“…Observaciones del fitoplancton frente a la costa norte (Paita y Chicama) por parte del The zooplankton composition was also altered during 2017 CEN, associated with the redistribution of water masses. Torres et al (2021) report the disappearance off the north coast, at least between February and October 2017 (i. e. up to 5 months after the end of the event) of the copepod Centropages brachiatus, a species characteristic of CCW (Gutiérrez et al, 2005). This disappearance was followed by the occurrence of the copepods Centropages furcatus (SEW indicator), Acartia danae, and Oncaea conifera (SSW) off the coasts of Lambayeque and Chicama.…”