This paper evaluated the chemoprotective effect of lipoic acid (LA) against microcystin (MC) toxicity in carp Cyprinus carpio. To determine the LA dose and the time necessary for the induction of three different classes ...

The effects of temperature and pH during extraction of toxin(s) from the cyanobacterial genus Anabaena were studied. Different extracts were compared for their anticholinesterase potency against purified eel acetylcholinesterase. ...

A study on the bacterioplankton of Conceição Lagoon (27°34′ S–48°27′ W), Southern Brazil, was carried out in July 2005 (austral winter) and January 2006 (austral summer) to characterize the bacterial spatiotemporal ...

A long-term study (monthly sampling, 1992 to 2007) was conducted in the surf zone of Cassino Beach, Southern Brazil, in order to detect possible natural and/or anthropogenic disturbances. Surface water temperature (6– 29°C) ...

O pampo Trachinotus marginatus é uma espécie com potencial para piscicultura, mas a sua utilização pode ser limitada pelas variações de salinidade comuns em estuários ou em ambientes super-salinos. Este trabalho foi realizado ...

Fêmeas ovígeras de Caligus sp. foram coletadas em juvenis do linguado Paralichthys orbignyanus (Valenciennes, 1839) capturados na Praia do Cassino (Rio Grande – RS) e mantidos em cativeiro no Laboratório de Maricultura ...

Broodstock of the Brazilian flounder Purulichthys orbignyunus (Valenciennes, 1839) kept in the laboratory suffered recurrent heavy infestations by the ectoparasitic dinoflagellate Amyloodinium cf. ocellutum. Between 10 ...

Nitrogenous compounds can be toxic to aquatic animals especially when they are reared at high stocking densities. Cobia (Rachycentron canadum) is a fast growing fish currently reared in cages, but with expanding production ...

As dificuldades encontradas na alimentação de larvas e juvenis de peixes limitam o sucesso da piscicultura marinha. Portanto, este estudo foi realizado com o intuito de avaliar os efeitos de diferentes freqüências alimentares ...

The marine “pejerrey” Odontesthes argentinensis is a valuable marine fish resource in Southern South America, and its culture is considered promising. Several aspects related to the culture of O. argentinensis have been ...

Este estudo teve como objetivos avaliar os efeitos de diferentes taxas de 8 arraçoamento sobre a sobrevivência e o crescimento de juvenis do peixe-rei (Odontesthes 9 argentinensis). Juvenis de peixe-rei (100mg)foram ...

A geoquímica de paisagem é um ramo das ciências geográficas, criado e desenvolvido na Rússia no século XX, que estuda a paisagem no nível dos elementos químicos. Possui sua classificação hierárquica que inclui parâmetros ...

The employment of local soils for extraction of metallic elements was evaluated through batch tests to treat wastewaters generated in a petroleum refinery plant in southern Brazil. Clay and organic carbon content and clay ...

The vine-growing areas in Brazil are the dampest in the world. Copper maximum value registered in this study was as much as 3200 mg kg_1, which is several times higher than reported for vineyard soils in temperate climates. ...

The diatom Palmerina hardmaniana (Greville) Hasle presents a wide geographical distribution in neritic tropical and subtropical regions. In the present work we analyzed plankton samples collected monthly between 1995 and ...

Biofloc rearing media provides a potential food source for shrimp reared in limited or zero water exchange systems. This culture system is environmentally friendly as it is based on limited water use and minimal effluent ...

In situ benthic flux chamber experiments were performed during late austral spring and early summer of 1996 at eleven nearshore locations in the southern Patos Lagoon, Brazil. The Patos Lagoon is the largest lagoonal system ...

The Ebro river flows to the Mediterranean coast of Spain. During its final stretch, the Ebro behaves ina similar way to a highly stratified estuary. This paper describes the transport of nutrients to the Ebro estuary, ...

The analysis of suspended particles probably provides the best basis for assessing metal contamination of aquatic environments. However, such assessments cannot be made unless suf®cient knowledge of natural contributions ...

Nutritional values of microbial floc meal and soy protein concentrate were evaluated as alternative protein sources to fishmeal in diets for Litopenaeus vannamei juveniles. A feeding trial was conducted during 28 days to ...