Guo Rui-Yu, Lu Hua-Jie, Sun Tian-Zi, Zhao Mao-Lin, Zhang Bi-Qiang, Yang Si-Zhe
1 College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China.
2 Key Laboratory of Marine Ecological Monitoring and Restoration Technologies, Shanghai 201306, China.
Ying Yong Sheng Tai Xue Bao. 2024 Jun;35(6):1716-1724. doi: 10.13287/j.1001-9332.202406.028.
To investigate the differences on morphological growth patterns of statolith of in the East China Sea during La Niña and normal years, we analyzed the samples of collected in the East China Sea by Chinese light purse seine fishery fleets from February to April in 2020 (a normal year) and 2021 (a La Niña year). The results showed that total statolith length (TSL), lateral dome length (LDL), wing length (WL), and maximum width (MW) could be used as characterization parameters to representing the morphological growth of statolith. The characterization parameters of statolith in differed significantly between different climate years and between different genders. The values of those characterization parameters of statolith were greater in normal year than those in La Niña year, which in both years were larger in females, except for TSL in males in La Niña year. The statolith growth of males were faster than that of females in different climate years. TSL, LDL, and WL increased faster in normal year, while MW increased faster in La Niña year. The relative size of statolith gradually slowed down with the growth of individuals.
为研究拉尼娜年和正常年份东海 的耳石形态生长模式差异，我们分析了中国灯光围网渔船队于2020年（正常年份）2月至4月以及2021年（拉尼娜年）在东海采集的 样本。结果表明，耳石总长（TSL）、侧穹长度（LDL）、翼长（WL）和最大宽度（MW）可作为表征耳石形态生长的参数。不同气候年份和不同性别之间， 的耳石表征参数存在显著差异。耳石的这些表征参数值在正常年份大于拉尼娜年，且在这两个年份中，除拉尼娜年雄性的TSL外，雌性的参数值均大于雄性。在不同气候年份，雄性耳石的生长速度快于雌性。TSL、LDL和WL在正常年份增长更快，而MW在拉尼娜年增长更快。耳石的相对大小随着个体的生长逐渐减缓。
