Northern and Southern Brook Lampreys (Ichthyomyzon fosser and I. gagei) in Minnesota

Northern and Southern Brook Lampreys (Ichthyomyzon fosser and I. gagei) in Minnesota

1987

The presence of two brook lampreys of the genus Ichthyomyzon in Minnesota is confirmed. The northern brook lamprey (I. Fossor) occurs in the Blackhoof Creek in the Lake Superior drainage. The southern brook lamprey (I. gagei) has been found in five streams in the St. Croix River drainage. At least three relatively distinct microhabitats are used by I. gagei during its life cycle. Adults prior to spawning are found in crevices beneath boulders in deep, fast water, whereas spawning is associated with gravel substrate at the head of riffles, and larvae burrow in fine substrate in quieter water. The reproductive biology of I. gagei in Minnesota is similar to that of conspecifics in the southern part of its range.

Cochran, Philip A.
Pettinelli, Timothy C.

St. Nobert College

15

Water Education, Outreach & Community Capacity

aquatic ecosystem
aquatic ecosystems
aquatic habitat
aquatic habitats
water biology & aquatic habitat
water biology and aquatic habitat
water biology & aquatic habitats
water biology and aquatic habitats
Fish Habitat
Fish-Habitat
Fish habitats
American Lamprey
Brook Lamprey
Lamprey
American Brook Lamprey
Lampetra appendix
Southern Lamprey

1980-1989

No

Public Domain

Minnesota Water Research Digital Library