中国水产科学2025，Vol.32Issue(3)：321-332,12.DOI:10.12264/JFSC2024-0318
管海马和海水青鳉昼夜行为节律的分析与比较
Analysis and comparison of circadian behavioral rhythms between Hippocampus kuda and Oryzias melastigma
摘要
Abstract
To explore the differences in circadian behavioral rhythms and the changing regularity of different fish species,and improve artificial culture technology,we analyzed and compared the circadian behavioral rhythms of Hippocampus kuda and Oryzias melastigma under the artificial culture conditions detailed in this paper.The results showed that under the conditions of light intensity of 2000 lx,temperature of 25±1 ℃,salinity of 25±0.5,and photoperiod of 14L∶10D,the behavioral rhythms of H.kuda and O.melastigma during the daytime are stronger than in the nighttime.H.kuda showed the strongest rhythm and the most abundant behavioral component between 08:00 and 10:00.The macroscopic behavior components included active behaviors(swimming 47.40±1.1％,crawling 3.0±0.6％,moving 4.80±0.7％),and inactive behaviors(swing 32.50±2.1％,resting 12.30±0.8％).The microcosmic behavior components included gill operculum movement 38.77±1.14 times/min,jaws movement 38.77±1.14 times/min,and eyeball rotation 108.50±5.52 r/min,dorsal fin movement 116.87±0.64 times/min and pectoral fin movement 67.81±2.27 times/min.The sub-strongest rhythmic period was 12:00-14:00,and the rhythmic behaviors were dominated by swinging with a percentage of 59.20±5.1％.O.melastigma also had the strongest activity between 08:00 and 10:00,in which the percentage of swimming amounted to 88.0±1.1％;the frequency of gill operculum movement was 407.88±3.8 times/min,jaw movement 407.88±3.8 times/min,eyeball rotation 7.38±0.9 r/min,dorsal fin movement 373.17±2.5 times/min,pectoral fin movement 400.83±6.8 times/min,and tail movement 416.58±7.7 times/min.Therefore,both H.kuda and O.melastigma have strong circadian behavioral rhythms,and the period of 8:00-10:00 is their peak period of behavioral activity,which is the strongest rhythm and the most abundant behavioral components.Therefore,the period of 08:00-10:00 can be selected as a suitable observation time for related behavioral studies.关键词
管海马/海水青鳉/昼夜节律/活动节律/行为组成Key words
Hippocampus kuda/Oryzias melastigma/circadian rhythm/active rhythm/behavior component分类
水产学引用本文复制引用
李加伟,林芃宏,徐永健..管海马和海水青鳉昼夜行为节律的分析与比较[J].中国水产科学,2025,32(3):321-332,12.基金项目
国家自然科学基金项目(41276123) （41276123）
宁波大学"海洋生物技术与海洋工程"学科群专项研究基金项目(422004582). （422004582）
