Climate Impacts on plankton copepoda in the Northeast of Taiwan
Yanguo Wang 1,2, Jiangshiou Hwang 1
1. Institute of Marine Biology, National Taiwan Ocean University, Keelung
2. Institute of Oceanography, Ministry of Natural Resources, Xiamen
Historical materials were reviewed since 2009 to 2020 with about 26 cruise investigations around the Kueishan Island, the Northeast of Taiwan. The results shown that the abundance of surface pelagic copepod was highest during summer cruise with the average 3184.85 ind./m³. Then, the average abundance of autumn cruise was higher than spring and winter with the value 2001.61 ind./m³. The average abundance only was 145.03 ind./m³ during winter cruise in the research area. Calanus sinicus, which was defined as the China Coastal Current in research area, account for 0 to 13.90% of the total copepod average abundance during 2009 to 2020. The highest average abundance of Calanus sinicus was recorded during spring cruise with the value 144.74 ind./m³. The average abundance was 9.13 ind./m³ and 8.95 ind./m³ during summer and autumn cruise. During the winter cruise, the Calanus sinicus average abundance only was 3.01 ind./m³ in research area. The percentage of the Temora turbinata was ranged from 0.74% to 57.27% during 2009 to 2020 in the research area. The highest average abundance was recorded during summer cruise with the value 812.13 ind./m³, which accounted for 25.50% of the total copepod average abundance. The average abundance of this species were 55.44 ind./m³ and 19.60 ind./m³ during autumn and spring cruise. During winter cruise, the average abundance of this species was only 1.08 ind./m³ which accounted 0.74% of the total average abundance.
Keywords: Temora turbinata, Calanus sinicus, Copepoda, Kueishan Island, East China Sea, Northwest Pacific Ocean.
