Mesozooplankton Structure and Seasonal Dynamics in Three Coastal Systems of Argentina: Bahía Blanca Estuary, Pirámide Bay, and Ushuaia Bay

摘要: Mesozooplankton communities in coastal ecosystems have successfully adapted to a wide range of environments. However, the current rate modification is challenging survival resident species. In this chapter, we describe structure and annual dynamics mesozooplankton community recent years for three systems Argentina that are subject human disturbance: (1) Bahia Blanca Estuary, (2) Piramide Bay Nuevo Gulf (3) Ushuaia Beagle Channel. The seasonal abundance Estuary during 2009–2010 exhibited unimodal pattern with an increase warm seasons, while organism increased linearly both salinity turbidity. Gulf, research on conducted 2014–2015 bimodal peaks late summer spring. No significant relationships between environmental variables included were found. 2006–2008 early autumn; was mainly driven by concentration chlorophyll a. gradual decrease species richness observed throughout last four decades, changes composition also observed, suggesting some ability acclimate higher turbidity as well pollution. showed no modifications over time, which may be related low anthropogenic pressure. Although profound shifts Bay, eutrophication impact future through its effect primary producers.