The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
Braz. j. biol
; Braz. j. biol;61(3): 371-376, Aug. 2001. tab, graf
Article
em En
| LILACS
| ID: lil-305143
Biblioteca responsável:
BR1.1
RESUMO
The roles of some abiotic factors in controlling the hatching rates of Moina micrura ephippial eggs were investigated. Determination of optimum hatching conditions would be important in developing the use of this species as a food for fish larvae in aquaculture. Ephippia were exposed to different treatments in the laboratory, and monitored for hatching over a period of seven days. Optimum hatching conditions were pH 5-9, temperature 25ºC, photoperiod eight or more hours light per day and light intensity equal to or greater than 850 lux. Differences in water ionic concentrations (from deionized water to 880 mg.LFACE="Symbol">-1 of selected salts) had no effect
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Óvulo
/
Crustáceos
Limite:
Animals
Idioma:
En
Revista:
Braz. j. biol
Assunto da revista:
BIOLOGIA
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil