Variabilidade de pigmentos diagnósticos da comunidade fitoplanctônica no Canal de São Sebastião (São Paulo-BR)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Núcleo de Pesquisa em Biodiversidade Marinha da Universidade de São Paulo (NP-BioMar/USP

Ocorrência e co-existência de cianobactérias diazotróficas com o aumento da pluviosidade no Canal de São Sebastião – SP

Núcleo de Pesquisa em Biodiversidade Marinha da Universidade de São Paulo (NP-BioMar/USP

O impacto do upwelling de Cabo Frio sobre os processos metabólicos do plâncton: revisão bibliográfica

Núcleo de Pesquisa em Biodiversidade Marinha da Universidade de São Paulo (NP-BioMar/USP

Estimativa da concentração superficial de clorofila no oceano baseada no sensoriamento remoto orbital na faixa do UV

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Variabilidade na magnitude e comportamento espectral do fitoplâncton, detritos e matéria orgânica dissolvida colorida no canal de São Sebastião, durante o verão de 2015

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Núcleo de Pesquisa em Biodiversidade Marinha da Universidade de São Paulo (NP-BioMar/USP

The meridional gradiente soft the S-SE Brazilian continental shelf: Introduction to the special volume

This Special Issue is dedicated to the southern and southeastern Brazilian continental shelf. The works comprising the Issue review, substantia teor improve the description of the mechanisms the drive oceanographic processes known to date, and also report new findings. The works support that the strong meridional gradient of physical-chemical characteristics observed in this region is driven by the La Plata River plume influence of oceanic water masses in the north. The importance of the annual cycle of the wind field modulating the volumes of the distinct waters masses on the shelf is consolidated. The results gathered by this Special Issue strongly support that the continental shelf area near São Sebastião Island delimits two main oceanographic regimes with contrasting sedimentation rates and distinct primary and secondary production mechanisms. Nonetheless, it became clear that process-oriented studies are imperative for understanding how this region functions

Séries temporais e análises espectrais de propriedades oceanográficas da boia do projeto SiMCosta fundeada no Canal de São Sebastião, SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundo Clima, Ministério de Meio Ambiente (MMA)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Núcleo de Pesquisa em Biodiversidade Marinha da Universidade de São Paulo (NP-BioMar/USP

Temporal variation in intertidal community recruitment and its relationships to physical orcings, chlorophyll‑a concentration and sea surface temperature

We investigated the recruitment of intertidal barnacles\ud and mussels at three temporal scales (months, weeks and\ud days), and its relationships to physical forcings, chlorophylla\ud concentration (Chla) and sea surface temperature (SST), at\ud both a local (km) and a regional (10–100 km) resolution. The\ud study was conducted in the South Brazilian Bight, a subtropical\ud region influenced by upwelling and meteorological fronts,\ud where recruitment rates were measured monthly, biweekly\ud and daily, from 2012 to 2013 using artificial substrates fixed\ud in the intertidal zone. The strength of the relationship between\ud recruitment and physical forcings, Chla and SST depended on\ud the temporal scale, with different trends observed for barnacles\ud and mussels. Barnacle recruitment was positively correlated\ud with wind speed and SST and negatively related to the\ud wind direction, cold front events and Chla. Wind direction was positively correlated with mussel recruitment and negatively\ud covaried with SST. We calculated net recruitment (NR)\ud to estimate the differences in recruitment rates observed at\ud longer time scales (months and weeks), with recruitment rates\ud observed at shorter time scales (weeks and days), and found\ud that NR varied in time and among taxa. These results suggest\ud that wind-driven oceanographic processes might affect\ud onshore abundance of barnacle larvae, causing the observed\ud variation in recruitment. This study highlights the importance\ud of oceanic–climatic variables as predictors of intertidal invertebrate\ud recruitment and shows that climatic fluctuations might\ud have different effects on rocky shore communities.CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior)FAPESP (Fundação de Amparo a Pesquisa do Estado de São Paulo)Fundo Clima/MMA (Fundo Nacional sobre Mudança do Clima/Ministério do Meio Ambiente

Temporal variability of chlorophyll-a in the São Vicente estuary

Estuaries are extremely dynamic environments that are vulnerable to anthropogenic alterations. Thus, monitoring phytoplankton abundances and composition is an essential tool for the prediction of eutrophication and its effects on coastal ecosystems. Phytoplankton biomass, as chlorophyll-a, in the São Vicente estuary (Brazil) varies in response to tidal cycles and seasonal rainfall. Objectives. To present two datasets designed to assess the relationship between chlorophyll-a and changes in water turbidity driven by tide and rain. Methods. Weekly observations were made in the shallow embayment (February to September 2008; site 1) and observations recorded on alternate days (summer 2010, site 2). Results. At site 1, turbidity differed between high and low tides, but on most days was over 3000 RU, maintaining moderate chlorophyll-a levels (4 mg.m-3) and only two blooms developed during low turbidity. Site 2 mean turbidity was 1500 RU, nutrient level was higher during neap tides and phytoplankton blooms were mainly observed at the end of neap tides at 15-day intervals, dominated by chain-forming diatoms and occasionally flagellates and pennate diatoms. Conclusions. Taxonomic composition of the blooms was different and their frequency altered by events characterized by intense freshwater discharges from the Henry Borden Hydroelectric Dam (> 9*106.m³), inhibiting phytoplankton accumulation during neap tide periods