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北太平洋柔鱼角质颚形态及生长年间差异
引用本文:方舟,陈新军,瞿俊跃,李楠,李建华.北太平洋柔鱼角质颚形态及生长年间差异[J].上海海洋大学学报,2020,29(1):109-120.
作者姓名:方舟  陈新军  瞿俊跃  李楠  李建华
作者单位:上海海洋大学 海洋科学学院,上海 201306;农业农村部大洋渔业开发重点实验室,上海 201306;大洋渔业资源可持续开发教育部重点实验室,上海 201306;国家远洋渔业工程技术研究中心,上海 201306;上海海洋大学 海洋科学学院,上海 201306;农业农村部大洋渔业开发重点实验室,上海 201306;大洋渔业资源可持续开发教育部重点实验室,上海 201306;国家远洋渔业工程技术研究中心,上海 201306;青岛国家海洋科学技术实验室 海洋渔业科学与食物产出过程功能实验室,山东 青岛 266237;上海海洋大学 海洋科学学院,上海 201306
基金项目:国家重点研发计划(2019YFD0901404);国家自然科学基金面上项目(41876141);农业农村部外海渔业开发重点实验室开放基金(LOF 2018-02)
摘    要:根据2010年、2015年和2016年在北太平洋海域所采集的柔鱼样本,分析其胴长、体质量及角质颚形态的年间差异和性别差异,并计算角质颚的月平均生长率,结合不同年份各月索饵场海表面温度(sea surface temperature,SST)和叶绿素a浓度(chlorophyll a,Chl.a)的分布,研究环境对角质颚形态和生长的影响。研究发现,3年的个体胴长和体质量均存在显著差异(P0.01),2016年的个体和角质颚的形态值最大,2015年的个体和角质颚形态值最小。不同年份间角质颚的各项参数均存在显著差异(P0.01)。分析角质颚形态值与胴长的关系发现,2010年生长参数b最大,2015年则最低。不同年份的角质颚月生长率中,2010年角质颚在8—9月有着较高的生长率,而2015年同期的生长率则最低。分析渔汛期索饵场SST和Chl.a的变化发现:2015年8—9月的SST相对其他年份较低,而2010年8—9月索饵场的Chl.a值较为分散,但高浓度(0.7 mg/m~3)所占比例较高;2016年由于适宜的SST和适宜的Chl.a,使得其个体有着形态较大的角质颚,同时个体也相对较大。不同年份间角质颚形态存在一定的差异,同时8—9月的SST和Chl.a的变化是影响该年度个体角质颚形态的主要因素之一。

关 键 词:柔鱼  北太平洋  角质颚  生长差异  海洋环境
收稿时间:2018/12/25 0:00:00
修稿时间:2019/1/22 0:00:00

Annual variation of beak morphology and growth models for neon flying squid (Ommastrephes bartramii) in north Pacific Ocean
FANG Zhou,CHEN Xinjun,QU Junyue,LI Nan and LI Jianhua.Annual variation of beak morphology and growth models for neon flying squid (Ommastrephes bartramii) in north Pacific Ocean[J].Journal of Shanghai Ocean University,2020,29(1):109-120.
Authors:FANG Zhou  CHEN Xinjun  QU Junyue  LI Nan and LI Jianhua
Institution:College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Oceanic Fisheries Exploitation, Ministry of Agriculture, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China;National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China,College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Oceanic Fisheries Exploitation, Ministry of Agriculture, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China;National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China;Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, Shandong, China,College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China,College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China and College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Oceanic Fisheries Exploitation, Ministry of Agriculture, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China;National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China
Abstract:According to the squid samples collected from 2010, 2015 and 2016, the mantle length, body weight and beak morphometrics of annual and sexual differences were analyzed, and the monthly beak growth rate was calculated, combined with the distribution of monthly sea surface temperature (SST) and Chlorophyll a (Chl.a) to study the potential influential factors on the beak morphology and growth. The results showed that the mantle length and body weight had significant difference between years, the largest beak morphometrics was the individuals in 2016, and the smallest was in 2010. The growth parameter b in 2010 was the largest, and that in 2015 was the lowest. The growth rate during August to September in 2010 had the highest beak morphometrics growth rate, and had lowest in 2015. The distribution status of SST and Chl.a, the SST during August to September in 2015 was lower than that in the other years, the distribution of Chl.a during August to September was dispersed, but the high concentration (>0.7mg/m3) had a large proportion; the beak and mantle were relatively larger in 2016 than in other years due to the suitable SST and Chl.a. The beak morphology had significant difference between different years, and the variation of SST and Chl.a during August to September is one of the main factors that affect the beak morphometics.
Keywords:Ommastrephes bartramii  north Pacific Ocean  beak  growth difference  oceanographic variation
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