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| LACERDA,L. D.; PARAQUETTI,H. H. M.; MARINS,R. V.; REZENDE,C. E.; ZALMON,I .R.; GOMES,M. P.; FARIAS,V.. |
| We present here the first results of Hg concentrations in three small shark species (Rhizoprionodon lalandei, R. porosus and Mustelus higmani) from the SE Brazilian coast. Mercury concentrations in R. lalandei ranged from 21.5 to 280.0 ng.g-1 dry weight (d.w.) (average 74.6 ng.g-1 d.w.; 17.9 ng.g-1 wet weight). In R. porosus, concentrations ranged from 7.6 to 90.5 ng.g-1 d.w. (average 42.2 ng.g-1 d.w., 9.4 ng.g-1 wet weight), whereas in M. higmani, concentrations ranged from 13.0 to 162.8 ng.g-1 d.w. (average 54.9 ng.g-1 d.w., 13.4 ng.g-1 wet weight). These concentration ranges are very low compared with values reported for other large shark species of the Southwestern Atlantic Ocean. There was a significant positive correlation between Hg concentrations... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mercury; Sharks; Biomagnification; SE Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400005 |
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| Hoogmoed, M.S.. |
| A collection of snakes and frogs collected in the area of Porto Real, Rio de Janeiro State, Brazil, was bought in December 1890 and remained unidentified until now. The collection comprises 100 snakes belonging to 18 species and 152 frogs belonging to 19 species. A comparison with the herpetofauna from nearby Serra do Japi in São Paulo is made. General remarks on variation and identification are made for a number of species. Among the snakes were two specimens of Cercophis aurata (Schlegel, 1837), a species described on the basis of one specimen from Suriname, and no new specimens having been recorded until now. The new individuals cause the known area of distribution to be greatly enlarged, but such a large distribution area occurs in several other snakes... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Ophidia; Cercophis auratus; Sauria; Amphibia; Anura; Inventory; Distribution; SE Brazil; Suriname; 42.82. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/318387 |
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