Life History and Abundance of Mysis relicta in Lake Michigan
- 1 September 1978
- journal article
- research article
- Published by Canadian Science Publishing in Journal of the Fisheries Research Board of Canada
- Vol. 35 (9) , 1165-1170
- https://doi.org/10.1139/f78-187
Abstract
Mysis relicta was sampled in Lake Michigan approximately monthly with an epibenthic sled, August 1975–July 1976. Total numbers ranged from a low of 23 m−2 in February to a high of 337 m−2 in May and averaged 188 m−2. It was possible to partition the population into five instars. Major peaks in proportions of first instar individuals occurred in March, July, and November. It took about 1 yr for first instar individuals to reach the fourth instar. Growth averaged a little less than 1 mm/mo. Males and females reached maturity and bred in the fourth instar, so females produced their first brood at 1 yr of age. Males died at this time, but females were found to molt to the fifth instar, mate, and produce a second brood approximately 4 mo later. Key words: Mysis relicta, Lake Michigan, life history, abundanceThis publication has 3 references indexed in Scilit:
- Long-Terra Changes in the Limnology and Macrozooplankton of a Large British Columbia LakeJournal of the Fisheries Research Board of Canada, 1970
- The Vertical Migration of Mysis relicta in Lakes Huron and MichiganJournal of the Fisheries Research Board of Canada, 1960
- Pontoporeia and Mysis in Wisconsin LakesEcology, 1927