<b>Dioxins and polychlorinated biphenyls concentrations in <i>Larus dominicanus</i>. Case study: Marambaia island, Sepetiba bay, Rio de Janeiro State, Brazil</b> - doi: 10.4025/actascibiolsci.v35i3.18344

During the period from 2001 to 2002, we examined samples of water and sediment from five stations in Sepetiba Bay, located in the south region of Rio de Janeiro state, Brazil. We identified 32 species of ciliate protists representing seven classes: Karyorelictea, Heterotrichea, Spirotrichea, Litostomatea, Phyllopharyngea, Protostomatea and Oligohymenophorea. Among the Spirotrichea, we discovered Pseudokeronopsis sepetibensis n. sp., characterized by a unique combination of three features: 3 contractile vacuoles, an inconspicuous mid-ventral row, and 4 5 frontoterminal cirri. It showed yellow-greenish coloration and elongated body outline (100 140 m x 20 26 m). On average, there were 44 adoral membranelles, 50 left marginal cirri, 48 right marginal cirri and 41 mid-ventral cirri disposed in a straight row past the level of the oral region. Other features include 4 frontoterminal cirri and a constant number of 3 transverse cirri; 8 frontal cirri (4 anterior and 4 posterior arranged as an atypical bicorone).

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Crustaceans composition in sandy beaches of Sepetiba Bay, Rio de Janeiro, Brazil

Check List ◽

10.15560/11024 ◽

2011 ◽

Vol 7 (6) ◽

pp. 778 ◽

Cited By ~ 3

Author(s):

Ricardo S. Cardoso ◽

Felipe Meireis ◽

Gustavo Mattos

Keyword(s):

Spatial Distribution ◽

Rio De Janeiro ◽

Sandy Beaches ◽

Southeastern Brazil ◽

Sepetiba Bay ◽

Main Species ◽

Janeiro State ◽

Made In

A crustacean survey was made in Sepetiba bay, Rio de Janeiro state, southeastern Brazil. Twelve sandy beaches were sampled on five islands in this embayment. A total of 3024 individuals were collected, belonging to 21 species, which are grouped in 16 families, seven infraorders, seven suborders, and four orders. Isopods, followed by amphipods and tanaids, showed the highest abundance, amounting to over 92% of the dominance of crustaceans. The main species were Excirolana armata, Excirolana braziliensis (isopods), Atlantorchestoidea brasiliensis (amphipod), and Monokalliapseudes schubarti (tanaid), which together accounted about 80% of crustaceans of the beaches studied. Excirolana braziliensis had the highest frequency. The majority of species found are typical of sandy beaches, with large spatial distribution.

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Natural breeding sites of phlebotomine sand flies (Diptera: Psychodidae) on Marambaia Island, Rio de Janeiro State, Brazil

Acta Tropica ◽

10.1016/j.actatropica.2014.04.008 ◽

2014 ◽

Vol 136 ◽

pp. 104-107 ◽

Cited By ~ 6

Author(s):

T.L. Souza ◽

F.B. Figueiredo ◽

A.B. Almeida ◽

C.V. Benigno ◽

C.S. Pontes ◽

...

Keyword(s):

Rio De Janeiro ◽

Sand Flies ◽

Phlebotomine Sand Flies ◽

Breeding Sites ◽

Natural Breeding ◽

Marambaia Island ◽

Janeiro State

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Assessment of heavy metals in Egretta thula: case study: Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842011000100012 ◽

2011 ◽

Vol 71 (1) ◽

pp. 77-82 ◽

Cited By ~ 2

Author(s):

AP Ferreira

Keyword(s):

Rio De Janeiro ◽

Geometric Mean ◽

Linear Regression Analysis ◽

Trophic Levels ◽

Sepetiba Bay ◽

Liver And Kidney ◽

Mean Differences ◽

Kidney Liver ◽

Egretta Thula

This study focuses on metals analysis in kidney and liver tissues of Egretta thula which were collected prostrate or newly dead in Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil, between March 2005 and October 2008. Kidney and liver were collected and analysed to evaluate heavy metal pollution. High values and widest range were detected for all metals in liver and kidney tissues. Geometric mean differences from metals concentrations for Zn, Cd, Ni, Pb, Cu, and Cr, respectively, were found in both organs. Results from linear regression analysis were non-significant in kidney (r = -0.79975, P = 0.10428), and in liver (r = -0.53193, P = 0.35618). With ANOVA analysis for metal accumulation differences (kidney*liver), at the 0.05 level, the results were significantly different (F = 33.17676, P = 0.00000; F = 12.47880, P = 0.00000). These results indicate that Sepetiba Bay shows worrying levels of metals in this study with E. thula, showing potential power of widespread biological and mutagenic adverse effects in trophic levels, and therefore, signalling risk to human health.

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