Papers by Gabrielle Farina
Young pelagic, planktivorous fish species feed on phytoplankton and zooplankton larvae, which res... more Young pelagic, planktivorous fish species feed on phytoplankton and zooplankton larvae, which respond to nutrient delivery by upwelling. Off the coast of Southern California, wind-driven coastal upwelling is affected by the position and strength of the North Pacific High Pressure system (NPH). When NPH strength increases, coastal upwelling intensifies and dry climate conditions prevail. Here we determine the abundance of four pelagic fish species; Northern anchovy (Engraulis mordax), Pacific sardine (Sardinops sagax), hake (Merluccius productus), and surfperch (Embiotocidae spp.), in Santa Barbara Basin (SBB) over the last 1500 years and relate population fluctuations to regional upwelling and the strength of the NPH. Proxies for marine productivity, drought and surface water masses based on sediment geochemistry are used to reconstruct NPH strength and surface ocean circulation. Sediment core SPR0901-02KC was collected from the SBB (34 16.8′ N, 120 02.3′ W) and sampled continuously...
Uploads
Papers by Gabrielle Farina