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Assessment of Trichiurus haumela stocks in the Beibu Gulf based on length-based Bayesian biomass estimation method
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Man Zhang1, 2, Xuehui Wang2, *, Miaodi Wang1, 2, Feiyan Du2, Dianrong Sun2, Lianggen Wang2, Yuezhong Wang2, Liuxiong Xu1, Yongsong Qiu2
Haiyang Xuebao | 2022, 44(1) : 11 - 21
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Haiyang Xuebao | 2022, 44(1): 11-21
• Article •
Assessment of Trichiurus haumela stocks in the Beibu Gulf based on length-based Bayesian biomass estimation method
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Man Zhang1, 2, Xuehui Wang2, *, Miaodi Wang1, 2, Feiyan Du2, Dianrong Sun2, Lianggen Wang2, Yuezhong Wang2, Liuxiong Xu1, Yongsong Qiu2
Affiliations
  • 1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
  • 2. Guangdong Provincial Key Laboratory of Fishery Ecology and Environment/Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
Published: 2022-01-15 doi: 10.12284/hyxb2022002
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Trichiurus haumela is one of the major commercial fish populations in the Beibu Gulf of the northwestern South China Sea. It is of great significance to estimate population parameters and assess the stock status of T. haumela for the fishery management in the Beibu Gulf. Based on the biological data of T. haumela collected in the Beibu Gulf from 2006 to 2016, the asymptotic length (Linf), the optimal length-at-first-capture (Lc_opt), relative mortality (M/k and F/k), exploitation rate (E), and relative biomass (B/B0) are estimated using the length-based Bayesian biomass estimation method (LBB). The results show that the Linf is 44.4 cm, the mean of Lc_opt is 28.5 cm, the mean of M/k and F/k are 1.32 and 2.76, the F/M is 2.20 and the E and B/B0 are 0.67 and 0.16, respectively. The anal length of the first gonadal maturation (L50%) is 28.63 cm fitted by Logistic models. The results show that the current stock of T. haumela in the Beibu Gulf is over-exploited, the extant biomass is relatively low, the length-frequency tendes to simplification and miniaturization.

data-limited  /  length-based Bayesian biomass estimation method  /  stock status  /  population parameters  /  Trichiurus haumela  /  Beibu Gulf
Man Zhang, Xuehui Wang, Miaodi Wang, Feiyan Du, Dianrong Sun, Lianggen Wang, Yuezhong Wang, Liuxiong Xu, Yongsong Qiu. Assessment of Trichiurus haumela stocks in the Beibu Gulf based on length-based Bayesian biomass estimation method[J]. Haiyang Xuebao, 2022 , 44 (1) : 11 -21 . DOI: 10.12284/hyxb2022002
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Article Info
doi: 10.12284/hyxb2022002
  • Receive Date：2021-06-01
  • Online Date：2026-02-01
  • Published：2022-01-15
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  • Received：2021-06-01
  • Revised：2021-06-30
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Affiliations
    1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
    2. Guangdong Provincial Key Laboratory of Fishery Ecology and Environment/Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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