drainage (Ref. 86798). Also Ref. 5723, 10294. Status of threat: threatened. Criteria: 1,3 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

Carpa pecosa, Spættet døbel, Tähniline saleturbik, ... more

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | 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 生态学

; 淡水 居于水底的.   亞熱帶的; 36°N - 26°N

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

North America: Rio Grande drainage in Texas and New Mexico, USA; south in Mexico to San Fernando River drainage.
北美洲: 密西西比河流域從俄亥俄州與西維吉尼亞西至明尼蘇達州與內布拉斯加而且南至岸灣; 在德克薩斯與美國新墨西哥州的岸灣流域從阿拉巴馬州的 Choctawhatchee 河與佛羅里達至 Rio Grande, 與墨西哥。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 12.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3672); common length : 6.1 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 1.00 年 (Ref. 12193)

生物学特性     字汇 (例如 epibenthic)

Inhabits sand and gravel runs of small to large rivers (Ref. 5723, 86798). Feeds on aquatic insect larvae dominated by midges (Ref. 10294).

栖息于沙与碎石小型到大型河川的小支流。

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

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).北美洲: 密西西比河流域從俄亥俄州與西維吉尼亞西至明尼蘇達州與內布拉斯加而且南至岸灣; 在德克薩斯與美國新墨西哥州的岸灣流域從阿拉巴馬州的 Choctawhatchee 河與佛羅里達至 Rio Grande, 與墨西哥。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 08 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
营养阶层 (Ref. 69278):  3.2   ±0.40 se; based on food items.
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (tmax=1).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).