The larval development stage of the japanese snail,Rapana thomasiana Gross 1861,in the egg capsule
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 um olarak ölçülmüştür. Larvalar ilk gelişimlerini kapsül içerisinde tam...
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| Veröffentlicht in: | Turkish journal of zoology 2003, Vol.27 (4), p.331-337 |
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| creator | UYAN, Orhan ARAL, Orhan |
| description | 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 um olarak ölçülmüştür. Larvalar ilk gelişimlerini kapsül içerisinde tamamlamış ve 20. günde veliger larva olarak kapsülden dışarı çıkmışlardır. Kapsülü terk eden 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 um X 305,6 ± 2,2 um olarak belirlenmiştir.
In the present study, the larval development stages in the egg capsule of the Japanese snail (Rapana thomasiana, Gross 1861 ), distributed in the Black Sea were investigated. At the moment of capsule release, the diameter of the spherical egg was 151.5 ± 2.61 urn. After the capsule was released, the eggs gradually lost their spherical structure. After the completion of the early lar-val development stage in the egg capsule, the larvae hatched from the capsule as a veliger on day 20. The larvae were pelagic dur-ing the following 5 days and settled to the bottom day 25. The length and width of the settled larvae reached 426.8 ± 2.84 urn and 305.6 ± 2.2 urn with a growth rate of 181.2% and 101.7%, respectively. |
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In the present study, the larval development stages in the egg capsule of the Japanese snail (Rapana thomasiana, Gross 1861 ), distributed in the Black Sea were investigated. At the moment of capsule release, the diameter of the spherical egg was 151.5 ± 2.61 urn. After the capsule was released, the eggs gradually lost their spherical structure. After the completion of the early lar-val development stage in the egg capsule, the larvae hatched from the capsule as a veliger on day 20. The larvae were pelagic dur-ing the following 5 days and settled to the bottom day 25. The length and width of the settled larvae reached 426.8 ± 2.84 urn and 305.6 ± 2.2 urn with a growth rate of 181.2% and 101.7%, respectively.</description><identifier>ISSN: 1300-0179</identifier><language>eng</language><publisher>TÜBİTAK</publisher><subject>Aquatic Biology and Ecology ; benthos ; Black Sea ; büyüme oranı ; developmental stages ; döllenme ; fertilization ; gelişme dönemleri ; growth rate ; hatching ; Karadeniz ; larva ; larvae ; Rapana thomasiana ; Reproduction, Development and Life Cycle(Wild Animals) ; salyangoz ; snails ; su tabanı organizmaları ; Sucul Biyoloji ve Ekoloji ; yumurtadan çıkmak ; Üreme, Gelişme ve Hayat Döngüsü(Yabani Hayvanlar)</subject><ispartof>Turkish journal of zoology, 2003, Vol.27 (4), p.331-337</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,4010</link.rule.ids></links><search><creatorcontrib>UYAN, Orhan</creatorcontrib><creatorcontrib>ARAL, Orhan</creatorcontrib><title>The larval development stage of the japanese snail,Rapana thomasiana Gross 1861,in the egg capsule</title><title>Turkish journal of zoology</title><description>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 um olarak ölçülmüştür. Larvalar ilk gelişimlerini kapsül içerisinde tamamlamış ve 20. günde veliger larva olarak kapsülden dışarı çıkmışlardır. Kapsülü terk eden 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 um X 305,6 ± 2,2 um olarak belirlenmiştir.
In the present study, the larval development stages in the egg capsule of the Japanese snail (Rapana thomasiana, Gross 1861 ), distributed in the Black Sea were investigated. At the moment of capsule release, the diameter of the spherical egg was 151.5 ± 2.61 urn. After the capsule was released, the eggs gradually lost their spherical structure. After the completion of the early lar-val development stage in the egg capsule, the larvae hatched from the capsule as a veliger on day 20. The larvae were pelagic dur-ing the following 5 days and settled to the bottom day 25. The length and width of the settled larvae reached 426.8 ± 2.84 urn and 305.6 ± 2.2 urn with a growth rate of 181.2% and 101.7%, respectively.</description><subject>Aquatic Biology and Ecology</subject><subject>benthos</subject><subject>Black Sea</subject><subject>büyüme oranı</subject><subject>developmental stages</subject><subject>döllenme</subject><subject>fertilization</subject><subject>gelişme dönemleri</subject><subject>growth rate</subject><subject>hatching</subject><subject>Karadeniz</subject><subject>larva</subject><subject>larvae</subject><subject>Rapana thomasiana</subject><subject>Reproduction, Development and Life Cycle(Wild Animals)</subject><subject>salyangoz</subject><subject>snails</subject><subject>su tabanı organizmaları</subject><subject>Sucul Biyoloji ve Ekoloji</subject><subject>yumurtadan çıkmak</subject><subject>Üreme, Gelişme ve Hayat Döngüsü(Yabani Hayvanlar)</subject><issn>1300-0179</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFy8sKwjAUBNAsFKyPP3CRD2ghIaDtWnyspfty1duamhe5bcG_txX3rmaGw8xYIpUQmZD7YsGWRK0QshAyT9itfCI3EAcw_IEDGh8suo5TBw1yX_Nu9BYCOCTk5ECb9DpNGMVbID3Vc_REXOY7mWr3vWDT8DsE6g2u2bwGQ7j55YptT8fycMl6A6-btlWI2kJ8V0pIlas__AHZmT-7</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>UYAN, Orhan</creator><creator>ARAL, Orhan</creator><general>TÜBİTAK</general><scope/></search><sort><creationdate>2003</creationdate><title>The larval development stage of the japanese snail,Rapana thomasiana Gross 1861,in the egg capsule</title><author>UYAN, Orhan ; ARAL, Orhan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-ulakbim_primary_301383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Aquatic Biology and Ecology</topic><topic>benthos</topic><topic>Black Sea</topic><topic>büyüme oranı</topic><topic>developmental stages</topic><topic>döllenme</topic><topic>fertilization</topic><topic>gelişme dönemleri</topic><topic>growth rate</topic><topic>hatching</topic><topic>Karadeniz</topic><topic>larva</topic><topic>larvae</topic><topic>Rapana thomasiana</topic><topic>Reproduction, Development and Life Cycle(Wild Animals)</topic><topic>salyangoz</topic><topic>snails</topic><topic>su tabanı organizmaları</topic><topic>Sucul Biyoloji ve Ekoloji</topic><topic>yumurtadan çıkmak</topic><topic>Üreme, Gelişme ve Hayat Döngüsü(Yabani Hayvanlar)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>UYAN, Orhan</creatorcontrib><creatorcontrib>ARAL, Orhan</creatorcontrib><jtitle>Turkish journal of zoology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>UYAN, Orhan</au><au>ARAL, Orhan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The larval development stage of the japanese snail,Rapana thomasiana Gross 1861,in the egg capsule</atitle><jtitle>Turkish journal of zoology</jtitle><date>2003</date><risdate>2003</risdate><volume>27</volume><issue>4</issue><spage>331</spage><epage>337</epage><pages>331-337</pages><issn>1300-0179</issn><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 um olarak ölçülmüştür. Larvalar ilk gelişimlerini kapsül içerisinde tamamlamış ve 20. günde veliger larva olarak kapsülden dışarı çıkmışlardır. Kapsülü terk eden 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 um X 305,6 ± 2,2 um olarak belirlenmiştir.
In the present study, the larval development stages in the egg capsule of the Japanese snail (Rapana thomasiana, Gross 1861 ), distributed in the Black Sea were investigated. At the moment of capsule release, the diameter of the spherical egg was 151.5 ± 2.61 urn. After the capsule was released, the eggs gradually lost their spherical structure. After the completion of the early lar-val development stage in the egg capsule, the larvae hatched from the capsule as a veliger on day 20. The larvae were pelagic dur-ing the following 5 days and settled to the bottom day 25. The length and width of the settled larvae reached 426.8 ± 2.84 urn and 305.6 ± 2.2 urn with a growth rate of 181.2% and 101.7%, respectively.</abstract><pub>TÜBİTAK</pub><oa>free_for_read</oa></addata></record> |
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| issn | 1300-0179 |
| language | eng |
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| source | EZB-FREE-00999 freely available EZB journals; TÜBİTAK Scientific Journals |
| subjects | Aquatic Biology and Ecology benthos Black Sea büyüme oranı developmental stages döllenme fertilization gelişme dönemleri growth rate hatching Karadeniz larva larvae Rapana thomasiana Reproduction, Development and Life Cycle(Wild Animals) salyangoz snails su tabanı organizmaları Sucul Biyoloji ve Ekoloji yumurtadan çıkmak Üreme, Gelişme ve Hayat Döngüsü(Yabani Hayvanlar) |
| title | The larval development stage of the japanese snail,Rapana thomasiana Gross 1861,in the egg capsule |
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