| Wu Qiang,Guan Lisha,Li Zhongyi,Shan Xiujuan,Jin Xianshi. 2019. Decadal variations in the community status of economically important invertebrates in the Bohai Sea. Acta Oceanologica Sinica, 38(10):60－66 |
| Decadal variations in the community status of economically important invertebrates in the Bohai Sea |
| 渤海经济无脊椎动物群落的年代变动 |
| Received:July 19, 2018 |
| DOI：10.1007/s13131-019-1488-1 |
| Key words:decadal variations|community structure|trophic level|economically important invertebrates|Bohai Sea |
| 中文关键词: 年代变动|群落结构|营养级水平|经济无脊椎动物|渤海 |
| 基金项目:The National Key Research and Development Program of China under contract No. 2018YFD0900902; the National Key Basic Research Development Program (973 Program) of China under contract No. 2015CB453303; the Special Funds for Taishan Scholar Project of Shandong Province; the AoShan Talents Cultivation Program supported by Qingdao National Laboratory for Marine Science and Technology under contract No. 2017ASTCP-ES07. |
| Author Name | Affiliation | E-mail | | Wu Qiang | Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture/Shandong Provincial Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Academy of Fishery Sciences, Qingdao 266071, China
Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Guan Lisha | Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture/Shandong Provincial Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Academy of Fishery Sciences, Qingdao 266071, China
Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Li Zhongyi | Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture/Shandong Provincial Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Academy of Fishery Sciences, Qingdao 266071, China
Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Shan Xiujuan | Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture/Shandong Provincial Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Academy of Fishery Sciences, Qingdao 266071, China
Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | | | Jin Xianshi | Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture/Shandong Provincial Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Academy of Fishery Sciences, Qingdao 266071, China
Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China | Jin@ysfri.ac.cn |
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| Abstract: |
| With the decline of fish stocks, the proportions of economically important invertebrates like crustaceans and cephalopods have increased in the Bohai Sea. The community structure and trophic level of economically important invertebrates were analyzed using the bottom trawl survey data collected by the Yellow Sea Fisheries Research Institute in the Bohai Sea in May and August of 1958–1959, 1982, 1992–1993, 2004, 2009 and 2015. A total of 37 species of economically important invertebrates, belonging to 5 orders, 24 families, were captured. The biomass densities of economically important invertebrates in the Bohai Sea displayed an overall downward trend from 1982 to 2015. Oratosquilla oratoria and Loligo spp. were the most dominant species in the past 30 years, the biomass proportion of O. oratoria increased gradually in both May and August from 1982 to 2015. Moreover, biodiversity indices of economically important invertebrates in the Bohai Sea appeared to decline from 1982 to 2004 and then increased in 2015. Similarly, the mean trophic level of economically important invertebrates declined from 1982 to 2004 and increased slightly in 2015. Overall, although the proportions of invertebrates have increased, the biomass densities in the Bohai Sea have displayed an overall downward trend from 1982 to 2015. The increases in the biodiversity and trophic level of economically important invertebrates after the 2000s, possibly benefit from stock enhancement projects implemented by governments at different levels and national fishery management measures such as the "double-control" of the total number and engine power of fishing vessels and summer moratorium of fishing. |
| 中文摘要: |
| 随着鱼类资源的下降，渤海中经济无脊椎动物（如甲壳类和头足类）的在渤海渔业的比重不断增高。本研究利用黄海水产研究所于1958-1959年、1982年、1992-1993年、2004年、2009年和2015年的5月和8月在渤海获得的底拖网调查数据，分析了渤海经济无脊椎动物的群落结构和营养水平。捕获经济无脊椎动物共37种，隶属于5个目、24个科。从1982年到2015年，渤海经济无脊椎动物的生物量密度总体呈下降趋势。口虾蛄和枪乌贼在过去的30年一直是生物量优势物种，从1982年到2015年，无论5月还是8月，口虾蛄的生物量比例逐渐增加。从1982年至2004年，渤海经济无脊椎动物的生物多样性指数不断下降，然而在2015年有所提升。渤海经济无脊椎动物的平均营养水平在1982年至2004年期间呈下降趋势，并在2015年略有上升。总体而言，尽管渤海经济无脊椎动物的生物量比例有所增加，但其生物量密度总体呈下降趋势。自2000年以来，经济无脊椎动物的生物多样性和营养水平不断增加，这可能得益于各级政府实施的增殖放流项目和一系列的国家渔业管理措施，例如控制渔船数量和总马力数的"双控"以及伏季休渔制度等。 |
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