Dietary Changes in the Abalone, Haliotis discus hannai , and Relationship with the Development of the Digestive Organ
Dietary Changes in the Abalone, Haliotis discus hannai , and Relationship with the Development of the Digestive Organ
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DOI：
10.6090/jarq.37.89
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发表时间：
2003-04
影响因子：
0.4
通讯作者：
H. Takami;Tomohiko Kawamura
中科院分区：
文献类型：
--
作者：
H. Takami;Tomohiko Kawamura
皱纹盘鲍（Haliotis discus hannai）的食性随生长而变化。H.通过回顾最近对该物种食性的研究，确定了皱纹盘鱼。第一个变化发生在变态的时候，即从lecithotrophy颗粒喂养的转变。在第二个变化中，当壳长（SL）达到约0.6-0.8 mm的值时，后期幼虫能够消化硅藻饲料，并且它们在有效消化的菌株上生长得更快。最后的变化包括从生物膜为主的饮食到大型藻类为主的饮食的转变。幼鲍（> 1.8mm SL）能有效利用幼鲍。这些食性的变化与消化酶活性的个体发育变化和齿舌形态的发育密切相关。
The feeding habits of the Ezo abalone, Haliotis discus hannai, changed with growth. Three major changes in the feeding of H. discus hannai were identified by reviewing recent studies on the feeding habits of this species. The first change occurred at the time of the metamorphosis, namely a shift from lecithotrophy to particle feeding. In the second change, when the shell length (SL) reached values of about 0.6–0.8 mm, post-larvae were able to digest diatom diets and they grew more rapidly on efficiently digested strains. The final change consisted of a shift from a biofilm-dominated diet to a macroalgal-dominated diet. Post-larval abalone (> 1.8 mm SL) were able to utilize juvenile macroalgae efficiently. These changes in the feeding habits were closely related to ontogenetic changes in the digestive enzyme activities and the development of the radula morphology.