The Eastern Scheldt estuary in the Netherlands has been anthropogenically changed by construction of a storm surge barrier about 30 years ago, affecting abiotic conditions as well phytoplankton and zooplankton (ZP). As ZP communities have not sampled last decades, it is unclear to what extent they during years. We analyzed micro- mesoZP composition background parameters at eight stations spring...

A new synthesis of laboratory measurements of food-saturated development and growth across diverse copepod taxa was conducted in a theoretical framework that distinguishes general allometric constraints on copepod physiology from contingent strategies that correlate with size for other reasons. After temperature correction, the allometry of growth rate is inconsistent between the ontogeny of Ca...

The impact of copepod grazing on Fe regeneration was investigated in a naturally iron fertilised area during KEOPS (Kerguelen Ocean and Plateau compared Study, Jan.-Feb. 2005). 55 Fe labelled natural plankton assemblages (< 200 μm) were offered as food to copepod predators sampled in the field (Calanus propinquus, Rhincalanus gigas, Metridia lucens and Oithona frigida). Diatoms (Eucampia antarc...

During the Second Marine Zooplankton Colloquium (MZC2) 3 issues were added to those developed 11 yr ago during the First Marine Zooplankton Colloquium (MZC1). First, we focused on hot spots, i.e., locations where zooplankton occur in higher than regular abundance and/or operate at higher rates. We should be able to determine the processes leading to such aggregations and rates, and quantify the...

Percentage composition of protein, lipid, carbohydrate and amino acids of copepods, Acartia spinicauda and Oithona similis collected from Parangipettai coastal waters were estimated following standard methodologies. Of the principal biochemical constituents, protein formed the major component followed bylipid and carbohydrate. Biochemical composition analysis of wild copepods indicated their nu...

Predation plays an important organisational role in structuring aquatic communities. Predator diversity can, however, lead to emergent effects which the outcomes of predator–prey interactions are modified. The importance predator regulating was investigated during a 9-day mesocosm study conducted middle reach temporarily open/closed, temperate, southern African estuary. zooplankton community, c...