Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Sidney B. Morkert"'
Autor:
Terry J. Morse, Mark P. Ebener, Ellie M. Koon, Sidney B. Morkert, David A. Johnson, Douglas W. Cuddy, John W. Weisser, Katherine M. Mullett, Joseph H. Genovese
Publikováno v:
Journal of Great Lakes Research. 29:599-614
Publikováno v:
North American Journal of Fisheries Management. 18:966-971
We determined age at metamorphosis to the juvenile or parasitic phase for sea lampreys Petromyzon marinus in a highly productive Great Lakes tributary to determine if the age at metamorphosis was earlier than expected. Ages determined from statoliths
Autor:
Roger A. Bergstedt, Sidney B. Morkert
Publikováno v:
North American Journal of Fisheries Management. 10:484-486
Larval sea lampreys Petromyzon marinus Shrank Significantly in length after being fixed and preserved in 5 or 10% formalin. Most Shrinkage was within 2 h. The average shrinkage for 100-mm larvae was 3.8% in 5% formalin and 4.3% in 10% formalin. A Sin