The response of zooplankton abundance in saline meromictic Lake Shira to a change in circulation regime

作     者：Yuri V.BARKHATOV Alexander P.TOLOMEEV Anton V.DROBOTOV Egor S.ZADEREEV Yuri V.BARKHATOV;Alexander P.TOLOMEEV;Anton V.DROBOTOV;Egor S.ZADEREEV

作者机构：Krasnoyarsk Research CenterInstitute of BiophysicsSiberian Branch of Russian Academy of SciencesAkademgorodokKrasnoyarsk 660036Russia Institute of Fundamental Biology and BiotechnologySiberian Federal UniversityKrasnoyarsk 660041Russia 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2023年第41卷第4期

页      面：1321-1330页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：Supported by the RFBR and Krasnoyarsk Krai Government and the Krasnoyarsk Regional Fund of Science(No.19-44-240002) supported by the State Assignment of the Ministry of Science and Higher Education of the RF(No.0287-2021-0019) 

主　　题：meromictic lake zooplankton copepods rotifers meromixis breakdown 

摘      要：The long-term data(1996-2021)on the summer abundances of the dominant zooplankton species(copepod Arctodiaptomus salinus(Daday,1885),rotifers Brachionus plicatilis(Müller,1786)and Hexarthra sp.)in saline Lake Shira were used to analyze the response of zooplankton to air temperature and a change in the circulation regime of the lake:breakdown and reestablishment of *** groups of zooplankton responded to prolonged summer elevated temperatures by increasing their *** the breakdown of the stable stratification of Lake Shira(2015-2016),zooplankton abundance increased on average by a factor of two and amounted to 9×10^(5)inds./m^(2)in the water column for *** increase coincided with similar responses of other components of the lake’s mixolimnion ecosystem,whose biomasses increased approximately two-fold during that *** the reestablishment of the meromixis,the abundance of zooplankton decreased to previous ***,the abundance of zooplankton is largely determined by weather(the effect of temperature)and ecological factors(mixing regime).