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应用生态学报 ›› 2021, Vol. 32 ›› Issue (5): 1873-1880.doi: 10.13287/j.1001-9332.202105.035

• 研究论文 • 上一篇    下一篇

基于内壳的西非乌贼日龄与生长特性

瞿俊跃1, 周敏华1, 韩霈武1, 方舟1,2,3,4,5*, 陈新军1,2,3,4,5   

  1. 1上海海洋大学海洋科学学院, 上海 201306;
    2大洋渔业资源可持续开发教育部重点实验室, 上海 201306;
    3国家远洋渔业工程技术研究中心, 上海 201306;
    4农业农村部大洋渔业开发重点实验室, 上海 201306;
    5农业农村部大洋渔业资源环境科学观测实验站, 上海 201306
  • 收稿日期:2020-07-29 接受日期:2021-02-06 出版日期:2021-05-15 发布日期:2021-11-15
  • 通讯作者: *E-mail: zfang@shou.edu.cn
  • 作者简介:瞿俊跃,男,1996年生,硕士研究生。主要从事海洋渔业资源研究。E-mail:michael_qujy@126.com
  • 基金资助:
    国家自然基金项目(41876141)和农业农村部外海渔业开发重点实验室开放课题(LOF2018-02)资助

Age and growth characteristic of Sepia officinalis in the West Africa based on cuttlebones.

QU Jun-yue1, ZHOU Min-hua1, HAN Pei-wu1, FANG Zhou1,2,3,4,5*, CHEN Xin-jun1,2,3,4,5   

  1. 1College of Marine Sciences of Shanghai Ocean University, Shanghai 201306, China;
    2Ministry of Education Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Shanghai Ocean University, Shanghai 201306, China;
    3National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China;
    4Key Laboratory of Oceanic Fishe-ries Exploration, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China;
    5Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China
  • Received:2020-07-29 Accepted:2021-02-06 Online:2021-05-15 Published:2021-11-15
  • Contact: *E-mail: zfang@shou.edu.cn
  • Supported by:
    National Natural Science Foundation of China (41876141) and the Open Project of the Key Laboratory of Offshore Fisheries Development, Ministry of Agriculture and Rural Affairs (LOF2018-02).

摘要: 乌贼主要分布在北大西洋东部及非洲沿岸海域,是拖网渔业的重要捕捞对象,也是大西洋乌贼科最重要的商业种。本研究根据2015年7—8月西非沿岸采集的乌贼样本,测量了283 尾乌贼内壳外部形态参数,结合内壳日龄信息,对不同性别乌贼生长特性进行了研究。结果表明: 不同性别乌贼胴长和体重存在显著差异。通过读取内壳日龄,发现雌雄性优势日龄组均为80~100 d。内壳外部形态与日龄的拟合函数中,Logistic函数的拟合效果最佳。雌性个体内壳外部形态参数的最大似然估计值均大于雄性。雄性和雌性乌贼内壳长和内壳宽的绝对和瞬时相对生长率分别在110~120 d 和100~110 d 达到峰值。雄性和雌性的初次性成熟日龄分别为111 d和104 d。不同性别乌贼的生长差异可能与栖息环境密切相关。

关键词: 西非沿岸, 乌贼, 内壳, 年龄与生长

Abstract: Common cuttlefish is mainly distributed in the eastern North Atlantic and the coastal waters of Africa, which is an important fishing target for trawl fisheries and the most important commercial species in the Atlantic sepia family. In this study, based on the cuttlefish samples collected from the west Africa coast in July-August 2015, we measured the outer morphological parameters of 283 cuttlebones. Combined with the age information of cuttlebones, we examined the growth characteristics of cuttlefish of different genders. The results showed that there were significant differences in body length and body weight between different genders. The dominant age group of female and male was both 80-100 days. Among the fitting functions of the outer shape of cuttlebone and the age, the logistic function was the best one. The females' maximum likelihood estimates of the outer morphological parameters of cuttlebone were larger than that of males. The absolute and instantaneous relative growth rates of the cuttlebone length and width of male and female cuttlefish peaked at 110-120 days and 100-110 days, respectively. The age of males and females at first sexual maturity was 111 days and 104 days, respectively. The growth difference between genders might be related to environment.

Key words: coastal west Africa, Sepia officinalis, cuttlebone, age and growth