Results 261 to 270 of about 196,961 (299)

The Convergence Ecosystem in the Southwest Atlantic

2001
The Atlantic subtropical anticyclone and the antarctic circumpolar current drive the upper oceanographic circulation in the Southwest Atlantic. The large-scale flow field comprises the south and northward flowing western boundary currents, the Brazil and Malvinas (=Falkland) currents, respectively. The Brazil Current transports warm tropical water (TW)
C. Odebrecht, J. P. Castello
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Mazocraeid Monogeneans Parasitic on Engraulid Fishes in the Southwest Atlantic

The Journal of Parasitology, 1999
Two species of mazocraeid monogeneans are reported for the first time from Argentinean-Uruguayan engraulid fish hosts, Engraulis anchoita and Anchoa marini. Mazocraes australis n. sp. collected from the gills of E. anchoita is described: this new species can be distinguished from the other congenerics by the number of genital hooks in the copulatory ...
J T, Timi, N H, Sardella, J A, Etchegoin
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Krill fishing activity in the southwest Atlantic

Antarctic Science, 1991
Commercial krill fishing has been undertaken in the Southern Ocean for twenty years. Recently the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) introduced a reporting scheme to summarize catch data from half degree of latitude by one degree of longitude rectangles.
Inigo Everson, Catherine Goss
openaire   +1 more source

Nemertean Larval Dispersion Across Biogeographic Provinces of Southwest Atlantic

Zoological Science, 2020
The nemertean Malacobdella arrokeana is a commensal of the edible giant bivalve Panopea abbreviata; both species have a restricted geographic distribution, high specificity and populations settled along distinct biogeographic provinces. This supposes a high genetic structuring among populations and low intra-populational variability; nevertheless, a ...
Fernandez Alfaya, Jose Elias, Tonini, Mariano Hernan, Soria, Rodrigo Gaspar, Penchaszadeh, Pablo Enrique, Bigatti, Gregorio   +4 more
openaire   +3 more sources

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
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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
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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
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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