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Effects of single and combined microalgae on larval growth, development and survival of the commercial sea cucumber Holothuria spinifera Theel
Author(s) -
Asha P S,
Muthiah P
Publication year - 2006
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2005.01396.x
Subject(s) - isochrysis galbana , biology , tetraselmis , larva , algae , botany , hatchery , zoology , auricularia , fishery , fish <actinopterygii>
The results of the study on the suitable algal feed for the mass rearing of holothurian larvae through hatchery system are presented. Auricularia larvae, after 48 h of fertilization, obtained from induced spawning of Holothuria spinifera , were fed with different algae Isochrysis galbana, Nanochloropsis salina , Pavlova lutheri , Tetraselmis chuii and Chaetoceros calcitrans as well as I. galbana+C. calcitrans to ascertain the effect of single and combined microalgal diet. The rate of feeding was 2 × 10 4 cells larvae –1 day –1 for a period of 9–12 days. The growth rate of 59 μm day −1 with 90% and 43 μm day −1 with 100% occurrence of late auricularia in the larvae fed with C. calcitrans alone and I. galbana+C. calcitrans , respectively, indicated that C.calcitrans itself or in combination with I. galbana is the effective feed for the larvae of H. spinifera .