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|Title: ||Monsoon driven seasonal succession of copepod assemblages in the coastal waters of the northeastern Taiwan Strait|
|Authors: ||Li-Chun Tseng|
|Keywords: ||Copepod assemblages|
Kuroshio Branch Current
|Issue Date: ||2018-10-30T02:06:55Z
|Publisher: ||Zoological Studies|
|Abstract: ||Abstract: Monsoon winds (a southwesterly (SW) monsoon during summer and a northeasterly
(NE) monsoon during winter) were shown to play pivotal roles in shaping species richness and diversity
of planktonic organisms in the water masses of the Taiwan Strait (TS). We investigated monsoon-related
variations in copepod assemblages in the northeastern TS from Aug. 1998 to May 1999 on 4 research cruises.
Our data provide basic information for the biological monitoring of the TS, using improved index measurements.
In total, 36 copepod species belonging to 21 genera and 14 families were identified. The abundance of
Calanoida showed a negative correlation with salinity (r = -0.381, p = 0.011, Pearson,
s product moment correlation)and a positive correlation with temperature (r = 0.662, p < 0.001, Pearson,
s product moment correlation).
Application of the indicator value index proposed by Dufrêne and Legendre indicated that cold-water species
become dominant in this region only when the NE monsoon weakens and retracts from the southern part of the
TS. Regardless of the seasonal succession, the calanoid copepod, Acrocalanus gibber, was the dominant
species with a mean density of 3868 individuals (ind)/1000 m3 (with a relative abundance of 36.5%), followed
by Acartia erythraea with a mean density of 1874 ind/1000 m3 (17.7%), and by Labidocera euchaeta with a
mean density of 1178 ind/1000 m3 (11.1%). Four copepod communities were distinguished prior to the advent
of the NE and SW monsoonal winds and during the peak periods of the respective monsoons. Our results also
reveal the influence of the Kuroshio Branch Current in the study area on copepod assemblages, with temporal
successions being determined by the SW and NE monsoonal winds.
|Relation: ||47(1) pp.46-60|
|Appears in Collections:||[生命科學暨生物科技學系] 期刊論文|
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