Population Characteristics and Physical Condition of Alewives, 'Alosa Pseudoharengus', in a Massive Dieoff in Lake Michigan, 1967.

摘要

The length, age and sex compositions of dead and dying alewives collected in June 1967 at six locations in southern, central, and northern Lake Michigan are compared with those of fish taken in experimental trawls at five locations in April and June 1967. Behavior at the time of death, condition of the body and gonads, stomach contents, and the incidence of Saprolegnia and subcutaneous hemorrhages also are described for alewives in the dieoff.