Characteristics of zooplankton community in the Qinzhou Bay during flood and dry seasons

Lan Wenlu; Li Tianshen; Liu Mengling; Pang Bijian; Liu Xinming

doi:10.3969/j.issn.0253-4193.2015.04.012

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Lan Wenlu, Li Tianshen, Liu Mengling, Pang Bijian, Liu Xinming. Characteristics of zooplankton community in the Qinzhou Bay during flood and dry seasons[J]. Haiyang Xuebao, 2015, 37(4): 124-133. doi: 10.3969/j.issn.0253-4193.2015.04.012

Citation:

Lan Wenlu, Li Tianshen, Liu Mengling, Pang Bijian, Liu Xinming. Characteristics of zooplankton community in the Qinzhou Bay during flood and dry seasons[J]. Haiyang Xuebao, 2015, 37(4): 124-133. doi: 10.3969/j.issn.0253-4193.2015.04.012

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Characteristics of zooplankton community in the Qinzhou Bay during flood and dry seasons

doi: 10.3969/j.issn.0253-4193.2015.04.012

Marine Environmental Monitoring Center of Guangxi, Beihai 536000, China

Received Date: 2014-07-23
Rev Recd Date: 2014-12-31

Abstract

Abstract

The characteristics of species composition,quantitative distribution and seasonal variation of zooplankton in the Qinzhou Bay were investigated in flood season in 2011(July) and dry season in 2012(March). Species quantity of zooplankton were 27 and 44 with dominant species(Y >0.02) of 3 and 4 in flood and dry seasons,respectively. The dominant species were Acartia (Odontacartia) pacifica,Pleurobrachia globosa and Lucifer intermedius in flood season,while Calanus sinicus,Pleurobrachia globosa,Oikopleura (Vexillaria) dioica and Centropages tenuiremis in dry season. The abundance of zooplankton ranged from 4.01-133.64 ind/m³ with an average of 50.9 ind/m³ in flood season,while 1.2-1 725.0 ind/m³ with an average of 272.2 ind/m³ in dry season. However,biomass of zooplankton which included fish eggs and larvae ranged from 1.7-179.2 mg/m³ with an average of 44.0 mg/m³ in flood season,while 3.1-3 530.0 mg/m³ with an average of 474.9 mg/m³ in dry season. Qinzhou Bay was in an characterized,rapid change estuary environment,its marine system,which affected by rivers runoff,Beibu Gulf coastal waters etc.,was complex and it's community structure of zooplankton presented complex diversity. Estuarine group [such as Acartia (Odontacartia) pacifica] and warm water nearshore group(such as Tortanus forcipatus) were the main ecological groups of zooplankton community structure. Both in the species number and abundance of zooplankton,Copepoda were the predominant species. Temporal and spatial distribution of species number,abundance and biomass of zooplankton were higher in outer bay than that in inner bay,as well as higher in dry season than that in flood season. The seasonal variation and spatial distribution characteristics of zooplankton in the Qinzhou Bay mainly had a close relationship with the phytoplankton biomass,shellfish culture,stability of the environment and human disturbance.
- zooplankton,
- community,
- flood seasons,
- dry seasons,
- Qinzhou Bay

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