Establishing larval feeding regimens for the decorator crab <i>Camposcia retusa</i> : Effects of live prey types and density on larval survival and development
نویسندگان
چکیده
Decorator crab Camposcia retusa is a popular marine ornamental species; however, it has never been bred previously. To establish feeding regime for C. larvae, which include two zoeal and megalopal stage, three experiments were conducted. In all experiments, ≥60% of unfed 1st (Z1) larvae survived to the next combined with orange guts observed in fed Artemia, suggesting Z1 are facultative lecithotrophic. Experiment 1 evaluated suitability ss-type rotifer Brachionus rotundiformis as prey. at density from 0 90 ind./ml. There was no significant difference survival among treatments (56.7–68.3%, p > 0.05); therefore, considered an unsuitable prey larvae. 2 examined optimal Artemia nauplii, co-feeding copepod Pavocalanus crassirostris larval rearing. The 10 Artemia/ml had highest megalopae (91.3 ± 3.1%, < 0.05). However, high mortality occurred megalopae, resulting poor stage (1.3%–12.5%) (p Meanwhile, copepods showed significantly inferior development when compared that treatment. 3 effects enrichment on performance. results suggested did not improve or development. Based our results, nauplii ind./ml throughout appears be appropriate retusa.
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ژورنال
عنوان ژورنال: Aquaculture Research
سال: 2022
ISSN: ['1355-557X', '1365-2109']
DOI: https://doi.org/10.1111/are.15792