Western Pacific Zooplankton Community along Latitudinal and Equatorial Transects in Autumn 2017 (Northern Hemisphere)

During the autumn of 2017, a study was conducted to assess zooplankton community composition in three sections (two latitudinal, going from Japan equator, and one longitudinal on equator) Western Pacific Ocean. A total 384 species adults 21 groups larvae were identified, with copepods being predominant taxon. The common dominant across Acrocalanus gibber, Canthocalanus pauper, Oithona similis, Paracalanus aculeatus, Oncaea venusta. Zooplankton abundance highest equator section, mean 258.94 ± 52.57 ind./m3. Comparatively, low recovered Subtropical Countercurrent (STCC) region, while holding stations located eastern equatorial North Equatorial (NECC) regions. Pearson’s correlation, canonical correspondence analysis, other methods used analyze relationship between environmental factors zooplankton. We found that Shannon–Wiener diversity index Pielou’s uniformity significantly correlated (p < 0.05) concentrations nitrite chlorophyll a. distribution also limited by nutrients, a, dissolved oxygen. In addition, we reveal differences latitudinal seas. not only temperature nutrient salinity, but ocean currents movement water masses, influence communities Pacific.