The Weddell Sea is one of the key regions of the Southern Ocean with respect to climate as most of the Antarctic Bottom Water (AABW) that occupies the world ocean deepest layers is likely to originate from this region. ...

We describe the seasonal and interannual variability of volume transports in Weddell and Ross Seas using the 1/12◦20-yr simulation of the OCCAM global ocean general circulation model. The average simulated full-depth ...

Este artigo descreve e compara a ictiofauna de zonas rasas de duas lagunas costeiras (lagoa do Peixe, no Brasil e laguna Mar Chiquita, na Argentina). A lagoa do Peixe foi amostrada entre 2000 e 2001 com rede de arrasto ...

This study analyzes the spatiotemporal variation of the ichthyofauna of the surf zone of Praia do Cassino, municipality of Rio Grande (state of Rio Grande do Sul, Brazil) from October 2005 to September 2006. Fishes were ...

This note reports the first occurrence of golden mussel Limnoperna fortunei (Dunker, 1857) colonizing (biofouling) the surface body of the anomuran crab Aegla platensis Schmitt, 1942 on the São Gonçalo channel, Mirim ...

The diet and foraging strategy of juvenile Menticirrhus americanus (Linnaeus, 1758) and Menticirrhus littoralis(Holbrook, 1847) were studied, testing the existence of trophic overlap between these species and within different ...

The communication between the Patos and Mirim lagoon systems occurs via a natural channel called São Gonçalo. In 1977, a dam was built in this channel to prevent entrance of saline waters from Patos Lagoon estuary into ...

The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater ...

The Plata pompano, Trachinotus marginatus (Cuvier, 1832), is an endemic carangid of the Southwestern Atlantic Ocean, occurring from Rio de Janeiro to Uruguay. This study describes the reproductive period, spawning type, ...

Fish conservation in South America is a pressing issue. The biodiversity of fishes, just as with all other groups of plants and animals, is far from fully known. Continuing habitat loss may result in biodiversity losses ...

This study presents the composition of species, the distribution and dominance patterns, and the structure of sizes of the assemblage of fish in distinct habitats (littoral, deeper and near shore limnetic zone) of the ...

We test the hypothesis that predatory benthic fishes play a similar ecological role in different estuaries by displaying the same feeding strategy. We used whitemouth croaker (Micropogonias furnieri) populations in four ...

A garoupa-verdadeira Epinephelus marginatus (Lowe, 1834) é um peixe marinho associado a fundos rochosos que habita águas costeiras, particularmente em costões rochosos e recifes de corais. Essa espécie possui um papel ...

Jenynsia multidentata (Jenyns, 1842) is a viviparous fish found year-round in the estuary zone of Patos Lagoon and represents one of the dominant species in its shallow areas. Although biological and ecological aspects of ...

Ontogenetic diet changes (prey species richness and size) in juveniles of white sea catfish (Genidens barbus) were tested in three southern Brazilian estuaries: Mampituba (298120S), Tramandaı´ (308020S), Chuı´ (338440S). ...

Jenynsia multidentata (Jenyns, 1842) is a viviparous fish found year-round in the estuary zone of Patos Lagoon and represents one of the dominant species in its shallow areas. Although biological and ecological aspects of ...

Based on biological and meteorological long-term database (1979-1983 and 1996-2000), we analyzed the variation in the juvenile recruitment and artisanal fishery landings of the mullet (Mugil platanus) in the Patos Lagoon ...

Plâncton é o conjunto de organismos, geralmente microscópicos, que vivem em suspensão na água de praticamente, todos os ambientes aquáticos. Estes organismos apresentam capacidade de locomoção muito baixa, algumas vezes ...

Zooplâncton é a comunidade de organismos, exclusivamente heterotróficos, e de diferentes categorias taxonômicas, que tem capacidade muito baixa ou quase nula de locomoção, de tal forma que sua distribuição está relacionada ...

O presente trabalho visou avaliar a capacidade reprodutiva, germinação, sobrevivência bem como o estabelecimento de plântulas de H. bonariensis. Foram coletadas aleatoriamente 60 inflorescências, as sementes foram separadas ...