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Frederico Brandini

Frederico Brandini
University of São Paulo - Oceanographic Institute · Biological Oceanography

PhD

About

130
Publications
32,220
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2,650
Citations
Additional affiliations
July 1981 - January 2009
Universidade Federal do Paraná
Position
  • Professor (Associate)

Publications

Publications (130)
Article
Marine microbes control the flux of matter and energy essential for life in the oceans. Until now, the distribution and diversity of planktonic microorganisms above Fe-Mn crusts have received relatively little attention. Future deep-sea mining is predicted to affect microbial diversity. Here, we studied the ecology of picoplankton among pelagic zon...
Article
Full-text available
The horizontal distribution of plankton communities in a subtropical mixed estuarine system over one tidal cycle was investigated. Hydrological and planktonic samples were obtained twice on 17 July 2007 in a transect with ten stations in the Babitonga Bay estuary, south Brazil (~26°S). Hydrological variables did not vary spatially or tidally during...
Article
The vertical export of particulate organic carbon (POC) is a key component of the oceanic biological pump, which regulates the distribution of elements associated with primary production in the upper euphotic zone. To better understand how oceanic biogeochemical processes will respond in climate change scenarios, it is necessary to comprehend the m...
Article
Full-text available
Seamounts are often covered with Fe and Mn oxides, known as ferromanganese (Fe–Mn) crusts. Future mining of these crusts is predicted to have significant effects on biodiversity in mined areas. Although microorganisms have been reported on Fe–Mn crusts, little is known about the role of crusts in shaping microbial communities. Here, we investigated...
Article
Full-text available
A comprehensive in situ dataset of chlorophyll a (Chl a; N = 18,001), net primary production (NPP; N = 165) and net community production (NCP; N = 95), were used to evaluate the performance of Moderate Resolution Imaging Spectroradiometer on Aqua (MODIS-A) algorithms for these parameters, in the South Atlantic Ocean, to facilitate the accurate gene...
Preprint
Full-text available
Marine microbes control the flux of matter and energy essential for life in the oceans. Until now, the distribution and diversity of planktonic microorganisms above Fe-Mn crusts has received relatively little attention. Future mining\dredging of these minerals is predicted to affect microbial diversity and functioning in the deep sea. Here, we stud...
Article
Symbiotic octocorals are important reef inhabitants, from shallow to mesophotic depths. However, information regarding their nutritional ecology along the depth gradient, and in particular the changes in the autotro-phic and heterotrophic acquisition of nutrients, is limited, despite the fact that nutrient acquisition is a fundamental process in ex...
Article
Full-text available
Artificial reefs (ARs) have been deployed on the inner shelf of Paraná, Southeast Brazil, as protection against destructive trawling activities, and to offer habitat for local fauna for recovery of biodiversity. The purpose of this study was to develop a preliminary characterization of the ichthyoplankton community associated with both artificial a...
Preprint
Full-text available
We demonstrate how the wind-driven Ekman transport enhances the advection and mixing of cells from the colder waters of the Surface Antarctic Waters from the south to the warmer waters of the northern Polar Front (PF) belt. This mechanism provides cells a mean ambient temperature near optimum levels for species-specific and, ultimately, community g...
Article
Full-text available
Coccolithophores are a key functional phytoplankton group and produce minute calcite plates (coccoliths) in the sunlit layer of the pelagic ocean. Coccoliths significantly contribute to the sediment record since the Triassic and their geometry have been subject to palaeoceanographic and biological studies to retrieve information on past environment...
Preprint
Full-text available
Seamounts are often covered with Fe and Mn oxides, known as ferromanganese (Fe−Mn) crusts. Future mining of these crusts is predicted to have significant effects on biodiversity in mined areas. Although microorganisms have been reported on Fe−Mn crusts, little is known about the role of crusts in shaping microbial communities. Here, we investigated...
Article
The pool of particulate organic matter driven by primary production in western boundary continental margins is known to be smaller than the highly eutrophic upwelling systems of eastern margins. Its production and export, however, can be high compared to productive ocean environments due to inherent specific physical dynamics such as mesoscale inst...
Article
Full-text available
The autotrophic plankton assemblage along the subtropical coastal embayments of the South Brazil Bight is dominated by the cyanobacteria Synechococcus. This investigation evaluated the contribution of photosynthetic carbon fixation to the total Carbon metabolism within the planktonic system of Mamanguá Ría, a sub-system of the Bay of Ilha Grande, s...
Article
Full-text available
The South Brazilian Bight (SBB) is a hydrographically dynamic environment with strong seasonality that sustains a diverse planktonic community involved in diverse biogeochemical processes. The inherent optical properties (IOPs; e.g., absorption and scattering coefficients) of optically actives constituents of water (OACs; phytoplankton, non-algal p...
Article
Full-text available
The autotrophic plankton assemblage along the subtropical coastal embayments of the South Brazil Bight is dominated by the cyanobacterium Synechococcus. This investigation aims to assess its contribution to the total carbon metabolism within the planktonic system of Mamanguá Ría, a sub-system of the Bay of Ilha Grande, southeast Brazilian coast. We...
Article
Full-text available
Multidisciplinary data were collected during the Rio Grande Rise cruise (RGR1), including geophysical (using multibeam, sonar, backscatter, chirp, magnetometer), geological (using dredges, box corer, gravity corer), benthic ecology, hydrographic (using CTD, ADCP, L-ADCP), biogeochemical, and geomicrobiological. These data supplement and expand prev...
Article
The Rio Grande Rise is an extensive seamount region in the South-western Atlantic, with potential for deep-sea mining activities in the future. Such activities pose significant long-term disturbances and potentially severe impacts to both ecosystem structure and functioning, as well as associated ecosystem services. The Rio Grande Rise presents a s...
Article
Full-text available
The ichthyotoxic dinoflagellate Karlodinium veneficum has a worldwide distribution and produces highly potent lytic toxins (karlotoxins) that have been associated with massive fish kill events in coastal environments. The capacity of K. veneficum to gain energy from photosynthesis as well as phagotrophy enables cellular maintenance, growth and disp...
Article
Full-text available
We surveyed the gelatinous zooplankton (Cnidaria, Ctenophora, Chaetognatha, Tunicata) fauna from the Cananeia-Iguape Coastal System (CICS; São Paulo, Brazil; ~ 25°S). This area includes a natural reserve formed by the Atlantic Rain Forest and mangroves, having a high biological productivity and being recognized as a wildlife sanctuary. We analyzed...
Chapter
Photosynthesis is the fundamental process by which autotrophs produce organic matter to sustain the biosphere using basic elements (i.e., CO2 and H2O) and solar irradiance as energy source. Marine phytoplankton provides near half of the global primary production (PP), being at the base of most marine trophic webs and playing an important role in th...
Chapter
Full-text available
Marine ecosystems respond first to physical-chemical changes in the upper euphotic layers through its phytoplankton community, an assemblage of unicellular eukaryotic and prokaryotic photoautotrophs growing at the same time and spatial scales of hydrodynamic processes. Temporal and spatial environmental changes are followed by physiological adaptat...
Chapter
Full-text available
The South Brazilian Bight (23–28.5°S; SBB) is a typical western boundary current system with a wide shelf and which has high ecologic and economic importance, supporting nationally important fishing grounds. Away from the coastal areas, the planktonic production is mostly controlled by regenerative processes prevailing in the oligotrophic Tropical...
Book
Full-text available
This book integrates a variety of issues such as regional settings of productivity and nutrient cycling; plankton of coastal and shelf systems; plankton, climate change and human-induced changes; harmful algae and their impacts; and gelatinous zooplankton. This book explores the intriguing marine plankton communities of the SWA region of South Amer...
Article
Full-text available
Here we described the general hydrography in the South Brazil Bight (23–28°S) with emphasis on frontal processes and their role in the structure and functioning of the regional shelf ecosystem. One of the key roles of fronts for ecosystem dynamics is the injection of nutrients into the euphotic zone increasing primary production. Frontal systems al...
Article
Marine calcifying eukaryotic phytoplankton (coccolithophores) is a major contributor to the pelagic production of CaCO3 and plays an important role in the biogeochemical cycles of C, Ca and other divalent cations present in the crystal structure of calcite. The geochemical signature of coccolithophore calcite is used as palaeoproxy to reconstruct p...
Article
Full-text available
Symbioses between eukaryotic algae and nitrogen-fixing cyanobacteria have been recognized in recent years as a key source of new nitrogen in the oceans. We investigated the composition of the small photosynthetic eukaryote communities associated with nitrogen-fixing cyanobacteria in the Brazilian South Atlantic Bight using a combination of flow cyt...
Article
Full-text available
To investigate how pico- and nano-plankton respond to oceanographic conditions in the Southwestern Atlantic Ocean, we assessed the influence of a summer intrusion of the South Atlantic Central Water (SACW) on the spatial and vertical dynamics of planktonic abundance and carbon biomass across environmental gradients. Seawater samples were collected...
Article
Full-text available
A área ocupada pela Zona Econômica Exclusiva (ZEE) brasileira e suas extensões é estimada em 4,5 milhões de quilômetros quadrados, sendo mais do que a metade da área do Brasil continental. Essa área marinha sobre a qual o Brasil exerce alguma forma de soberania tem sido denominada “Amazônia Azul”. Apesar do enorme potencial de recursos existentes n...
Article
Full-text available
The first record of Apterichtus kendalli in the Southeast Brazilian Bight is reported based on one leptocephalus collected at around the 100 m isobath during an oceanographic cruise in 1979. It is the southernmost record of this species in the Atlantic. The leptocephalus of A. kendalli was identified based on myomeres counts, fin positions, nine mo...
Article
Full-text available
Pico and nanoplankton communities from the Southwest Atlantic Ocean along the Brazilian Bight are poorly described. The hydrography in this region is dominated by a complex system of layered water masses, which includes the warm and oligotrophic Tropical Water (TW), the cold and nutrient rich South Atlantic Central Water (SACW) and the Coastal Wate...
Data
Surface distributions of total heterotrophic bacteria (A), Prochlorococcus (B), Synechococcus (C), picoeukaryotes (D) and nanoeukaryotes (E) in cells mL−1
Data
Example of flow cytometry gating patterns used to discriminate the different pico- and nanoplanktonic populations (A) Side scatter versus chlorophyll-a and (B) phycoerythrin versus chlorophyll-a: Prochlorococcus (pink), Synechococcus (green), picoeukaryotes (blue) and nanoeukaryotes (orange); (C) side scatter versus DNA fluorescence: heterotrophic...
Data
Vertical distributions of biotic data Vertical distributions (from the top) of: total autotrophic biomass (µgC L−1), relative contribution to total biomass (in percentage) of total heterotrophic bacteria, and relative contribution to autotrophic biomass (in percentage) of Prochlorococcus, Synechococcus and picoeukaryotes, for TR1 (A–E, right column...
Data
Surface distributions of temperature (T °C) (A), salinity (B), fluorescence (RFU) (C), nitrates (µM) (D) and phosphates (µM) (E)
Data
Surface distributions of biotic data Surface distributions of total autotrophic biomass (µgC.L−1) (A), relative contribution to total biomass (in percentage) of total heterotrophic bacteria (B), relative contribution to autotrophic biomass (in percentage) of Prochlorococcus (C), Synechococcus (D) and picoeukaryotes (E).
Article
Full-text available
For almost three decades, flow cytometry has allowed researchers to investigate ocean planktonic communities using size and cell fluorescence properties. However, oceanographic applications must face two constraints. First, when dealing with marine microbes, instruments must be sensitive because these organisms are very small and with low fluoresce...
Article
Full-text available
The sea-bob shrimp is a shallow-water species whose population dynamics along the southern and southeastern coasts of Brazil is influenced by the upwelling of the South Atlantic Central Water (SACW). Since the SACW does not reach our study area, we hypothesize that life cycle and distribution patterns are dominated by the local regime of estuarine...
Article
Full-text available
Two coccoid cyanobacteria isolated from South Atlantic Ocean continental shelf deep water and from a marine green algae inhabiting the Admiralty Bay, King George Island, Antarctica were investigated based on morphological and ultrastructural traits, phylogeny of 16S rRNA gene sequences, secondary structure of the 16S-23S ITS regions and phylogenomi...
Article
Full-text available
Three Aequorea macrodactyla (Brandt 1835) medusae were found along the São Paulo and Rio de Janeiro coasts. The specimens clearly match the diagnosis of the species, as they have tentacular bulbs with a large abaxial keel and a prominent excretory pore and papilla. The number of tentacles is approximately three times smaller than the number of radi...
Article
Full-text available
The diel vertical dynamics of gelatinous zooplankton in physically stratified conditions over the 100-m isobath (~110 km offshore) in the South Brazilian Bight (26°45'S; 47°33'W) and the relationship to hydrography and food availability were analyzed by sampling every six hours over two consecutive days. Zooplankton samples were taken in three dept...
Data
Medusae species list with averaged water column integrated density (ind. 10 m-3) and averaged weighted mean depth (m) during diurnal and nocturnal hauls, frequency of capture (FC, %) and relative abundance (RA, %). SD = standard deviation, t = statistic parameter of t test; * p <0.05, **p<0.01, ***p<0.001. (PDF)
Data
Ctenophores species list and summary of the catches. Legends as in S1 Table. (PDF)
Data
The samples are labeled as follow: D1 or D2 refers to the first and second sampling day; the subsequent number (6, 12, 18 or 24) refers to the sampling time (early morning, noon, early night and midnight respectively) and then to the depth stratum. The abundance of the cnidarians, ctenophores and thaliaceans is shown as the average of the three rep...
Data
Siphonophores species list and summary of the catches. DS = developmental stages; P = polygastric, E = eudoxid. Other legends as in S1 Table. (PDF)
Data
Thaliaceans species list and summary of the catches. DS = developmental stage; B = blastozooids (aggregates); O = oozooids (solitaries), P = phorozooids; G = gonozooids; N = nurses; A = all stages combined. Other legends as in S1 Table. (PDF)
Conference Paper
Full-text available
The present study reports on a survey of the diversity of gelatinous zooplankton from the Cananéia-Iguape Estuarine System, São Paulo, southeastern Brazil (~25°S). This area includes a natural reserve area formed by the Atlantic Forest and mangroves, representing one of the most important Brazilian coastal ecosystems. It has a high biological produ...
Article
Full-text available
We investigated the influence of oceanic fronts on mesozooplankton distribution and grazing activity in the south-west Atlantic. Sampling was conducted during late spring 1993 along a north-south transect between subtropical waters off Brazil and Antarctic waters. Mesozooplankton abundance and biomass were ∼10-fold higher in the Subtropical Conflue...
Article
Full-text available
We analysed 267 zooplankton samples collected in the South Brazilian Bight (SBB; 23–27°S) to determine whether hydroids, typically benthic, are common components of the pelagic SBB. Two species, Clytia arborescens , recorded for the first time in the Atlantic Ocean, and Clytia sp. were identified. While these planktonic hydroids were frequent or re...
Article
Full-text available
The novel chroococcalean cyanobacterium strain CENA595 was isolated from the deep chlorophyll maximum layer of the continental shelf of the South Atlantic Ocean. Here, we report the draft genome sequence for this strain, consisting of 60 contigs containing a total of 5,265,703 bp and 3,276 putative protein-coding genes.
Article
Full-text available
In the present study, the distribution and abundance of microphytoplankton were assessed in the south-western Atlantic Ocean from subtropical to polar waters (34°–62°S) in two austral springs with contrasting hydrographic conditions. Vertical profiles of open-ocean (ca. 54°W) samples (C 18 L filtered water) were performed in 20 stations (0–100 m) in...
Article
Full-text available
The subtropical coastal zone of Paraná state in southern Brazil is only 80 km long yet environmentally diverse, with relatively pristine coastal landscapes and high marine and coastal biodiversity supporting important artisanal fishing grounds. However, this region began to change in the early 1970s. The development of industrial harbors, as well a...
Article
Full-text available
The spatial and temporal variations of planktonic cnidarians were studied across the inner continental shelf (≤40 m) off the State of Parana´ in southern Brazil. Monthly zooplankton samples were taken between November 1997 and March 1999 at five stations. The holoplanktonic Liriope tetraphylla and Muggiaea kochi dominated during the entire period,...
Article
Full-text available
The continental shelf of the South Brazilian Bight (Lat 23–28.5°S) is subject to bottom intrusions of the oceanic and nutrient-rich South Atlantic Central Waters (SACW) in summer, to compensate for the Ekman transport of surface waters offshore by northeasterly winds. In winter, shelf waters tend to overturn vertically due to tidal circulation and...