Assessing Summertime Primary Production Required in Changed Marine Environments in Upwelling Ecosystems Around the Taiwan Bank

The Taiwan Bank (TB) is located in the southern Strait, where marine environments are affected by South China Sea Warm Current and Kuroshio Branch summer. bottom water flows upward along edge of continental shelf, forming an upwelling region that essential high-productivity fishing ground. Using trophic dynamic theory, fishery resources can be converted into primary production required (PPR) production, which indicates environmental tolerance ecosystems. This study calculated PPR benthic pelagic species, sea surface temperature (SST), size, net (NPP) to analyze resource structure spatial distribution upwelling, non-upwelling, thermal front (frontal) areas TB Pelagic predominated those Scombridae, Carangidae families Trachurus japonicus, accounted for 77% (67% total catch). species were dominated Mene maculata members Loliginidae family. intensity was strongest June weakest August. Generalized additive models revealed frontal habitats had highest deviance explained (28.5%). Moreover, influenced NPP, also main factor affecting all three habitats. high as well low SST negative values multivariate El Niño–Southern Oscillation (ENSO) index (16.9%) non-upwelling (11.5%). composition varied habitat; this variation ascribed impacts from ENSO. No significant differences noted composition. Overall, susceptible climate change, whereas mostly insensitive climatic factors more NPP.