Reproductive pattern and biochemical composition of the sea urchin, Paracentrotus lividus (Lamarck, 1816) in west Aegean Sea- Türkiye

Makaleler > Tam Makale · 2026

Yazarlar: Aysun KÜÇÜKDERMENCİ, Aynur LÖK, Ali KIRTIK, Evrim KURTAY, Serpil SERDAR, Selçuk YİĞİTKURT

BMC ZOOLOGY, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2026, cilt 11, ss 1-15

DOI: 10.1186/s40850-026-00256-4

Özet

<p>This&nbsp;study&nbsp;focuses&nbsp;on&nbsp;the&nbsp;annual&nbsp;reproductive&nbsp;cycle&nbsp;and&nbsp;biochemical&nbsp;of&nbsp;<em>Paracentrotus&nbsp;lividus</em>&nbsp;(Lamarck,&nbsp;1816).&nbsp;Sixty</p><p>sea&nbsp;urchins&nbsp;were&nbsp;collected&nbsp;monthly&nbsp;from&nbsp;July&nbsp;2018&nbsp;to&nbsp;June&nbsp;2019&nbsp;in&nbsp;Karaburun,&nbsp;Aegean&nbsp;Sea.&nbsp;The&nbsp;reproductive&nbsp;cycle</p><p>was&nbsp;divided&nbsp;into&nbsp;six&nbsp;stages,&nbsp;with&nbsp;mature&nbsp;gonads&nbsp;observed&nbsp;in&nbsp;October-November&nbsp;and&nbsp;February-March,&nbsp;coinciding</p><p>with&nbsp;spawning.&nbsp;Despite&nbsp;a&nbsp;decrease&nbsp;in&nbsp;gonadosomatic&nbsp;index,&nbsp;the&nbsp;gut&nbsp;index&nbsp;remained&nbsp;relatively&nbsp;stable,&nbsp;indicating</p><p>sufficient&nbsp;environmental&nbsp;food.&nbsp;The&nbsp;reduced&nbsp;gonadosomatic&nbsp;index&nbsp;suggests&nbsp;the&nbsp;potential&nbsp;prioritization&nbsp;of&nbsp;gut&nbsp;use</p><p>for&nbsp;survival&nbsp;over&nbsp;reproduction.&nbsp;The&nbsp;maximum&nbsp;gonadosomatic&nbsp;index&nbsp;of&nbsp;female&nbsp;was&nbsp;5.01&nbsp;±&nbsp;2.10%&nbsp;(at&nbsp;24&nbsp;°C)&nbsp;in&nbsp;July</p><p>while&nbsp;the&nbsp;maximum&nbsp;value&nbsp;of&nbsp;male&nbsp;was&nbsp;observed&nbsp;in&nbsp;July&nbsp;(4.02&nbsp;±&nbsp;0.57%).&nbsp;There&nbsp;was&nbsp;no&nbsp;correlation&nbsp;found&nbsp;between</p><p>gonadosomatic&nbsp;indices&nbsp;and&nbsp;temperature&nbsp;or&nbsp;photoperiod&nbsp;(r=&nbsp;-0.123-&nbsp;0.177,&nbsp;p&nbsp;&gt;&nbsp;0.05).&nbsp;Gender&nbsp;differences&nbsp;were</p><p>observed&nbsp;in&nbsp;gonadosomatic&nbsp;index&nbsp;and&nbsp;perivisceral&nbsp;index&nbsp;(p&nbsp;&lt;&nbsp;0.05),&nbsp;but&nbsp;not&nbsp;in&nbsp;gut&nbsp;index,&nbsp;Aristotle’s&nbsp;lantern&nbsp;index,&nbsp;or</p><p>test&nbsp;index.&nbsp;Biochemical&nbsp;analysis&nbsp;indicated&nbsp;higher&nbsp;protein&nbsp;levels&nbsp;preceding&nbsp;the&nbsp;primary&nbsp;egg-laying&nbsp;period&nbsp;in&nbsp;spring,</p><p>while&nbsp;glycogen&nbsp;and&nbsp;lipids&nbsp;were&nbsp;utilized&nbsp;before&nbsp;other&nbsp;periods&nbsp;of&nbsp;egg&nbsp;laying&nbsp;throughout&nbsp;the&nbsp;year.&nbsp;Understanding&nbsp;the</p><p>annual&nbsp;reproductive&nbsp;cycle&nbsp;and&nbsp;nutritional&nbsp;dynamics&nbsp;of&nbsp;P.&nbsp;lividus&nbsp;offers&nbsp;valuable&nbsp;insights&nbsp;for&nbsp;effective&nbsp;reproduction</p><p>management,&nbsp;opening&nbsp;increasing&nbsp;opportunities&nbsp;for&nbsp;aquaculture&nbsp;globally&nbsp;in&nbsp;the&nbsp;foreseeable&nbsp;future.</p>

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