The Rate of Growth and Sex Ratio for Seven Michigan Fishes
作者:
WilliamC. Beckman,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1949)
卷期:
Volume 76,
issue 1
页码: 63-81
ISSN:0002-8487
年代: 1949
DOI:10.1577/1548-8659(1946)76[63:TROGAS]2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The average size for the various age groups is presented for seven Michigan fishes: the bluegill (Lepomis m. macrochirus), yellow perch (Perca flavescens), pumpkinseed (Lepomis gibbosus), rock bass (Ambloplites r. rupestris), largemouth black bass (Micropterus salmoides), smallmouth black bass (Micropterus d. dolomieu), and the black crappie (Pomoxis nigro-maculatus). Ages were determined for 25,723 specimens. Only two species showed consistent sex differences in growth rate. The female yellow perch grew more rapidly than did the males, and the male rock bass were consistently larger than the females of corresponding age.
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