| 摘要: |
| 三突蛀木水虱 Limnoria tripunctata Menzies (图1)属甲壳纲、等足目、扇肢亚目、蛀木水虱科(Limnoridae),分布于太平洋、大西洋和印度洋,在我国是一种常见的蛀木害虫。
三突蛀木水虱的体型较小,在木材表面凿木穴居,一般不易见到。它是海洋中木船、网樯、码头桩柱、海港护木和养殖池闸门等木质结构物的破坏者之一，能造成巨大的经济损失。
为了有效地防除蛀木水虱,需要对它的生态学和生物学进行详细的研究。本文根据作者1983-1984年在青岛港对三突蛀木水虱自然种群进行为时一周年的随机取样调查分析,和连续几年在实验室培养实验观察的结果,对其繁殖习性探讨、报道如下。 |
| 关键词: 青岛港、三突蛀木水虱、繁殖习性 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第1486号 |
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| STUDY ON THE BREEDING HABITS OF LIMNORIA TRIPUNCTATA MENZIES IN THE QINGDAO HARBOUR |
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Huang Xiuming, Yin Jiande, Zhang Fengxuan, Peng Shujie
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| 1. The sexes of Limnoria are separate. The development of Limnoria tripunctata Menzies is direct, without any pelagic larval stage. The whole breeding process includes dispersal migration, copulation, development of embryo and larval hatching.
2. According to morphological changes, the life history of Limnoria tripunctata Menzies may be divided into following five stages:
(1)embryonic development stage,
(2)banana larva stage,
(3)red-ege larva stage,
(4)six-pair peraopod larva stage,
(5)adult stage.
The gribbles pass for the first three stages in brood pouch and live in burrows in the last two stages.
3. Although we may find the gravid female every month, but it does not mean reproduction all the year round. The newly hatching larvae were observed only in March under natural conditions.
The breeding season of Limnoria tripunctata Menzies in the Qingdao harbor is from March to November, with a peak in April to July.
4. A total of 107 gravid females was examined. The number of eggs carried by a single gravid female vary from 3 (the least )to 21(the most). Most of the gravid female carried the eggs in number of 5-9 and 12-16 with the percentage of 44.8 and 32.7 respectively. |
| Key words: BREEDING HABITS,LIMNORIA TRIPUNCTATA MENZIES ,QINGDAO HARBOUR |
