Abstract. The balance between ocean mixing and stratification influences primary productivity through light limitation nutrient supply in the euphotic ocean. Here, we apply a hierarchical clustering algorithm (Ward's method) to four factors relating (wind energy, freshwater index, water-column-averaged vertical eddy diffusivity, halocline depth), as well depth-integrated phytoplankton biomass, ...

Ecological connections between surface waters and the deep ocean remain poorly studied despite the high biomass of fishes and squids residing at depths beyond the euphotic zone. These animals likely support pelagic food webs containing a suite of predators that include commercially important fishes and marine mammals. Here we deploy pop-up satellite archival transmitting tags on 15 Chilean devi...

Response: In fact the introduction hypothesizes but does not “assume” that SCM have a large role in new water-column primary production. This hypothesis was formulated on the basis of recent observations published in Martin et al. 2010. These authors characterized Arctic SCM and compared them with those of warmer oceans. The comparison revealed striking differences between these oceans and the ...

We have determined the photosynthetic production of dissolved (DOCp) and particulate organic carbon (POCp) along a longitudinal transect in the Mediterranean Sea during the summer stratification period. The euphotic layer-integrated rates of DOCp and POCp ranged between approximately 50–130 and 95–210 mgC m−2 d−1, respectively, and showed an east to west increasing trend. For the whole transect...

The surface circulation in the Mozambique Channel changes from northern part, where system is under dominance of monsoons, to central and southern parts, mesoscale eddies are more frequent. Despite these differences physics between three regions, satellite-based primary production shows that whole region characterized by similar seasonal variability production, which winter most productive seas...

under the contemporary scenario of global climate change and increasing coastal eutrophication, baseline studies of phytoplankton diversity and distribution in relation to habitat conditions constitute the first approach to evaluate potential shifts at the base of the food webs. here we present data of phytoplankton species composition and environmental variables in winter 2006 in a temperate e...

Effects of aquaculture on hydrodynamics and associated nutrient supply in a typical area the coastal Yellow Sea are investigated with high-resolution model experiments situ data. The results show significant reduction supply, which is alternations three hydrodynamic conditions: onshore current across outer-boundary area, upwelling within offshore (depth >10 m) water exchange near-coastal <10 ar...

We report on investigations of bacterioplankton growth dynamics and carbon utilization in the full water column of the Ross Sea, Antarctica carried out on six cruises in 1994–1997, using epifluorescence microscopy, thymidine and leucine incorporation to estimate bacterial abundance and production, respectively. The Ross Sea experienced a bacterial bloom with an amplitude equaling similar blooms...