Peaked abundance of Calanus sinicus earlier shifted in the Changjiang River (Yangtze River) Estuary: a comparable study between 1959, 2002 and 2005 |
| |
Authors: | XU Zhaoli MA Zengling WU Yumei |
| |
Affiliation: | Key and Open Laboratory of Marine and Estuary Fisheries(Ministry of Agriculture), East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Science, Shanghai 200090, China |
| |
Abstract: | The sea surface temperature (SST) of the East China Sea (ECS) increased in the past decades, which may have a great impact on the ecosystem of the ECS, including the changes in plankton-population structure. In this paper, the changes in peaked abundance of Calanus sinicus in the Changjiang River (Yangtze River) Estuary were compared between 1959 and 2002, based on the data collected from the seasonally oceanographic cruises and those performed in spring of 2005. It was much higher in spring compared with that in other seasons both in 1959 and 2002. Furthermore, in spring 2005, the time for occurrence and decrease of the peaked C. sinicus abundance advanced about one month, accompanying the increase in the sea surface water temperature (SST). It peaked in June and decreased in July in 1959, however, in 2005, it peaked in May and attenuated sharply in early June. The earlier decrease of peaked C. sinicus abundance may further deteriorate the ecosystem in the Changjiang River Estuary and north nearshore of the ECS. |
| |
Keywords: | Calanus sinicus East China Sea (ECS) temperature Changjiang River (Yangtze River) Estuary zooplankton |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《海洋学报(英文版)》下载全文 |
|