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生态学杂志 ›› 2021, Vol. 40 ›› Issue (8): 2478-2484.doi: 10.13292/j.1000-4890.202108.026

• 研究报告 • 上一篇    下一篇

日本海舍氏贝乌贼渔业生物学特性

王洪浩1,何涛1,陆化杰1,2,3,4,5*,陈子越1,宁欣1,刘凯1,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国家远洋渔业工程技术研究中心， 上海 201306； 3大洋渔业资源可持续开发省部共建教育部重点实验室， 上海 201306； 4农业部大洋渔业开发重点实验室， 上海 201306；5农业部大洋渔业资源环境科学观测实验站， 上海 201306)
  • 出版日期:2021-08-10 发布日期:2021-08-17

Fisheries biology characteristics of Berryteuthis magister shevtsovi in the Sea of Japan.

WANG Hong-hao1, HE Tao1, LU Hua-jie1,2,3,4,5*, CHEN Zi-yue1, NING Xin1, LIU Kai1, CHEN Xin-jun1,2,3,4,5     

  1. (1College of Marine Sciences of Shanghai Ocean University Shanghai, Shanghai 201306, China; 2National Distantwater Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai 201306, China; 3The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Shanghai Ocean University, Ministry of Education, Shanghai 201306, China; 4Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture, Shanghai 201306, China; 5Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture, Shanghai 201306, China).
  • Online:2021-08-10 Published:2021-08-17

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摘要： 根据2018年12月在日本海采集的舍氏贝乌贼(Berryteuthis magister shevtsovi)样本，对其形态特征、胴长与体质量、性腺成熟度、摄食强度与肥满度等生物学特征进行了研究。结果表明：舍氏贝乌贼的优势组胴长和体质量分别为100～120 mm和30～70 g，鳍长与鳍宽的平均值为(58.36±5.81) mm和(90.44±6.89) mm；在体质量与胴长的关系中，条件因子a为0.0007，异速生长因子b为2.3934，胴长的增长速度快于其体质量的增加；性腺成熟度以I和II期个体为主；胴长小于110 mm时，摄食强度多以1～2级为主，胴长大于110 mm时，摄食强度为3～4级的个体占比上升；随着胴长的增加，个体肥满度呈现下降的趋势。研究结果可为后续研究其种群鉴定、生活史、资源开发和利用等提供参考。

关键词: 舍氏贝乌贼, 渔业生物学, 胴长, 体质量, 胃饱满度, 性腺成熟度  

Abstract: Based on the samples of Berryteuthis magister shevtsovi collected in the Sea of Japan in December 2018, fishery biological characteristics were examined, including morphology, mantle length, body weight, sex maturity, stomach stage and fatness index. The result showed that the mantle length and body weight of B. magister shevtsovi in dominant group were 100-120 mm and 30-70 g respectively, while the mean values of fin length and width were (58.36±5.81) mm and (90.44±6.89) mm, respectively. For the relationship between body weight and mantle length, condition factor a and allometric growth factor b were 0.0007 and 2.3934, respectively, with mantle length growing faster than body weight. The maturation of gonads was dominated by individuals from stage I and II. When the mantle length was lower than 110 mm, the stomach stage was mostly at grade 1-2. The proportion of individuals with stomach stage at grade 3-4 increased when the mantle length was higher than 110 mm. The fatness index decreased with increasing mantle length. Our results provide reference for the future research on population identification, life history, development and utilization of B. magister shevtsovi.

Key words: Berryteuthis magister shevtsovi, fishery biology, mantle length, body weight, stomach stage, sex maturity.  

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