摘要
１９９４年２月至１９９５年１月在印尼Ｒｉａｕ省Ｂｉｎｔａｎ岛进行了关于凤螺的生物学与生态学的研究。研究表明，凤螺群最密集期是８月份，集中地是低潮区；最稀少是在２月份，高潮区。凤螺属于食草类动物，主要进食是藻类、海草、浮游生物和岩屑。截自观察期结束时的统计，生长率为１．４４ｍｍ／月，存活率为１６％。凤螺体形大小约１２ｍｍ～８２ｍｍ，最大凤螺达到或大于３４ｍｍ，分布在中潮区或高潮区。相反的，各种大小的凤螺可在低潮区发现，雄性与雌性的比率为１：２，雄性体形通常大于雌性。再者，由于凤螺暴露在海岛的近海处和紧挨赤道线的水域，其所需的环境参数的主要特点是相对稳定的温度和海水盐度以及丰富的雨量。
篠ome biology and ecology aspects of Dog conch （Strombus canarium）have beencarried out fron1 February 1994 to January 1995 at Riau province（Bintan Island），In-donesia，The field study shows that the highest concentration of conchs is on August andat Low tide zone.Whereas，the lowest coneentration is on February and at High tidezone. Moreover，the conchs are herbivore，mainly eat on algae， seagrass， plankton anddetritus. The monthly growth rate is 1．44 mm/month with survival rate was 16％ at theend of observation. The range size of Dog conch is 12 mm to 82 mm，the bigger size（≥34mm）distribut－ed at Mid－tide and High－tide zone，contrary， all range sizes can be found at Lower-tide zone.The sex ratio，male and female is 1：2，the male usually bigger than female. Furthermore，the main features of environmental parameters are relatively uniform tem-perature and salinity， and abundant of rainfall due to the maritime exposure to the islandand its close to the Equator line.
基金
国际科学基金
关键词
水晶凤螺
分布
食性
生长与存活
环境参数
：Dog conch，distribution，feeding habit，growth and survial，environmentalparameters
