Premium
Indeterminate Fecundity and Spawning Behavior of Captive Red Shiners–Fractional, Crevice Spawners
Author(s) -
Gale William F.
Publication year - 1986
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(1986)115<429:ifasbo>2.0.co;2
Subject(s) - hatching , biology , fecundity , zoology , clutch , avian clutch size , fish <actinopterygii> , fishery , ecology , reproduction , population , demography , physics , sociology , thermodynamics
Nine pairs of red shiners Notropis lutrensis spawned 5 to 19 clutches each (4,701 to 8,248 eggs; mean = 6,177) between 13 June and 28 August 1983 in plastic wading pools. Clutches contained from 131 to 1,661 eggs (mean = 585). Mean clutch size for individuals ranged from 410 to 1,060 eggs. Over a 9‐d period, 17 of 20 clutches were spawned between 0700 and 1200 hours. In horizontal crevices from 2 to 6 mm high, 62.3 and 22.5% of nearly 25,000 eggs were placed in the 2‐ and 3‐mm crevices, respectively. Spawning females preferred crevices formed by red, orange, and green plates (71.4% of over 17,000 eggs) to those formed by black, blue, yellow, and white plates. Two females expelled eggs in groups averaging 48 and 71 eggs. A fish in 24‐h light spawned 200 clutches (113,501 total eggs) in a 21‐month test; daily spawning sometimes occurred at high temperatures (up to 34°C). Hatching began in 4 d at 26–28°C; oversized eggs yielded oversized larvae.