Isolation of Australian microalgae and preparation of microalgal concentrates for use as aquaculture feeds ...
In this study, two types of microalgal feed were examined; 1) algal concentrates and 2) new Australian microalgae. Algal concentrates were examined because for aquaculturists, they could provide an off-the-shelf alternative to maintaining live algal cultures. Australian microalgae were examined to i...
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| Format: | Thesis |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/23228618 https://figshare.utas.edu.au/articles/thesis/Isolation_of_Australian_microalgae_and_preparation_of_microalgal_concentrates_for_use_as_aquaculture_feeds/23228618 |
| Summary: | In this study, two types of microalgal feed were examined; 1) algal concentrates and 2) new Australian microalgae. Algal concentrates were examined because for aquaculturists, they could provide an off-the-shelf alternative to maintaining live algal cultures. Australian microalgae were examined to identify new feed species and to determine specific dietary requirements of local juvenile Pacific oysters (Crassostrea gigas). Ten diatoms, microalgae widely cultivated as feed for aquaculture species, were isolated and purified from local waters, Tasmania, Australia. Proximate analysis of logarithmic and stationary phase cultures showed major differences between species and in the effect of stationary phase on composition. Four species (Attheya septentrionalis, Entomoneis cf. punctulata, Extubocellulus spinifera and Thalassiosira oceanica) were evaluated as feed for juvenile Pacific oysters. Fed as the major component in a ternary algal diet, two algae (Attheya septentrionalis and Entomoneis cf. punctulata) ... |
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