外伶仃海洋牧场附近海域渔业资源季节动态变化分析

冯雪; 戴小杰; 范江涛; 陈丕茂

doi:10.12131/20220308

外伶仃海洋牧场附近海域渔业资源季节动态变化分析

doi: 10.12131/20220308

冯雪^{1, 2, 3,},
戴小杰¹,
范江涛²,
陈丕茂^{2, 3, ,}

1.
上海海洋大学海洋科学学院，上海 201306
2.
中国水产科学研究院南海水产研究所，广东广州 510300
3.
农业农村部南海渔业资源环境科学观测实验站/农业农村部海洋牧场重点实验室，广东广州 510300

基金项目: 广东省重点领域研发计划项目 (2020B1111030002)；中国水产科学研究院基本科研业务费专项资金 (2023TD06)

详细信息

作者简介:
冯雪：冯　雪 (1987—)，女，助理研究员，博士研究生，研究方向为海洋牧场及生态修复。E-mail: fengxue@scsfri.ac.cn

通讯作者:
陈丕茂 (1969—)，男，研究员，研究方向为海洋牧场及渔业资源保护与利用。E-mail: chenpm@scsfri.ac.cn

中图分类号: S 931.4
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出版历程
- 收稿日期: 2022-12-02
- 修回日期: 2023-05-15
- 录用日期: 2023-05-25
- 网络出版日期: 2023-05-29
- 刊出日期: 2023-10-05

Seasonal variation of fishery resources in Wailingding marine ranching and adjacent waters

FENG Xue^{1, 2, 3
,},
DAI Xiaojie¹,
FAN Jiangtao²,
CHEN Pimao^{2, 3
, ,}

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
2.
South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
3.
Scientific Observing and Experimental Station of South China Sea Fishery Resources and Environments, Ministry of Agriculture and Rural Affairs/Key Laboratory of Marine Ranching, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, China

摘要

摘要: 珠江口外伶仃海域是重要的传统渔场和渔业资源洄游通道，近年来在人类活动和气候变化的双重压力下生境发生了巨大变化。为深入了解渔业资源的季节变动规律，根据珠江口外伶仃海洋牧场附近海域2020和2021年的调查数据，采用空间分析方法，探究了不同渔获种类的季节动态变化和特征分布，并对渔场重心进行分析归纳。结果表明，总体资源密度春季高于秋季，呈斑点状分布，春季渔场重心分布集中于南部海域，秋季渔场重心向西北方向移动；鱼类资源密度分布与总资源密度相似，春季鱼类资源重心位于西南方向，秋季向西北方向移动；蟹类春季资源密度整体分布均匀，秋季资源密度有所提高，高密度海域有所增加，呈片状分布，资源重心由西部向东北方向移动；虾类春季资源密度低于秋季，资源重心向东北方向移动；虾蛄类整体资源密度较低，资源重心春季位于西部海域，秋季向东北方向移动；头足类春季资源密度高于秋季，均呈片状分布，资源重心从东向西移动。
- 渔业资源 /
- 季节变动 /
- 渔场重心 /
- 空间分析方法 /
- 外伶仃海域
Abstract: Wailingding waters of the Pearl River Estuary have always been an important traditional fishing ground and migration channel for fishery resources. In recent years, great changes have taken place in habitats under the dual pressure of human activities and climate change. In order to deeply understand the seasonal variation of fishery resources, based on the survey data of the marine ranching in Wailingding waters in 2020 and 2021, we applied the spatial analysis method to explore the seasonal dynamics and characteristics distribution of different catch species, and summarized the fishing ground center of gravity. The results show that the total resource density in spring was higher than that in autumn, distributing in a patchy pattern. In spring, the center of gravity of the fishing ground were concentrated in the southern waters, but moved northwestward in autumn. The density distribution of fish resources was similar to that of total resources. In spring, the center of gravity of fish resources was located in the southwest direction, but moved northwestward in autumn. The resource density of crabs in spring was relatively uniform and increased in autumn, and high-density sea areas increased, distributing in a flaky pattern, and the center of gravity of resources moved from west to northeast. The resource density of shrimps in spring was lower than that in autumn, and the center of gravity of resources moved northeastward. The resource density of mantis shrimps was low and the center of gravity of resources was located in the western sea area in spring, but moved northeastward in autumn. The resource density of cephalopoda in spring was higher than that in autumn, distributing in a flaky pattern, and the center of gravity of resources moved from east to west.
- Fishery resources /
- Seasonal variation /
- Gravity of fishing ground /
- Spatial analysis method /
- Wailingding waters

HTML全文

图 1 研究区域示意图

Figure 1. Diagram of survey area

下载: 全尺寸图片幻灯片

图 2 春季渔业资源各类群分布

Figure 2. Distribution of various groups of fishery resources in spring

下载: 全尺寸图片幻灯片

图 3 秋季渔业资源各类群分布

Figure 3. Distribution of various groups of fishery resources in autumn

下载: 全尺寸图片幻灯片

图 4 春、秋季不同类群分布特征

Figure 4. Distribution characteristics of different groups in spring and autumn

下载: 全尺寸图片幻灯片

图 5 渔业资源各类群渔场重心变动

Figure 5. Changes in center of gravity of various groups of fishery resources

下载: 全尺寸图片幻灯片

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