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Responding of zooplankton to environmental factor changes in the Changjiang River estuarine regions in spring-summer from 2016 to 2020

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Journal of Oceanology and Limnology 2024年第2期42卷 544-559页

作者： Jieqing YANG Dongrong ZHANG Yuange CHEN Longling OUYANG Yangyang YANG Jin ZHOU Yunrong SHI East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesKey Laboratory of East China Sea Fishery Resources ExploitationMinistry of Agriculture and Rural AffairsShanghai 200090China Key Laboratory of Engineering Oceanography Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China

The estuarine areas are under frequent influence from freshwater intrusion and ocean currents,in which zooplankton species are diversified and variable as they are sensitive to physio-chemical variations in ***,understanding the relationships between zooplankton and environmental factors help us know the water *** achieve co-existence with species in similar ecological group or habit,they could inevitably alter themselves to fit the ecology and adjust the function according to the competitive exclusion in ecological ***,information of the co-existence of dominant species in the Changjiang(Yangtze)River estuary(CRE)and adjacent waters remains *** explored the relationships between dominant zooplankton and environmental factors in the study region in spring-summer from 2016 to 2020,involving particularly the composition of dominant species,ecological groups,their relationships with environmental factors,and co-existence of important species,using the non-multidimensional scale analysis(nMDS)method and redundancy *** show that Labidocera euchaeta and Tortanus vermiculus were dominant species in the study *** turnover rate of dominant zooplankton was greater(>50%)in spring while the species number was higher in *** dominant species were estuarine,offshore,and eurytopic based on the adaptation to *** spring,the ecological groups were dominated by estuarine species,while in summer by estuarine and offshore *** addition,the nMDS showed that the dominant species in the same ecological group were more dispersed and not prominently clustered;the dominant species were staggered among different ecological *** temperature,salinity,pH,dissolved oxygen,and chlorophyll a were the main environmental factors on the distribution of the dominant species in spring,while in summer were dissolved oxygen,temperature,salinity,and *** domination of medusae of Nemopsis bachei and Pleurobrachia globosa in zo

关键词： Changjiang River estuary(CRE) zooplankton dominant species ecological group environmental factor co-existence

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Variations in the Volatile Organic Compound Emission Potential of Plant Functional groups in the Temperate Grassland Vegetation of Inner Mongolia, China

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Journal of Integrative Plant Biology 2005年第1期47卷 13-19页

作者： Nian-PengHE Xing-GuoHAN Qing-MinPAN LaboratoryofQuantitativeVegetationEcology InstituteofBotanytheChineseAcademyofSciencesBeijing100093China

Abstract: The biogenic volatile organic compounds (VOC) emitted by the vegetation of a terrestrial ecosystem play a key role in both regional air quality and tropospheric chemistry. To describe the general emission properties of VOC of different plant functional groups (PFG) in a typical temperate grassland in Inner Mongolia, China, we randomly selected 175 plant species and measured the quantities of isoprene and monoterpene in situ. Results showed that most plants had low VOC emission potential at the species level, especially for some dominant plants, such as Leymus chinensis Tzvel., Stipa grandis Smirn., and Agropyron cristatum Gaertn. At the PFG level, the lowest VOC emission potential was found for perennial rhizome grasses, a major PFG in a typical temperate grassland ecosystem. The effects of overgrazing and subsequent vegetation succession on the emission of VOC by different plant life form functional groups (PLFG) were also discussed.

关键词： biogenic emission ecological group grassland vegetation isoprene monoterpene plant functional groups (PFG) volatile organic compounds (VOC)

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The distribution of Chaetognatha in the western central Pacific　

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Acta Oceanologica Sinica 1996年第2期15卷 251-259页

作者： Dai Yanyu(Third institute of Oceanography, State Oceanic Administration, Xiamen 361005, China) Third Institute of Oceanography State Oceanic Administration Xiamen 361005 China

The recorded 15 species of Chaetognatha are studied in the zooplanktonic samples collected in the waters of the western central Pacific (0°～5°N, 160°～165°E) within January and February, and within April and May in 1979. A primary analysis is conducted on the relations of Chaetognatha species composition and numerical distribution with their environmental conditions in the waters by taking into account the field hydrological data.

关键词： Central Pacific ecological group distribution environmental factor

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Correlation between the avian community and habitat at different water levels during spring migration in Zhalong National Nature Reserve,China

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Journal of Forestry Research 2012年第4期23卷 661-666页

作者： ZOU Hong-fei SUN Meng WU Qing-Ming MA Jian-Zhang College of Wildlife Resource Northeast Forestry UniversityHarbin 150040P.R.China

Zhalong National Nature Reserve （Zhalong） is an important stopover for migratory birds. In recent decades, Zhalong has become the focus of researchers and public discussion in relation to irrigation. We studied relationships between birds and habitats at different water levels to guide development of more effective habitat management measures. We used line transects to survey bird numbers and distribution during April-May from 2005-2009 at Zhalong, and used cluster analysis and Chi-Square tests to analyze data. We recorded 139 bird species of 39 families and 13 orders during spring migration, including Anseriformes, Charadriiformes, Ciconiiformes, Columbiformes, Coraciiformes, Cucu- liformes, Falconiformes, Galliformes, Gruiformes, Passeriformes, Pici- formes, Podicipediformes, Strigiformes. Dominant vegetation and geo- graphic region were the main influence factors of avian distribution. Different ecological groups preferred different water levels （p〈0.01） and different habitat types （p〈0.01）. Grallatores, Natatores and Passeres were the main ecological groups in different wetland habitats, and reed marsh and lake are the main habitats for management. Grallatores preferred reed marsh and lake with water levels 〉30 cm and 5-15 cm. Natatores preferred lakes with deep water （〉30 cm）. Passeres preferred open forest and reed marsh with no surface water. Different avian ecological groups occupied specific habitats depending on water level and we recorded some overlaps in bird distribution.

关键词： avian community ecological group spring migrationseason water level Zhalong reserve

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ecological　characteristics　of　Ostracoda　in　the　South　Huanghai　Sea　and　East　China　Sea

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Acta Oceanologica Sinica 1994年第3期13卷 401-412页

作者： Chen Ruixiang and Lin Jinghong(Third Institute of Oceanography,State Oceanic Administration, Xiamen 361005, China)

This report is based on the monthly data obtained during the annual comprehensive survey in a widearea between 28°-34°N, 120°30'-127°E from December 1977 to November 1978. The species diversity, quantitative distribution and seasonal patterns of Ostracoda and its relationship to the Taiwan Warm Current, KuroshioWarm Current, Huanghai Sea cold water mass, Huanghai sea Warm Current, Changeing River runoff and coastalcurrents are discussed.

关键词： Ostracoda ecological group Taiwan Warm Current Kuroshio

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