Campo DC | Valor | Idioma |
dc.contributor.author | Santos, Antonia Euflosina dos | - |
dc.contributor.author | Nascimento, Iracema Andrade | - |
dc.creator | Santos, Antonia Euflosina dos | - |
dc.creator | Nascimento, Iracema Andrade | - |
dc.date.accessioned | 2013-02-21T13:40:48Z | - |
dc.date.available | 2013-02-21T13:40:48Z | - |
dc.date.issued | 1985 | - |
dc.identifier.issn | 0044-8486 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/8609 | - |
dc.description | Texto completo. Acesso restrito. p. 335-352 | pt_BR |
dc.description.abstract | DOS Santos, A.E. and Nascimento, I.A., 1985. Influence of gamete density, salinity and
temperature on the normal embryonic development of the mangrove oyster Crassostr’za
rhizophorae Guilding, 1828. Aquaculture, 47: 335-352.
Laboratory experiments were undertaken to determine the optimal environmental
conditions and some of the other factors concerned in the development of Crassostrea
rhizophorae embryos.
Critical variables such as the number of spermatozoa per ovocyte during fertilization,
the time of fertilization after gamete liberation, egg density, temperature and salinity
were mlated to the proportion of normal D-larvae of C. rhizophorae in the resulting
broods
The highest proportion of normal D-larvae was obtained at concentrations of 500-
5000 spermatozoa/ovocyte, under conditions of 25”/,, salinity at 25 + 1°C. The optimal
density of eggs, for the production of normal D-larvae, was 104-4 X lo* ovocytes/l. If
fertilization was delayed for more than 45 min after liberation of spermatozoa the proportion
of normal D-larvae was greatly reduced. The experiments demonstrated that the
temperature for developing embryos should be below 30°C. At 20 and 25°C there was a
high proportion of normal D-larvae 24 h after fertilization. The ideal salinity for embryonic
development in C. rhizophorae was 25-37’/,,,,. Below a salinity of 16’/,,, less than
2.5% 01; the D-larvae were normal. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Aquaculture | pt_BR |
dc.source | http://dx.doi.org/10.1016/0044-8486(85)90219-4 | pt_BR |
dc.title | Influence of gamete density, salinity and temperature on the normal embryonic development of the mangrove oyster Crassostrea rhizophorae Guilding, 1828 | pt_BR |
dc.title.alternative | Aquaculture | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.localpub | Salvador | pt_BR |
dc.identifier.number | v. 47, n. 4 | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (Biologia)
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