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Registros recuperados: 23 | |
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Mantelatto,Fernando L. M.; Souza-Carey,Marisa M.. |
This work characterizes the composition of Brachyura from Schizoporella unicornis. The samples were collected in 1995 at Itaguá Beach, Ubatuba (SP), at three month intervals, during all seasons from January to December. The Bryozoa colonies were obtained by snorkeling at a depth of five meters in daylight. A total of 323 specimens were collected from four families (Xanthidae, Portunidae, Majidae and Grapsidae). Pachygrapsus transversus, Hexapanopeus schimitti, and Menippe nodifrons occurred in all seasons. The highest and lowest number of individuals occurred during the spring and autumn, respectively. Xanthidae exhibited the highest density during the summer, autumn, and spring, while Grapsidae exhibited the highest density in winter. It was noted the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyuran; Bryozoan; Check list; Crabs; Schyzoporella. |
Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000200007 |
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Rodríguez,E.M.; Bigi,R.; Medesani,D.A.; Stella,V.S.; Greco,L.S.L.; Moreno,P.A.R.; Monserrat,J.M.; Pellerano,G.N.; Ansaldo,M.. |
Whole body oxygen consumption and some hemolymph parameters such as pH, partial pressure of gases, level of ions and lactate were measured in the estuarine crab Chasmagnathus granulata after both acute (96 h) and chronic (2 weeks) exposure to cadmium at concentrations ranging from 0.4 to 6.3 mg/l. In all instances, the crabs developed hemolymph acidosis, but no respiratory (increased PCO2) or lactate increases were evident. Hemolymph levels of sodium and calcium were always increased by cadmium exposure. The chronic toxicity of cadmium was enhanced at 12 salinity, even causing a significantly higher mortality in comparison with the higher salinity (30) used. A general metabolic arrest took place at 12 salinity in the crabs chronically exposed to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cadmium; Crabs; Blood homeostasis; Salinity. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000400011 |
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Registros recuperados: 23 | |
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