The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs

The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs

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 tr...

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Main Authors: N. E. T. ROJAS, M. A. MARINS, O. ROCHA
Format: Article
Language:English
Published: Instituto Internacional de Ecologia
Series:Brazilian Journal of Biology
Subjects:
Moina micrura
ephippia
encysted embryos
abiotic factors
egg hatching
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000300005&lng=en&tlng=en
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spelling doaj-1c4dfc5136414a3a85fbcb00e97a57f62020-11-24T21:16:03ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437561337137610.1590/S1519-69842001000300005S1519-69842001000300005The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggsN. E. T. ROJAS0M. A. MARINS1O. ROCHA2Instituto de PescaUniversidade Federal de São CarlosUniversidade Federal de São CarlosThe 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.L<FONT FACE=Symbol>-</FONT>1 of selected salts) had no effect.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000300005&lng=en&tlng=enMoina micruraephippiaencysted embryosabiotic factorsegg hatching
collection DOAJ
language English
format Article
sources DOAJ
author N. E. T. ROJAS
M. A. MARINS
O. ROCHA
spellingShingle N. E. T. ROJAS
M. A. MARINS
O. ROCHA
The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
Brazilian Journal of Biology
Moina micrura
ephippia
encysted embryos
abiotic factors
egg hatching
author_facet N. E. T. ROJAS
M. A. MARINS
O. ROCHA
author_sort N. E. T. ROJAS
title The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
title_short The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
title_full The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
title_fullStr The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
title_full_unstemmed The effect of abiotic factors on the hatching of Moina micrura Kurz, 1874 (Crustacea: Cladocera) ephippial eggs
title_sort effect of abiotic factors on the hatching of moina micrura kurz, 1874 (crustacea: cladocera) ephippial eggs
publisher Instituto Internacional de Ecologia
series Brazilian Journal of Biology
issn 1678-4375
description 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.L<FONT FACE=Symbol>-</FONT>1 of selected salts) had no effect.
topic Moina micrura
ephippia
encysted embryos
abiotic factors
egg hatching
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000300005&lng=en&tlng=en
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