The mode of life of Montacuta elevata, a bivalve 'commensal' with Clymenella torquata (Polychaeta)
The mode of life of Montacuta elevata, a bivalve 'commensal' with Clymenella torquata (Polychaeta)
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Montacuta elevata 的生活模式，一种与 Clymenella torquata（多毛类）“共生”的双壳类动物
DOI：
10.1139/z68-124
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发表时间：
1968
期刊：
影响因子：
--
通讯作者：
J. Gage
中科院分区：
文献类型：
--
作者：
J. Gage
这种小的红蜘蛛双壳动物，Montakuta levata，被发现通过一个字节轴附着在Clymenella torquata沙管的下端。高山分枝杆菌的样本于1965年每月从马萨诸塞州巴恩斯特拉伯港的潮间带沙滩采集。双壳类被发现是雌雄同体的，其性腺在夏天成熟，并在外套腔内孵化幼虫到有壳的绒毛期。在浮游生物中发现了后期阶段；最大的阶段可能直接与发现的与扭曲藻有关的最小个体有关。虽然在样本中没有从测量微体贝类大小的频率分布中检测到明确的模式，但对贝壳的年度生长检查的简单分析至少区分了五个年龄级。一些实验室对这些高度能动性的双壳类动物进行的实验证明，它们显示出直接的化学原生运动。它们也会对其微环境的某些物理因素做出反应，表现出方向性。
The small erycinacean bivalve, Montacuta elevata, is found attached by a byssus to the lower end of the sandy tubes of Clymenella torquata. Samples of M. elevata were collected monthly in 1965 from an intertidal sand-flat in Barnstable Harbor, Mass. The bivalve was found to be a protandrous hermaphrodite, with its gonads ripening in summer, and to brood the larvae, within the mantle cavity, to a shelled veliger stage. Later stages were found in the plankton; the largest ones could be linked directly to the smallest individuals found associated with C. torquata. Although no clear pattern could be detected from a frequency distribution of measurements of the size of M. elevata in the samples, a simple analysis of the annual growth-checks on the shells distinguished at least five year-classes.Some laboratory experiments with these highly motile bivalves established that they show a direct chemoorthokinesis to the 'host'. They also respond to certain physical factors of their microenvironment, showing a direc...