南沙美济礁海域隆背笛鲷繁殖和食性的初步研究

王腾; 刘永; 李纯然; 李纯厚; 唐广隆; 肖雅元; 林琳; 吴鹏

doi:10.12131/20210379

南沙美济礁海域隆背笛鲷繁殖和食性的初步研究

doi: 10.12131/20210379

王腾^{1, 2,},
刘永^{1, 2},
李纯然¹,
李纯厚^{1, 2, ,},
唐广隆¹,
肖雅元¹,
林琳¹,
吴鹏¹

1.
中国水产科学研究院南海水产研究所/农业农村部南海渔业资源开发利用重点实验室/广东珠江口生态系统野外科学观测研究站/广东省渔业生态环境重点实验室，广东广州 510300
2.
南方海洋科学与工程广东省实验室 (广州)，广东广州 511458

基金项目: 国家重点研发计划项目 (2018YFD0900803)；南方海洋科学与工程广东省实验室 (广州) 人才团队引进重大专项 (GML2019ZD0605)；农业农村部财政专项 (NFZX2021)；中国水产科学研究院基本科研业务费专项资金 (2020TD16)；中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项资金资助 (2021SD04, 2019TS28)；广东省基础与应用基础研究重大项目 (2019B030302004-05)

详细信息

作者简介:
王腾：王　腾 (1986—)，男，助理研究员，博士，研究方向为海洋鱼类保护生物学。E-mail: wt3074589@163.com

通讯作者:
李纯厚 (1963—)，男，研究员，研究方向为水生生物学。E-mail: chunhou@scsfri.ac.cn

中图分类号: S 932
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- 文章访问数: 309
- HTML全文浏览量: 76
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- 被引次数: 0
出版历程
- 收稿日期: 2021-12-24
- 修回日期: 2022-02-23
- 录用日期: 2022-03-30
- 网络出版日期: 2022-04-12
- 刊出日期: 2022-12-05

A preliminary study on reproduction and feeding habits of Lutjanus gibbus from Meiji Reef of Nansha

WANG Teng^{1, 2
,},
LIU Yong^{1, 2},
LI Chunran¹,
LI Chunhou^{1, 2
, ,},
TANG Guanglong¹,
XIAO Yayuan¹,
LIN Lin¹,
WU Peng¹

1.
South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs/Observation and Research Station of Pearl River Estuary Ecosystem, Guangdong Province/Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou 510300, China
2.
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China

摘要

摘要: 隆背笛鲷 (Lutjanus gibbus) 是一种肉质鲜美且经济价值高的珊瑚礁鱼类，其产卵集聚容易造成过度捕捞。以2020年7月在美济礁海域潜水捕捞采集的67尾隆背笛鲷样本为研究对象，研究其性比、性成熟体长、卵径特征、繁殖力和食性等生物学特征，以期为这一珊瑚礁经济鱼类提供保护和管理的基础生物学数据。结果显示，隆背笛鲷雌雄比为2∶1；雌、雄性的50%性成熟体长 (L₅₀) 分别为204.757和201.623 mm；IV期性腺卵径为0.176~0.419 mm (平均0.296 mm)；卵径频率分布为单峰型。隆背笛鲷的繁殖力为51 858~276 205 粒 (平均139 145 粒)，其繁殖力与体长、体质量成显著的幂函数关系。美济礁隆背笛鲷可摄食蟹、鱼、螺、贝和虾。稳定同位素研究显示隆背笛鲷的平均营养级为3.33，其食性随个体发育转变明显，如生态位变窄和营养级变高等。
- 隆背笛鲷 /
- 繁殖力 /
- 稳定同位素 /
- 营养生态位 /
- 营养级 /
- 珊瑚礁
Abstract: Lutjanus gibbus, a kind of coral reef fish with delicious meat and high economic value, whose spawning aggregation can easily lead to overfishing. Based on 67 individuals of L. gibbus collected by diving fishing in the waters of Meiji Reef in July 2020, we investigated its basic biological characteristics, including sex ratio, sexual maturity body length, egg diameter characteristics, fecundity and feeding habits, in order to provide basic biological data for the protection and management of L. gibbus. The results show that the ratio of female to male of L. gibbus was 2:1; the 50% sexually mature body lengths of males and females were 204.757 and 201.623 mm, respectively; the egg diameter of Stage IV gonadal was 0.176–0.419 mm with an average of 0.296 mm; the frequency distribution of egg diameter was unimodal. The fecundity of L. gibbus was 51 858–276 205 eggs with an average of 139 145 eggs. Its fecundity had a significant power function relationship with body length and body mass. The preys of L. gibbus from Meiji Reef were crabs, fish, snails, shellfish and shrimps. The stable isotope study shows that the average trophic level of L. gibbus was 3.33, and its feeding habits changed significantly with individual development (The niche width was narrower and the trophic level was higher).
- Lutjanus gibbus /
- Fecundity /
- Stable isotope /
- Nutritional niche /
- Trophic level /
- Coral reef

HTML全文

图 1 美济礁隆背笛鲷体长分布

Figure 1. Distribution of body length of L. gibbus from Meiji Reef

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图 2 美济礁隆背笛鲷个体性成熟比例的逻辑斯蒂曲线

Figure 2. Logistic curve of sexual maturity percentage of L. gibbus from Meiji Reef

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图 3 美济礁隆背笛鲷的卵径分布频率分布

注：a. 体长为 230 mm，体质量为 366.91 g；b. 体长为 220 mm，体质量为 314.50 g。

Figure 3. Oocyte size-frequency distribution of L. gibbus from Meiji Reef

Note: a. Body length: 230 mm, and body mass: 366.91 g; b. Body length: 220 mm, and body mass: 314.50 g.

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图 4 美济礁隆背笛鲷繁殖力与体长和体质量的相关性

Figure 4. Relationships of fecundity-body length and fecundity-body mass of L. gibbus from Meiji Reef

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图 5 美济礁隆背笛鲷的体长与δ¹³ C、δ¹⁵ N的相关性

Figure 5. Relationships of body length-δ¹³ C and body length-δ¹⁵ N of L. gibbus from Meiji Reef

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表 1 美济礁海域隆背笛鲷体长、体质量特征

Table 1. Body length and body mass of L. gibbus from Meiji Reef

群体 Group	数量 Number	体长范围 Body length range/mm	平均体长 Average body length/mm	体质量范围 Body mass range/g	平均体质量 Average body mass/g
雌性 Female	30	140~250	215.63	72.51~411.79	303.92
雄性 Male	15	160~270	203.33	120.99~665.43	282.87
雌雄不辨 Unsex	22	115~240	170.55	51.41~465.58	174.46
总体 Total	67	115~270	198.08	51.41~665.43	256.7

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表 2 美济礁隆背笛鲷的δ¹³C、δ¹⁵N和营养生态位指标

Table 2. δ¹³C, δ¹⁵N values and trophic niche metrics for L. gibbus from Meiji Reef

群体 Group	数量 Number	碳稳定同位素 δ¹³C/‰	氮稳定同位素δ¹⁵N/‰	δ¹³C范围 CR_b/‰	δ¹⁵N范围 NR_b/‰	凸多边形面积TA/‰²	校正标准椭圆SEAC/‰²
未性成熟 Immature	8	−14.27	8.24	2.49	1.15	2.79	2.30
性成熟 Mature	7	−13.94	8.68	2.91	1.30	1.82	1.61
总体 Total	15	−14.11	8.44	3.41	2.14	4.51	2.17

下载: 导出CSV

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