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Growth, reproduction, mortality, distribution, and biomass of freshwater drum in Lake Erie

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Growth, reproduction, mortality, distribution, and biomass of freshwater drum in Lake Erie; 1984; Article; Journal; Journal of Great Lakes Research; Bur, Michael T.

Summary

Predominant age-groups in the Lake Erie freshwater drum Aplodinotus grunnienspopulation were 3, 4, and 5 as determined from gill net, trap net, bottom trawl, and midwater trawl samples. Age and growth calculations indicated that females grew faster than males. However, the length-weight relation did not differ between sexes and was described by the equation: log W = −5.4383 + 3.1987 log L. Some males became sexually mature at age 2 and all were mature by age 6. Females matured 1 year later than males. Three sizes of eggs were present in ovaries; the average total number was 127,000 per female for 20 females over a length range of 270 to 478 mm. Seasonal analysis of the ovary-body weight ratio indicated that spawning extended from June [...]

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Author :
Michael T. Bur
Publisher :
Elsevier

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Harvested on Thu Mar 31 04:41:52 MDT 2016 from MODS XML Service

Additional Information

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Type Scheme Key
local-index unknown 1000094
local-pk unknown 1000094
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/S0380-1330(84)71806-5
series unknown Journal of Great Lakes Research

Citation Extension

journalJournal of Great Lakes Research
parts
typevolume
value10
typeissue
value1
languageEnglish
citationTypeArticle

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