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The food preference of the tropical topshell, Trochus niloticus fed on algae from Darwin Harbour

Lambrinidis, G, Luong-Van, JT and Renaud, SM (1997). The food preference of the tropical topshell, Trochus niloticus fed on algae from Darwin Harbour. In: Trochus: Status, Hatchery Practice and Nutrition Workshop, Darwin, 6-7 June 1996.

Document type: Conference Paper
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Author Lambrinidis, G
Luong-Van, JT
Renaud, SM
Title The food preference of the tropical topshell, Trochus niloticus fed on algae from Darwin Harbour
Conference Name Trochus: Status, Hatchery Practice and Nutrition Workshop
Conference Location Darwin
Conference Dates 6-7 June 1996
Place of Publication Canberra
Publisher ACIAR
Publication Year 1997
Start Page 104
End Page 108
HERDC Category E2 - Conference Publication - Full written paper, non refereed proceedings (internal)
Abstract Food preference of adult trochus, Trochus niloticus L., was investigated by estimating the feeding index and food consumption for ten species of seaweeds (Halimeda borneensis, Symploca sp., Dictyota ciliolata, Padina australis, Padina boryana, Rosenvingea nhatrangensis, Sargassum sp., Acanthophora muscoides, Tolypiocladia glomerulata and Hypnea sp.) and a mixed microalgal diet. It was found that trochus ate larger amounts of the soft filamentous forms (e.g. Symploca sp., Hypnea sp., and Tolypiocladia glomerulata ) and the corticated Acanthophora muscoides than the leathery brown algae (Rosenvingea nhatrangensis, Sargassum sp. and Padina spp.) and the calcareous green algae (Halimeda borneensis). When food preference was expressed as feeding indices, it was found that there was no correlation between structural characteristics of the diets and feeding index. The mixed microalgal diet scored the highest index.
 
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