长乐国际机场附近沙滩潮间带的生态

本文研究了福建长乐国际机场附近漳港沙滩潮间带的生态。结果表明，该区生物６０种。其中，多毛类动物１９种，软体动物２４种，甲壳动物１１种，棘皮动物２种，其他动物４种；种类性质以热带，亚热带种占优势。平均生物量４．３４ｇ／ｍ＾２，平均栖息密度１５个／ｍ＾２。数量以中潮区较大。群落结构不大稳定，初步认为与沙滩特殊生境有关。

Ecology on intertidal benthos of sandy beach around international airport, Changle

A total of 60 species distributed in sandy beach around Zhanggang, Changle, Fujian are presented in this paper. It is made up of 19 species of Polychaeta, 24 species of Mollusca, 11 species of Crustacea, 2 species of Echinoderms and 4 species of other genera. As a faunal na ture, tropical and subtropical species predominated absolutely over the others, there were some strong warm water nature species, and eurythermal-euryhalinous eurytopic species.An average biomass of 4. 34g/m2 and a density of 15 ind, /m2 were characteristics of the Zhanggang beach. The vertical distribution of number (biomass and density) was larger in middle tidal zone than high tide zone and low tide zone. There were 3 main biological zones in the community structure: Ocypod slimpson-Scopimera glohaa-Gomphina (Macridiscus ) veneriformis in high tide zone, Nephty californienris-Solen arcuatus-Doilla wichmanni in middle zone, and Mactra antiquata-Nevrita didyma-Sisunculus sp. in low zone.