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Reproductive aspects and tolerance to temperature and salinity of eggs of pharaoh cuttlefish Sepia pharaonis Ehrenberg, 1831 from Vietnam waters |
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| รหัสดีโอไอ | |
| Creator | Minh Duy Mai |
| Title | Reproductive aspects and tolerance to temperature and salinity of eggs of pharaoh cuttlefish Sepia pharaonis Ehrenberg, 1831 from Vietnam waters |
| Contributor | Minh Duy Mai and Thu Thi Xuan Nguyen |
| Publisher | Phuket Marine Biological Center |
| Publication Year | 2564 |
| Journal Title | Phuket Marine Biological Center Research Bulletin |
| Journal Vol. | 78 |
| Page no. | 155161 |
| Keyword | pharaoh cuttlefish, Sepia pharaonis, reproductive aspects, egg, tolerance, temperature, salinity,Vietnam |
| URL Website | https://km.dmcr.go.th/th/c_268 |
| Website title | PMBC Research Bulletin |
| ISSN | 2697-6325 |
| Abstract | This paper reports sex ratio, gonad development, and fecundity of the pharaoh cuttlefish (Sepia pharaonis Ehrenberg, 1831) field collected specimens and tolerance of live eggs obtained from broodstock to temperature and salinity in tank conditions. The cuttlefish specimens collected from Vietnam waters showed an average ratio of male: female of 1:1.07. When reaching a mantle length of 81?90 mm, the cuttlefish became sexually mature. The fecundity was 52?1938 eggs depending on female cuttlefish size. The newly laid eggs from broodstock had an average size of 40 mm and weight of 1.8 g. After 14?20 days, the eggs hatched. The hatchlings had no metamorphosis, lived on the yolk for 3?5 days and then began feeding on provided foods. The embryo normally developed at temperature of 26?28?C and salinity of 30?35?, but with a hatching rate of lower than 50%. |
