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Dietary effects on egg production, egg‐hatching rate and female life span of the tropical calanoid copepod A cartia bilobata
Author(s) -
Pan YenJu,
Souissi Sami,
Souissi Anissa,
Wu ChengHan,
Cheng ShinHong,
Hwang JiangShiou
Publication year - 2014
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.12113
Subject(s) - biology , copepod , hatching , acartia , isochrysis galbana , acartia tonsa , aquaculture , tetraselmis , larva , zoology , ecology , crustacean , fishery , algae , fish <actinopterygii>
Copepods are crucial source of live feeds in the aquaculture industry. In particular, several species of the genus A cartia are considered optimal prey for fish larvae. The species A cartia bilobata has excellent potential for marine larvae culture, as it is easy for mass culture. This study investigated the effects of various algal diets on the egg production and egg‐hatching rate of A . bilobata . The results indicated that the single‐species diet I sochrysis galbana was the most supportive diet for A . bilobata egg production and female life span in all treatments (egg production: 23.85 ± 0.70 eggs female −1 day −1 and female life span: 18.00 ± 1.45 days). N annochloropsis oculata and T etraselmis chui treatments gave markedly lower egg production and female life span as both single‐species and multiple‐species diets. For the egg hatching‐rate experiment, except for the T . chui treatment, which yielded a considerably lower hatching rate than the other diets, the hatching rate was only slightly affected by the algal diets. These results confirm that A . bilobata, a tropical brackish‐water copepod species, develops rapidly at 28°C and can produce a large number of eggs; therefore, it has considerable potential for larvae culture.