Early life history and biology of the common fish parasite, Lironeca ovalis (Say) (Isopoda, Cymothoidae)
Early life history and biology of the common fish parasite, Lironeca ovalis (Say) (Isopoda, Cymothoidae)
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常见鱼类寄生虫 Lironeca ovalis（Say）（Isopoda，Cymothoidae）的早期生活史和生物学
DOI：
10.2307/1351401
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
J. Kerby
中科院分区：
文献类型：
--
作者：
P. Sandifer;J. Kerby
第一个后有袋动物阶段的常见鱼类寄生虫，卵形Lironeca，被描述并发现与aeathoa medialis Richardson相同。这表明，a . oculata （Say）也可能是L. ovalis的一个年轻阶段。在实验室中，观察到幼鱼等足类很容易附着在潜在的寄主鱼，幼鱼条纹鲈和白鲈上。然而，这些寄生虫很容易被移除，而且没有迹象表明它们实际上是以宿主鱼为食的。在培养试验中，这些等足类动物也不以新孵化的鹦鹉耳蒿（Artemia nauplii）或单细胞藻类（Monochrysis lutheri和Phaeodactylum tricornutum）为食。年轻的等足类动物似乎只能在没有宿主的情况下自由游泳1-2周，但这些动物可能能够通过浮游生物从一个宿主转移到另一个宿主，从而在很长一段时间内保持或多或少的自由生存。
The first post-marsupial stage of the common fish parasite, Lironeca ovalis, is described and found to be identical to Aegathoa medialis Richardson. It is suggested that A. oculata (Say) may also be a young stage of L. ovalis. The juvenile isopods were observed to attach readily to potential host fish, juvenile striped bass and white perch, in the laboratory. However, the parasites could be dislodged easily, and there was no indication that they were actually feeding on the host fish. The isopods also did not feed on newly hatched Artemia nauplii or unicellular algae (Monochrysis lutheri and Phaeodactylum tricornutum) in culture trials. It appears that the young isopods can survive free-swimming for only 1–2 weeks without a host, but the animals may be able to maintain a more-or-less free existence for an extended period by moving from host to host via plankton.