Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Moronidae
Etymology: chrysops: chrysops (Greek), meaning golden eye (Ref. 79012).
Environment / Climate / Range
Freshwater; demersal; potamodromous (Ref. 51243). Temperate; ? - 31°C (Ref. 12741), preferred ?; 60°N - 22°N, 110°W - 64°W
North America: St. Lawrence-Great Lakes, Hudson Bay (Red River) and Mississippi River basins from Quebec to Manitoba in Canada and south to Louisiana in USA; and from Mississippi River in Louisiana to Rio Grande in Texas and New Mexico, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 28.0  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref. 5723); common length : 31.8 cm TL male/unsexed; (Ref. 12193); max. published weight: 3.1 kg (Ref. 4699); max. reported age: 9 years (Ref. 12193)
Occur in lakes, ponds and pools of small to large rivers (Ref. 5723, 10294). Juveniles feed on small invertebrates such as cladocerans, copepods, and midge larvae. Adults are piscivorous, consuming shad, silversides, and occasional young sunfish (Ref. 10294).
Assuming same mode of reproduction as in M. saxatilis.
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 Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Aquaculture: experimental; gamefish: yes
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00591 - 0.01944), b=3.09 (2.92 - 3.26), based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±0.68 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.23-0.73; tmax=9).
Prior r = 0.67, 2 SD range = 0.44 - 1.04, log(r) = -0.4, SD log(r) = 0.22, Based on: 1 M, 11 K, 2 tgen, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153
): Moderate vulnerability (42 of 100) .