Comparative ecology of fish population dynamics in the new production and regenerated production systems

研究表明，颗粒鱼在人口动态中的latitudinal difference的生态基础是被调查的，并且知道其在鱼类种群中的丰度变化是很大的，而在2 - 3个等级中，在抑制亚热带水方面，相对于年度收获中的丰度变化到2- 3次，在人口中，人口中，抑制亚热带水的水平是相当大的。西太平洋地区的热带和亚热带水域的寄生虫生长在3-4个月后，孵化和短一代时间内成熟。Etrumeus teres在东海和南部开发了日本的亚热带水域，在6个月内形成了成熟的繁殖季节，几乎是一年的高潮。沙门氏菌黑色素菌的生长温度-亚北极水在与人口规模有关的繁殖和早期生命生态学中有很大的变化。Clupea Pallasii在2000年的一年中很弱，但在2001年在三洋湾建立了一个主要的一年课程。温度和粮食供应量已被发现是决定一年中班级强度的重要因素。

Ecological basis of the latitudinal differences in population dynamic of clupeid fishes was investigated, knowing that recruitment variability is as large as 2-3 order of magnitude in fish populations inhabiting the subarctic waters in contrast to 2-3 times difference in annual recruitment, levels in populations inhabiting the subtropical waters.・ Spratelloides gracilis inhabiting tropical and subtropical waters in the western Pacific becomes matured in 3-4 months after hatching and has short generation time.・ Etrumeus teres inhabiting the subtropical waters in the East China Sea and southern Japan becomes matures in 6 months and has prolonged spawning season almost year roud.・ Sardinops melanostictus inhabiting temperate-subarctic waters is largely variable in recruitment and changes spawning and early life ecology associated with population size.・ Clupea pallasii was weak in year class strength in 2000 but established a dominant year class in 2001 in Miyako Bay. Temperature and food availability were found to be important factors determining the year class strength.