The larval development stages of the Japanese Snail, Rapana thomasiana, Gross 1861, in the egg capsule
| dc.contributor.author | Uyan, Orhan | |
| dc.contributor.author | Aral, Orhan | |
| dc.date.accessioned | 2014-08-21T11:26:43Z | |
| dc.date.available | 2014-08-21T11:26:43Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | In the present study, the larval development stages in the egg capsule of the Japanese snail (Rapana thomasiana, Gross1861), distributed in the Black Sea were investigated. At the moment of capsule release, the diameter of the spherical egg was 151.5 ± 2.61 ?m. After the capsule was released, the eggs gradually lost their spherical structure. After the completion of the early larval development stage in the egg capsule, the larvae hatched from the capsule as a veliger on day 20. The larvae were pelagic during the following 5 days and settled to the bottom day 25. The length and width of the settled larvae reached 426.8 ± 2.84 ?m and 305.6 ± 2.2 ?m with a growth rate of 181.2% and 101.7%, respectively. | |
| dc.description.abstract | Bu çalışmada, Karadeniz’de yayılış gösteren deniz salyangozunun (Rapana thomasiana) yumurta kapsülü içerisindeki larval gelişim dönemlerinin saptanması amaçlanmıştır. Yumurtlama anında küresel olan yumurta çapı 151,5 ± 2,61 ?m olarak ölçülmüştür. Larvalar ilk gelişimlerini kapsül içerisinde tamamlamış ve 20. günde veliger larva olarak kapsülden dışarı çıkmışlardır. Kapsülü terkeden pelajik larvalar, 25. günde türe özgü larval şekil alarak bentik bölgeye yerleşmişlerdir. Bu dönemde larvaların eni ve boyu, sırasıyla % 181,2 ve % 101,7 oranındaki artışla 426,8 ± 2,84 ?m X 305,6 ± 2,2 ?m olarak belirlenmiştir | |
| dc.identifier.citation | Uyan, O., Aral, O., "The larval development stages of the Japanese Snail, Rapana thomasiana, Gross 1861, in the egg capsule." TÜBİTAK, Türk Zooloji Dergisi, Cilt 27, Sayı 4, 331-337. 2003. | |
| dc.identifier.uri | http://journals.tubitak.gov.tr/zoology/issues/zoo-03-27-4/zoo-27-4-9-0204-4.pdf | |
| dc.identifier.uri | https://hdl.handle.net/11486/411 | |
| dc.language.iso | en | |
| dc.publisher | TÜBİTAK, Türk Zooloji Dergisi | |
| dc.relation.publicationcategory | Makale - Kategorisiz | |
| dc.subject | Japanese snail | |
| dc.subject | Rapana thomasiana | |
| dc.subject | Gross 1861 | |
| dc.subject | Larval development | |
| dc.subject | Black Sea | |
| dc.subject | Deniz Salyangozu | |
| dc.subject | Larval gelişim | |
| dc.subject | Karadeniz | |
| dc.title | The larval development stages of the Japanese Snail, Rapana thomasiana, Gross 1861, in the egg capsule | |
| dc.title.alternative | Deniz Salyangozunun, Rapana thomasiana Gross 1861, Yumurta Kapsülü İçerisindeki Larval Gelişim Evreleri | |
| dc.type | Article |
