Department of Coastal Science, The University of Southern Mississippi, 703 East Beach Dr., Ocean Springs, MS 39564, USA.
J Fish Biol. 2009 Jul;74(10):2299-312. doi: 10.1111/j.1095-8649.2009.02237.x.
The interspawning interval, or spawning frequency, of wild three-spined stickleback, Gasterosteus aculeatus, was estimated using histological examination of postovulatory follicles (POF). Females in Alaskan lakes appeared to have as much as a 48 h delay between ovulation and ovoposition, yet the POF method could still be used to estimate the interspawning interval. In two Alaskan lakes the interspawning interval was estimated to range from 2.2 to 7.8 days among individual female G. aculeatus. These estimates were consistent with the range (2.5 to 5 days) of previous estimates among individual females from laboratory observations of spawning G. aculeatus, as well as anecdotal accounts of spawning intervals reported from wild populations in Canada (5-10 days). The interspawning interval of females increased during the course of the spawning season in Alaska, showing that the majority of female spawning activity occurred during the earliest portion of the approximate 6-week reproductive season. The increased interspawning interval appears to be related to a previously reported decrease in body condition in reproductive females during the breeding season. Thus, female G. aculeatus may be unable to sustain the initial rate of reproduction as energy stores that support the rapid growth of vitellogenic oocytes are depleted.
野生三刺鱼（Gasterosteus aculeatus）的繁殖间隔或繁殖频率，是通过对排卵后滤泡（POF）的组织学检查来估计的。阿拉斯加湖泊中的雌性鱼类在排卵和产卵之间似乎有长达 48 小时的延迟，但 POF 方法仍然可以用来估计繁殖间隔。在两个阿拉斯加湖泊中，个体雌性三刺鱼的繁殖间隔估计范围为 2.2 至 7.8 天。这些估计与实验室观察到的产卵三刺鱼个体之间的范围（2.5 至 5 天）以及来自加拿大野生种群的产卵间隔的传闻报道（5-10 天）一致。在阿拉斯加的繁殖季节过程中，雌性的繁殖间隔增加，表明大多数雌性繁殖活动发生在大约 6 周繁殖季节的最早部分。繁殖期间繁殖雌性的身体状况先前有报道称下降，繁殖间隔的增加似乎与之相关。因此，雌性三刺鱼可能无法维持最初的繁殖率，因为支持卵黄生成卵母细胞快速生长的能量储存被耗尽。
