基于内壳生长纹的秋季东印度洋鸢乌贼生长特性  

Growth characteristics of Sthenoteuthis oualaniensis based on growth increments of gladius in the Eastern Indian Ocean in autumn

作　　者：郭有俊 张丽姿 刘毅 曾笑薇 招春旭 李渊 颜云榕[1,2,4] GUO Youjun;ZHANG Lizi;LIU Yi;ZENG Xiaowei;ZHAO Chunxu;LI Yuan;YAN Yunrong(Fisheries College,Guangdong Ocean University,Zhanjiang 524088,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang),Marine Resources Big Data Center of South China Sea,Zhanjiang 524013,China;Third Institute of Oceanography,Ministry of Natural Resources,Xiamen 361005,China;Guangdong Provincial Engineering and Technology Research Center of Far Sea Fisheries Management and Fishing of South China Sea,Zhanjiangg 524088,China)

机构地区：[1]广东海洋大学水产学院,广东湛江524088 [2]南方海洋科学与工程广东省实验室(湛江)红树林保护研究中心,广东湛江524013 [3]自然资源部第三海洋研究所,福建厦门361005 [4]广东省南海深远海渔业管理与捕捞工程技术研究中心,广东湛江524088

出　　处：《水产学报》2022年第11期2076-2083,共8页Journal of Fisheries of China

基　　金：南方海洋科学与工程广东省实验室(湛江)资助项目(ZJW-2019-08);全球变化与海气相互作用专项(二期)(GASI-01-EIND-YD01aut/spr);广东省南海深远海渔业管理与捕捞工程技术研究中心配套经费。

摘　　要：内壳是头足类生长信息的载体,对头足类的年龄和生长研究有重要意义。实验根据2019年9—10月在东印度洋海域采集的鸢乌贼样本,研究鸢乌贼内壳长度与胴长和体质量关系及鸢乌贼不同胴长组、不同群体、不同成熟度和不同性别之间的生长特性及其差异。结果显示,鸢乌贼内壳长度与胴长呈线性关系(R^(2)=0.980),与体质量呈幂函数关系(R^(2)=0.950),胴长与体质量呈幂函数关系(R^(2)=0.944)。鸢乌贼生长率随胴长增大而增大。中型群和微型群之间生长率差异显著(P=0.000<0.05),中型群生长率(0.051~0.071 cm/d)高于微型群(0.050~0.058 cm/d)。中型群未成熟鸢乌贼生长率大于成熟期鸢乌贼,且雌性鸢乌贼生长率大于雄性;微型群鸢乌贼生长率的成熟度和性别差异不显著(P=0.253>0.05)。分析认为,内壳长度与体质量的拟合度高于胴长与体质量的拟合度,所以内壳长度更适合作为分析生长关系的指标。本研究中高胴长组鸢乌贼的生长率大于低胴长组。中型群鸢乌贼在种内竞争中优于微型群,所以中型群的生长率更高。中型群雄性鸢乌贼的早熟现象导致其生长率低于雌性。微型群鸢乌贼的生长率范围较窄和较低,使得其性别间的生长差异不明显。研究表明,鸢乌贼内壳可作为生长方面的研究材料,且鸢乌贼不同胴长组、不同群体、不同成熟度和不同性别之间的生长有差异。Gladius is an information carrier of Cephalopoda growth, which is of great significance for the study of the age and the growth of Cephalopoda. Based on the samples collected in Eastern Indian Ocean in autumn, the relationships between gladius length and mantle length and body weight were studied. The growth differences among different mantle length groups, different populations, different maturation stages and different genders of Sthenoteuthis oualaniensis were discussed. The results showed that there was a linear relationship between the gladius length and mantle length(R^(2)=0.980), and a power function relationship between gladius length and body weight(R^(2)=0.950), and the mantle length had a power function relationship with the body weight(R^(2)=0.944), too.The growth rate of S. oualaniensis increased with the increase of mantle length. There was significant difference in the growth rate between the medium and dwarf form of S. oualaniensis(P=0.000<0.05) and the growth rate of medium form(0.051-0.071 cm/d) was greater than that of the dwarf form(0.050-0.058 cm/d). The growth rate of the immature S. oualaniensis was greater than that of the mature S. oualaniensis in the medium form, while the maturity difference of the dwarf form was not obvious(P=0.253>0.05). The growth rate of the female S. oualaniensis was greater than that of the male in the medium form, while there was no difference of growth rate between the female and male of S. oualaniensis in the dwarf form. According to the analysis, the degree of fitting between gladius length and body weight was higher than that between mantle length and body weight, so the gladius length was more suitable as an indicator for growth relationship analysis than body length. The growth rate of the high mantle length group was higher than that of the low mantle length group. The growth rate of medium form was higher, because medium form had an advantage in intraspecific competition. The gonad development resulted in the decrease of growth rate of S. oualaniensis, wh

关 键 词：鸢乌贼 生长率 内壳 生长纹 东印度洋 

分 类 号：S937.3[农业科学—渔业资源]