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Fecundity and Spawning Frequency of Caged Bluntnose Minnows–Fractional Spawners
Author(s) -
Gale William F.
Publication year - 1983
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1983)112<398:fasfoc>2.0.co;2
Subject(s) - fecundity , fishery , biology , avian clutch size , zoology , reproduction , ecology , demography , population , sociology
Eleven pairs of bluntnose minnows Pimephales notatus produced from 7 to 19 clutches of eggs between May 27 and August 28. Clutches ranged in size from 5 to 547 eggs. Average clutch size ranged from 93 to 239. The total number of eggs spawned per pair ranged from 1,112 to 4,195 (mean = 2,396). Intervals between spawning sessions (clutches) ranged from 2 to 14 days (mean = 5.3; mode = 5). Spawning usually occurred at night. Received August 5, 1982 Accepted February 25, 1983