scholarly journals Jellyfish Blooms Causing Mass Envenomations in Aquatic Marathonists: Report of Cases in S and SE Brazil (SW Atlantic Ocean)

2018 ◽  
Vol 29 (1) ◽  
pp. 142-145 ◽  
Author(s):  
Vidal Haddad ◽  
André C. Morandini ◽  
Lucia E. Rodrigues
Keyword(s):  
Atlantic Ocean ◽  
Se Brazil ◽  
Sw Atlantic ◽  
Jellyfish Blooms

Gelatinous zooplankton (ctenophores, salps and medusae): an important food resource of fishes in the temperate SW Atlantic Ocean

2017 ◽  
Vol 13 (6) ◽  
pp. 630-644 ◽  
Author(s):  
Luciana Diaz Briz ◽  
Felisa Sánchez ◽  
Noemí Marí ◽  
Hermes Mianzan ◽  
Gabriel Genzano
Keyword(s):  
Atlantic Ocean ◽  
Food Resource ◽  
Gelatinous Zooplankton ◽  
Important Food ◽  
Sw Atlantic

Structure of the wedge-top and foredeep of the Magallanes-Malvinas basins between 62° W and 67° W (SW Atlantic Ocean)

2019 ◽  
Vol 93 ◽  
pp. 364-381 ◽  
Author(s):  
Juan Pablo Ormazabal ◽  
Alejandro Tassone ◽  
Federico Esteban ◽  
José Isola ◽  
Lubin Eric Cayo ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Sw Atlantic

Spatio-Temporal Changes in Basal Food Source Assimilation by Fish Assemblages in a Large Tropical Bay in the SW Atlantic Ocean

2020 ◽  
Vol 43 (4) ◽  
pp. 894-908
Author(s):  
Edjane Pereira Santos ◽  
Mario Vinicius Condini ◽  
Alexandre Clistenes Alcântara Santos ◽  
Heiddy Marquez Alvarez ◽  
Leonardo Evangelista de Moraes ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Food Source ◽  
Fish Assemblages ◽  
Temporal Changes ◽  
Sw Atlantic ◽  
Spatio Temporal ◽  
Tropical Bay

Diel vertical distribution of the larvaceanOikopleura dioicain a North Patagonian tidal frontal system (42°–45°S) of the SW Atlantic Ocean

2015 ◽  
Vol 11 (6) ◽  
pp. 633-643 ◽  
Author(s):  
Mariela Spinelli ◽  
Carla Derisio ◽  
Patricia Martos ◽  
Marcelo Pájaro ◽  
Graciela Esnal ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Vertical Distribution ◽  
Frontal System ◽  
Sw Atlantic ◽  
Diel Vertical Distribution

Taxonomy ofCladorhizain the deep SW Atlantic:C. nicoleaesp. nov. and redescription ofC. inversa(Cladorhizidae, Poecilosclerida, Demospongiae)

2015 ◽  
Vol 96 (2) ◽  
pp. 297-303
Author(s):  
Cristiana Castello-Branco ◽  
Jon Thomassen Hestetun ◽  
Hans Tore Rapp ◽  
Eduardo Hajdu
Keyword(s):  
New Species ◽  
Continental Slope ◽  
The Body ◽  
Shaped Body ◽  
Se Brazil ◽  
Sw Atlantic ◽  
A New Species

Until now only two species ofCladorhizahave been reported from the SW Atlantic, namelyC. diminutaandC. inversa, despite a total of 39 species reported from various parts of the globe. Here we describe a new species,C. nicoleaesp. nov., dredged from 750 m depth on the continental slope off SE Brazil during the French RV ‘Marion Dufresne’ expedition in 1987. It is an erect, pedunculated and club-shaped sponge, 26 mm high and with 12 radially arranged whip-like projections (each up to 3 mm long). The new species differs from its closest relative,C. inversa(redescribed here), by its possession of sigmas and sigmancistras. The holotype ofCladorhiza inversais also a pedunculated sponge, 1.9 cm tall, with a cup-shaped body with an apical spur-like continuation of the stem and a crown of 16 projections (up to 8 mm long) radiating from the rim of the body.

scholarly journals Description of Antho (Plocamia) bremecae sp. nov. and checklist of Microcionidae (Demospongiae: Poecilosclerida) from Burdwood Bank and neighboring areas, SW Atlantic Ocean 

Zootaxa ◽  
2017 ◽  
Vol 4312 (3) ◽  
pp. 580 ◽  
Author(s):  
SCHEJTER LAURA ◽  
BERTOLINO MARCO ◽  
CALCINAI BARBARA
Keyword(s):  
Atlantic Ocean ◽  
Tierra Del Fuego ◽  
Falkland Islands ◽  
The West ◽  
South Georgia ◽  
The North ◽  
Sw Atlantic ◽  
Scotia Arc ◽  
First Time ◽  
Burdwood Bank

In this contribution, we describe a new Demospongiae species, Antho (Plocamia) bremecae sp. nov., from the west slope of Burdwood bank, a poorly studied region in the SW Atlantic Ocean. We also recorded for the first time in the region two other microcionid species, Clathria (Axosuberites) nidificata and Clathria (Microciona) antarctica. In addition, a regional checklist of Microcionidae from Burdwood Bank and neighboring areas, including Malvinas (Falkland) Islands, Tierra del Fuego Province and the North of the Scotia Arc (South Georgia and Shag Rocks) is provided. 

scholarly journals Morphological and molecular characterization of the toxic dinoflagellate Ostreopsis cf. ovata (Dinophyta) from Brazil (South Atlantic Ocean)

2017 ◽  
Vol 65 (3) ◽  
pp. 1022 ◽  
Author(s):  
Fernando Gómez ◽  
Dajun Qiu ◽  
Rubens M. Lopes ◽  
Senjie Lin
Keyword(s):  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Current Knowledge ◽  
Molecular Data ◽  
Resolving Power ◽  
Lsu Rdna ◽  
Rrna Gene ◽  
Cell Dimensions ◽  
Sw Atlantic ◽  
The Mediterranean

Ostreopsis cf. ovata is a toxic epiphytic dinoflagellate widely distributed in warm waters that often co-occur with species of the genera Coolia, Fukuyoa, Gambierdiscus and Prorocentrum. We investigated a strain isolated from the coast of Ubatuba, Brazil (South-West Atlantic Ocean) by light and epifluorescence microscopies; we also report molecular data based on the LSU rDNA and ITS markers. Cells were 35-65 µm in the dorso-ventral diameter and 20-40 µm wide. We obtained the sequence of a ~1900 base pair region of the rRNA gene cistron. In the LSU rDNA phylogeny, the sequences under the names O. ovata and O. cf. ovata branched into three clades. The ITS marker showed greater resolving power and the sequences of O. ovata/O. cf. ovata split into five clades. Our ITS sequence branched in a clade with sequences of strains from the Mediterranean Sea, European Atlantic coasts, subtropical NE Atlantic, other sequences from Brazil at Rio de Janeiro, and a few sequences from Japan. The cell dimensions and thecal plate arrangement were under the variability range reported in other ocean regions. Our observations confirm O. cf. ovata as the most commonly recorded species of Ostreopsis in the SW Atlantic Ocean. Ostreopsis cf. ovata co-occurred with Coolia malayensis in Brazil and Asia, but it has been commonly reported from the Mediterranean Sea, where C. malayensis has not yet been recorded; while Coolia malayensis has been reported from the Caribbean Sea, but not O. ovata. With the current knowledge, it is difficult to understand the factors that determine the biogeography of the tropical epiphytic dinoflagellates. 

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