Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς). Temperate; 45°N - 37°N
North America: Atlantic Slope of USA from Hudson River drainage in Vermont and New York, south to Potomac River drainage in Virginia; upper Ohio River drainages in south New York to West Virginia (Ref. 86798); Canada from British Columbia to Newfoundland and Nova Scotia (Ref. 52559), Northwest Territories, and Yukon Territory (Ref. 119194).
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm 9.4 range ? - ? cm
Max length : 16.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 86798); common length : 9.3 cm TL αρσενικό/απροσδιόριστο; (Ref. 12193); μεγ. αναφερόμενη ηλικία: 4 έτη (Ref. 12193)
Margariscus margarita is almost identical to Margariscus nachtriebi but can be distinguished from this species by having larger scales and usually 50-62 lateral scales (Ref. 86798).
Inhabits pools of upland creeks and small rivers, and also ponds and lakes. Usually found over sand or gravel (Ref. 86798). Feeds on copepods, cladocerans, chironomids, beetles, filamentous algae, and Chara (Ref. 1998). Spawns during the spring (Ref. 1998).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Spawning occurs in shallow rivers with moderate current, on sand or gravel. Males maintained territories 20.3 cm wide (at least 1.83 m apart from each other). A ripe female is driven onto the territory. The male places his pectoral fin beneath the female's body anteriorly, and his caudal fin placed over the caudal peduncle of the female. The pair vibrates and the eggs are deposited. Females spawn with different males.
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 Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
δόλωμα: occasionally
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00250 - 0.01453), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.36 se; based on food items.
Ελαστικότητα (Ref.
120179): Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (tm=4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 126 [67, 239] mg/100g; Iron = 0.678 [0.382, 1.287] mg/100g; Protein = 17.5 [16.4, 18.6] %; Omega3 = 0.945 [0.399, 2.263] g/100g; Selenium = 11.4 [4.4, 33.9] μg/100g; VitaminA = 64.5 [20.0, 210.9] μg/100g; Zinc = 1.19 [0.76, 1.75] mg/100g (wet weight);
