Assessment of the nutritional value of three species of tropical microalgae, dried Tetraselmis and a yeast-based diet for larvae of the blacklip pearl oyster, Pinctada margaritifera (L.)

Paul C Southgate; A C Beer; Peter F Duncan; R Tamburri

doi:10.1016/S0044-8486(98)00163-X

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Assessment of the nutritional value of three species of tropical microalgae, dried Tetraselmis and a yeast-based diet for larvae of the blacklip pearl oyster, Pinctada margaritifera (L.)

Journal article

Peer reviewed

Assessment of the nutritional value of three species of tropical microalgae, dried Tetraselmis and a yeast-based diet for larvae of the blacklip pearl oyster, Pinctada margaritifera (L.)

Paul C Southgate, A C Beer, Peter F Duncan and R Tamburri

Aquaculture, Vol.162(3-4), pp.247-257

1998

DOI: https://doi.org/10.1016/S0044-8486(98)00163-X

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Abstract

nutrition

microalgae

pearl oyster

pinctada

larvae

This paper reports on two experiments in which three species of tropical miroalgae, Isochrysis (T-ISO), Pavlova salina and Chaetoceros simplex, dried Tetraselmis suecica and a commercial yeast-based diet ('L-10', Microfeast®) were assessed for their nutritional value for larvae of the blacklip pearl oyster, Pinctada margaritifera. In the first experiment, T-ISO supported significantly greater growth of D-stage larvae than either Pav. salina, C. simplex or a ternary algal diet (TAD) composed of an equal mixture of the three species. Fifty percent of the mixed algal diet could be replaced with dried Tetraselmis without significantly affecting larval gorwth rate or survival. Indeed, growth of larvae fed a 1.1 mixture of TAD and dried Tetraselmis was significantly greater than that of larvae fed the three species of microalgae alone or the TAD. In the second experiment, umbo larvae were fed either the TAD, dried Tetraselmis, 'L-10' or 1.1 combinations of these diets. Survival of unfed larvae was significantly lower than that of fed larvae and larvae receiving food had significantly greater antero-posterior shell length than unfed controls. Larvae fed dried Tetraselmis were significantly larger than those fed 'L-10' but did not differ significantly in size from those fed the TAD. Larvae fed the 1.1 mixture of dried Tetraselmis and 'L-10' were significantly larger than those fed 'L-10' alone but significantly smaller than those fed dried Tetraselmis alone. The largest larvae at the end of Experiment 2 were those fed a 1:1 mixture of TAD and 'L-10' which were significantly larger than larvae fed the TAD.

Details

Title: Assessment of the nutritional value of three species of tropical microalgae, dried Tetraselmis and a yeast-based diet for larvae of the blacklip pearl oyster, Pinctada margaritifera (L.)
Authors: Paul C Southgate (Author) - James Cook University
A C Beer (Author) - James Cook University
Peter F Duncan (Author) - James Cook University
R Tamburri (Author) - James Cook University
Publication details: Aquaculture, Vol.162(3-4), pp.247-257
Publisher: Elsevier BV
Date published: 1998
DOI: 10.1016/S0044-8486(98)00163-X
ISSN: 0044-8486
Organisation Unit: Faculty of Science, Health, Education and Engineering; School of Science and Engineering - Legacy; Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449190202621
Output Type: Journal article

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