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Association of oocyte development with ovarian morphologyand gonadosomatic index in the sesarmid crabEpisesarma singaporense (Tweedie, 1936) |
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| รหัสดีโอไอ | |
| Creator | 1. Chanyut Sudtongkong 2. Sinlapachai Senarat 3. Gen Kaneko 4. Chamnan Para |
| Title | Association of oocyte development with ovarian morphologyand gonadosomatic index in the sesarmid crabEpisesarma singaporense (Tweedie, 1936) |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 1 |
| Page no. | 50-56 |
| Keyword | estuarine area, female reproductive system, histology, oocyte, Sesarmid crabs, Thailand |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The sesarmid crab Episesarma singaporense is an economically important crab in Thailand. In this study, weassociated the integrated classification of oocyte development with ovarian morphology and the gonadosomatic index (GSI). Allspecimens were collected in October 2018 and January February 2019. The germinative centers of the ovary contained oocytesin oogonia proliferation and primary growth phases (previtellogenic stage; Oc1), whereas peripheral germinal zones containedthose in the secondary growth phase: early vitellogenic stage (Oc2), late vitellogenic stage (Oc3), and mature stage (Oc4). Thedeveloping ovary was classified into four stages. Stage I ovary (immature stage, GSI = 0.17?0.09, n=58) was characterized bytranslucent color and oocytes at the oogonia proliferation and primary growth phases. Stage II ovary (developing stage; GSI =0.59?0.09, n=49) had creamy white color and mainly contained Oc2 oocytes. In Stage III (developed stage; GSI = 1.38?0.09,n=62), ovary color turned into bright orange and Oc3/Oc4 oocytes were prominently observed. Stage IV ovary (mature stage;GSI = 2.54?0.46, n=84) showed deep yellow to red/orange color and was dominantly composed of mature oocytes. These dataprovide useful information to estimate the oocyte development from ovarian morphology. |
