| Autor: |
Agnès Bardon-Albaret, Eric Saillant |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Aquaculture Reports, Vol 7, Iss C, Pp 48-56 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2352-5134 |
| DOI: |
10.1016/j.aqrep.2017.05.004 |
| Popis: |
The quality of red snapper eggs is highly variable and unpredictable in aquaculture, leading to high mortality during early larval rearing. In this work, the viability of red snapper eggs was monitored from fertilization until unfed larvae expired because of exhaustion of vitelline reserves to determine egg quality traits in this species. The spawns were obtained via strip spawning wild-caught females following hormonal induction with chorionic gonadotropin. Females were induced immediately after capture (wild group, n = 17) or held captive for the entire maturation period prior to induction (captive group, n = 7). Candidate predictors of egg quality measured on the female parent at the time of induction or on the spawn at ovulation were evaluated using correlation and multiple regression analysis. The fertilization rate, the hatching rate, and the duration of survival of unfed larvae post hatch were weakly correlated to each other (-0.23 |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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