The Nutritional Value of Five Species of Microalgae for Spat of the Silver-Lip Pearl Oyster, Pinctada maxima (Jameson) (Mollusca: Pteriidae)

J J Taylor; Paul C Southgate; M S Wing; R A Rose

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The Nutritional Value of Five Species of Microalgae for Spat of the Silver-Lip Pearl Oyster, Pinctada maxima (Jameson) (Mollusca: Pteriidae)

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The Nutritional Value of Five Species of Microalgae for Spat of the Silver-Lip Pearl Oyster, Pinctada maxima (Jameson) (Mollusca: Pteriidae)

J J Taylor, Paul C Southgate, M S Wing and R A Rose

Asian Fisheries Science, Vol.10(1), pp.1-8

1997

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Abstract

Zoology

Fisheries Sciences

A feeding trial was conducted to assess the nutritional value of five monospecific microalgal diets for spat of the silver-lip (or gold-lip) pearl oyster, Pinctada maxima. The five species tested were Isochrysis aff. Galbana (T-ISO), Pavlova lutheri, Chaetoceros muelleri, Chaetoceros calcitrans and Tetraselmis suecica. Spat were 75-d okod at the start of the growth trial which ran for 21 d. Pearl oyster spat fed C. muelleri showed the largest increase in ash-free dry weight (organic content), which was significantly greater (P<0.05) than for any other species. The mean ash-free dry weight (AFDW) of spat fed T. suecica and T-ISO did not differ significantly from each other, but were significantly greater than for spat fed C. calcitrans and P. lutheri (P>0.05). The final AFDW of spat fed P. lutheri was not significantly different from that on unfed spat (P>0.05). Differences in the food value of the five species of algae could not be explained by their reported nutrient composition alone. The results illustrate the importance of experimental testing of algal diets for bivalve spat rather than sole reliance on published nutritional values.

Details

Title: The Nutritional Value of Five Species of Microalgae for Spat of the Silver-Lip Pearl Oyster, Pinctada maxima (Jameson) (Mollusca: Pteriidae)
Authors: J J Taylor (Author) - James Cook University
Paul C Southgate (Author) - James Cook University
M S Wing (Author) - Pearl Oyster Propagators Pty Ltd, NT
R A Rose (Author) - Pearl Oyster Propagators Pty Ltd, NT
Publication details: Asian Fisheries Science, Vol.10(1), pp.1-8
Publisher: Asian Fisheries Society
Date published: 1997
ISSN: 0116-6514
Organisation Unit: 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: 99450064302621
Output Type: Journal article

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