Polychaete fauna in Japanese estuaries and intertidal flats, with special reference to revision of "common species".

1.综述了日本最常见的微咸水种3种的分类、生活史和分布，并提供了日本的鉴定检索表。2.对有莱克海小泽河河口5科11种的生态分布进行了论证。3.采用年度定期采样的方法，研究了小泽河河口4种共域网生多毛类繁殖集群的时空分离性。通过野外观察和室内交叉受精实验，对两个种间的繁殖隔离机制进行了探讨。4.1997年和2002年在有里亚克海约90个采样点采集的多毛类标本，分别鉴定为42科和46科。在日本浅海许多地点采集的约700个标本中，共鉴定出15种，分属于2属。6.通过对名古屋藤毛潮滩的调查，共记录到16种，隶属11科。

1.A review of taxonomy, life history and distribution of 3 Hediste species (the most common brackish-water species) were published with a key for identification in Japanese.2.Ecological distributions of 11 species belonging to 5 family in an estuary of the Omuta-gawa River in Ariake Sea were demonstrated.3.Spatial and temporal separation in reproductive swarming among 4 sympatric nereidid polychaetes were examined in an estuary of the Omuta-gawa River by annual periodical sampling. Reproductive isolation mechanism between two Hediste species was discussed based on field observation on their simultaneous swarming and mass-spawning and on laboratory cross-fertilization experiments.4.Polychaete specimens collected from ca.90 sites in Ariake Sea in 1997 and 2002 were identified to 42 and 46 families, respectively. Some species new to science or new to Japanese fauna seem to be involved.5.As for Glyceridae, ca.700 specimens collected from many sites in Japanese shallow coastal waters were identified to 15 species belonging to 2 genera. A few species seem to be new to science or new to Japanese fauna.6.Through a survey in tidal flats of Fujimae-higata in Nagoya, 16 species belonging to 11 families were recorded.