Summer sucker (Catostomus utawana)

Scientific name: Catostomus utawana Mather, 1886

Summer sucker (Catostomus utawana)

The Summer sucker (Catostomus utawana) is a freshwater fish of the family Catostomidae. Native range: North America, Known only from the Adirondack Mountains of New York State, USA in the Saint Lawrence and Hudson River drainages.

Biology

Dorsal soft rays (total): 11-12; Anal soft rays: 7. Catostomus utawana is distinguished from C. commersonii by the following characters: eye diameter twice or less into snout length (vs. more than twice into snout length); caudal peduncle depth at terminus more than twice into anal-fin length (vs. less than twice into anal-fin length for a small individual); dorsolateral scales of with radii in the dorsal ventral, anterior, and posterior fields (vs. scales with radii in the anterior and posterior fields); individuals rarely exceed 200 mm SL (vs. non-stunted adults of much greater lengths for C. commersonii). In breeding condition, this species is distinguished from C. commersonii by the following characters: pearl organs on anal and caudal fins and on scales found near the anal fin and ventral areas of the caudal peduncle on females (vs. none); pearl organs on nearly every scale and on all fins for males (vs. pearl organs on anal fin, caudal fin, and scales between); males with

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Catostomus utawana
Family
Catostomidae (Suckers)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
10.0
Environment
Freshwater; demersal
Climate
Temperate
Distribution
North America: Known only from the Adirondack Mountains of New York State, USA in the Saint Lawrence and Hudson River drainages.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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