| 摘要: |
| 日照市位于山东省东南的黄海之滨，海岸线长99.6km，沿海滩涂面积约51km2。自1983年起，笔者每年都带学生到日照沿海进行专业实习。本文是作者对近20年实习资料的总结。结果发现：由于沿海的开发利用，潮间带动物的群落结构发生巨变，生物种群数量正逐年减少。 |
| 关键词: 潮间带 生境 动物群落 |
| DOI： |
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| IMPACT OF RIZHAO COASTAL AREA EXPLOITATION ON INTER-TIDAI HABITATS AND ZOO-BENTHIC COMMUNITIES |
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Gao Xiang, Xu Jingming
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Department of Biology, Linyi Teachers College
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| Abstract: |
| Abundant invertebrates of various ecological types live in the Rizhao coastal area’s wide inter tidal zones characterized by different configurations before 1990. Since the 1990s, however, development of coastal tourism, construction of power plants and docks, creation of field by enclosing beach, etc. caused great changes of the coastal environment. Because of this, the zoobenthic com munities and number of economically valuable animals in the tidal zones showed obvious changes. The animal community change was reflected by the almost complete disappearance of some animals such as Acanthochiton rubrolineatus, Arenicola brasiliensis, Notoacmea schrencki, Littorina brevicula, Vignadula atrata, Ostrea cucullata, Chthamalus challengeri, Ligia exotica, Ocypode stimpsoni, Scopimera globosa in the upper part of the tidal zone, as a result of their migration to the low and middle parts. Among the economically valuable animals, crabs (such as Portunus trituberculatus, Charybdis japonica, Hemigrapsus penicillatus, Helice tientsinensis, Gaetice depressus, Macrophthalmus japonicus, Matuta planipes) decreased by more than 50%; and shellfishes (such as Rapana venosa, Thais clavigera, Neverta didyma, Lunatia gilva, Sca pharca subcrenata, Mytilus edulis, Ostrea denselamellosa, Mactra sulcataris, Meretrix meretrix, Solen gouldii, Nuttallia olivacea) also decreased strikingly. |
| Key words: tidal zone habitat zoo-benthic communities |
