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| TITLE: |
Characterization of embryogenesis and early larval development in the Pacific triton, Charonia tritonis (Gastropoda: Caenogastropoda) |
| PUBLISHED: |
Routledge |
| DESCRIPTION: |
237-246 p.; 28 cm. |
| NOTES: |
Invertebrate reproduction & development, 2013, Vol.57 (3), p.237-246 |
| NOTES: |
The Pacific triton, Charonia tritonis , is one of the largest carnivorous gastropods in coral reef ecosystems. This species has been in danger of extinction for many years due to unsustainable fishing. |
| NOTES: |
The scarcity of information about its life history greatly limits its artificial propagation and in this study, we present information on embryogenesis and early larval development. |
| NOTES: |
Females produced 550–600 egg capsules during each spawn, each of which contained approximately 3000 yolky eggs that measured 428.0 ± 16.10 æm in diameter. |
| NOTES: |
Formation and retraction of a small polar lobe were identified during egg maturation and the first two divisions, and absorption of the polar lobe into the 3D cell was observed during the eight-cell stage. |
| NOTES: |
The early embryo developed into a stereoblastula by spiral cleavages, and gastrulation by epiboly ended by days 5–7. The trochophore, protoconch, and eyespots appeared at 9–12, 15–18, and 20–22 days, respectively. |
| NOTES: |
An average of 2000 free-swimming veligers with a shell length of 664.2 ± 49.81 æm were released from each capsule after 59 ± 4.0 days incubation at 24 ± 0.5 °C. |
| NOTES: |
The vela were reduced by the shedding of cilia after eight weeks, although the left tentacle was still absent after 20 weeks. |
| SUBJECT: |
Coral reefs. |
| SUBJECT: |
Ecosystem. |
| SUBJECT: |
Gastropoda. |
| SUBJECT: |
Larval development. |
| ADDED ENTRY: |
Zhang, Lu-Ping |
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Title Information
