The shift in marine resource management from a compartmentalized approach of dealing with resources on a species basis to an approach based on management of spatially defined ecosystems requires an accurate accounting of energy flow. The flow of energy from primary production through the food web will ultimately limit upper trophic-level fishery yields. In this work, we examine the relationship...

Micro- and mesozooplankton were studied in the Sergipe estuary, northeastern Brazil, in order to assess the temporal variability in abundance and biodiversity under stressed conditions (urban pollution). Zooplankton samples and abiotic data were collected at one station during a full tidal cycle in July 2001 and in February 2002, corresponding to the rainy and dry seasons, respectively. The sal...

We analyzed the abundance of mesozooplankton and suspended particulate matter across the deep-water “A-Front” in the southern sector of the California Current System. We characterized the A-Front with two novel devices, a free-fall Moving Vessel Profiler (MVP) and an Underwater Vision Profiler 5 (UVP5), together with quantitative bongo samples analyzed by ZooScan. The MVP permitted real-time vi...

Nutritional value of freshwater mesozooplankton, fatty acid (FA) and amino acid (AA) compositions were determined in the middle of each season for a one-year period from May 2009 to February 2010 in Hanna Dam Lake, Isfahan, Iran. FA and AA composition significantly (P<0.05) varied in relation to the seasonal changes of water quality, phytoplankton and zooplankton community. The content of satur...

As mesozooplankton is the preferential prey of small pelagic fish (SPF), environmentally–driven dynamics can have critical effects on SPF population dynamics. Despite previous studies habitats’ dynamics, hydrological landscapes and in Bay Biscay (BoB), knowledge gaps persist at BoB regional–scale ecology particular about assemblages their long–term space–time patterns. Here, we present 16 years...

The number of trophic steps within a plankton food web plays an important role in determining the energy available to support higher-level consumers by affecting transfer efficiency (TE): fewer can enhance TE decreasing respiration and predation losses. In this study, structure zooplankton community was investigated using stable isotopes size-fractionated mesozooplankton, related 2 biomass prox...