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| Almeida,Marcelo Nocelle de; Bessa,Elisabeth Cristina de Almeida. |
| Biological aspects of Bradybaena similaris (Férussac, 1821) were studied, such as: onset of sexual maturity, occurrence of self-fertilization, oviposition, incubation period, eclosion rate and shell length measurement at different stages of development. It was noted that in isolated B. similaris the minimum and maximum time for reaching sexual maturity were 109 and 180 days, respectively. When kept in groups, the minimum time was 78 days. The occurrence of self-fertilization was observed in 18.4% of specimens. The total number of eggs per oviposition varied from one to 38 (average: 3,5 ± 7,15), the total number of eggs per mollusc varied from one to 39 (average: 7,0 ± 10,21) and the total number of oviposition per mollusc varied form one to six (averege:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradybaena similaris; Biology; Growth; Reproduction. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400010 |
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| Lira,Claudia R.S. de; Gomes,Edna M.; Chagas,Generoso M.; Pinheiro,Jairo. |
| The total protein and ammonia contents in the hemolymph of Bradybaena similaris (Fèrussac, 1821) during the starvation were determined from August, 1996 to March, 1998. The results revealed a significant variation in the total protein content throughout the period of starvation analized, there being a negative relation between the total protein content and the time of starvation. But the same result was not observed in the ammonia content. After 30 days of starvation there was a reduction of 2,8% of the content of ammonia in the hemolymph. A negative relation between the ammonia content and the time of starvation was observed, but this relation was not significative. It is probable that the degradation of the proteins don't lead to an increase of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradybaena similaris; Ammonium; Nitrogenous products; Starvation; Total proteins. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000400003 |
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| Bruschi-Figueiró,Gisela; Veitenheimer-Mendes,Inga L.. |
| Horticultural production areas are favorable to development and maintenance of land mollusks populations. To know the mollusk fauna diversity in that kind of production area a research project was conduced in a rural-urban district of Porto Alegre, Rio Grande do Sul, Brazil. The production property studied is located in the Southern zone of the city and has 17 ha of cultivated area. The sampling period was from August/2000 to August/2001, with monthly quantitative collects on the different culture production beds previously selected. Six taxa were registered: Deroceras leave (Müller, 1774) (1.389 specimens = 82,82%), Bradybaena similaris (Férussac, 1821) (195 specimens = 11,7%), Succinea meridionalis d'Orbigny, 1846 (82 specimens = 4,9%), Lamellaxis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deroceras laeve; Bradybaena similaris; Landshells; Horticulture; Porto Alegre. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600003 |
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