Premium
Developmental stages, larval and post‐larval growth of angelwing clam Pholas orientalis
Author(s) -
Ng Beewah,
Tan Aileen Shau Hwai,
Yasin Zulfigar
Publication year - 2009
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.1365-2109.2009.02177.x
Subject(s) - biology , metamorphosis , spawn (biology) , larva , isochrysis galbana , human fertilization , fishery , zoology , ecology , anatomy
Angelwing clam were induced to spawn by thermal stimulation. Mature eggs measured 50 μm in diameter. Cell division occurred within 36 min after fertilization. Mobile trochophore larvae were seen after 12 h and larvae developed within 18 h. Reared on a diet of Isochrysis galbana the larvae reached the umbo stage in 6–7 days. On day 10 the foot could be seen and settlement occurred if a suitable substrate was present. The larvae completed metamorphosis into juveniles within 20 days after settling.