气候变化对长江口鱼类资源密度分布的重塑作用
发布时间：2018-07-16 13:33
【摘要】：本研究以2012-2013年长江口鱼类资源密度分布为基础,通过动态生物气候分室模型(DBEM)预估了不同气候变化情景下(IPCC,RCP2.6、RCP6.0和RCP8.5)长江口鱼类资源密度增量分布的变化。在RCP2.6、RCP6.0和RCPS.5这3种气候变化情景下,鱼类资源密度增量、底层鱼类资源密度增量随着时间推移均呈递增趋势,且递增程度和增量重心分布范围随着温室气体排放的增加而扩大(RCP8.5RCP6.0RCP2.6)。鱼类资源密度增量重心主要分布在长江口崇明岛沿岸水域,长江口外侧水域资源密度增量相对较低,并且资源密度增量重心有向南迁移的趋势。
[Abstract]:Based on the density distribution of fish resources in the Yangtze Estuary from 2012 to 2013, the paper estimated the increment distribution of fish resources density in the Yangtze Estuary under different climate change scenarios (IPCCU RCP2.6 RCP6.0 and RCP8.5) by dynamic bioclimatic compartment model (DBEM). Under the climate change scenarios of RCP2.6 / RCP6.0 and RCPS.5, the increase of fish resource density and the increment of bottom fish resource density showed an increasing trend with the passage of time, and the increasing degree and increasing center of gravity distribution range expanded with the increase of greenhouse gas emission (RCP8.5 RCP6.0 RCP2.6). The density increment center of fish resources is mainly distributed in the coastal waters of Chongming Island in the Changjiang Estuary, and the increment of resource density in the outer waters of the Yangtze River Estuary is relatively low, and the center of gravity of the increment of the density of fish resources tends to migrate southward.
【作者单位】： 农业部海洋渔业可持续发展重点实验室山东省渔业资源与生态环境重点实验室中国水产科学研究院黄海水产研究所;青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室;中国科学院海洋研究所;
【基金】：鳌山科技创新计划(2015ASKJ02-05) 农业部财政项目“黄渤海渔业资源调查” 山东省泰山学者专项基金共同资助
【分类号】：S931.1
[Abstract]:Based on the density distribution of fish resources in the Yangtze Estuary from 2012 to 2013, the paper estimated the increment distribution of fish resources density in the Yangtze Estuary under different climate change scenarios (IPCCU RCP2.6 RCP6.0 and RCP8.5) by dynamic bioclimatic compartment model (DBEM). Under the climate change scenarios of RCP2.6 / RCP6.0 and RCPS.5, the increase of fish resource density and the increment of bottom fish resource density showed an increasing trend with the passage of time, and the increasing degree and increasing center of gravity distribution range expanded with the increase of greenhouse gas emission (RCP8.5 RCP6.0 RCP2.6). The density increment center of fish resources is mainly distributed in the coastal waters of Chongming Island in the Changjiang Estuary, and the increment of resource density in the outer waters of the Yangtze River Estuary is relatively low, and the center of gravity of the increment of the density of fish resources tends to migrate southward.
【作者单位】： 农业部海洋渔业可持续发展重点实验室山东省渔业资源与生态环境重点实验室中国水产科学研究院黄海水产研究所;青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室;中国科学院海洋研究所;
【基金】：鳌山科技创新计划(2015ASKJ02-05) 农业部财政项目“黄渤海渔业资源调查” 山东省泰山学者专项基金共同资助
【分类号】：S931.1
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