Results 271 to 280 of about 725,151 (309)

Molecular affinity of Southwest Atlantic Alvinocaris muricola with Atlantic Equatorial Belt populations

Deep Sea Research Part I: Oceanographic Research Papers, 2020
Abstract Specialist fauna populations from chemosynthetic ecosystems are connected through larval stages travelling in current highways in the vast deep sea. One shrimp family of such specialists, Alvinocarididae, is hitherto known to be endemic to vents and seeps with no reported occurrence in ephemeral organic-rich chemosynthetic habitats.
Olívia S. Pereira, Maurício Shimabukuro, Angelo F. Bernardino, Paulo Y.G. Sumida   +3 more
openaire   +1 more source

Bacterial Abundance and Production in the Southwest Atlantic Ocean

Hydrobiologia, 2004
A bacterial dynamics study was conducted in the southwest Atlantic Ocean off the Brazilian coast from October to December 1998 with samples collected at the depth of chlorophyll a maximum. The bacteria were counted by flow cytometry with the SYTO13 DNA dye and bacterial activity was measured as carbon production by the uptake of 3H-leucine. The samples
L. Andrade, A.M. Gonzalez, J.L. Valentin, R. Paranhos   +3 more
openaire   +1 more source

Physical forcing in the southwest Atlantic: ecosystem control

2006
In the southwest Atlantic sector of the Southern Ocean, temporal variability in the physical environment has been recorded since the early part of the last century. For example, sea-surface temperature at South Georgia shows periodicity of approximately 3 to 4 years.
Trathan, P.N., Murphy, E.J., Forcada, J., Croxall, J.P., Reid, K., Thorpe, S.E.   +5 more
openaire   +2 more sources

Atlas of Benthic Shelf Foraminifera of the Southwest Atlantic

1980
Area of Study.- Water masses.- Cape Horn current.- Malvin current.- Coastal Argentine waters.- Area influenced by the Rio de la Plata.- Coastal waters of Uruguay and Southern Brazil.- Benthic foraminifera provinces.- North Patagonian subprovince.- South Patagonian subprovince.- Malvin subprovince.- Summary of Benthic Foraminiferal Investigations in the
Esteban Boltovskoy, Graciela Giussani, Silvia Watanabe, Ramil Wright   +3 more
openaire   +1 more source

Mixing in the Southwest Atlantic

2019
V Encuentro de la Oceanografía Física (EOF 2018) - V Physical Oceanography Meeting, VI Simposio Internacional de Ciencias del Mar - VI International Symposium of Marine Sciences (ISMS 2018), 20- 22 June 2018, Vigo.-- 1 ...
Orúe-Echevarría, Dorleta, Naveira-Garabato, Alberto, Polzin, Kurt L., Pelegrí, Josep Lluís   +3 more
openaire   +1 more source

Invasive potential of the coral Tubastraea coccinea in the southwest Atlantic

Marine Ecology Progress Series, 2013
Departamento de Engenharia e Meio Ambiente, CCAE, Universidade Federal da Paraiba, 58297-000 Rio Tinto, PB, Brazil Programa de Pos-graduacao em Etnobiologia e Conservacao da Natureza, Universidade Federal Rural de Pernambuco, 52171-900, Recife, PE, Brazil Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, 20550-900, Rio de Janeiro, RJ,
P Riul, CH Targino, LAC Júnior, JC Creed, PA Horta, GC Costa   +5 more
openaire   +1 more source

The role of the Magellan Strait on the southwest South Atlantic shelf

Estuarine, Coastal and Shelf Science, 2020
Abstract We analyze historical hydrographic data together with recent high-resolution hydrographic and underwater glider observations collected in the Magellan Strait to determine the water mass characteristics and exchanges between the continental shelves of the southeast South Pacific and southwest South Atlantic around southern South America.
Brun, Anahi Amaru, Ramirez, Nadin, Pizarro, Oscar, Piola, Alberto Ricardo   +3 more
openaire   +2 more sources

Pliocene variations in the position of the Antarctic convergence in the southwest Atlantic

Paleoceanography, 1986
Middle to late Pliocene (4.1–1.9 Ma) variations in the positions of surface water masses and migrations of the Polar Front in the southwest Atlantic are inferred from a factor analysis of radiolarian assemblages from DSDP site 514. Faunal results suggest that surface water masses underwent progressive cooling as the Polar Front Zone (PFZ) advanced ...
Paul F. Ciesielski, Gary P. Grinstead
openaire   +1 more source

Clay mineralogy of the southwest equatorial Atlantic sediments

1970
The problem under investigation is basically two fold, (1) the determination of the partial grain-size distribution and (2) the mineralogy of the clay/fine silt size fractions of the equatorial Atlantic bottom sediments. From these data, it was hoped to find the controlling factors for the size distribution and mineralogy of the bottom sediments.
openaire   +1 more source

Macrofouling on marine litter in a Southwest Atlantic urban tropical bay and surrounds

Marine Pollution Bulletin
Rafting is the transport of marine litter by organisms, influenced by substrate characteristics such as degradation, shape, surface orientation, color, and polymer type. This study focuses on rafting in the Southwest Atlantic, characterizing biofouling on different materials across high- and low-energy beaches.
Alain Alves, Póvoa, Luiza Reis, de Souza, Igor Rodrigues, Henud, Mariana Gonçalves, Tavares, Renan Martins, Amorim, Abilio, Soares-Gomes   +5 more
openaire   +2 more sources