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Mostrando ítems 1231-1240 de 3422
Argentine anchovy (Engraulis anchoita) stock identification and incipient exploitation in southern Brazil
(Pontificia Universidad Católica de Valparaíso, 2017)
Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy
(Instituto Oceanográfico, 2013-06)
Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied ...
What are you eating? A stable isotope insight into the trophic ecology of short-beaked common dolphins in the Southwestern Atlantic Ocean
(Elsevier Gmbh, 2016-11)
As the feeding habits of marine mammals are particularly difficult to observe, stable isotope analysis has become an essential tool to investigate several aspects of dolphin's trophic ecology. Short-beaked common dolphins ...
Long term fish assemblages as units of management in a temperate estuary (Rio de La Plata - SW Atlantic Ocean)
(Instituto Oceanográfico, 2011-03)
Demersal fish assemblages from trawl surveys in the Rio de la Plata estuary and its inner continental shelf were analyzed from 1975 to 1995. The first two factors of Principal Component Analysis explained 48% of the variance ...
Shionodiscus gaarderae sp. nov. (Thalassiosirales, Thalassiosiraceae), a bloom-producing diatom from the southwestern Atlantic Ocean, and emendation of Shionodiscus bioculatus var. bioculatus
(Biopress Limited, 2018-01)
The recently established diatom genus Shionodiscus is characterized as possessing a labiate process on the valve face and strutted processes with long internal and reduced, or no, external extensions. Many Thalassiosira ...
Relevance of sporadic upwelling events on primary productivity: The key role of nitrogen in a gulf of SW Atlantic Ocean
(Elsevier Science, 2021-02)
In order to assess the relevance of sporadic upwelling events on primary productivity, the availability of nitrogen (N) sources and their uptake by phytoplankton were studied. Incubations of 15N-enriched samples were ...
Environmental evaluation of the Northern Argentine Sea (South-Western Atlantic Ocean, 35°-42°S)
(Elsevier Science, 2019)
The Northern area of the Argentine Sea is a very wide system, with a large continental shelf and an oceanographic scenario determined by the collision of the Brazil and the Malvinas/Falkland megacurrents, which a produce ...
Environmental drivers of plant community assembly in Isla de los Estados at Southern Atlantic Ocean
(Akadémiai Kiadó, 2018-06)
The comprehensive assessment of environmental gradients influencing species assemblages is important for implementing new conservation strategies under climate change. This study aims to determine the multi-scale effect ...
Population structure, phylogeography, and genetic diversity of the common bottlenose dolphin in the tropical and subtropical southwestern Atlantic Ocean
(Oxford University Press, 2019)
O objetivo deste estudo foi avaliar o nível de variabilidade genética e a estrutura populacional do golfinho-nariz-degarrafa
(Tursiops truncatus) das porções tropical e subtropical do Oceano Atlântico Sul Ocidental e ...
Ocean-atmosphere processes and easterly waves in the generation and development of extreme events in the Eastern Northeast of Brazil
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Oceanografia, 2019)