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What physical factors are affecting copepod populations? 


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Physical factors affecting copepod populations include temperature, salinity, hydrographic properties, water thermal stratification, and water column mixing. Temperature and salinity have a close relationship with copepod abundance, with rising water temperature and salinity leading to increased copepod abundance . Water thermal stratification, established in summer, supports copepod development, and copepod abundance increases gradually with rising water temperature and salinity during this period . Water column mixing, on the other hand, leads to a decrease in copepod abundance . Additionally, phytoplankton density, total suspended solids (TSS), and dissolved oxygen (DO) also influence copepod populations, with different copepod groups responding differently to these factors . The density of copepods is also influenced by inter-annual variability in biophysical forcing and predator density . Overall, these physical factors play a significant role in shaping copepod populations in various aquatic environments.

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Temperature, salinity, and phytoplankton density are the physical factors affecting copepod populations in the Kuantan River and its estuary.
Phytoplankton density, salinity, total suspended solids (TSS), and dissolved oxygen (DO) are physical factors that significantly influence copepod populations.
Temperature and salinity are the most important physical factors affecting copepod populations in the Gulf of Gabes.
The physical factors affecting copepod populations in the North Sea are primary productivity, the North Atlantic Oscillation (NAO), and sea surface temperatures (SST).

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