Results 101 to 110 of about 6,035 (208)

Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

open access: yesNeotropical Ichthyology
Cetengraulis edentulus is a broadely distributed engraulid in Southwest Atlantic, currently accounting for the main fish species commercially exploited at Guanabara Bay, Brazil. This study aimed to extend the knowledge on reproduction of C.
Ana Clara Sampaio Franco   +3 more
doaj   +1 more source

Análise dos Foraminíferos Bentônicos de Dois Testemunhos na Região Nordeste da Baía de Guanabara. [PDF]

open access: yesAnuário do Instituto de Geociências, 2007
Guanabara bay receives a large amount of industrial and domestic sewage, which contributes for its environmental degradation. For monitoring those environmental changes, two cores from the northeastern area of the bay were analized.They were subsampled ...
Raquel Batista Medeiros da Fonseca   +3 more
doaj  

Dynamic of decapod crustacean larvae on the entrance of Guanabara bay

open access: yesBrazilian Archives of Biology and Technology, 2002
In the present study, we observed seasonal variations in the density of decapod larvae as well as changes in density related to diurnal and tidal cycles. Among the decapod larvae collected, portunids and grapsids were the most abundant, especially during
Lohengrin Dias de Almeida Fernandes   +2 more
doaj   +1 more source

Mesozooplankton grazing under conditions of extreme eutrophication in Guanabara Bay, Brazil [PDF]

open access: yesJournal of Plankton Research, 2004
The objective of the present study was to quantify mesozooplankton grazing in the eutrophic waters of Guanabara Bay. Mesozooplankton (>200 m) was dominated by the copepods Acartia lilljeborgi, Acartia tonsa, Parvocalanus crassirostris and Paracalanus furcatus.
openaire   +1 more source

Zoneamento Ambiental da Baía de Guanabara [PDF]

open access: yesAnuário do Instituto de Geociências, 2003
The paper presents a proposition for the Guanabara Bay Environmental Zoning , which aims to contribute for its sustainable management. The methodology was developed in three analytical scales: a strategical conception of human settlement, a logistic ...
Claudio Antônio G. Egler   +4 more
doaj  

Estimating the chlorophyll content in the waters of Guanabara Bay from the LANDSAT multispectral scanning digital data [PDF]

open access: yes
Detection of water quality in Guanabara Bay using multispectral scanning digital data taken from LANDSAT satellites was examined. To test these processes, an empirical (statistical) approach was choosen to observe the degree of relationship between ...
Bentancurt, J. J. V.   +3 more
core   +1 more source

Influence of oxygenation and quality of sediment on the survival of Scolelepis chilensis (Spionidae: Polychaeta) in Guanabara Bay, Rio de Janeiro

open access: yesBiotemas, 2013
This study aimed to evaluate the tolerance of the polychaete Scolelepis chilensis to variation in oxygenation and sediment to obtain data for environmental impact studies. Individuals were collected at Flamengo Beach, Rio de Janeiro.
Evelyn Machado Silva   +2 more
doaj  

Collection of relevant results obtained with the ERTS-1 satellite images by the Institute for Space Research (INPE), volume 1 [PDF]

open access: yes
There are no author-identified significant results in this ...
Amaral, G.   +2 more
core   +1 more source

century-old fishery in Guanabara bay, Rio de Janeiro, Brazil

open access: yesEthnobiology and Conservation
Guanabara Bay is an important estuary on the South American coast, both for its ecological role, still sustaining the most diverse estuarine fish fauna in Brazil, and for being inserted in the one of world’s largest metropolitan areas, suffering a historic process of hypereutrophication. The fish weir (FWR), an artisanal fishing practiced for centuries,
Sérgio Ricardo Santos   +4 more
openaire   +1 more source

Processing multispectral data obtained by orbital platforms of the LANDSAT series for studies of water quality in Guanabara Bay [PDF]

open access: yes
The relationship existing between Guanabara Bay water quality ground truth parameters and LANDSAT MSS video data was investigated. The parameters considered were: chorophyll content, water transparency usng the Secchi disk, salinity, and dissolved ...
Dejesusparada, N., Verdesio, J. J.
core   +1 more source

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